Reviewing Port Mirroring

Use this command to display the status of port mirroring and information about any mirrors configured:

show port mirroring

Use this command and the S- and K-Series platforms to display the status of enhanced port mirroring on the device:

show port mirroring enhanced

This example shows that no port mirrors are configured on the device:

System(rw)->show port mirroring
No Port Mirrors configured.
IGMP Multicast Mirror status Disabled
Mirror Outbound Rate Limited Frames : Disabled

This example shows that a port mirror is configured between source port vtap.0.5 and ge.1.1 and that both received (Rx) and transmitted (Tx) frames will be monitored. It also shows that mirroring status is currently administratively and operationally enabled. A mirror must be administratively enabled (as described in the next section) and its source and destination ports must have an active link for operational status to be enabled.

System(rw)->show port mirroring
Port Mirroring
==============
 Source Port        = vtap.0.5
 Target Port        = ge.1.1
 Frames Mirrored    = Rx and Tx
 Admin Status       = enabled
 Operational Status = enabled
Mirror Outbound Rate Limited Frames : Disabled

This example shows how to enable ports ge.3.1 and ge.3.4 for enhanced port mirroring and to display enhanced port mirroring status for this device (S-, K-Series):

System(rw)->set port mirroring enhanced enable ge.3.1,4
System(rw)->show port mirroring enhanced
Enhanced Port Mirroring
=======================
Max Enhanced Mirror Source Ports: 4
Port         Admin Status Oper Status
------------ ------------ ------------
ge.3.1       enabled      enabled
ge.3.4       enabled      disable
System(rw)->