Is there a difference between etherchannel between (2) Cisco devices or etherchannel between a device sharing dual NICs?

I'm not sure if there are protocols involved as Cisco to Cisco is proprietary and you never really have to investigate this type of thing.

10/31/2008 1:19:09 PM

Depends on if you're doing PAgP or LACP

PAgP = Cisco proprietary
LACP = IEEE standard

10/31/2008 2:14:56 PM

I'm not sure if I need to specify. I looked a previous configs and I take it that Cisco has the default set. I'll try it w/out. How would you apply UDLD?


Do you have a sample config?

10/31/2008 5:51:38 PM

yes, you need to specify.

what switch are you using, and what are you trying to create an etherchannel with? A server? Does it support LACP?

you're not going to want UDLD between a switch and a server.

10/31/2008 7:17:36 PM

i love LACP

it is my hero

10/31/2008 9:00:02 PM

its a 4948 . . . i have time to look into this. tomorrow I have to upgrade a CallManager cluster spread across the city. should be fun, fun, fun . . .



then I'll do the 4948 etherchannel. i'll be connecting (9) HP servers with dual NICs teamed. they'll be port channels configured on the 4948.

10/31/2008 9:54:58 PM

bullshit

10/31/2008 10:01:20 PM