Monitoring and Analyzing Switch Operation

Traffic Mirroring

Configure the Mirroring Destination on a Remote Switch (Page B-50):IP Address and UDP Port on Source SwitchIP Address and Exit Port on Remote Switch

mirror endpoint ip < src-ip-addr > < src-udp-port > < dst-ip-addr > port < exit-port >

Enter this command on a remote switch to configure the exit port to use in a remote mirroring session. You will configure the mirroring source on the local switch in the next step.

The mirror endpoint ip command configures:

D e p r e c a t e d C o m m a n d

The unique UDP port number to be used for the mirroring session on the source switch. The recommended port range is from 7933 to 65535.

The IP address of the source switch to use in the sessionThe IP address and exit-port number on the remote (endpoint) switch

In a remote mirroring endpoint, the IP address of exit port and the remote destination switch can belong to different VLANs.

Configure the Mirroring Source on the Local Switch (Page B-52)

mirror < 1 - 4 > [name < name-str>] remote ip < src-ip> < src-udp-port> < dst-ip>

The no mirror <1 - 4> command form removes both the mirroring session and any mirroring source(s) previously assigned to the session by the following commands.

Configure Traffic-Direction Criteria to Select Traffic (Page B-57)

[no] < interface < port/trunk/mesh > vlan < vid-#>>

monitor all < in out both > mirror < 1 - 4 name-str> [< 1 - 4 name-str> ... ]

Configure ACL Criteria to Select Inbound Traffic (Page B-62)

[no] < interface < port/trunk/mesh > vlan < vid-#>> monitor ip access-group < acl-name> in

mirror < 1 - 4 name-str> [< 1 - 4 name-str> ... ]

B-48