Chapter 19: Configuring Port Mirroring

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

Source

Single

port(s)

target

 

port

Command Usage

Monitor port speed should match or exceed source port speed, otherwise traffic may be dropped from the monitor port.

All mirror sessions have to share the same destination port.

When mirroring port traffic, the target port must be included in the same VLAN as the source port when using MSTP (see “Spanning Tree Algorithm Configuration” on page 22-1).

Command Attributes

Mirror Sessions – Displays a list of current mirror sessions.

Source Unit – The unit whose port traffic will be monitored. (Range: Always 1)

Source Port – The port whose traffic will be monitored. (Range: 1-24/48)

Type – Allows you to select which traffic to mirror to the target port, Rx (receive), Tx (transmit), or Both. (Default: Rx)

Target Unit – The unit whose port will "duplicate" or "mirror" the traffic on the source port. (Range: Always 1)

Target Port – The port that will “mirror” the traffic from the source port. (Range: 1-24/48)

19-1

Page 181
Image 181
Accton Technology ES4524D, ES4548D, 24/48-Port manual Configuring Port Mirroring