SwitchSNMPCommunication_Alert after switch power outage
Applies to
- ONTAP 9
- Cluster switch health monitoring (CSHM)
- BES-53248
Issue
- Health Monitor Alert for a Cluster switch.
Node-01: cshmd: hm.alert.raised:alert]: Alert Id = SwitchSNMPCommunication_Alert , Alerting Resource = sw1 raised by monitor ethernet-switch
- SNMP invalid settings reported for the monitored cluster switches.
::> system switch ethernet show
Switch Type Address Model
--------------------------- ------------------ ---------------- ---------------
sw1 cluster-network 10.xx.xx.xx OTHER
Serial Number: Unknown
Is Monitored: false
Reason: Invalid SNMP Settings
Software Version: Cisco Nexus Operating System (NX-OS) Software, Version 9.3(4)
Version Source: CDP
sw2 cluster-network 10.xx.xx.xx OTHER
Serial Number: Unknown
Is Monitored: false
Reason: Invalid SNMP Settings
Software Version: Cisco Nexus Operating System (NX-OS) Software, Version 9.3(4)
Version Source: CDP
- An attempt to delete the switches from monitoring and adding back fails with the below error:
Cluster::*> system cluster-switch create -device sw1 -address 10.xx.xx.xx -snmp-version SNMPv2c -community-or-username cshm1! -model OTHER -type cluster-network -is-monitoring-enabled-admin true
Error: command failed: SNMP validation request timed out. Verify that the "-community-or-username" parameter is valid.
- SNMP walk from cluster fails with Operation timed out error as show below
Cluster::*> systemshell -node * -command "sudo /usr/bin/bsnmpwalk -n -s cshm1\!\@10.xx.xx.xx -v 2 .1.3.6.1.2.1.1.9.1.2.1"
(system node systemshell)
Node: Node-01
bsnmpwalk: Snmp dialog: Operation timed out
Node: Node-02
bsnmpwalk: Snmp dialog: Operation timed out
2 entries were acted on.
- Cluster Switch IP is reachable from mgmt network when pinging and is in the same subnet as mgmt network hence ruling out the firewall or reachability