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37-11
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 37 Configuring EtherChannels and Link-State Tracking
Configuring EtherChannels
Configuring EtherChannels
These sections contain this configuration information:
• Default EtherChannel Configuration, page 37-11
• EtherChannel Configuration Guidelines, page 37-12
• Configuring Layer 2 EtherChannels, page 37-13 (required)
• Configuring EtherChannel Load Balancing, page 37-15 (optional)
• Configuring the PAgP Learn Method and Priority, page 37-16 (optional)
• Configuring LACP Hot-Standby Ports, page 37-18 (optional)
Note Make sure that the ports are correctly configured. For more information, see the “EtherChannel
Configuration Guidelines” section on page 37-12.
Note After you configure an EtherChannel, configuration changes applied to the port-channel interface apply
to all the physical ports assigned to the port-channel interface, and configuration changes applied to the
physical port affect only the port where you apply the configuration.
Default EtherChannel Configuration
Table 37-3 shows the default EtherChannel configuration.
Table 37-3 Default EtherChannel Configuration
Feature Default Setting
Channel groups None assigned.
Port-channel logical interface None defined.
PAgP mode No default.
PAgP learn method Aggregate-port learning on all ports.
PAgP priority 128 on all ports.
LACP mode No default.
LACP learn method Aggregate-port learning on all ports.
LACP port priority 32768 on all ports.
LACP system priority 32768.
LACP system ID LACP system priority and the switch or switch stack
MAC address.
Load balancing Load distribution on the switch is based on the
source-MAC address of the incoming packet.