01-09-2008 06:33 AM - edited 03-03-2019 08:11 PM
What is a port channel on a switch? Can anyone explain?
01-09-2008 06:44 AM
Hi Kartik,
In very basic terms port channel is a kind of logical interface which is created when more than 1 physical ports are binded together using channel group command.
See if this link helps you
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12240se/scg1/swethchl.htm#wp1275595
Please come back if you have more doubts.
HTH
Ankur
01-09-2008 06:51 AM
Hi
A port channel on a switch is a logical connection that consists of one or more physical connections - this is basically what etherchannel is about.
So lets say you have 2 switches and you want to connect them together. But for bandwidth you want to connect them with 2 x 1Gbps ports. If you connect them with 2 separate ports then STP will only utilise one of the links per vlan. So you can "group" the 2 links together to form one link of 2Gbps ie.
gi0/1
gi0/2 are the physical ports
po1 is the logical port channel port that consists of gi0/1 & gi0/2.
HTH
Jon
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