Nortel Networks 1000ASE-XD Port mirroring, Additional tips about the MultiLink Trunking feature

Chapter 2 Network configuration 85

Additional tips about the MultiLink Trunking feature

When you create a MultiLink Trunk, the individual trunk members (the specific ports that make up the trunk) logically connect and react as a single entity. For example, if you change spanning tree parameters for any trunk member, the spanning tree parameters for all trunk members change.

All configured trunks are indicated in the Spanning Tree Configuration screen. The Trunk field lists the active trunks, adjacent to the port numbers that correspond to the specific trunk member for that trunk.

When a trunk is active, you can disable spanning tree participation using the Trunk Configuration screen or using the Spanning Tree Configuration screen.

When a trunk is not active, the spanning tree participation setting in the Trunk Configuration screen does not take effect until you set the Trunk Status field to Enabled.

The trunk is also viewed by management stations as a single spanning tree port. The spanning tree port is represented by the trunk member with the lowest port number. For example, if ports 13, 14, 15, and 16 are trunk members of trunk T1, the management station views trunk T1 as spanning tree port 13.

For more information about using the MultiLink Trunking feature, see “MultiLink Trunk Configuration Menu screen” on page 133.

See also Appendix C, “Quick configuration for MultiLink Trunking,” on page 193 for a configuration flowchart that can help you use this feature.

Port mirroring

You can designate one of your switch ports to monitor ingress traffic on a single specified switch port (port-based).

Note: A probe device, such as Nortel Networks StackProbe, must be connected to the designated monitor port to use this feature (contact your Nortel Networks sales agent for details about the StackProbe).

Using the BayStack 420 10/100/1000 Switch