Etherchannel Pagp and LACP
when configuring Etherchannel, we have the following options:
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 one option that I do not understand is the "ON" option, whether it is is used for Pagp or LACP or for Both.