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...

PeerA (2.10.8 non-MR)PeerB (2.12.4 MR)
Code Block
#> lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: o2ib
      local NI(s):
        - nid: 192.168.1.123@o2ib
          status: up
          interfaces:
              0: ib0
    - net type: o2ib4
      local NI(s):
        - nid: 192.168.1.123@o2ib4
          status: up
          interfaces:
              0: ib0
Code Block
#> lnetctl net show
net:
    - net type: lo
      local NI(s):
        - nid: 0@lo
          status: up
    - net type: o2ib4
      local NI(s):
        - nid: 192.168.1.105@o2ib4
          status: up
          interfaces:
              0: ib0

...

Note that in "problem" scenario, PeerA's  primary NID is on o2ib net, which is not accessible from PeerB

Resolution

Port of

Jira
serverWhamcloud Community Jira
serverId8bba2dd1-4333-3006-bfcd-f35d4ebbd2ad
keyLU-11641
resolves the issue.

References

Jira
serverWhamcloud Community Jira
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId8bba2dd1-4333-3006-bfcd-f35d4ebbd2ad
keyDDN-1228
,
Jira
serverWhamcloud Community Jira
columnskey,summary,type,created,updated,due,assignee,reporter,priority,status,resolution
serverId8bba2dd1-4333-3006-bfcd-f35d4ebbd2ad
keyLU-13548