SwitchIslIfDownWarn_Alert for MetroCluster Switch
Applies to
- ONTAP 9.12.1-9.13.1
- MetroCluster IP
- Cluster Network Switches
- Cluster Switch Health Monitoring (CSHM)
Issue
- A
CSHMalert can be observed in event logs
[Node-01 cshmd: hm.alert.raised:alert]: Alert Id = SwitchIslIfDownWarn_Alert , Alerting Resource = SW01(XXXXXXXXXXX)/Ethernet1/22/3 raised by monitor ethernet-switchSYSTEM-HEALTH-ALERT.XML:
Node: SW01
Alert ID: SwitchIslIfDownWarn_Alert
Resource: port-channel11
Severity: Major
Indication Time: Mon Jun 26 11:54:04 2023
Suppress: false
Acknowledge: false
Probable Cause: The cable attached to the ISL port "SW01(XXXXXXXXXXX)/port-channel11" with the description of "" might be faulty.
For the port-channel, please check each individual link.
Possible Effect: Inter- or Intra-cluster redundancy might be lost.
Corrective Actions:
1) Check whether the cable is fully inserted into the interface port on both ends.
2) Reconnect the ISL port using another cable. After reconnecting it, verify whether the link of the ISL port is up by executing the commands per the switch configuration guide or by checking whether the Link status LED is on.
- Switch firmware and RCF Files are up to date.
- The output of
show tech-Supportshows breakout cables are in place on one of the port channels of the switch:
* Ports 21-24: MetroCluster-IP ISL Ports, VLAN 10, Port Channel 11, breakout
------------------------------------------------------------------------------------------
Port-channel VLAN Type Mode Status Reason Speed Protocol
Interface
------------------------------------------------------------------------------------------
Po1 1 eth trunk up none a-100G(D) lacp
Po10 1 eth trunk up none a-40G(D) lacp
Po11 1 eth trunk down No operational members auto(D) lacp