4503-4006 Etherchannel

[russell-r]

All:

I completed a network cutover this weekend, but had an issue with one etherchannel. All of my etherchannels between my 4503 and 4506' worked fine - I only had a problem with my connection to my 4006. Is it possible to form an etherchannel between a switch with IOS (4503) and an older switch with CAT OS (4006)? As weird as it sounds, I was unable to get past my 4503 with channeling on in the 4006. Once I removed the channel I was fully operational...hmmm.. So as of now I only have the one gig link to the 4503 - I removed my second gig link. Thoughts anyone?

Thanks in advance for any feedback...

[oj88]

Hi,

What Sup engines are you using? OS versions?

Are you using LACP(802.3ad) or PAgP? Are you running the same etherchannel protocol on both switches?

[russell-r]

4503 - Sup IV 12.1(19)EW1 - IOS

4006 - Sup III 5.5(4) - CAT OS

Using PAgP