I inherited a network with a 3750 stack that functions as the core of the network. (Not really core switches, I know) I am cleaning up a bunch of half done stuff and noticed that all 12 of the port-channel groups are in 'on' mode. I've read that this isn't really best practice and when you create these things with Cisco gear at both ends (as this is), you want to use 'desirable' mode.
Long story short, would it be worth it to tear down all the port-channels and rebuild them in 'desirable' mode? Everything is working perfectly now.
Thanks.
