XGS-5240-Series User Manual

Configuration Guide of XGS-5240-Series
65-7
Configuration procedure is as follows:
Switch(config)#monitor session 4 destination interface ethernet 1/0/1
Switch(config)#monitor session 4 source interface ethernet 1/0/7 rx
Switch(config)#monitor session 4 source interface ethernet 1/0/9 tx
Switch(config)#monitor session 4 source cpu
Switch(config)#access-list 120 permit tcp 1.2.3.4 0.0.0.255 5.6.7.8 0.0.0.255
Switch(config)#monitor session 4 source interface ethernet 1/0/15 access-list 120 rx
65.4 Device Mirror Troubleshooting
If problems occur on configuring port mirroring, please check the following first for
causes:
 Whether the mirror destination port is a member of a TRUNK group or not, if yes,
modify the TRUNK group.
 If the throughput of mirror destination port is smaller than the total throughput of
mirror source port(s), the destination port will not be able to duplicate all source
port traffic; please decrease the number of source ports, duplicate traffic for one
direction only or choose a port with greater throughput as the destination port. Mi
rror destination port can not be pulled into Isolate vlan, or will affect mirror betwe
en VLAN.
 When sending unknown unicast, broadcast and multicast data, it is recommended
to set only one session for egress mirror.