Monitoring and Analyzing Switch Operation

Traffic Mirroring

This command assigns a mirroring source to a previously configured mirroring session on a source switch. It specifies the port and/or trunk source(s) to use, the direction of traffic to mirror, and the session identifier.

The no form of the command removes a mirroring source assigned to the session, but does not remove the session itself. This enables you to repurpose a session by removing an unwanted mirroring source and adding another in its place.

interface < eth-port-list>: Identifies the port(s) or static trunk(s), on which to mirror traffic. Use a hyphen for a range of consecutive ports (d5-d8).Use a comma to separate non-contiguous interfaces (d5,d8).

monitor all < in out both >: For the interface specified by

<port-list>, selects traffic to mirror based on whether the traffic is entering or leaving the switch on the interface.

in: Mirror entering traffic.

out: Mirror exiting traffic.

both: Mirror traffic entering or exiting.

(Using monitor without mirroring criteria or session number affects session 1. Refer to “Monitor Command” on page B-46.)

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