Cisco Catalyst 3550 Series - Configuring Etherchannels

30-7
Catalyst 3550 Multilayer Switch Software Configuration Guide
78-11194-09
Chapter 30 Configuring EtherChannels
Configuring EtherChannels
Figure 30-3 Load Distribution and Forwarding Methods
Configuring EtherChannels
These sections describe how to configure EtherChannel on Layer 2 and Layer 3 interfaces:
• Default EtherChannel Configuration, page 30-8
• EtherChannel Configuration Guidelines, page 30-8
• Configuring Layer 2 EtherChannels, page 30-9
• Configuring Layer 3 EtherChannels, page 30-11
• Configuring EtherChannel Load Balancing, page 30-14
• Configuring the PAgP Learn Method and Priority, page 30-15
Note Make sure that the interfaces are correctly configured (see the “EtherChannel Configuration Guidelines”
section on page 30-8).
Note After you configure an EtherChannel, configuration changes applied to the port-channel interface apply
to all the physical interfaces assigned to the port-channel interface, and configuration changes applied
to the physical interface affect only the interface where you apply the configuration.
74619
Cisco router
with destination-based
forwarding enabled
EtherChannel
Catalyst 2950, 2955, or 3550
switch with source-based
forwarding enabled