Ports show suspended(no LACP PDUs) after switch upgrade or reboot
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- Category:
- metrocluster
- Specialty:
- MetroCluster
- Last Updated:
- 11/4/2024, 3:14:47 PM
Applies to
- MetroCluster IP
- ONTAP 9
- N3K-C3232C MetroCluster switches
- CLUSTER NETWORK DEGRADED
- Non-MetroCluster can be effected.
Issue
- After rebooting cluster switch, some of the interfaces in port-channels are in a suspended state
Example:
`show interface brief`
...
--------------------------------------------------------------------------------
Ethernet VLAN Type Mode Status Reason Speed Port
Interface Ch #
--------------------------------------------------------------------------------
...
Eth1/15 1 eth trunk down suspended(no LACP PDUs) 100G(D) 10
Eth1/16 1 eth trunk down suspended(no LACP PDUs) 100G(D) 10
- If you reboot multiple switches and encounter this error, you may encounter experience cluster network degredation
Example:
Thu Dec 02 12:12:29 +0100 [NodeA-01: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: Large MTU Packet Loss - Ping failures detected between NodeA-01_cluster2 ( 1.2.3.4 ) on PCMSTG201 and NodeA-02_cluster1 ( 1.2.3.4 ) on NodeA-02
- If the ISL port of the switch is affected, the following alert is reported in the event logs:
[Node-01: cshmd: hm.alert.raised:alert]: Alert Id = ClusterIfIslDownWarn_Alert , Alerting Resource = Cluster-sw2(FOXXXXXXXXX)/Ethernet1/43 raised by monitor ethernet-switch
[Node-01: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process cshm: ClusterIfIslDownWarn_Alert[Cluster-sw2(FOXXXXXXXXX)/Ethernet1/43].
