Cabletron Systems 9032578-05 manual Configuring SmartTRUNKs, Creating a SmartTRUNK

Chapter 4: SmartTRUNK Configuration Guide

Configuring SmartTRUNKs

To create a SmartTRUNK:

1.Create a SmartTRUNK and specify a control protocol for it.

2.Add physical ports to the SmartTRUNK.

3.Specify the policy for distributing traffic across SmartTRUNK ports. This step is optional; by default, the SSR distributes traffic to ports in a round-robin (sequential) manner.

Creating a SmartTRUNK

When you create a SmartTRUNK, you specify if the DEC Hunt Group control protocol is to be used or no control protocol is to be used:

•If you are connecting the SmartTRUNK to another SSR, other Cabletron devices (such as the SmartSwitch 6000 or SmartSwitch 9000), or Digital GIGAswitch/Router, specify the DEC Hunt Group control protocol. The Hunt Group protocol is useful in detecting errors like transmit/receive failures, misconfiguration, etc.

•If you are connecting the SmartTRUNK to a device that does not support the DEC Hunt Group control protocol, such as those devices that support Cisco’s EtherChannel technology, specify no control protocol. Only link failures are detected in this mode.

To create a SmartTRUNK, enter the following command in Configure mode:

Create a SmartTRUNK that will be connected to a device	smarttrunk	create		<smarttrunk>
that supports the DEC Hunt Group control protocol.	protocol		huntgroup
Create a SmartTRUNK that will be connected to a device	smarttrunk	create		<smarttrunk>
that does not support the DEC Hunt Group control	protocol		no-protocol
protocol.

Add Physical Ports to the SmartTRUNK

You can add any number of ports to a SmartTRUNK. The limit is the number of ports on the SSR. Any port on any module can be part of a SmartTRUNK. If one module should go down, the remaining ports on other modules will remain operational.

Ports added to a SmartTRUNK must:

•Be set to full duplex.

•Be in the same VLAN.

•Have the same properties (L2 aging, STP state, and so on).

36 SmartSwitch Router User Reference Manual