Cisco Systems RJ-45-to-AUX manual Configuring EtherChannel on an IOS−Based Switch, 222

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Configuring EtherChannel on an IOS−Based Switch

To configure EtherChannel on an IOS command−based switch such as the 1900EN series and 2800 series switches, use the Global Configuration port−channel command followed by the mode (on, desirable, or auto):

port−channel mode <ondesirableauto>

Here, the mode is auto:

port−channel auto

Identifying the Template Port

With the IOS−based switches, you must identify a template port for the port−channel parameters. To do so, use the following command in Global Configuration mode:

port−channel template−port <template port>

In this case, the FastEthernet 0/26 is port A on the 1900 series switch:

Catalyst1900(config)# port−channel template−port fastethernet 0/26

Verifying the EtherChannel Configuration on a Command Line Interface IOS

To verify the configuration on an IOS−based switch, use this Privileged mode command:

show interface

The output should look similar to the following on a CLI−based command switch:

PortChannel is Enabled

802.1d STP State: ForwardingForward Transitions: 1

Port−channel mode: auto, preserve−order: Disabled

Port parameters template port: A

Active port: A PortMemberPriorityCap.PartnerPartnerPartnerPartner Device−idPort−idPriorityCap.

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AYes128100−00−00−00−00−0000

BYes128100−00−00−00−00−0000

The output should look similar to the following on a Set/Clear command−based IOS:

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