SnapMirror更新随机失败、并显示CSM错误：操作引用的会话不存在

• SnapMirror更新随机失败、并显示错误消息：

SnapMirror update from source volume 'SVM01:vol1' to destination volume 'svm_dst:vol2' failed with error 'Transfer failed.(Replication operation request failed from Cluster Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx, Node Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx to Cluster Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx, Node Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx due to a network error(CSM: Operation referredto a non-existent session.))'. Relationship UUID 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx'.

• IFSTAT-A 表示 Total discards 已配置集群间LIF的目标端口的高计数

RECEIVE
 Total frames:   76084m | Frames/second:   10751  | Total bytes:     101t
 Bytes/second:   14306k | Total errors:     0  | Errors/minute:     0 
 Total discards:   890k | Discards/minute:    8  | Multi/broadcast: 97874k
 Non-primary u/c:    0  | Errored frames:    0  | Unsupported Op:    0 
 CRC errors:      0  | Runt frames:      0  | Fragment:       0 
 Long frames:      0  | Jabber:        0  | Length errors:     0 
 Alignment errors:   0  | No buffer:       0  | Xon:          0 
 Xoff:         0  | Pause:         0  | Jumbo:         0 
 Noproto:        0  | Error symbol:     0  | Illegal symbol:    0 
 Bus overruns:     0  | Queue drops:      0  | LRO segments:     0 
 LRO bytes:       0  | LRO6 segments:     0  | LRO6 bytes:      0 
 Bad UDP cksum:     0  | Bad UDP6 cksum:    0  | Bad TCP cksum:     0 
 Bad TCP6 cksum:    0  | Mcast v6 solicit:   0  | Lagg errors:     70 
 Lacp errors:      0  | Lacp PDU errors:    0