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Dell Command Line Reference Guide for the S6100–ON System 9.14.0.0

Dell Command Line Reference Guide for the S6100 ON System ... · 6 Access Control Lists (ACL).....197

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  • Dell Command Line Reference Guide for the S6100–ON System9.14.0.0

  • Notes, cautions, and warnings

    NOTE: A NOTE indicates important information that helps you make better use of your product.

    CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

    WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

    Copyright © 2018 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

    2018 - 07

    Rev. A00

  • Contents

    1 About this Guide...........................................................................................................................................42Objectives......................................................................................................................................................................... 42Audience............................................................................................................................................................................42Conventions......................................................................................................................................................................42Information Icons............................................................................................................................................................. 43

    2 CLI Basics....................................................................................................................................................44Accessing the Command Line........................................................................................................................................44Multiple Configuration Users.......................................................................................................................................... 44Obtaining Help..................................................................................................................................................................45Navigating the CLI........................................................................................................................................................... 46Using the no Command...................................................................................................................................................47Filtering show Commands...............................................................................................................................................47Enabling Software Features on Devices Using a Command Option..........................................................................48

    feature vrf................................................................................................................................................................... 48show feature...............................................................................................................................................................49

    Command Modes............................................................................................................................................................ 50

    3 File Management......................................................................................................................................... 60boot system......................................................................................................................................................................60cd....................................................................................................................................................................................... 62copy................................................................................................................................................................................... 63delete.................................................................................................................................................................................65dir....................................................................................................................................................................................... 66format................................................................................................................................................................................68fsck flash...........................................................................................................................................................................69mkdir.................................................................................................................................................................................. 70mount nfs..........................................................................................................................................................................70rmdir................................................................................................................................................................................... 71upgrade system................................................................................................................................................................ 72rename...............................................................................................................................................................................75show boot system............................................................................................................................................................75show bootvar....................................................................................................................................................................76show file-systems.............................................................................................................................................................77show os-version............................................................................................................................................................... 79show running-config........................................................................................................................................................80show startup-config........................................................................................................................................................ 84show version.....................................................................................................................................................................85upgrade boot.....................................................................................................................................................................87verify..................................................................................................................................................................................88

    4 Control and Monitoring................................................................................................................................90

    Contents 3

  • alias.................................................................................................................................................................................... 90banner exec.......................................................................................................................................................................91banner login...................................................................................................................................................................... 93banner motd..................................................................................................................................................................... 94boot-type.......................................................................................................................................................................... 95cam-acl..............................................................................................................................................................................96clear average-power........................................................................................................................................................98clear line............................................................................................................................................................................ 98configure........................................................................................................................................................................... 99disable.............................................................................................................................................................................. 100do...................................................................................................................................................................................... 101enable...............................................................................................................................................................................102enable cpu-clock-monitor..............................................................................................................................................103enable optic-info-update interval..................................................................................................................................104end................................................................................................................................................................................... 104exec-timeout...................................................................................................................................................................106exit.................................................................................................................................................................................... 107ftp-server enable............................................................................................................................................................108ftp-server topdir............................................................................................................................................................. 109ftp-server username....................................................................................................................................................... 110hostname.......................................................................................................................................................................... 111ip ftp password................................................................................................................................................................ 112ip ftp source-interface.................................................................................................................................................... 113ip tftp vrf.......................................................................................................................................................................... 114ip ftp username............................................................................................................................................................... 115ip ftp vrf........................................................................................................................................................................... 116ip telnet server enable.....................................................................................................................................................117ip telnet server vrf...........................................................................................................................................................118ip telnet source-interface............................................................................................................................................... 119ip tftp vrf......................................................................................................................................................................... 120line..................................................................................................................................................................................... 121login concurrent-session................................................................................................................................................122login statistics..................................................................................................................................................................123motd-banner................................................................................................................................................................... 125ping...................................................................................................................................................................................126reload................................................................................................................................................................................129reload-type....................................................................................................................................................................... 131send...................................................................................................................................................................................131service timestamps........................................................................................................................................................ 132show alias........................................................................................................................................................................ 134show alarms.................................................................................................................................................................... 135show cpu-traffic-stats................................................................................................................................................... 136show debugging..............................................................................................................................................................137show environment.......................................................................................................................................................... 138show inventory............................................................................................................................................................... 140

    4 Contents

  • show login statistics....................................................................................................................................................... 142show memory................................................................................................................................................................. 145show processes cpu.......................................................................................................................................................146show processes ipc flow-control.................................................................................................................................. 148show processes memory...............................................................................................................................................150show reload-type............................................................................................................................................................152show reset-reason..........................................................................................................................................................153show software ifm..........................................................................................................................................................154show system................................................................................................................................................................... 156show tech-support.........................................................................................................................................................158ssh-peer-stack-unit.........................................................................................................................................................161stack-unit location-led.................................................................................................................................................... 161telnet................................................................................................................................................................................ 162telnet-peer-stack-unit....................................................................................................................................................164terminal length................................................................................................................................................................ 164traceroute........................................................................................................................................................................165undebug all.......................................................................................................................................................................167warmboot-failure-action................................................................................................................................................ 168write................................................................................................................................................................................. 168

    5 802.1X........................................................................................................................................................ 170debug dot1x......................................................................................................................................................................171dot1x auth-fail-vlan......................................................................................................................................................... 172dot1x auth-server............................................................................................................................................................173dot1x auth-type mab-only..............................................................................................................................................174dot1x authentication (Configuration)........................................................................................................................... 175dot1x authentication (Interface)................................................................................................................................... 175dot1x critical-vlan............................................................................................................................................................ 176dot1x guest-vlan..............................................................................................................................................................177dot1x host-mode.............................................................................................................................................................179mac...................................................................................................................................................................................180dot1x mac-auth-bypass.................................................................................................................................................. 181dot1x max-eap-req.......................................................................................................................................................... 181dot1x max-supplicants....................................................................................................................................................182dot1x port-control...........................................................................................................................................................183dot1x profile..................................................................................................................................................................... 184dot1x quiet-period...........................................................................................................................................................185dot1x reauthentication................................................................................................................................................... 186dot1x reauth-max............................................................................................................................................................186dot1x server-timeout...................................................................................................................................................... 187dot1x static-mab............................................................................................................................................................. 188dot1x supplicant-timeout............................................................................................................................................... 190dot1x tx-period................................................................................................................................................................190show dot1x cos-mapping interface............................................................................................................................... 191show dot1x interface...................................................................................................................................................... 193show dot1x profile...........................................................................................................................................................196

    Contents 5

  • 6 Access Control Lists (ACL).........................................................................................................................197Commands Common to all ACL Types........................................................................................................................ 198

    remark........................................................................................................................................................................ 198show config..............................................................................................................................................................200

    Common IP ACL Commands........................................................................................................................................ 201aclrange profile-name.............................................................................................................................................. 201access-class............................................................................................................................................................. 202clear counters ip access-group.............................................................................................................................. 203feature acloptimized................................................................................................................................................ 204feature aclrange....................................................................................................................................................... 205ip access-group........................................................................................................................................................205ip control-plane egress-filter...................................................................................................................................207show aclrange.......................................................................................................................................................... 208show ip accounting access-list.............................................................................................................................. 209

    Standard IP ACL Commands........................................................................................................................................ 210deny............................................................................................................................................................................210ip access-list standard............................................................................................................................................. 212permit.........................................................................................................................................................................213resequence access-list............................................................................................................................................ 215seq..............................................................................................................................................................................216

    Extended IP ACL Commands........................................................................................................................................218deny............................................................................................................................................................................219deny icmp.................................................................................................................................................................. 221deny tcp.................................................................................................................................................................... 224deny udp....................................................................................................................................................................227ip access-list extended............................................................................................................................................230permit.........................................................................................................................................................................231permit icmp...............................................................................................................................................................233permit tcp................................................................................................................................................................. 235permit udp................................................................................................................................................................ 239resequence access-list............................................................................................................................................242seq............................................................................................................................................................................. 243

    Extended IPv6 ACL Commands...................................................................................................................................247deny........................................................................................................................................................................... 247deny icmp..................................................................................................................................................................248deny tcp.................................................................................................................................................................... 249deny udp.................................................................................................................................................................... 251ipv6 access-list........................................................................................................................................................ 253permit........................................................................................................................................................................ 254permit tcp................................................................................................................................................................. 255permit udp.................................................................................................................................................................257resequence access-list............................................................................................................................................259seq............................................................................................................................................................................. 260

    Common MAC Access List Commands.......................................................................................................................261clear counters mac access-group..........................................................................................................................262

    6 Contents

  • mac access-group................................................................................................................................................... 262show mac access-lists............................................................................................................................................ 264show mac accounting access-list..........................................................................................................................265

    Standard MAC ACL Commands.................................................................................................................................. 266deny........................................................................................................................................................................... 267mac access-list standard........................................................................................................................................ 268permit........................................................................................................................................................................269seq.............................................................................................................................................................................. 271

    Extended MAC ACL Commands..................................................................................................................................272deny........................................................................................................................................................................... 272mac access-list extended........................................................................................................................................274permit........................................................................................................................................................................ 276

    IP Prefix List Commands...............................................................................................................................................278clear ip prefix-list...................................................................................................................................................... 278deny........................................................................................................................................................................... 279ip prefix-list............................................................................................................................................................... 280seq.............................................................................................................................................................................. 281show config.............................................................................................................................................................. 282show ip prefix-list detail...........................................................................................................................................283show ip prefix-list summary....................................................................................................................................284

    Route Map Commands................................................................................................................................................. 285continue.................................................................................................................................................................... 285description................................................................................................................................................................ 286match as-path.......................................................................................................................................................... 287match community....................................................................................................................................................288match interface........................................................................................................................................................289match ip address......................................................................................................................................................290match ip next-hop.................................................................................................................................................... 291match ip route-source.............................................................................................................................................293match metric............................................................................................................................................................ 294match origin..............................................................................................................................................................295match route-type.....................................................................................................................................................296match tag..................................................................................................................................................................297route-map................................................................................................................................................................. 298set as-path............................................................................................................................................................... 299set automatic-tag.................................................................................................................................................... 300set comm-list delete.................................................................................................................................................301set community......................................................................................................................................................... 302set level..................................................................................................................................................................... 304set local-preference.................................................................................................................................................305set metric..................................................................................................................................................................306set metric-type.........................................................................................................................................................307set next-hop.............................................................................................................................................................308set origin................................................................................................................................................................... 309set tag........................................................................................................................................................................310

    Contents 7

  • set weight...................................................................................................................................................................311show config...............................................................................................................................................................312show route-map........................................................................................................................................................313

    deny (for Standard IP ACLs).........................................................................................................................................314deny (for Extended IP ACLs)........................................................................................................................................315seq (for Standard IPv4 ACLs).......................................................................................................................................317deny tcp (for Extended IP ACLs)................................................................................................................................. 319deny ether-type (for Extended MAC ACLs)............................................................................................................... 321deny (for Standard MAC ACLs)...................................................................................................................................322deny (for Extended MAC ACLs)..................................................................................................................................323permit (for Standard IP ACLs)..................................................................................................................................... 325permit arp (for Extended MAC ACLs)........................................................................................................................ 326permit ether-type (for Extended MAC ACLs)............................................................................................................328permit icmp (for Extended IP ACLs)...........................................................................................................................329permit udp (for Extended IP ACLs)..............................................................................................................................331permit (for Extended IP ACLs).................................................................................................................................... 333permit (for Standard MAC ACLs)................................................................................................................................334seq (for Standard MAC ACLs).....................................................................................................................................336permit tcp (for Extended IP ACLs)..............................................................................................................................337seq arp (for Extended MAC ACLs)............................................................................................................................. 339seq ether-type (for Extended MAC ACLs)................................................................................................................. 341seq (for IP ACLs)........................................................................................................................................................... 342permit icmp (for IPv6 ACLs)........................................................................................................................................ 344permit tcp (for IPv6 ACLs)...........................................................................................................................................346permit udp (for IPv6 ACLs)..........................................................................................................................................349seq (for IPv6 ACLs)........................................................................................................................................................351permit (for IPv6 ACLs)..................................................................................................................................................354deny arp (for Extended MAC ACLs)...........................................................................................................................355deny icmp (for Extended IPv6 ACLs)..........................................................................................................................357deny tcp (for IPv6 ACLs)..............................................................................................................................................359deny udp (for Extended IP ACLs)................................................................................................................................362deny (for IPv6 ACLs).................................................................................................................................................... 363

    7 Bidirectional Forwarding Detection (BFD)..................................................................................................366bfd all-neighbors............................................................................................................................................................ 366bfd disable.......................................................................................................................................................................368bfd enable (Configuration)........................................................................................................................................... 369bfd enable (Interface)................................................................................................................................................... 369bfd interval .....................................................................................................................................................................370bfd protocol-liveness...................................................................................................................................................... 371ip route bfd......................................................................................................................................................................372ip ospf bfd all-neighbors................................................................................................................................................373ipv6 ospf bfd all-neighbors............................................................................................................................................374ipv6 route bfd................................................................................................................................................................. 375neighbor bfd....................................................................................................................................................................376neighbor bfd disable.......................................................................................................................................................377

    8 Contents

  • show bfd neighbors....................................................................................................................................................... 378vrrp bfd........................................................................................................................................................................... 382

    8 Border Gateway Protocol...........................................................................................................................383BGP IPv4 Commands................................................................................................................................................... 383

    address-family.......................................................................................................................................................... 383aggregate-address...................................................................................................................................................384bgp add-path............................................................................................................................................................386bgp always-compare-med...................................................................................................................................... 387bgp asnotation..........................................................................................................................................................387bgp bestpath as-path ignore..................................................................................................................................389bgp bestpath as-path multipath-relax...................................................................................................................389bgp bestpath med confed...................................................................................................................................... 390bgp bestpath med missing-as-best........................................................................................................................391bgp bestpath router-id ignore................................................................................................................................ 392bgp client-to-client reflection................................................................................................................................. 393bgp cluster-id........................................................................................................................................................... 393bgp confederation identifier................................................................................................................................... 394bgp confederation peers.........................................................................................................................................396bgp dampening.........................................................................................................................................................397bgp default local-preference.................................................................................................................................. 398bgp dmzlink-bw....................................................................................................................................................... 399bgp enforce-first-as................................................................................................................................................ 400bgp fast-external-fallover........................................................................................................................................ 401bgp four-octet-as-support..................................................................................................................................... 402bgp graceful-restart................................................................................................................................................ 403bgp non-deterministic-med....................................................................................................................................404bgp outbound-optimization....................................................................................................................................405bgp recursive-bgp-next-hop.................................................................................................................................. 405bgp regex-eval-optz-disable...................................................................................................................................406bgp router-id.............................................................................................................................................................408clear ip bgp............................................................................................................................................................... 409clear ip bgp dampening............................................................................................................................................410clear ip bgp flap-statistics........................................................................................................................................ 411clear ip bgp peer-group............................................................................................................................................413debug ip bgp..............................................................................................................................................................414debug ip bgp dampening......................................................................................................................................... 415debug ip bgp events.................................................................................................................................................416debug ip bgp keepalives...........................................................................................................................................418debug ip bgp notifications....................................................................................................................................... 419debug ip bgp soft-reconfiguration.........................................................................................................................420debug ip bgp updates...............................................................................................................................................421default-metric...........................................................................................................................................................422deny bandwidth........................................................................................................................................................423description................................................................................................................................................................ 424maximum-paths....................................................................................................................................................... 425

    Contents 9

  • neighbor activate..................................................................................................................................................... 426neighbor add-path................................................................................................................................................... 427neighbor advertisement-interval............................................................................................................................428neighbor advertisement-start................................................................................................................................ 429neighbor allowas-in..................................................................................................................................................430neighbor default-originate....................................................................................................................................... 431neighbor description................................................................................................................................................432neighbor distribute-list............................................................................................................................................ 433neighbor ebgp-multihop..........................................................................................................................................434neighbor fall-over.....................................................................................................................................................435neighbor local-as......................................................................................................................................................436neighbor maximum-prefix....................................................................................................................................... 437neighbor password.................................................................................................................................................. 438neighbor peer-group (assigning peers).................................................................................................................440neighbor peer-group (creating group)................................................................................................................... 441neighbor peer-group passive..................................................................................................................................442neighbor remote-as................................................................................................................................................. 443neighbor remove-private-as................................................................................................................................... 444neighbor route-map.................................................................................................................................................445neighbor route-reflector-client............................................................................................................................... 447neighbor send-community......................................................................................................................................448neighbor shutdown..................................................................................................................................................449neighbor soft-reconfiguration inbound................................................................................................................. 450neighbor timers.........................................................................................................................................................451neighbor timers extended.......................................................................................................................................452neighbor update-source..........................................................................................................................................453neighbor weight....................................................................................................................................................... 454network.....................................................................................................................................................................455network backdoor....................................................................................................................................................457permit bandwidth.................................................................................................................................................... 458redistribute................................................................................................................................................................458redistribute ospf.......................................................................................................................................................460router bgp..................................................................................................................................................................461shutdown all............................................................................................................................................................. 462shutdown address-family-ipv4–multicast.............................................................................................................462shutdown address-family-ipv4–unicast................................................................................................................ 463shutdown address-family-ipv6–unicast................................................................................................................463set extcommunity bandwidth.................................................................................................................................464show capture bgp-pdu neighbor........................................................................................................................... 465show config.............................................................................................................................................................. 466show ip bgp.............................................................................................................................................................. 467show ip bgp cluster-list............................................................................................................................................ 471show ip bgp community.......................................................................................................................................... 472show ip bgp community-list....................................................................................................................................475show ip bgp dampened-paths................................................................................................................................477

    10 Contents

  • show ip bgp detail.................................................................................................................................................... 478show ip bgp extcommunity-list..............................................................................................................................480show ip bgp filter-list................................................................................................................................................481show ip bgp flap-statistics......................................................................................................................................483show ip bgp inconsistent-as...................................................................................................................................485show ip bgp neighbors............................................................................................................................................ 487show ip bgp next-hop............................................................................................................................................. 490show ip bgp paths.................................................................................................................................................... 491show ip bgp paths community............................................................................................................................... 493show ip bgp peer-group..........................................................................................................................................494show ip bgp regexp................................................................................................................................................. 496show ip bgp summary............................................................................................................................................. 498show running-config bgp....................................................................................................................................... 500timers bgp................................................................................................................................................................. 501timers bgp extended............................................................................................................................................... 502

    MBGP Commands.........................................................................................................................................................503debug ip bgp dampening........................................................................................................................................ 503distance bgp.............................................................................................................................................................504neighbor auto-local-address...................................................................................................................................505show ip bgp dampened-paths............................................................................................................................... 506

    9 Content Addressable Memory (CAM)........................................................................................................508cam-acl (Configuration)................................................................................................................................................508cam-acl-egress................................................................................................................................................................ 511cam-optimization............................................................................................................................................................512cam-sharing.....................................................................................................................................................................513cam-threshold.................................................................................................................................................................514feature ipv6acloptimized................................................................................................................................................514show cam-acl..................................................................................................................................................................515show cam-sharing.......................................................................................................................................................... 517show cam-usage.............................................................................................................................................................517test cam-usage...............................................................................................................................................................519Unified Forwarding Table Modes................................................................................................................................. 520

    hardware forwarding-table mode.......................................................................................................................... 520show hardware forwarding-table mode.................................................................................................................521

    10 Control Plane Policing (CoPP)................................................................................................................. 523control-plane-cpuqos.................................................................................................................................................... 523cpu-protocol-group....................................................................................................................................................... 524copp-profile.................................................................................................................................................................... 524cpu-queue.......................................................................................................................................................................525copp-policy..................................................................................................................................................................... 526protocol-list.....................................................................................................................................................................526queue-length.................................................................................................................................................................. 527service-policy rate-limit-cpu-queues...........................................................................................................................528service-policy rate-limit-protocols............................................................................................................................... 529

    Contents 11

  • show cpu-queue rate cp...............................................................................................................................................530show ip protocol-queue-mapping.................................................................................................................................531show ipv6 protocol-queue-mapping............................................................................................................................532show mac protocol-queue-mapping........................................................................................................................... 532show running-config copp-profile............................................................................................................................... 533show running-config cpu-protocol-group.................................................................................................................. 534

    11 Data Center Bridging (DCB)..................................................................................................................... 535DCB Command.............................................................................................................................................................. 535

    dcb-enable................................................................................................................................................................536PFC Commands.............................................................................................................................................................536

    clear hardware pfc-nodrop-priority........................................................................................................................537clear pfc counters.................................................................................................................................................... 537pfc-asymmetric........................................................................................................................................................538pfc-nodrop-priority l2-dlf drop............................................................................................................................... 538pfc no-drop queues................................................................................................................................................. 539pfc priority................................................................................................................................................................ 540show dcb................................................................................................................................................................... 541show hardware pfc-nodrop-priority...................................................................................................................... 542show interface pfc...................................................................................................................................................542show interface pfc statistics.................................................................................................................................. 545

    ETS Commands............................................................................................................................................................. 547dcb-enable................................................................................................................................................................547clear ets counters.................................................................................................................................................... 548show interface ets................................................................................................................................................... 548

    DCBX Commands......................................................................................................................................................... 550advertise dcbx-tlv....................................................................................................................................................550dcbx port-role........................................................................................................................................................... 551dcbx version............................................................................................................................................................. 552debug dcbx...............................................................................................................................................................553fcoe priority-bits...................................................................................................................................................... 554iscsi priority-bits.......................................................................................................................................................555show interface dcbx detail..................................................................................................................................... 555

    dcb-map......................................................................................................................................................................... 558priority-pgid....................................................................................................................................................................559priority-group bandwidth pfc....................................................................................................................................... 560dcb-map stack-unit all stack-ports all..........................................................................................................................561dcb pfc-shared-buffer-size........................................................................................................................................... 561dcb pfc-headroom-buffer-size.....................................................................................................................................562dcb-buffer-threshold ....................................................................................................................................................563priority.............................................................................................................................................................................564dcb-policy buffer-threshold (Interface Configuration)..............................................................................................565dcb pfc-total-buffer-size.............................................................................................................................................. 566show running-config dcb-buffer-threshold................................................................................................................ 567dcb pfc-queues..............................................................................................................................................................569dcb {ets | pfc} enable....................................................................................................................................................569

    12 Contents

  • 12 Debugging and Diagnostics....................................................................................................................... 571Diagnostics and Monitoring Commands......................................................................................................................571

    logging coredump stack-unit...................................................................................................................................571Offline Diagnostic Commands...................................................................................................................................... 572

    diag stack-unit..........................................................................................................................................................572offline stack-unit...................................................................................................................................................... 573online stack-unit....................................................................................................................................................... 574

    Hardware Commands....................................................................................................................................................575clear hardware stack-unit....................................................................................................................................... 575clear hardware system-flow................................................................................................................................... 576clear hardware vlan-counters................................................................................................................................. 577hardware watchdog.................................................................................................................................................578show hardware mac................................................................................................................................................ 578show hardware ip.....................................................................................................................................................579show hardware stack-unit...................................................................................................................................... 580show hardware stack-unit buffer...........................................................................................................................586show hardware buffer headroom-pool..................................................................................................................588show hardware buffer service-pool.......................................................................................................................589show hardware buffer-stats-snapshot................................................................................................................. 590show hardware counters interface .......................................................................................................................593show hardware drops..............................................................................................................................................595show hardware system-flow.................................................................................................................................. 598show hardware vlan-counters................................................................................................................................599show hardware stack-unit buffer-stats-snapshot ..............................................................................................600show hardware stack-unit buffer-stats-snapshot (Total Buffer Information).................................................. 601

    13 Dynamic Host Configuration Protocol (DHCP).........................................................................................603Commands to Configure the System to be a DHCP Server....................................................................................603

    clear ip dhcp............................................................................................................................................................. 603debug ip dhcp server.............................................................................................................................................. 604debug ipv6 dhcp .....................................................................................................................................................605default-router...........................................................................................................................................................605disable....................................................................................................................................................................... 606dns-server.................................................................................................................................................................607domain-name........................................................................................................................................................... 608excluded-address.....................................................................................................................................................609hardware-address.....................................................................................................................................................610host............................................................................................................................................................................ 610lease............................................................................................................................................................................ 611netbios-name-server................................................................................................................................................612netbios-node-type....................................................................................................................................................613network......................................................................................................................................................................614pool.............................................................................................................................................................................615show ip dhcp binding............................................................................................................................................... 616show ip dhcp configuration.....................................................................................................................................616

    Contents 13

  • show ip dhcp conflict............................................................................................................................................... 617show ip dhcp server.................................................................................................................................................618

    Commands to Configure Secure DHCP...................................................................................................................... 619arp inspection............................................................................................................................................................619arp inspection-trust.................................................................................................................................................620clear ip dhcp snooping............................................................................................................................................. 621clear ipv6 dhcp snooping binding.......................................................................................................................... 622ip dhcp relay............................................................................................................................................................. 623ip dhcp snooping......................................................................................................................................................624ipv6 dhcp snooping................................................................................................................................................. 625ipv6 dhcp snooping vlan......................................................................................................................................... 625ip dhcp snooping binding........................................................................................................................................ 626IPv6 DHCP Snooping Binding................................................................................................................................ 627ip dhcp snooping database.....................................................................................................................................629ipv6 dhcp snooping database write-delay............................................................................................................ 629ip dhcp snooping database renew......................................................................................................................... 630ipv6 dhcp snooping database renew......................................................................................................................631ip dhcp snooping trust............................................................................................................................................. 631ipv6 dhcp snooping trust........................................................................................................................................632ip dhcp source-address-validation.........................................................................................................................633ip dhcp relay information-option............................................................................................................................ 634ip dhcp snooping verify mac-address................................................................................................................... 635ipv6 dhcp snooping verify mac-address...............................................................................................................636ip helper-address..................................................................................................................................................... 636ipv6 helper-address................................................................................................................................................. 637show ip dhcp snooping........................................................................................................................................... 638show ipv6 dhcp snooping........................................................................................................................................641

    Commands to Configure DNS ..................................................................................................................................... 641ip name-server..........................................................................................................................................................641ip domain-name....................................................................................................................................................... 642ip domain-list............................................................................................................................................................ 643ip host........................................................................................................................................................................644clear host.................................................................................................................................................................. 645

    14 Equal Cost Multi-Path (ECMP)................................................................................................................ 647ecmp-group.................................................................................................................................................................... 647hash-algorithm...........................................................................................................................................................