1035
Configuring EtherChannels
Information About Configuring EtherChannels
Figure 110 Load Distribution and Forwarding Methods
Default EtherChannel Settings
EtherChannel Configuration Guidelines
If improperly configured, some EtherChannel ports are automatically disabled to avoid network loops and other problems.
Follow these guidelines to avoid configuration problems:
101239
Cisco router
with destination-based
forwarding enabled
EtherChannel
Switch with
source-based
forwarding enabled
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 MAC address.
Load balancing Load distribution on the switch is based on the source-MAC
address of the incoming packet.