Switch is not automatically registering, and the MissingPathFromSwitchToNSM_Alert is being sent

Applies to

• AFF C400
• NS224

Issue

• switch-02 is not automatically registered, and the error MissingPathFromSwitchToNSM_Alert is displayed with the command system health alert show. 

[2024-08-19 11:55:41.622] cluster-02::> system health alert show
[2024-08-19 11:55:44.251]                Node: node-01
[2024-08-19 11:55:44.251]            Alert ID: MissingPathFromSwitchToNSM_Alert
[2024-08-19 11:55:44.251]            Resource: Shelf Module: 1.0:A
[2024-08-19 11:55:44.251]            Severity: Major
[2024-08-19 11:55:44.251]     Indication Time: Mon Aug 19 11:50:39 2024
[2024-08-19 11:55:44.251]            Suppress: false
[2024-08-19 11:55:44.251]         Acknowledge: false
[2024-08-19 11:55:44.251]      Probable Cause: Shelf 1.0 module A is connected to only one storage
[2024-08-19 11:55:44.251]                      switch.
[2024-08-19 11:55:44.251]     Possible Effect: Access to shelf 1.0 module A can be lost due to a
[2024-08-19 11:55:44.251]                      switch failure.
[2024-08-19 11:55:44.251]  Corrective Actions: Connect shelf 1.0 module A to two storage switches,
[2024-08-19 11:55:44.251]                      following the guide applicable to your shelf.

Using the command system health subsystem show, SAS-connect_Cluster becomes degraded. 

[2024-03-15 13:31:47.756] cluster-02::> system health subsystem show
[2024-03-15 13:31:50.458] Subsystem         Health
[2024-03-15 13:31:50.458] ----------------- ------------------
[2024-03-15 13:31:50.458] SAS-connect       ok
[2024-03-15 13:31:50.460] Environment       ok
[2024-03-15 13:31:50.468] Memory            ok
[2024-03-15 13:31:50.468] Service-Processor ok
[2024-03-15 13:31:50.473] Switch-Health     ok
[2024-03-15 13:31:50.479] CIFS-NDO          ok
[2024-03-15 13:31:50.479] Motherboard       ok
[2024-03-15 13:31:50.479] IO                ok
[2024-03-15 13:31:50.483] MetroCluster      ok
[2024-03-15 13:31:50.489] MetroCluster_Node ok
[2024-03-15 13:31:50.497] FHM-Switch        ok
[2024-03-15 13:31:50.497] FHM-Bridge        ok
[2024-03-15 13:31:50.502] SAS-connect_Cluster degraded

• The switch-02 is manually registered with system switch ethernet create, but since it is registered with SNMP instead of CDP.

[2024-04-08 13:35:34.430] cluster-02::*> system w switch ethernet show
[2024-04-08 13:36:41.841] Switch                     Type               Address          Model
[2024-04-08 13:36:41.845] --------------------------- ------------------ ---------------- ---------------
[2024-04-08 13:36:41.909]
[2024-04-08 13:36:41.927] switch-01(XXXXXXXXXXX) storage-network 12.345.678.90    N9K-C9336C-FX2
[2024-04-08 13:36:41.948]      Serial Number: XXXXXXXXXXX
[2024-04-08 13:36:41.948]       Is Monitored: true
[2024-04-08 13:36:41.948]             Reason: None
[2024-04-08 13:36:41.948]   Software Version: Cisco Nexus Operating System (NX-OS) Software, Version
[2024-04-08 13:36:41.958]                     10.2(6)
[2024-04-08 13:36:41.966]     Version Source: CDP/ISDP
[2024-04-08 13:36:41.966]
[2024-04-08 13:36:41.990] switch-02(XXXXXXXXXXX) storage-network 12.345.678.91   N9K-C9336C-FX2
[2024-04-08 13:36:42.002]      Serial Number: XXXXXXXXXXX
[2024-04-08 13:36:42.002]       Is Monitored: true
[2024-04-08 13:36:42.002]             Reason: None
[2024-04-08 13:36:42.002]   Software Version: Cisco Nexus Operating System (NX-OS) Software, Version
[2024-04-08 13:36:42.002]                     10.2(6)
[2024-04-08 13:36:42.002]     Version Source: SNMP

• MissingPathFromSwitchToNSM_Alert disappears after being manually registered, but the SwitchLinkDiscoveryProtocol_Alert is displayed.

[2024-04-08 13:33:30.940] cluster-02::> system health ala ert show
[2024-04-08 13:33:33.244]                Node: cluster-02-01
[2024-04-08 13:33:33.250]            Alert ID: SwitchLinkDiscoveryProtocol_Alert
[2024-04-08 13:33:33.264]            Resource: switch-02(XXXXXXXXXXX)
[2024-04-08 13:33:33.264]            Severity: Minor
[2024-04-08 13:33:33.264]     Indication Time: Mon Mar 18 15:19:40 2024
[2024-04-08 13:33:33.274]            Suppress: false
[2024-04-08 13:33:33.274]         Acknowledge: false
[2024-04-08 13:33:33.299]      Probable Cause: The ethernet switch is using an unsupported link
[2024-04-08 13:33:33.299]                      discovery protocol.
[2024-04-08 13:33:33.299]     Possible Effect: The change of the link discovery protocol on the
[2024-04-08 13:33:33.299]                      switch is not supported. The connected device will not
[2024-04-08 13:33:33.315]                      appear in link layer discovery commands.
[2024-04-08 13:33:33.315]  Corrective Actions: Revert the discovery protocol change on the switch.