MIRROR PORT COMMANDS

Default Setting

No mirror session is defined. When enabled, the default mirroring is for both received and transmitted packets.

Command Mode

Interface Configuration (Ethernet, destination port)

Command Usage

You can mirror traffic from any source port to a destination port for real-time analysis. You can then attach a logic analyzer or RMON probe to the destination port and study the traffic crossing the source port in a completely unobtrusive manner.

The destination port is set by specifying an Ethernet interface.

The mirror port and monitor port speeds must match, otherwise traffic may be dropped from the monitor port.

You can create multiple mirror sessions, but all must share the same destination port. However, you should avoid sending too much traffic to the destination port from multiple source ports.

Example

The following example configures the switch to mirror all packets from port 6 to port 11:

Console(config)#interface ethernet 1/11

Console(config-if)#port monitor ethernet 1/6 both

Console(config-if)#

show port monitor

Use this command to display mirror information.

Syntax

show port monitor [interface]

interface - ethernet unit/port (source port)

unit - Switch (unit 1).

port - Port number.

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SMC Networks 10/100 manual 149, Syntax Show port monitor interface