IBM Partner Pavilion BMD00082 manual Port Mirroring

SmartConnect User’s Guide

Port Mirroring

Port mirroring allows you to attach a sniffer to a monitoring port that is configured to receive a copy of all packets forwarded from the mirrored port. SmartConnect enables you to mirror port traffic for all Layer 2 and Layer 3 traffic, including ports involved in VSG and stacking. Port mirroring can be used as a troubleshooting tool or to enhance the security of your network. For example, you can connect an IDS server to the monitor port to detect intruders attacking the network.

Consider the following guidelines while configuring port mirroring:

„SmartConnect does not support a single port being monitored by multiple ports.

„SmartConnect cannot mirror LACPDU and self-generated flow control packets.

„Ingress and egress traffic is duplicated and sent to the monitor port after processing.

Note – Among the egress ports, only one copy of broadcast and unknown unicast packets will go to the monitor port.

To configure port mirroring:

1.At the top of the window, select a Monitor Port from the drop-down list.

2.For each port you wish to mirror:

„Select Enabled in the Mirrored drop-down list.

„Select the port mirror Direction in the drop-down list.

3.At the top of the window, select Enabled in the drop-down list.

4.Click Apply at the bottom of the window to make the changes active, and Save to retain them beyond reboot and power cycles.

BMD00082, February 2009 Chapter 9: Switch Policies „ 105