I'm studying for the CCNP BCMSN exam and have a question regarding the use of Etherchannel.
I understand what PAgP and LACP do but why would you use them to setup an etherchannel link?
I mean you still have to configure each side to use PAgP or LACP so why not just turn the ports to "On" and be done without adding another protocol into the mix?
The only reason I can think of to use LACP is if you want to keep standby links available in case one of the active 8 links goes down. fair enough, but PAgP?
If you have 8 ports in a port channel from switch A to switch B what benefit would you get out of using PAgP or LACP over just turning the mode to On?
How do you guys setup Etherchannel links in a real environment?