beautypg.com

Channel-group – LevelOne GTL-2690 User Manual

Page 531

background image

Link Aggregation Commands

28-2

28

• STP, VLAN, and IGMP settings can only be made for the entire trunk via the

specified port-channel.

Dynamically Creating a Port Channel –
Ports assigned to a common port channel must meet the following criteria:
• Ports must have the same LACP system priority.
• Ports must have the same port admin key (Ethernet Interface).
• If the port channel admin key (lacp admin key - Port Channel) is not set when

a channel group is formed (i.e., it has the null value of 0), this key is set to the
same value as the port admin key (lacp admin key - Ethernet Interface) used
by the interfaces that joined the group.

• However, if the port channel admin key is set, then the port admin key must

be set to the same value for a port to be allowed to join a channel group.

• If a link goes down, LACP port priority is used to select the backup link.

channel-group

This command adds a port to a trunk. Use the no form to remove a port from a trunk.

Syntax

channel-group channel-id
no channel-group

channel-id - Trunk index (Range: 1-32)

Default Setting

The current port will be added to this trunk.

Command Mode

Interface Configuration (Ethernet)

Command Usage

• When configuring static trunks, the switches must comply with the Cisco

EtherChannel standard.

• Use no channel-group to remove a port group from a trunk.
• Use no interfaces port-channel to remove a trunk from the switch.

Example
The following example creates trunk 1 and then adds port 11:

Console(config)#interface port-channel 1
Console(config-if)#exit
Console(config)#interface ethernet 1/11
Console(config-if)#channel-group 1
Console(config-if)#