SnapMirror is failing with CSM errors
Applies to
- ONTAP 9
- SnapMirror
Issue
- High SnapMirror lag-time reported
- SnapMirror is failing with the following errors
CSM: Operation referred to a non-existent session
CSM: An operation did not complete within the specified timeout window
- Packet traces reveal duplicate packets arriving on destination that the source did not send
- Switch is reporting loop errors
2022 Jul 1 12:28:45 Switch_01 %ABC-2-STM_LOOP_DETECT: Loops detected in the network for mac <> among ports Eth1/XX and Eth1/XX vlan XXX - Disabling dynamic learn notifications for 180 seconds