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4-CEN Fault Isolation
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CEN Fault Isolation
2
1. Checking Services using OTNM2000 GUI
2. Checking Services using Command Line
Interface (CLI)
3. Fault Isolation
Contents
3
1. Checking Services using OTNM2000 GUI
2. Checking Services using Command Line
Interface (CLI)
3. Fault Isolation
Contents
4
Checking Services using OTNM2000 GUI
1. The Task Panel
ALARM: To view the current alarms
ALARM_HIS: To view the historical alarms
PERFORMANCE: To view NE current performance (e.g.
IOP(Input Optical Power/Received) and OOP(Output Optical
Power/Transmit), Rx/Tx , NE/FAN Temperature, Laser Bias,
Voltage, Memory Utilization
PERFORMANCE_HIS: Querying Performance Code
STATUS: To view the current port Link State, Optical Module
Information, Received and Transmitted Packets.
Card Configuration: FAN Speed Configuration, Clock Config.
MASK SETTING: Alarm and Performance masking/hiding
Control Command: Loopback Testing, Card Soft Reset, Card
Switching to Main/Protection, Port Laser ON/Off,
5
Checking Services using OTNM2000 GUI
2. The Help Toolbar
Alarm and Performance Help: Views the relevant information of the alarm
and performance.
6
Checking Services using OTNM2000 GUI
ALARM
To view the current and
timestamp of alarm: Right
click at the NE and select
“Open”. Click the alarmed
card.
Click the ALARM icon found
on the Task Panel.
7
Checking Services using OTNM2000 GUI
ALARM_HIS
Users can know about the faults of
network via viewing alarm history, so
as to facilitate the fault analysis.
8
Checking Services using OTNM2000 GUI
PERFORMANCE Users can know whether the equipment or service in the network is abnormal or not
by viewing performances. Viewing performance also help the maintainers to handle
the faults in a timely manner and prevent faults.
9
Checking Services using OTNM2000 GUI
PERFORMANCE_HIS View the performance history to obtain the abnormal performance data, in order to
instruct the current routine operations.
10
Checking Services using OTNM2000 GUI
STATUS
Via viewing card status, users can
check whether the cards are
present and the software /
hardware version complies with
the planning.
11
Checking Services using OTNM2000 GUI
Card Configuration
Via card configuration, users can enable E1 ports, configure clock and time
synchronization.
12
Checking Services using OTNM2000 GUI
Control Command
Via control command, users can perform software reset, card forced switch, E1
loop testing and laser on/off of optical ports.
13
1. Checking Services using OTNM2000 GUI
2. Checking Services using Command Line
Interface (CLI)
3. Fault Isolation
Contents
14
Checking Services of Dynamic Networking
Check IS-IS, OSPF, and BGP neighbor establishment.
Check RSVP and LDP session setup.
Check whether BGP distributes direct routes.
Check VC establishment.
Check the BFD status.
Check the MPLS and VRF ILM forwarding tables.
Check services through LSP ping, VRF ping, and Internet Control
Message Protocol (ICMP) ping.
15
OSPF check command:
router#show ip os ne
Output:
OSPF process 100:
Neighbor ID Pri State Dead Time Address Interface Instance
ID Up Time
6.6.6.6 1 Full/ - 00:00:30 56.1.1.2 XGE0/6/1.31 0
01d00h00m
22.22.22.22 1 Full/DR 00:00:34 115.1.1.2 GE0/11/3.31 0
01d00h31m
Service Self-test
Perform service self-test after service configuration.
16
IS-IS check command:
router#show clns is-neighbors
Output:
Area 300:
System Id Interface State Type Priority Circuit Id Up
Time
0101.1213.6185 XGE0/3/1 Up L1 64 0101.1213.6185.03
83d05h51
0101.1213.6008 XGE0/4/1 Up L1 64 0101.1213.6186.03
12d19h58
Service Self-test
Perform service self-test after service configuration.
17
Service Self-test
Check RSVP and LDP session setup.
Command:
router#show rsvp session
Output:
Ingress RSVP:
To From State Pri Rt Style Labelin Labelout LSPName DSType UpTime
1.1.1.1 5.5.5.5 Up Yes 1 1 SE - 131587 1-5.1-1.1.1e00000f ELSP_SIG 00:01:32
1.1.1.1 5.5.5.5 Up No 1 1 SE - 131584 1-5.1-1.1.1e00000f ELSP_SIG 00:02:26
Total 2 displayed, Up 2, Down 0.
Egress RSVP:
To From State Pri Rt Style Labelin Labelout LSPName DSType UpTime
5.5.5.5 1.1.1.1 Up Yes 1 1 SE 131589 - 1-5.1-1.1.1e00000f ELSP_SIG 00:01:30
5.5.5.5 1.1.1.1 Up Yes 1 1 SE 131585 - 1-5.1-1.1.1e00000f ELSP_SIG 00:02:17
Command:
router#show ldp session
Output :
Peer IP Address IF Name My Role State KeepAlive Up Time
8.8.8.8 GE0/11/3.31Passive OPERATIONAL 60 01d00h44m
6.6.6.6 XGE0/6/1.31Passive OPERATIONAL 60 01d00h12m
22.22.22.22 GE0/11/3.31Passive OPERATIONAL 60 01d00h44m
18
Service Self-test
Check VC establishment.
Command:
router#show mpls vc-table
Output:
VC-Name VC-ID Access-Intf Network-Intf In Label Out Label Tunnel-Label Nexthop
Status Oam-Status Up-Time Y1731
1-8.1-5.1 1 GE0/7/3.32 GE0/7/1.31 8713 132364 9219 5.5.5.5
Inactive NULL 00:49:30 0
1-8.1-6.2 2 GE0/7/3.32 GE0/7/2.31 8715 132096 9223 6.6.6.6
Active Bfd-UP 00:49:30 0
1-8.1-5.3 3 GE0/7/3.33 GE0/7/1.31 8714 132365 9216 5.5.5.5
Active Bfd-UP 00:49:30 0
1-8.1-6.4 4 GE0/7/3.33 GE0/7/2.31 8718 132097 9224 6.6.6.6
Standby Bfd-UP 01d20h52m 0
Perform service self-test after service configuration.
19
Service Self-test
Check the BFD status.
Command:
router#show bfd session
Output:
Sess-Idx Remote-Disc Lower-Layer Sess-Type Sess-State UP-Time Remote-Addr
1801 1806 IPv4 Single-Hop Up 1d01h00m 45.1.1.1/32
1803 802 IPv4 Single-Hop Up 1d01h00m 115.1.1.2/32
1 1 MPLS LSP Single-Hop Up 1d00h30m 127.0.0.12/32
1804 0 IPv4 Single-Hop Down 00:00:00 56.1.1.2/32
5 2 MPLS LSP Single-Hop Up 1d00h28m 127.0.0.12/32
4 1 MPLS LSP Single-Hop Up 1d00h28m 127.0.0.12/32
7 6 MPLS VCCV Single-Hop Up 00:53:30 127.0.0.12/32
Perform service self-test after service configuration.
20
Service Self-test
Check the MPLS and forwarding tables.
Command:
router#show mpls forwarding-table
Output:
Codes: > - selected FTN, p - stale FTN, B - BGP FTN, K - CLI FTN,
L - LDP FTN, R - RSVP-TE FTN, S - SNMP FTN, I - IGP-Shortcut,
U - unknown FTN
Code FEC Tunnel-id FTN-ID Pri Nexthop Out-Label Out-Intf LSP-Type LSP-
ID Ingress-IDUp-Time
R> 1.1.1.1/32 1 1 Yes 45.1.1.1 131587 XGE0/6/4.31 1 5.5.5.5
ELSP_SIGNAL 00:25:54
R 1.1.1.1/32 1 20 No 56.1.1.2 131592 XGE0/6/1.31 2 5.5.5.5
ELSP_SIGNAL 00:07:47
R> 1.1.1.1/32 5 17 Yes 45.1.1.1 131588 XGE0/6/4.31 1 5.5.5.5
ELSP_SIGNAL 00:27:04
R> 2.2.2.2/32 2 19 Yes 56.1.1.2 131593 XGE0/6/1.31 1 5.5.5.5
ELSP_SIGNAL 01d00h31m
L> 6.6.6.6/32 0 2 Yes 56.1.1.2 132102 XGE0/6/1.31 LSP_DEFAULT
01d00h20m
Perform service self-test after service configuration.
21
Service Self-test
Command: FEC to Next Hop Label Forwarding Entry Table
router#show mpls ftn-table
Output:
Primary FTN entry with FEC: 1.1.1.1/32, id: 1, row status: Active
Owner: RSVP, Action-type: Redirect to Tunnel, Exp-bits: 0x0, Incoming DSCP: none
Tunnel id: 1, Protected LSP id: 1, QoS Resource id: 71, Description: 1-5.1-1.1.1e00000f
Select: 0
, Bfd id:2, MPLS-TP OAM Y1731 Initiative id:0, Lock:0 Cross connect ix: 290, in intf: - in
label: 0 out-segment ix: 269
Owner: RSVP, Persistent: No, Admin Status: Up, Oper Status: Up
Out-segment with ix: 269, owner: RSVP, out intf: XGE0/6/4.31, out label: 131587
Nexthop addr: 45.1.1.1 cross connect ix: 290, op code: Push
LSP Type: ELSP_SIGNAL
Class_Exp mapping:
CLASS DSCP_value EXP_value
be 000000 0
Bidirectional Forwarding Detection is configured
Bidirectional Forwarding Detection is enabled
Up Time: 00:26:05
Perform service self-test after service configuration.
22
Service Self-test
Command: MPLS Incoming Label Map
router#show mpls ilm-table
Output:
Codes: > - selected ILM, p - stale ILM, K - CLI ILM
Code In-Label Out-Label In-Intf Out-Intf Nexthop FEC ILM-ID
LSP-Type Up-Time
> 132370 8197 XGE0/6/1.31 GE0/11/3.31 115.1.1.2 22.22.22.22/32
579 LSP_DEFAULT 01d00h36m
> 132262 N/A XGE0/6/1.31 inloopback 0.0.0.0 192.168.184.0/24
747 LSP_DEFAULT 01d00h36m
> 132166 N/A XGE0/6/1.31 inloopback 0.0.0.0 192.168.88.0/24
651 LSP_DEFAULT
Perform service self-test after service configuration.
23
Service Configuration
Before using the show running command to query single-station configurations,
log in the device through the SecureCRT software.
SecureCRT-based login:
Both the username and password are root.
IP address of the
loopback interface
of the device
24
Service Configuration
The following page is displayed after successful login to the core switch card.
25
Service Configuration
Enter the following command and press Enter to log in to the control program.
Log in to the control
program.
26
Service Configuration
Enter the password (a) and run en, as shown in the following figure.
27
Service Configuration
The following describes the outputs of the show running-config command at
stations A1 and B1.
!
no service password-encryption
!
hostname A1_YZXTD
!
password a
log file rcu.log
! mpls l2-circuit YZXTD_A11-LXRJ_B1-pw-main-1X 101 222.173.0.168 control-word
mpls l2-circuit YZXTD_A11-QLGJ_B2-pw-backup-1X 102 222.173.0.167 control-
word
mpls l2-circuit YZXTD_A11-LXRJ_B1-pw-main-DO 201 222.173.0.168 control-word
mpls l2-circuit YZXTD_A11-QLGJ_B2-pw-backup-DO 202 222.173.0.167 control-
word
Username
Password
Active VC for 1X services
Standby VC for 1X services
A1
28
Service Configuration
mpls class-type ct0 default
mpls class-type ct1 A11
mpls class-type ct3 a3
mpls class-type ct4 a4
mpls class-type ct5 a5
mpls class-type ct6 a6
mpls class-type ct7 a7
mpls te-class te0 default 0
mpls te-class te1 A11 1
mpls te-class te2 A11 2
mpls te-class te3 a3 3
mpls te-class te4 a4 4
mpls te-class te5 a5 5
mpls te-class te6 a6 6
Configure BFD FOR PW
mpls te-class te7 default 7
A1
29
Service Configuration
mpls bfd l2-circuit 101 local-discriminator 101 remote-discriminator 101 min-tx 50 min-
rx 50
mpls bfd l2-circuit 102 local-discriminator 102 remote-discriminator 102 min-tx 50 min-
rx 50
mpls bfd l2-circuit 201 local-discriminator 201 remote-discriminator 201 min-tx 50 min-
rx 50
mpls bfd l2-circuit 202 local-discriminator 202 remote-discriminator 202 min-tx 50 min-
rx 50
mpls propagate-ttl
mpls vpws YZXTD_A11-LXRJ_B1-vpws-1X 101
vpws-vc YZXTD_A11-LXRJ_B1-pw-main-1X
vpws-vc YZXTD_A11-QLGJ_B2-pw-backup-1X
mpls vpws YZXTD_A11-LXRJ_B1-vpws-DO 201
vpws-vc YZXTD_A11-LXRJ_B1-pw-main-DO
vpws-vc YZXTD_A11-QLGJ_B2-pw-backup-DO
Configured BFD for PW.
Configured the VPWS.
Bound the VC to the VPWS.
A1
30
Service Configuration router ldp
router-id 3.76.1.201
explicit-null
no-php
global-merge-capability merge-capable
control-mode ordered
label-retention-mode liberal
pw-status-tlv
targeted-peer ipv4 222.173.0.168
exit-targeted-peer-mode
targeted-peer ipv4 222.173.0.167
exit-targeted-peer-mode
transport-address ipv4 3.76.1.201
hold-time 15
hello-interval 5
targeted-peer-hold-time 60
targeted-peer-hello-interval 20
keepalive-timeout 60 keepalive-interval 20
targeted-peer-hello-receipt
advertisement-mode downstream-unsolicited
mpls ldp lsp trigger host-only
Configured LDP. The IP address of the loopback
interface is configured here.
Configured the IP address for
loopback in the local station.
Quit the TAR-PEER configuration mode.
Configured the IP address of the loopback
interface for oppostation end B1.
all: LDP advertises labels for all.
host-only: LDP advertises label for hosts only.
for vc: LDP advertises labels for VCs only.
A1
31
Service Configuration
!
interface FE0/5/5
mtu-board 9600
no shutdown
switchport
physical basic oe-mode electric
commit
! interface FE0/5/5.33
description for QoS-NMS
no shutdown
switchport
uni stream-type 1
uni stream-id 1 ploy 0 assign 1
uni stream-id 1 ovlan 33
mpls-l2-circuit YZXTD_A11-LXRJ_B1-pw-main-1X ethernet
mpls-l2-circuit YZXTD_A11-QLGJ_B2-pw-backup-1X ethernet secondary
vc-mode revertive
commit
Configured the physical
interface.
Configured the subinterface of VLAN
33 in 1X services.
Enabled the interface.
Configured the interface
on the UNI side.
Bound the VC to this interface.
A1
32
Service Configuration Station A1:
!
interface FE0/5/6
mtu-board 9600
no shutdown
switchport
physical basic oe-mode electric
commit
!
interface FE0/5/6.34
description for QoS-other
no shutdown
switchport
uni stream-type 1
uni stream-id 1 ovlan 34
mpls-l2-circuit YZXTD_A11-LXRJ_B1-pw-main-DO ethernet
mpls-l2-circuit YZXTD_A11-QLGJ_B2-pw-backup-DO ethernet secondary
vc-mode revertive
commit
33
Service Configuration !
interface GE0/5/1
mtu-board 9600
no shutdown
physical advance out-limit no-shutdown
physical queue-dispatch queue-no 0 mode 1 weight 1
physical queue-dispatch queue-no 0 cir 0 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 1 mode 1 weight 1
physical queue-dispatch queue-no 1 cir 0 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 2 mode 1 weight 4
physical queue-dispatch queue-no 2 cir 100 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 3 mode 1 weight 4
physical queue-dispatch queue-no 3 cir 100 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 4 mode 0 weight 0
physical queue-dispatch queue-no 4 cir 100 pir 900 cbs 256 pbs 256
physical queue-dispatch queue-no 5 mode 1 weight 4
physical queue-dispatch queue-no 5 cir 100 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 6 mode 0 weight 0
physical queue-dispatch queue-no 6 cir 100 pir 900 cbs 256 pbs 256
label-switching
commit
Enable label switching.
A1
34
Service Configuration
!
interface GE0/5/1.31
description SD-JN-SJ-A-1.163 GE0/0/0 2.5G(S-16N0001IP)
ip address 10.1.1.5/30
no shutdown
label-switching
commit
ip ospf network point-to-point
ip ospf cost 100
enable-ldp ipv4 no-igp-sync
Configure dthe IP address of
the subinterface.
Enable OSPF on this
interface.
Enable LDP on the NNI. A1
35
Service Configuration !
interface GE0/2/1
mtu-board 9600
no shutdown
physical advance out-limit no-shutdown
physical queue-dispatch queue-no 0 mode 1 weight 1
physical queue-dispatch queue-no 0 cir 0 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 1 mode 1 weight 1
physical queue-dispatch queue-no 1 cir 0 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 2 mode 1 weight 4
physical queue-dispatch queue-no 2 cir 100 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 3 mode 1 weight 4
physical queue-dispatch queue-no 3 cir 100 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 4 mode 0 weight 0
physical queue-dispatch queue-no 4 cir 100 pir 900 cbs 256 pbs 256
physical queue-dispatch queue-no 5 mode 1 weight 4
physical queue-dispatch queue-no 5 cir 100 pir 1000 cbs 256 pbs 256
physical queue-dispatch queue-no 6 mode 0 weight 0
physical queue-dispatch queue-no 6 cir 100 pir 900 cbs 256 pbs 256
label-switching
commit
A1
36
Service Configuration
!
interface GE0/2/1.31
description SD-JN-SJ-A-1.163 GE0/0/0 2.5G(S-16N0001IP)
ip address 10.1.1.1/30
no shutdown
label-switching
commit
ip ospf network point-to-point
ip ospf cost 100
enable-ldp ipv4 no-igp-sync
!
A1
37
Service Configuration
!
router ospf 2
ospf router-id 3.76.1.201
timers spf exp 50 50000
area 0.0.0.1 stub
network 3.76.1.201/32 area 0.0.0.1
network 10.1.1.0/30 area 0.0.0.1
network 10.1.1.4/30 area 0.0.0.1
cspf disable-better-protection
!
telnet max-clients 10
line vty
exec-timeout 0 0
login
!
dhcp enable
dhcp hops threshold 16
!
end
Configured OSPF. Set the IP address of the OSPF
interface to the IP address of the
loopback interface.
Added the loopback
interface to area 1.
Added the link interface to area 1.
A1
38
CLI basic commands in total
39
CLI : show running
Screenshot below: (CLI in the red box)
View global configuration
40
CLI : show arp
Screenshot below: (CLI and Content displayed as red font)
View all ARP
41
CLI : show ip interface brief
Screenshot below: (CLI and Content displayed as red font)
View port information
42
CLI : show ip route
Screenshot below: (CLI and Content displayed as red font)
View the IGP route table
43
CLI : show rsvp session
Screenshot below: (CLI and Content displayed as red font)
View RSVP session information
44
CLI : show rsvp interface
Screenshot below: (CLI and Content displayed as red font)
View RSVP enabled interface information
45
CLI : show mpls forwarding-table
Screenshot below: (CLI and Content displayed as red font)
View all LSP initiated by this router
46
CLI : show mpls ilm-table
Screenshot below: (CLI and Content displayed as red font)
View all mpls ilm table information
47
CLI : show bfd session
Screenshot below: (CLI and Content displayed as red font)
View bfd session information
48
CLI : show bfd interface
Screenshot below: (CLI and Content displayed as red font)
View bfd enabled interface
49
CLI : show ldp session
Screenshot below: (CLI and Content displayed as red font)
View LDP session information
50
CLI : show ldp interface
Screenshot below: (CLI and Content displayed as red font)
View LDP enabled interface information
51
CLI : show mpls vc-table
Screenshot below: (CLI and Content displayed as red font)
View all VC FEC statistics
52
1. Checking Services using OTNM2000 GUI
2. Checking Services using Command Line
Interface (CLI)
3. Fault Isolation based on different scenario
Contents
53
Fault Isolation
E-CES(E1) Service
Situation : Field Operations is conducting loop testing end-to-end(RNC to end site) but they
cant see the loop provided or the data cant pass thru RNC from the Source Site.
Checking:
1. Check the slot/port of the Source Site and Destination Site if mapping is created on
Business Management View.
2. Check the NE E1K5/E101/S101/S102 Card for current alarms. If seen PPI_LOS alarm,
physical termination fault. If seen AIS alarm, possible that alarm is on far end site.
3. If no alarm seen, check the port if unshut. Go to Secure CRT, type show run int <port>
command or go to STATUS>Link State must be with “on” status.
4. If port is up, check the status of VC by running the command show mpls vc-table and
check its uptime status. If with INACTIVE status, check the status of the tunnel by running
the command show rsvp session.
5. If no result show upon running the mpls vc-table command, check the LDP session if
configured by running show ldp session.
6. If RSVP session is down, check for active fiber cut.
6. If all protocols are up, conduct loop testing with the Engineer on site.
54
Checking Services using OTNM2000 GUI
Control Command
E1 Loop Testing: Verify the configured E1 ports on Business Management .
Accessing C31 Ilagan on FH NMS:
LLB: Local Loopback = enable loop at Site A DDF
facing the BER tester(also installed in Site A)
DLB: Device Loopback = enable loop at Site A
facing the DDF of Site B(depending on the created
tunnel/trail, where BER tester is installed in Site B).
SITE A SITE B
55
Fault Isolation
E-LAN(Data Services (3G, BRO, Wimax, FD/TD-LTE)
Down Service
Checking:
1. Check the slot/port of the Source Site and Destination Site if mapping is
created on Business Management View.
2. Check the port for current alarms. If seen RLOS alarm, possible physical cable
fault. If seen LINK_LOS alarm, possible port setting problem(duplex/speed).
3. If no alarm seen, check the port if unshut. For R865, select the card, view the
STATUS>>Port Status to check for link status, received/transmit packets, current
speed/duplex mode.
4. If port is up but no packets, check the status of VC by running the command
show mpls vc-table and check its uptime status. If with INACTIVE status, check
the status of the tunnel by running the command show rsvp session.
5. If no result show upon running the mpls vc-table command, check the LDP
session if configured by running show ldp session.
6. If RSVP session is down, check for active fiber cut.
7. If no fiber cut, check for broken tunnel by running show run rsvp-path.
56
Fault Isolation
L2 services are unavailable.
1) Run show mpls vc-table to check whether the VC is normal.
Vc-name: VC name Vc-id: VC ID Access-intf: bound interface
Network-intf: network interface In label: incoming label Out label: outgoing label
Tunnel-label: label of the bound tunnel Status: status
Nexthop: IP address of the next-hop interface Up-time: establishment time
57
Fault Isolation
The VC is abnormal.
58
Fault Isolation
2) If the VC is abnormal, run show mpls forwarding-table to check the LSP
labels generated by LDP. The outgoing label is normal.
59
Fault Isolation
The outgoing label is abnormal.
60
Fault Isolation Run show mpls ilm-table to check the incoming label. The incoming label is normal.
61
Fault Isolation
The incoming label is abnormal.
62
Fault Isolation
3) If the LDP connection is abnormal, run show ip ospf neighbor to check OSPF.
Neighbor id: IP address of the peer loopback interface Pri: priority State: status
Dead time: The connection is interrupted if no Hello packet is received from the peer end within 30
seconds.
Address: IP address of the peer interface Interface: local interface
Instance id: local OSPF process ID (0 by default) Up time: establishment time
63
Fault Isolation The OSPF connection is abnormal.
64
Fault Isolation
If the OSPF connection is abnormal, ping the directly-connected interface. If the
directly-connected interface can be successfully pinged, OSPF is faulty.
65
Fault Isolation The directly-connected interface cannot be pinged.
5) If the directly-connected interface cannot be pinged, check the link state to
see whether the optical fiber is correctly connected.
66
THANK YOU