ClusterSwitchConnectionDegraded_Alert seen due to missing redundant switch entry

• ONTAP 9
• Event Messaging System (EMS)
• Cluster Switches

• EMS reports "ClusterSwitchConnectionDegraded_Alert"

Fri Dec 20 19:11:41 +0100 [CLUSTER-01: cshmd: hm.alert.raised:alert]: Alert Id = ClusterSwitchConnectionDegraded_Alert , Alerting Resource = CLUSTER-01 raised by monitor ethernet-switch

• And the same alert can be seen in system health alert

 Cluster::*> system health alert show
Node: node
Alert ID: ClusterSwitchConnectionDegraded_Alert
Resource: node
Severity: Major
Indication Time: Thu Mar 06 15:03:16 2025
Suppress: false
Acknowledge: false
Probable Cause: Only one cluster switch,
"switch", has been discovered
to be connected to the cluster ports of node
"node". If a cluster connection was not
discovered, but the expected cluster switch is listed
in the output of "system switch ethernet show", it
indicates that the node is not currently receiving
discovery information about the missing switches.

• However from device-discovery we could see the both the switches to be seen

Cluster::> network device-discovery show

Node/       Local  Discovered
Protocol    Port   Device                    Interface         Platform
----------- ------ ------------------------- ----------------  ----------------
Cluster-N1/cdp
            e0a    ClusterSW1(XXXXXXX)
                                             Ethernet1/10  N9K-C9336C-FX2
            e0b    ClusterSW2(YYYYYYY)
                                             Ethernet1/11  N9K-C9336C-FX2
Cluster-N1/cdp
            e0a    ClusterSW1(XXXXXXX)
                                             Ethernet1/10  N9K-C9336C-FX2
            e0b    ClusterSW2(YYYYYYY)
                                             Ethernet1/11  N9K-C9336C-FX2

• From system switch ethernet show we could see the entry for only one switch 

Cluster::*> system switch ethernet show -instance

                                   Device Name: ClusterSW2
                                    IP Address: 192.xx.x.9
                                  SNMP Version: SNMPv2c
                                 Is Discovered: true
           Community String or SNMPv3 Username: cshm1!
                                  Model Number: N9K-C9336C-FX2
                                Switch Network: cluster-network
                              Software Version: Cisco Nexus Operating System (NX-OS) Software, Version 10.3(4a)
                     Reason For Not Monitoring: Monitoring disabled by user
                      Source Of Switch Version: CDP/ISDP
                                Is Monitored ?: false
                   Serial Number of the Device: unknown