3750 Etherchannel Problem (??)

[mlebus]

Good evening all,

Have two 3750-12S, stacked. After configuring our 10th etherchannel group, all switch ports went down. Did not catch any messages pointing to issue.

Very basic config for inter-vlan routing. One port from each switch in stack are grouped together; 6 SVI's; no sub-interfaces. Not using PAgP or LACP. IOS 12.2(25)SEC, SMI. Reload did not help. Sorry I don't have config to post.

Is this a bug, or something else I'm missing here ?

[glen.grant]

Sure you only have 10 configured ? The 3750 has a maximum of 12 etherchannel groups allowed . Other than that have never heard of anything like that but have never tried 10 etherchannel groups on one 3750 stack most we have tried is like 3 without a problem .

[mlebus]

Yea...I reviewed the config after reboot and there were just 10 groups. I thought I might have hit some limit...thanks for the info.

Looked through bugs and did not see anything. Maybe I'll upgrade to SEE.