SwitchIslIfDownWarn_Alert received for MCC IP
Applies to
- MetroCluster IP
- Cisco Switch
- ISL Port
Issue
- Receive the following alert in the EMS log
[Node01: cshmd: hm.alert.raised:alert]: Alert Id = SwitchIslIfDownWarn_Alert , Alerting Resource = MCCSwitch01(XXXXXXXXXXX)/Ethernet1/16 raised by monitor ethernet-switch- Health alert is generated
Node: Node01
Alert ID: SwitchIslIfDownWarn_Alert
Resource: Ethernet1/16
Severity: Major
Indication Time: Fri Mar 21 00:40:36 2025
Suppress: false
Acknowledge: false
Probable Cause: The cable attached to the ISL port
"MCCSwitch01(XXXXXXXXXXX)/Ethernet1/16" with the
description of "MetroCluster ISL Port native speed"
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 logs show the port with link not connected
--------------------------------------------------------------------------------
Port VRF Status IP Address Speed MTU
--------------------------------------------------------------------------------
mgmt0 -- up 10.89.216.198 1000 1500
--------------------------------------------------------------------------------
Ethernet VLAN Type Mode Status Reason Speed Port
Interface Ch #
--------------------------------------------------------------------------------
Eth1/15 1 eth trunk up none 100G(D) 10
Eth1/16 1 eth trunk down Link not connected auto(D) 10
Eth1/17 1 eth trunk down XCVR not inserted auto(D) 10