Like Gert said, probably a mismatch on other end. Here's some more info. Do the ports have the same VLANs allowed if trunks, MTU, etc? Seems like a lot can break it.
http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_examp le09186a0080094470.shtml#po1a Chuck -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jeffrey G. Fitzwater Sent: Thursday, January 05, 2012 7:13 AM To: [email protected] Subject: [c-nsp] channel fails when using sup 10g port ? I am trying to use the sup720-10G 10g port and another 10g port on a 6708-10G module as an ether-channel pair. Running IOS 12.2.SXI3 QOS enabled globally, but not enabled on 10G ports by default. If I do a "show mls qos" it tells me that qos is NOT enabled on the 10G modules. (FIFO mode) The command "mls qos 10g-only" must be run to enable it on the 10g ports, but you cannot use the 1g sup ports, which I do use. I have NOT enabled this feature. When I set up the channel, I added the "no mls qos channel-consistancy". Not sure if I need it do to the above issue, just our policy to make sure there is no mismatch issues. When I try to bring up the channel I get the following . and the channel creates a data loop and everything goes to hell, so I shut down one port to break the loop. Group Port-channel Protocol Ports ------+-------------+-----------+------------------------------------------- ---- 16 Po16(SU) LACP Te13/1(P) 16 Po16A(SU) LACP Te7/4(P) ----------------------------------- I have never seen the above documented anywhere but it definitely doesn't look right. I have tried every config possible for the channel but it still fails. (LACP active/passive and ON) The only thing I can think of is... there must be some issue with using the sup 10G port in a channel. Any ideas out there before I open a case? Thanks for any help. Jeff Fitzwater OIT Network Systems Princeton University _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
