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InterclusterBrokenConnection Alert

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Category:
metrocluster
Specialty:
metrocluster
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Applies to

  • MetroCluster
  • ONTAP 9
  • SnapMirror peering configured

Issue

  • InterclusterBrokenConnection Alert ASUPs are being repeatedly triggered
  • cluster peer ping command errors when ran on one of the MetroCluster but the other one is fine
Example:
  • Site A (reporting 'interface_reachable')

Site-A::> cluster peer ping
Node: Site-A-01      Destination Cluster: Site-C
Destination Node IP Address       Count  TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
Site-C-07               3.2.1.36      1   54  11.096 interface_reachable
Site-C-07               3.2.1.169     1   54  10.858 interface_reachable
Site-C-08               3.2.1.37      1   54  11.553 interface_reachable
Site-C-08               3.2.1.170     1   54  10.801 interface_reachable
...
Node: Site-A-01      Destination Cluster: Site-B
Destination Node IP Address       Count  TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
Site-B-01               1.2.3.116     1   64 
                                  0.8129999999999999 interface_reachable
Site-B-01               1.2.3.180     1   64   0.315 interface_reachable
Site-B-02               1.2.3.117     1   64   0.755 interface_reachable
Site-B-02               1.2.3.181     1   64   0.338 interface_reachable

  • Site B (reporting 'unreachable')

Site-B::> cluster peer ping 
Node: Site-B-01      Destination Cluster: Site-C
Destination Node IP Address       Count  TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
Site-C-07               3.2.1.36      1   56  11.356 interface_reachable
Site-C-07               3.2.1.169     1   56  10.699 interface_reachable
Site-C-08               3.2.1.37      1   56  11.128 interface_reachable
Site-C-08               3.2.1.170     1   56   10.58 interface_reachable
...
Node: Site-B-01      Destination Cluster: Site-A
Destination Node IP Address       Count  TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
Site-A-01               1.2.3.178        1    -       - unreachable
Site-A-02               1.2.3.179        1    -       - unreachable
...
Node: Site-B-02      Destination Cluster: Site-A
Destination Node IP Address       Count  TTL RTT(ms) Status
---------------- ---------------- ----- ---- ------- -------------------------
Site-A-01               1.2.3.178        1    -       - unreachable
Site-A-02               1.2.3.179        1    -       - unreachable
...

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