Resolved! N5k and 3560 E
Attached is the topology,3560E at distribution layer (Layer VLANs- Existing connection)N5k at access layer (new connection),We have a problem of network loop and packet loss.Log from 3560E switch 1: May 16 07:58:13.668: %SW_MATM-4-MACFLAP_NOTIF: Host...