Troubleshooting Etherchannel

Hello Tanmoy

Yes, you are correct. Also the native and allowed VLANs must be the same if a trunk is configured, and the switchport mode must be the same (access or trunk). In addition, the possible modes that can be used are the following:

SW1(config)#interface fa0/13
SW1(config-if)#channel-group 1 mode ?
  active     Enable LACP unconditionally
  auto       Enable PAgP only if a PAgP device is detected
  desirable  Enable PAgP unconditionally
  on         Enable Etherchannel only
  passive    Enable LACP only if a LACP device is detected

The following tables indicate which configurations will form an Etherchannel for both the LACP and PAgP protocols:

You can find more information about this at the following lesson:

I hope this has been helpful! Stay healthy and safe!

Laz