CFM Configuration Example
This section provides a configuration example for Connectivity Fault Management (CFM).
CFM Configuration Example
The following sections show the steps required to configure CFM.
Note
The following commands are not supported on all hardware platforms:
-
cfm maintenance-domain
-
cfm maintenance-association
-
vlan nodal-mip-level
Switch A
MAINTENANCE-DOMAIN CONFIGURATION cfm maintenance-domain "spbm" index 1 maintenance-level 6 MAINTENANCE-ASSOCIATION CONFIGURATION cfm maintenance-association "spbm" "2" index 1 cfm maintenance-association "spbm" "3" index 2 MAINTENANCE-ENDPOINT CONFIGURATION cfm maintenance-endpoint "spbm" "2" 1 state enable cfm maintenance-endpoint "spbm" "3" 1 state enable VLAN NODAL MEP/MIP CONFIGURATION vlan nodal-mep 2 spbm 2 1 vlan nodal-mip-level 2 6 vlan nodal-mep 3 spbm 3 1 vlan nodal-mip-level 3 6
Switch B
MAINTENANCE-DOMAIN CONFIGURATION cfm maintenance-domain spbm index 1 maintenance-level 6 MAINTENANCE-ASSOCIATION CONFIGURATION cfm maintenance-association "spbm" "2" index 1 cfm maintenance-association "spbm" "3" index 2 MAINTENANCE-ENDPOINT CONFIGURATION cfm maintenance-endpoint "spbm" "2" 2 state enable cfm maintenance-endpoint "spbm" "3" 2 state enable VLAN NODAL MEP/MIP CONFIGURATION vlan nodal-mep 2 spbm 2 2 vlan nodal-mip-level 2 6 vlan nodal-mep 3 spbm 3 2 vlan nodal-mip-level 3 6
CFM Sample Output
The following sections show sample CFM output.
L2ping can use the system ID or the router name. The following example shows a case where the VLAN and MAC are given.
show isis adjacencies
Switch:1# show isis adjacencies
=======================================================================================================
ISIS Adjacencies
=======================================================================================================
INTERFACE L STATE UPTIME PRI HOLDTIME SYSID HOST-NAME STATUS AREA AREA-NAME
-------------------------------------------------------------------------------------------------------
Port1/3 1 UP 00:37:37 127 22 0014.0dbf.a3df Switch-Lab1 ACTIVE HOME area-9.00.02
Port1/19 1 UP 1d 05:09:16 127 25 0014.0da2.b3df Switch-Lab2 BACKUP HOME area-9.00.02
-------------------------------------------------------------------------------------------------------
Home: 2 out of 2 interfaces have formed an adjacency
Remote: 0 out of 0 interfaces have formed an adjacency
-------------------------------------------------------------------------------------------------------
l2 ping with vlan
Switch:1# l2 ping vlan 500 mac 00.14.0d.bf.a3.df Please wait for l2ping to complete or press any key to abort ----00:14:0d:bf:a3:df L2 PING Statistics---- 0(68) bytes of data 1 packets transmitted, 0 packets received, 100.00% packet loss
l2 ping with vlan
Switch:1# l2 ping vlan 500 routernodename MONTI0 Please wait for l2ping to complete or press any key to abort ----00:14:0d:a2:b3:df L2 PING Statistics---- 0(68) bytes of data 1 packets transmitted, 1 packets received, 0.00% packet loss round-trip (us) min/max/ave/stdv = 26895/26895/26895.00/ 0.00
l2 traceroute with vlan
Switch:1# l2 traceroute vlan 500 routernodename MONTI0 Please wait for l2traceroute to complete or press any key to abort l2traceroute to MONTI0 (00:14:0d:a2:b3:df), vlan 500 0 PETER4 (00:15:9b:11:33:df) 1 MONTI0 (00:14:0d:a2:b3:df)
l2 tracetree with vlan
Switch:1# l2 tracetree 500 1 Please wait for l2tracetree to complete or press any key to abort l2tracetree to 53:55:10:00:00:01, vlan 500 i-sid 1 nickname 5.55.10 hops 64 1 PETER4 00:15:9b:11:33:df -> MONTI0 00:14:0d:a2:b3:df 2 MONTI0 00:14:0d:a2:b3:df -> LEE2 00:15:e8:b8:a3:df
l2 ping with IP address
You can also use L2ping and L2traceroute with an IP address. The following outputs show examples using an IP address.
Switch:1# l2 ping ip-address 192.0.2.10 Please wait for l2ping to complete or press any key to abort L2 PING Statistics : IP 192.0.2.10, paths found 1, paths attempted 1 ================================================================================ TX RX PERCENT ROUND TRIP TIME VLAN NEXT HOP PKTS PKTS LOSS MIN/MAX/AVE (us) ================================================================================ 500 SHAMIM (00:1a:8f:08:53:df) 1 0 100.00% 0/0/0.00
l2 ping with IPv6 address
Switch:1# l2 ping ip-address 49:0:0:0:0:0:0:11
Please wait for l2ping to complete or press any key to abort
L2 PING Statistics : IP 49:0:0:0:0:0:0:11, paths found 1, paths attempted 1
================================================================================
TX RX PERCENT ROUND TRIP TIME
VLAN NEXT HOP PKTS PKTS LOSS MIN/MAX/AVE (us)
================================================================================
41 SHAMIM (00:49:00:01:00:11) 1 1 0.00% 11876/11876/11876.00
l2 traceroute with IP address
Switch:1# l2 traceroute ip-address 192.0.2.10 Please wait for l2trace to complete or press any key to abort L2 Trace Statistics : IP 192.0.2.10, paths found 1 ================================================================== SHAMIM (00:1a:8f:08:53:df), vlan 500 0 PETER4 (00:15:9b:11:33:df) 1 MONTI0 (00:14:0d:a2:b3:df)
l2 traceroute with IPv6 address
Switch:1# l2 traceroute ip-address 49:0:0:0:0:0:0:11 Please wait for l2trace to complete or press any key to abort L2 Trace Statistics : IP 49:0:0:0:0:0:0:11, paths found 1 ================================================================== SHAMIM (00:49:00:01:00:11), vlan 41 0 4K-DUT7 (00:49:00:01:00:17) 1 9k-2 (00:49:00:01:00:92) 2 8K-1 (00:49:00:08:00:81) 3 4K-DUT1 (00:49:00:01:00:11)
show cfm maintenance-domain
Switch:1#show cfm maintenance-domain
================================================================================
Maintenance Domain
================================================================================
Domain Name Domain Index Level Domain Type
--------------------------------------------------------------------------------
md1 99 3 NONE
Total number of Maintenance Domain entries: 1.
show cfm maintenance-association
Switch:1#show cfm maintenance-association
================================================================================
Maintenance Association Status
================================================================================
Domain Name Assn Name Domain Idx Assn Idx
--------------------------------------------------------------------------------
md1 ma1 1 98
Total number of Maintenance Association entries: 1.
================================================================================
Maintenance Association config
================================================================================
Domain Name Assn Name
--------------------------------------------------------------------------------
md1 ma1
Total number of MA entries: 1.
show cfm maintenance-endpoint
Switch:1#show cfm maintenance-endpoint
================================================================================
Maintenance Endpoint Config
================================================================================
DOMAIN ASSOCIATION MEP ADMIN
NAME NAME ID
--------------------------------------------------------------------------------
md1 ma1 1 enable
Total number of MEP entries: 1.
================================================================================
Maintenance Endpoint Service
================================================================================
DOMAIN_NAME ASSN_NAME MEP_ID TYPE SERVICE_DESCRIPTION
--------------------------------------------------------------------------------
md1 ma1 1 unused
Total number of MEP entries: 1.
show vlan nodal-mep
Switch:1#show vlan nodal-mep
================================================================================
Vlan Nodal Mep
================================================================================
VLAN_ID DOMAIN_NAME.ASSOCIATION_NAME.MEP_ID
--------------------------------------------------------------------------------
1
2
3
4 md1.ma1.1
5
6
7
8
9
10
11
12
13
14
show vlan nodal-mip-level
Switch:1#show vlan nodal-mip-level
================================================================================
Vlan Nodal Mip Level
================================================================================
VLAN_ID NODAL_MIP_LEVEL_LIST
--------------------------------------------------------------------------------
1
2
3
4 6
5
6
7
8
9
10
11
12
13
14