Chapter 4: SmartTRUNK Configuration Guide36 SmartSwitch Router User Reference ManualConfiguring SmartTRUNKsTo 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 isoptional; by default, the SSR distributes traffic to ports in a round-robin (sequential)manner.Creating a SmartTRUNKWhen you create a SmartTRUNK, you specify if the DEC Hunt Group control protocol isto be used or no control protocol is to be used:• If you are connecting the SmartTRUNK to another SSR, other Cabletron devices (suchas the SmartSwitch 6000 or SmartSwitch 9000), or Digital GIGAswitch/Router, specifythe DEC Hunt Group control protocol. The Hunt Group protocol is useful in detectingerrors like transmit/receive failures, misconfiguration, etc.• If you are connecting the SmartTRUNK to a device that does not support the DEC HuntGroup control protocol, such as those devices that support Cisco’s EtherChanneltechnology, specify no control protocol. Only link failures are detected in this mode.To create a SmartTRUNK, enter the following command in Configure mode:Add Physical Ports to the SmartTRUNKYou can add any number of ports to a SmartTRUNK. The limit is the number of ports onthe SSR. Any port on any module can be part of a SmartTRUNK. If one module should godown, 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).Create a SmartTRUNK that will be connected to a devicethat supports the DEC Hunt Group control protocol.smarttrunk create <smarttrunk>protocol huntgroupCreate a SmartTRUNK that will be connected to a devicethat does not support the DEC Hunt Group controlprotocol.smarttrunk create <smarttrunk>protocol no-protocol
