FTOS Configuration Guide for the C-Series - Force10 Networks

Creating a LAG
To create a dynamic port channel (LAG), define the LAG and then the LAG interfaces. Use the interface
port-channel and switchport commands, as shown in Figure 118, which uses the example of LAG 32:
Figure 118 Placing a LAG into the Default VLAN
Force10(conf)#interface port-channel 32
Force10(conf-if-po-32)#no shutdown
Force10(conf-if-po-32)#switchport
The LAG is in the default VLAN. To place the LAG into a non-default VLAN, use the tagged command
on the LAG (Figure 119):
Figure 119 Placing a LAG into a Non-default VLAN
Force10(conf)#interface vlan 10
Force10(conf-if-vl-10)#tagged port-channel 32
Configuring the LAG interfaces as dynamic
After creating a LAG, configure the dynamic LAG interfaces. Figure 120 shows ports 3/15, 3/16, 4/15, and
4/16 added to LAG 32 in LACP mode with the command port-channel-protocol lacp.
Figure 120 Creating a Dynamic LAG Example
Force10(conf)#interface Gigabitethernet 3/15
Force10(conf-if-gi-3/15)#no shutdown
Force10(conf-if-gi-3/15)#port-channel-protocol lacp
Force10(conf-if-gi-3/15-lacp)#port-channel 32 mode active
...
Force10(conf)#interface Gigabitethernet 3/16
Force10(conf-if-gi-3/16)#no shutdown
Force10(conf-if-gi-3/16)#port-channel-protocol lacp
Force10(conf-if-gi-3/16-lacp)#port-channel 32 mode active
...
Force10(conf)#interface Gigabitethernet 4/15
Force10(conf-if-gi-4/15)#no shutdown
Force10(conf-if-gi-4/15)#port-channel-protocol lacp
Force10(conf-if-gi-4/15-lacp)#port-channel 32 mode active
...
Force10(conf)#interface Gigabitethernet 4/16
Force10(conf-if-gi-4/16)#no shutdown
Force10(conf-if-gi-4/16)#port-channel-protocol lacp
Force10(conf-if-gi-4/16-lacp)#port-channel 32 mode active
The port-channel 32 mode active command shown above may be successfully issued as long as there is
no existing static channel-member configuration in LAG 32.
212 Link Aggregation Control Protocol (LACP)