9-3
Cisco ONS 15454 SONET/SDH ML-Series Multilayer Ethernet Card Software Feature and Configuration Guide, R4.0
78-15224-02
Chapter 9 Configuring Link Aggregation
Understanding Link Aggregation
For information on other configuration tasks for the EtherChannel, refer to the
Cisco IOS Configuration Fundamentals Configuration Guide.
Caution The EtherChannel interface is the Layer 2/Layer 3 interface. Do not enable Layer 3 addresses on the
physical interfaces. Do not assign bridge groups on the physical interfaces because doing so creates
loops.
To assign Ethernet interfaces to the EtherChannel, perform the following procedure, beginning in global
configuration mode:
EtherChannel Configuration Example
Figure 9-1 shows an example of encapsulation over EtherChannel. The associated commands are
provided in the sections that follow the figure.
Figure 9-1 Encapsulation over EtherChannel Example
Command Purpose
Step 1
Router(config)# interface fastethernet
number
or
Router(config)# interface gigabitethernet
number
Enters one of the interface configuration modes to
configure the Fast Ethernet or Gigabit Ethernet
interface that you want to assign to the
EtherChannel. You can assign any interface on the
system to the EtherChannel, but both interfaces
must be either FEC or GEC.
Step 2
Router(config-if)# channel-group
channel-number
Assigns the Fast Ethernet or Gigabit Ethernet
interfaces to the EtherChannel. The channel
number must be the same channel number you
assigned to the EtherChannel interface.
Step 3
Router(config-if)# end
Exits to privileged EXEC mode.
Step 4
Router# copy running-config startup-config
(Optional) Saves configuration changes to
NVRAM.
ONS 15454
with ML100T-12
Fast Ethernet 0
POS 0POS 0
Fast Ethernet 0
SONET STS-N
ONS 15454
with ML100T-12
Fast Ethernet 1 Fast Ethernet 1
bridge-group 1
bridge-group 1
83234
Port-Channel
bridge-group 1
Port Channel
bridge-group 1
Switch_A
Switch_B
To Next Page
Loading...
