CFM over xConnect Configuration
This chapter contains a complete example of CFM over xConnect configuration.
The main objective of this feature to achieve L2 resiliency using CFM over xConnect where the traffic is switched to the next available link within xConnect when CFM detects errors or link failure on the monitored link in DC platforms.
Topology
CFM over xConnect Topology
Configuration
Node-1
#configure terminal | Enter configure mode |
(config)# hostname Node-1 | Configure the hostname. |
(config)#interface po100 | Create port channel interface. |
(config-if)#switchport | Configure switchport on LAG port |
(config-if)#exit | Exit the interface level |
(config)#interface ce29 | Enter interface level |
(config-if)#channel-group 100 mode active | Add member port to the port channel interface. |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce30 | Enter interface level |
(config-if)#channel-group 100 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface po300 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG interface |
(config-if)#exit | Exit the interface level |
(config)#interface ce6/1 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce15/1 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce2/1 | Enter interface level |
(config-if)#switchport | Configure switchport |
(config)#interface ce4/1 | Enter interface level |
(config-if)#switchport | Configure switchport |
(config-if)#exit | Exit the interface level |
(config)#cross-connect xc1 | Create cross-connect by providing the name |
(config-XC)#ep1 po100 ep2 ce2/1 | Add end-points end-point1 and end-point2 |
(config-XC)#backup ep1 po300 | Add backup end-point1 |
(config-XC)#backup ep2 ce4/1 | Add backup end-point2 |
(config-XC)#exit | Exit XC mode |
(config)#ethernet cfm domain-type character-string domain-name mdnam1 level 0 mip-creation none | Create CFM domain with type as character string with level 0 and set MIP creation criteria to none. |
(config-ether-cfm)#service ma-type string ma-name test1 | Create ma type as string |
(config-ether-cfm-ma)#link-level-ma | Configure link-level-ma |
(config-ether-cfm-ma)#ethernet cfm mep down mpid 1 active true po100 | Create down MEP for local-VID on po100 |
(config-ether-cfm-ma-mep)#cc multicast state enable | Enable cc multicast |
(config-ether-cfm-ma-mep)#exit-ether-ma-mep-mode | Exit ethernet cfm ma-mep mode |
(config-ether-cfm-ma)#mep crosscheck mpid 2 | Configure crosscheck to remote MEP |
(config-ether-cfm-ma)#cc interval 10ms | Enable cc interval for 10 millisecond |
(config-ether-cfm-ma)#exit-ether-ma-mode | Exit ethernet ma mode |
(config-ether-cfm)#exit | Exit ethernet CFM mode |
(config)#ethernet cfm domain-type character-string domain-name mdnam2 level 0 mip-creation none | Create CFM domain with type as character string with level 0 and set MIP creation criteria to none. |
(config-ether-cfm)#service ma-type string ma-name test2 | Create MA type as string |
(config-ether-cfm-ma)#link-level-ma | Configure link-level-ma |
(config-ether-cfm-ma)#ethernet cfm mep down mpid 3 active true po300 | Create down MEP for local-VID on po300 |
(config-ether-cfm-ma-mep)#cc multicast state enable | Enable CC multicast |
(config-ether-cfm-ma-mep)#exit-ether-ma-mep-mode | Exit ethernet CFM MA-MEP mode |
(config-ether-cfm-ma)#mep crosscheck mpid 4 | Configure crosscheck to remote MEP |
(config-ether-cfm-ma)#cc interval 10ms | Enable CC interval for 10 millisecond |
(config-ether-cfm-ma)#exit-ether-ma-mode | Exit ethernet MA mode |
(config-ether-cfm)#exit | Exit ethernet CFM mode |
Node-2
#configure terminal | Enter configure mode |
(config)#hostname Node-2 | Configure the hostname |
(config)#interface po100 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG port |
(config-if)#exit | Exit the interface level |
(config)#interface ce23 | Enter interface level |
(config-if)#channel-group 100 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level. |
(config)#interface ce24 | Enter interface level |
(config-if)#channel-group 100 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface po300 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG interface |
(config-if)#exit | Exit the interface level |
(config)#interface ce21 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce22 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#cross-connect xc1 | Create cross-connect by providing the name |
(config-XC)#ep1 po100 ep2 po300 | Add end-points end-point1 and end-point2 |
Node-3
#configure terminal | Enter configure mode |
(config)#hostname Node-3 | Configure the hostname |
(config)#interface po300 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG port |
(config-if)#exit | Exit the interface level |
(config)#interface ce13 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level. |
(config)#interface ce14 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface po100 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG interface |
(config-if)#exit | Exit the interface level |
(config)#interface ce1/1 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce2/1 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce4/1 | Enter interface level |
(config-if)#switchport | Configure switchport |
(config)#interface ce5/1 | Enter interface level |
(config-if)#switchport | Configure switchport |
(config-if)#exit | Exit the interface level |
(config)#cross-connect xc1 | Create cross-connect by providing the name |
(config-XC)#ep1 po300 ep2 ce4/1 | Add end-points end-point1 and end-point2 |
(config-XC)#backup ep1 po100 | Add backup end-point1 |
(config-XC)#backup ep2 ce5/1 | Add backup end-point2 |
(config-XC)#exit | Exit XC mode |
(config)#ethernet cfm domain-type character-string domain-name mdnam1 level 0 mip-creation none | Create cfm domain with type as character string with level 0 and set mip creation criteria to none. |
(config-ether-cfm)#service ma-type string ma-name test1 | Create ma type as string |
(config-ether-cfm-ma)#link-level-ma | Configure link-level-ma |
(config-ether-cfm-ma)#ethernet cfm mep down mpid 2 active true po300 | Create down mep for local-vid on po100 |
(config-ether-cfm-ma-mep)#cc multicast state enable | Enable cc multicast |
(config-ether-cfm-ma-mep)#exit-ether-ma-mep-mode | Exit ethernet cfm ma-mep mode |
(config-ether-cfm-ma)#mep crosscheck mpid 1 | Configure crosscheck to remote MEP |
(config-ether-cfm-ma)#cc interval 10ms | Enable cc interval for 10 millisecond |
(config-ether-cfm-ma)#exit-ether-ma-mode | Exit ethernet ma mode |
(config-ether-cfm)#exit | Exit ethernet CFM mode |
(config)#ethernet cfm domain-type character-string domain-name mdnam2 level 0 mip-creation none | Create cfm domain with type as character string with level 0 and set mip creation criteria to none. |
(config-ether-cfm)#service ma-type string ma-name test2 | Create ma type as string |
(config-ether-cfm-ma)#link-level-ma | Configure link-level-ma |
(config-ether-cfm-ma)#ethernet cfm mep down mpid 4 active true po100 | Create down mep for local-vid on po300 |
(config-ether-cfm-ma-mep)#cc multicast state enable | Enable cc multicast |
(config-ether-cfm-ma-mep)#exit-ether-ma-mep-mode | Exit ethernet cfm ma-mep mode |
(config-ether-cfm-ma)#mep crosscheck mpid 3 | Configure crosscheck to remote MEP |
(config-ether-cfm-ma)#cc interval 10ms | Enable cc interval for 10 millisecond |
(config-ether-cfm-ma)#exit-ether-ma-mode | Exit ethernet ma mode |
(config-ether-cfm)#exit | Exit ethernet CFM mode |
Node-4
#configure terminal | Enter configure mode |
(config)#hostname Node-4 | Configure the hostname |
(config)#interface po100 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG port |
(config-if)#exit | Exit the interface level |
(config)#interface ce1/1 | Enter interface level |
(config-if)#channel-group 100 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level. |
(config)#interface ce2/1 | Enter interface level |
(config-if)#channel-group 100 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface po300 | Create port channel interface |
(config-if)#switchport | Configure switchport on LAG interface |
(config-if)#exit | Exit the interface level |
(config)#interface ce8/1 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#interface ce15/1 | Enter interface level |
(config-if)#channel-group 300 mode active | Add member port to the port channel interface |
(config-if)#lacp timeout short | Configure LACP timeout as short |
(config-if)#exit | Exit the interface level |
(config)#cross-connect xc1 | Create cross-connect by providing the name |
(config-XC)#ep1 po300 ep2 po100 | Add end-points end-point1 and end-point2 |
Validation
Node-1
#sh ethernet cfm maintenance-points local mep domain mdnam2 ma-name test2
MPID Dir Lvl VLAN CC-Stat CC-Intvl MAC-Address Def Port MD Name
--------------------------------------------------------------------------------
3 Dn 0 0 Enable 10 ms 34ef.b689.e05a T po300 mdnam2
#sh ethernet cfm maintenance-points local mep domain mdnam1 ma-name test1
MPID Dir Lvl VLAN CC-Stat CC-Intvl MAC-Address Def Port MD Name
--------------------------------------------------------------------------------
1 Dn 0 0 Enable 10 ms 34ef.b689.e020 F po100 mdnam1
#sh ethernet cfm maintenance-points remote mpid 3 domain mdnam2
MEPID RMEPID LEVEL VLAN Rx CCM RDI PEER-MAC TYPE
-------------------------------------------------------------------------------
3 4 0 0 Yes False 5cff.35b7.54b3 Configured
#sh ethernet cfm maintenance-points remote mpid 1 domain mdnam1
MEPID RMEPID LEVEL VLAN Rx CCM RDI PEER-MAC TYPE
-------------------------------------------------------------------------------
1 2 0 0 Yes False 5cff.35b7.54bb Configured
#sh ethernet cfm errors domain mdnam1
Domain Name Level Vlan MEPID Defects
--------------------------------------------------------
mdnam1 0 0 1 .....
1. defRDICCM 2. defMACstatus 3. defRemoteCCM
4. defErrorCCM 5. defXconCCM
#sh ethernet cfm errors domain mdnam2
Domain Name Level Vlan MEPID Defects
--------------------------------------------------------
mdnam2 0 0 3 .....
1. defRDICCM 2. defMACstatus 3. defRemoteCCM
4. defErrorCCM 5. defXconCCM
Node-3
#sh ethernet cfm maintenance-points local mep domain mdnam1 ma-name test1
MPID Dir Lvl VLAN CC-Stat CC-Intvl MAC-Address Def Port MD Name
--------------------------------------------------------------------------------
2 Dn 0 0 Enable 10 ms 5cff.35b7.54bb F po300 mdnam1
#sh ethernet cfm maintenance-points local mep domain mdnam2 ma-name test2
MPID Dir Lvl VLAN CC-Stat CC-Intvl MAC-Address Def Port MD Name
--------------------------------------------------------------------------------
4 Dn 0 0 Enable 10 ms 5cff.35b7.54b3 F po100 mdnam2
#sh ethernet cfm maintenance-points remote mpid 4 domain mdnam2
MEPID RMEPID LEVEL VLAN Rx CCM RDI PEER-MAC TYPE
-------------------------------------------------------------------------------
4 3 0 0 Yes False 34ef.b689.e05a Configured
#sh ethernet cfm maintenance-points remote mpid 2 domain mdnam1
MEPID RMEPID LEVEL VLAN Rx CCM RDI PEER-MAC TYPE
-------------------------------------------------------------------------------
2 1 0 0 Yes False 34ef.b689.e020 Configured
#sh ethernet cfm errors domain mdnam1
Domain Name Level Vlan MEPID Defects
--------------------------------------------------------
mdnam1 0 0 2 .....
1. defRDICCM 2. defMACstatus 3. defRemoteCCM
4. defErrorCCM 5. defXconCCM
#sh ethernet cfm errors domain mdnam2
Domain Name Level Vlan MEPID Defects
--------------------------------------------------------
mdnam2 0 0 4 .....
1. defRDICCM 2. defMACstatus 3. defRemoteCCM
4. defErrorCCM 5. defXconCCM