Etherchannel Pagp and LACP

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.

Thank you
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ON - is for neither. ON - means that there is no control protocol present (PAgP or LACP), interfaces will just be bundled into etherchannel. Since there is no control protocol, there is a risk of creating loop, so ON should be avoided if both sides support PAgP or LACP.
jskfanAuthor Commented:
So what is the purpose of having  the option "ON " ?
Some devices may not support LACP, PAgP or any of those, have some limitations, or devices for some reason do not properly negotiate Etherchannel creation via dynamic protocol negotiation (e.g. older devices or the VMware or ...). If dynamic Etherchannel negotiation is not available -  mode ON can be the only option available to create Etherchannel (Link Aggregation).

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
jskfanAuthor Commented:
Thank you !
You're welcome.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.