Cisco Systems A9014CFD manual Configuring EtherChannels, Understanding How EtherChannels Work

C H A P T E R 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.

Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide

OL-23826-09 9-1