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BES-53248 switch info not displayed under device-discovery

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fabric-interconnect-and-management-switches
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Applies to

  • BES-53248 network switches with EFOS 3.7.0.4 and newer
  • ONTAP 9
  • MetroCluster IP (MCCIP)

Issue

  • After EFOS upgrade to 3.7.0.4 on both BES-53248 switches, one controller in the MCCIP no longer displays cluster network switches in device-discovery show
  • Switch logs confirm that storage side ports are properly displayed under show isdp neighbors 
    *************** show isdp neighbors ***************


Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge,
                  S - Switch, H - Host, I - IGMP, r - Repeater

Device ID                Intf      Holdtime  Capability Platform         Port ID
------------------------ --------- --------- ---------- ---------------- ---------
Node-01                  0/9       150       H          AFF-A220         e0b
Node-02                  0/10      149       H          AFF-A220         e0b
Switch-01                0/55      177       R S        BES-53248        0/55
Switch-01                0/56      177       R S        BES-53248        0/56
  • Increasing checksum errors are observed under cdpd show-stats
    Cluster::*> run -node Node-01 cdpd show-stats     
    RECEIVE
 Packets:           611k | Csum Errors:       366k | Unsupported Vers:    0 
 Invalid length:      0  | Malformed:           0  | Mem alloc fails:     0 
 Missing TLVs:        0  | Cache overflow:      0  | Received Own Adv:    0 
 Other errors:        0  | Unknown TLV:         0  | Ejected entries:     0 
 Eject failed:        0  | Bad Value:           0 


TRANSMIT 
 Packets:         76375  | Xmit fails:          0  | No hostname:         0 
 Packet truncated:    0  | Truncate fails:      0  | Mem alloc fails:     0 
 Other errors:        0
  • Affected controller intermittently reports warnings such as the below for the switches 
    Thu Aug 25 13:29:06 +0200 [Node-01: client_common_RPC: csm.mismatchRemoteDevice:error]: CSM connection between source LIF 1023 and destination address xxx.xxx.xxx.xxx might not be optimal for session xxxxxxxxxxxxxxxx. The source is currently connected to - remote device and the destination is currently connected to Switch-01 remote device.
Thu Aug 25 13:29:06 +0200 [Node-01: client_common_RPC: csm.mismatchRemoteDevice:error]: CSM connection between source LIF 1024 and destination address xxx.xxx.xxx.xxx might not be optimal for session xxxxxxxxxxxxxxxx. The source is currently connected to - remote device and the destination is currently connected to Switch-02 remote device.
Thu Aug 25 13:29:06 +0200 [Node-01: client_common_RPC: csm.mismatchRemoteDevice:error]: CSM connection between source LIF 1023 and destination address xxx.xxx.xxx.xxx might not be optimal for session xxxxxxxxxxxxxxxx. The source is currently connected to - remote device and the destination is currently connected to Switch-01 remote device.
Thu Aug 25 13:29:06 +0200 [Node-01: client_common_RPC: csm.mismatchRemoteDevice:error]: CSM connection between source LIF 1024 and destination address xxx.xxx.xxx.xxx might not be optimal for session xxxxxxxxxxxxxxxx. The source is currently connected to - remote device and the destination is currently connected to Switch-02 remote device.
Thu Aug 25 13:29:06 +0200 [Node-01: client_common_RPC: csm.mismatchRemoteDevice:error]: CSM connection between source LIF 1023 and destination address xxx.xxx.xxx.xxx might not be optimal for session xxxxxxxxxxxxxxxx. The source is currently connected to - remote device and the destination is currently connected to Switch-01 remote device.
Thu Aug 25 13:29:06 +0200 [Node-01: client_common_RPC: csm.mismatchRemoteDevice:error]: CSM connection between source LIF 1024 and destination address xxx.xxx.xxx.xxx might not be optimal for session xxxxxxxxxxxxxxxx. The source is currently connected to - remote device and the destination is currently connected to Switch-02 remote device.
  • Collected packet-traces from the switches confirm that Cisco Discovery Protocol (CDP) packets are being forwarded to the storage correctly
  • Migrating the cluster LIF between nodes and then disabling and re-enabling the ports makes no difference
  • Performing a takeover and giveback between nodes doesn't help
  • Updating ONTAP to version 9.9.1P10 or 9.10P6 leads to no change
  • Physical inspection of the storage and switches confirms all ports and cables are working correctly

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