Chapter 11
| Link Aggregation Commands
Manual Configuration Commands
– 314 –
â—† Any of the Gigabit ports on the front panel can be trunked together, including
ports of different media types.
â—† All the ports in a trunk have to be treated as a whole when moved from/to,
added or deleted from a VLAN via the specified port-channel.
â—† 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:
â—† Ports must have the same LACP system priority.
â—† Ports must have the same port admin key (Ethernet Interface).
â—† 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.
â—† 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.
â—† If a link goes down, LACP port priority is used to select the backup link.
Manual Configuration Commands
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: 1-12)
Default Setting
The current port will be added to this trunk.
Command Mode
Interface Configuration (Ethernet)
Command Usage
â—† When configuring static trunks, the switches must comply with the Cisco
EtherChannel standard.
â—† Use no channel-group to remove a port group from a trunk.
â—† Use no interface port-channel to remove a trunk from the switch.
To Next Page
Loading...
Need help?
General
