Etherchannel configuration with different interface speed

[MuthukumarParamasivan43009]

Hi Team,

          IAs of now ether channel configuration running  between 9300 and 9200 switch's and all are 1G Ethernet interface. Is it possible to add the additional 10G ofc ports in the same port-channel group. It means port channel configuration whether possible 1G interface and 10G ofc interface?

[Leo Laohoo]

EtherChannel Rule #1:  All ports must have the same speed.

[MuthukumarParamasivan43009]

Ok Then IS create a separate port channel group for 10G ofc interface between  9300 and 9200 switches? After that  can we remove the 1G Ethernet interface..

Overall our plan is remove the existing Ethernet interface port channel and add the 10G ofc interface ether channel without downtime.. Is it possible? please suggest

[balaji.bandi]

Sure that is possible, make sure you make a plan correctly.

 Prefered : ( you may see less convergence time)

1. build new Port-channel 10G in shutdown mode

2. when maintenance window, shutdown 1 GB PO and no shutdown 10GB ( depends on STP convergence configured it will be faster if you have Rapid STP will be faster)

Another method you can bring other Port-channel along with 1GB PO - this time one of the PO will go blocking mode (you need be big cautious here)

[Leo Laohoo]

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@MuthukumarParamasivan43009 wrote:

Overall our plan is remove the existing Ethernet interface port channel and add the 10G ofc interface ether channel without downtime.. Is it possible?

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Not possible. 

When switching from 1 Gbps to 10 Gbps the EtherChannel will go DOWN and then up.

[Deepak Kumar]

Hi,

I recently did this from 10G to 40G and you will need to create a new group of port channels with new 10G interfaces and turn it off before connecting cables.

On your Downtime Windows, just do 10G up and 1G down. How long it will take to recover or should you maintain the interval between the UP and Down port channels will depend on your STP (if Layer 2) or other relevant protocol configurations. Make sure you know the behaviors of the LACP / PaGP protocol.