SMC Networks SMC8150L2 manual Port monitor, Mirror Port Commands Function Mode

Mirror Port Commands 4

Mirror Port Commands

This section describes how to mirror traffic from a source port to a target port.

Table 4-44 Mirror Port Commands

Command	Function	Mode	Page
port monitor	Configures a mirror session	IC	4-127
show port monitor	Shows the configuration for a mirror port	PE	4-128

port monitor

This command configures a mirror session. Use the no form to clear a mirror session.

Syntax

port monitor interface [rx tx] no port monitor interface

•interface - ethernet unit/port (source port)

-unit - Stack unit. (Always unit 1)

-port - Port number. (Range: 1-26/50)

•rx - Mirror received packets.

•tx - Mirror transmitted packets.

Default Setting

No mirror session is defined.

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 should match, otherwise traffic may be dropped from the monitor port.

•All mirror sessions must share the same destination port.

•When mirroring port traffic, the target port must be included in the same VLAN as the source port

4-127