Peer ip mismatch between clag peers

I am experiencing something odd on 5.4 with MLAG. We have other switches in MLAG on 4.3 and even 3.7 ( don’t judge ) and in 5.4 I am seeing the message in the subject on the peer-ip when checking for consistency issues. I DO NOT see this error when checking issues on leaf3-1 only on leaf3-2 but as you can see the config matches (see second image).

Interesting issue. Let me ping an MLAG developer to see if they might have any insights.

Can you please share clagctl output. Do you see the bonds in protodown state?

1 Like

I have the same issue. Did you resolve the problem?

cumulus@k08r01:mgmt:~$  nv show mlag consistency-checker
Global Consistency-checker
=============================
    Parameter               LocalValue                 PeerValue                  Conflict                             Summary
    ----------------------  -------------------------  -------------------------  -----------------------------------  -------
    anycast-ip              10.10.10.24                10.10.10.24                -                          
    bridge-priority         32768                      32768                      -                          
    bridge-stp-mode         rstp                       rstp                       -                          
    bridge-stp-state        on                         on                         -                          
    bridge-type             vlan-aware                 vlan-aware                 -                          
    clag-pkg-version        1.6.0-cl5.7.0u8            1.6.0-cl5.7.0u8            -                          
    clag-protocol-version   1.7.0                      1.7.0                      -                          
    peer-ip                 fe80::9e05:91ff:fe4a:801c  fe80::9e05:91ff:fe4a:801c  peer ip mismatch between clag peers
    peerlink-bridge-member  Yes                        Yes                        -                          
    peerlink-mtu            9216                       9216                       -                          
    peerlink-native-vlan    1                          1                          -                          
    peerlink-vlans          1, 1320->1322, 1324, 1326  1, 1320->1322, 1324, 1326  -                          
    redirect2-enable        yes                        yes                        -                          
    system-mac              44:38:39:ff:00:18          44:38:39:ff:00:18 

cumulus@k08r02:mgmt:~$ nv show mlag consistency-checker
Global Consistency-checker
=============================
    Parameter               LocalValue                 PeerValue                  Conflict                             Summary
    ----------------------  -------------------------  -------------------------  -----------------------------------  -------
    anycast-ip              10.10.10.24                10.10.10.24                -                          
    bridge-priority         32768                      32768                      -                          
    bridge-stp-mode         rstp                       rstp                       -                          
    bridge-stp-state        on                         on                         -                          
    bridge-type             vlan-aware                 vlan-aware                 -                          
    clag-pkg-version        1.6.0-cl5.7.0u8            1.6.0-cl5.7.0u8            -                          
    clag-protocol-version   1.7.0                      1.7.0                      -                          
    peer-ip                 fe80::9e05:91ff:fe4a:821c  fe80::9e05:91ff:fe4a:821c  peer ip mismatch between clag peers
    peerlink-bridge-member  Yes                        Yes                        -                          
    peerlink-mtu            9216                       9216                       -                          
    peerlink-native-vlan    1                          1                          -                          
    peerlink-vlans          1, 1320->1322, 1324, 1326  1, 1320->1322, 1324, 1326  -                          
    redirect2-enable        yes                        yes                        -                          
    system-mac              44:38:39:ff:00:18          44:38:39:ff:00:18


clactl:

cumulus@k08r01:mgmt:~$ clagctl
The peer is alive
     Our Priority, ID, and Role: 1000 9c:05:91:4a:80:1c secondary
    Peer Priority, ID, and Role: 1000 9c:05:91:4a:80:1c secondary
          Peer Interface and IP: peerlink.4094 fe80::9e05:91ff:fe4a:801c (linklocal)
               VxLAN Anycast IP: 10.10.10.24
                      Backup IP: 10.132.10.211 (inactive: self)
                     System MAC: 44:38:39:ff:00:18

Global Inconsistencies
Consistency Params            Conflicts
----------------------        ------------------
               peer-ip        peer ip mismatch between clag peers

CLAG Interfaces
Our Interface      Peer Interface     CLAG Id   Conflicts              Proto-Down Reason
----------------   ----------------   -------   --------------------   -----------------
          bond25   -                  25        -                      peer-ip-mismatch
         vxlan48   -                  -         -                      vxlan-single,peer-ip-mismatch


cumulus@k08r02:mgmt:~$ clagctl
The peer is alive
     Our Priority, ID, and Role: 2000 9c:05:91:4a:82:1c secondary
    Peer Priority, ID, and Role: 2000 9c:05:91:4a:82:1c secondary
          Peer Interface and IP: peerlink.4094 fe80::9e05:91ff:fe4a:821c (linklocal)
               VxLAN Anycast IP: 10.10.10.24
                      Backup IP: 10.132.10.212 (inactive: self)
                     System MAC: 44:38:39:ff:00:18

Global Inconsistencies
Consistency Params            Conflicts
----------------------        ------------------
               peer-ip        peer ip mismatch between clag peers

CLAG Interfaces
Our Interface      Peer Interface     CLAG Id   Conflicts              Proto-Down Reason
----------------   ----------------   -------   --------------------   -----------------
          bond25   -                  25        -                      peer-ip-mismatch
         vxlan48   -                  -         -                      peer-ip-mismatch

I can ping remote peer using ipv4 and ipv6 address.

Workaround: do not use linklocal on peerlink.4094.