When you configure etherchannel you bind some ports together in a single bundle so traffic which is already passing through that port may get affected for few seconds may be less than seconds depending on how fast you configure etherchannel at a remote switch also.
Till the time etherchannel is UP and running traffic is affected. So make sure you have exactly same configuration on all the ports participating in etherchannel and on both the switches.
I will recommend to take and arrange a downtime of may be 1 minute to configure both the switches but if you are fast enough or have some scripts which can configure etherchannel on both the switches at a same time switching of traffic is very quick.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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