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Cisco ONS 15310-CL, ONS 15310-MA, and ONS 15310-MA SDH Ethernet Card Software Feature and Configuration Guide, R9.1 and R9.2
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Chapter 10 Configuring Link Aggregation on the ML-Series Card
Configuring Link Aggregation
Each ML100-FX supports up to four FECs plus an additional POS channel, a port channel made up of
the two POS ports. A maximum of four Fast Ethernet ports can bundle into one Fast Ethernet Chan nel
(FEC) and provide bandwidth scalability up to 400-Mbps full-duplex Fast Ethernet.
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.
Caution
Before a physical interface is removed from an EtherChannel (port channel) interface, the physic al
interface must be disabled. To disable a physical interface, use the shutdown command in interface
configuration mode.
Note
Link aggregation across multiple ML-Series cards is not supported.
Note
Policing is not supported on port channel interfaces.
Note
The ML-Series does not support the routing of Subnetwork Access Protocol (SNAP) or Inter-Switch
Link (ISL) encapsulated frames.
Configuring Link Aggregation
You can configure an FEC or POS channel by creating an EtherChannel interface (port channel) and
optionally assigning a network IP address.

Configuring Fast EtherChannel

All interfaces that are members of an FEC should have the same link parameters, such as duplex and
speed.
To create an EtherChannel interface, perform the following procedure, beginning in global configuration
mode:
Command Purpose
Step 1
Router(config)# interface port-channel
channel-number
Creates the EtherChannel interface.
Step 2
Router(config-if)# ip address
ip-address
subnet-mask
(Optional) Assigns an IP address and subnet mask
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.