Chapter 4: SmartTRUNK Configuration Guide
44 DIGITAL GIGAswitch/Router User Reference Manual
SmartTRUNKs are compatible with all GSR features, including VLANs, STP, VRRP, etc.
SmartTRUNK operation is supported over different media types and a variety of
technologies including 10/100/1000 Mbps Ethernet.
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 GSR 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 GSR or to other DIGITAL devices
(such as the DIGITAL GIGAswitch/Router), specify the DEC Hunt Group Control
Protocol. The DEC Hunt Group Control 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 that supports the DEC Hunt Group
Control Protocol.
smarttrunk create
<
smarttrunk
>
protocol huntgroup
Create a SmartTRUNK that will be connected
to a device that does not support the DEC
Hunt Group Control Protocol.
smarttrunk create
<
smarttrunk
>
protocol no-protocol