EtherChannel with 3 different switches

[www.anaya]

Hi I have the following topology:

Distribution Switch -> MC -> Fiber -> MC -> SW3, SW2, SW1.

I have 3 EtherChannels configured on SW3, SW2 and SW1 to Distribution Switch, however them don't have redundancy between each. (SW3, SW2, SW1).

I want to add 3 more switches under SW3.
Let's call 1st switches under SW3 as SW3_child1.

I want to add a EtherChannel on this SW3_child1 between each "father", meaning SW3, SW2 and SW1.

The goal is the following:

If SW3 is down, SW3_child1 will reach the Distribution Switch trough SW2, If SW2 isn't is down then it will go trough SW1.

I'm guessing that I have to create a EtherChannel on each switch with the same channel number. But I'm not sure if I'm doing wrong.

[Masoud Pourshabanian · Accepted solution]

Hello,

Connect child 1 to sw3 with one etherchannel and child 1 to SW2 with another ether channel.

Connect child 2 to sw3 with one etherchannel and child 1 to SW1 with another ether channel.

and child 3 the same way to provide redundancy.

Ether channel number is not important. It can be anything. Having ether channel with the same number does not help.

Just make sure you have configured spanning tree correctly to avoid loop.