I wondered if it was a physical error too. However after removing and reapplying the ether channel config it seems to have stabilized. I had all the ports shut down when I first configured it so I am not sure why I had the issue.
On Sun, Nov 20, 2011 at 4:30 PM, Ben Hughes <[email protected]> wrote: > Hi Marc, > > I'm wondering if you might have a cabling problem? If the periodic DTP > frames couldn't get through the trunk may revert back to an access port and > thus be dropped from the Etherchannel. You could try enabling UDLD and > seeing if the port(s) get err-disabled after a period of time. > > Cheers, > Ben. > > From: Doug Koobs <[email protected]<mailto:[email protected]>> > Date: Mon, 21 Nov 2011 08:17:59 +1100 > To: marc abel <[email protected]<mailto:[email protected]>>, > "[email protected]<mailto:[email protected]>" > <[email protected]<mailto:[email protected]>> > Subject: Re: [OSL | CCIE_RS] Ether-channel error > > It looks like the underlying problem is possibly with trunk status. One link > is access and one is trunking, but etherchannel requires that they be the > same. > > marc abel <[email protected]<mailto:[email protected]>> wrote: > > I have two dynamic desirable trunks configured as an ether-channel and > one keeps un-bundling > > Nov 20 19:49:06.347: %EC-5-CANNOT_BUNDLE2: Fa0/23 is not compatible > with Fa0/24 and will be suspended (trunk mode of Fa0/23 is access, > Fa0/24 is trunk) > Nov 20 19:49:07.335: %LINEPROTO-5-UPDOWN: Line protocol on Interface > FastEthernet0/23, changed state to down > > > It then comes back up and everything seems fine for a bit and then it > happens again. Any idea what the issue could be or how to > troubleshoot? Obviously I could configure them as statically trunking > but a lab requirement prevents this. > > Thank you, > > Marc > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > To Unsubscribe from this list please visit the following link and follow the > directions to unsubscribe. http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > To Unsubscribe from this list please visit the following link and follow the > directions to unsubscribe. http://onlinestudylist.com/mailman/listinfo/ccie_rs > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com To Unsubscribe from this list please visit the following link and follow the directions to unsubscribe. http://onlinestudylist.com/mailman/listinfo/ccie_rs
