Juniper ESCR TescoDay 2

OverviewDay #1

Maintenance and monitoring

Routing protocols

Lab

Day #2

Introduction to Juniper devices

Junos CLI System and

interface configuration

Lab

DAY #4

QoS

FHRP

Lab

DAY #3

Routing policy

Firewall filters

Lab

Interfaces show interface <interface name>

terse> show interfaces ge-1/1/3.11 terseInterface Admin Link Proto Local Remotege-1/1/3.11 up up inet 1.1.1.1./30 inet6 fe80::8271:1f00:b7f:58d1/64 mpls multiservice

extensive

Interfaces monitor interface <interface name> monitor traffic <interface name>

clear interface statistics <interface name>

PingWith rapid option – ping <ip address> rapid

> ping 139.4.13.146 rapid

PING 139.4.13.146 (139.4.13.146): 56 data bytes

!!!!!

--- 139.4.13.146 ping statistics ---

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max/stddev = 17.258/17.372/17.506/0.089 ms

count, size, source, bypass-routing

Without rapid option (Similar to Cisco verbose ping)> ping 139.4.13.146

PING 139.4.13.146 (139.4.13.146): 56 data bytes

64 bytes from 139.4.13.146: icmp_seq=0 ttl=255 time=18.067 ms

64 bytes from 139.4.13.146: icmp_seq=1 ttl=255 time=27.100 ms

64 bytes from 139.4.13.146: icmp_seq=2 ttl=255 time=17.440 ms

Chassis show chassis hardware show chassis alarms show chassis environment show version show system uptime

OSPF Link-state IGP with fast convergence and support for large

networks

OSPF adjacency phases:

Down – Init – 2way - ExStart – Exchange – Loading – Full

OSFP elects DR and BDR routers on broadcast medium like Ethernet

OSFP area types Backbone Stub area NSSA Totally Stubby area

LSA Packet Types Type 1 Type 2 Type 3 and 4 Type 5 Type 7

routing-options {

router-id 5.5.5.5;

}

[edit protocols ospf]

area 0.0.0.0 {

interface em0.0 {

interface-type p2p;

}

interface em1.0;

interface em2.0;

interface lo0.0 {

passive;

}

}

OSPF troubleshooting show ospf neighbor show ospf interface show ospf route show ospf database

BGP BGP is exterior routing protocol used to connected different

autonomous systems. iBGP and eBGP BGP configuration requires

neighbour IP address AS number of the neighbour local AS number.

BGP route selection Local preference AS Path Origin MED eBGP over iBGP Best exit from AS For eBGP prefer the current active route RID, cluster lenght, peer ID

[ edit protocols bgp]

group ibgp {

type internal;

neighbor 192.168.12.2;

neighbor 192.168.13.3;

}

group ebgp {

neighbor 192.168.14.4 {

peer-as 2;

}

}

 

[edit routing-options]

router-id 5.5.5.5;

autonomous-system 1;

BGP troubleshooting show bgp summary show bgp neighbor <neighbour IP address> show route advertising-protocol bgp <neighbour IP address> show route receive-protocol bgp <neighbour IP address>