CHAPTER
9-1
Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
9
Configuring EtherChannels
This chapter describes how to configure EtherChannels on the Cisco ASR 901 router Layer 2 or Layer 3
LAN ports.
Contents
• Understanding How EtherChannels Work, page 9-1
• EtherChannel Configuration Guidelines and Restrictions, page 9-4
• Configuring Etherchannels, page 9-5
• EVC On Port-Channel, page 9-10
Understanding How EtherChannels Work
This section contains the following topics:
• EtherChannel Feature Overview, page 9-1
• Understanding How EtherChannels Are Configured, page 9-2
• Understanding Port-Channel Interfaces, page 9-4
• Understanding Load Balancing, page 9-4
EtherChannel Feature Overview
An EtherChannel bundles individual Ethernet links into a single logical link that provides the aggregate
bandwidth of up to eight physical links.
The Cisco ASR 901 router supports a maximum of eight EtherChannels with a maximum eight member
links in each EtherChannel.
You can form an EtherChannel with up to eight compatibly configured LAN ports in a Cisco ASR 901.
All LAN ports in each EtherChannel must be of the same speed and must all be configured as Layer 2
LAN ports.
Note The network device to which a Cisco ASR 901 is connected may impose its own limits on the number
of ports in an EtherChannel.