You'll probably find spanning-tree is causing this issue .
On 22 Nov 2011, at 18:42, "marc abel" <[email protected]> wrote: > Very interesting, what did you do to resolve it last time? > > On Tue, Nov 22, 2011 at 2:15 AM, Christophe Lemaire > <[email protected]> wrote: >> Hi Marc, >> >> Hmmm... Weird I had that exact same issue when doing that lab... >> (excepted in my case Fa0/24 was flapping between trunk and access...) >> >> I plan to do that lab again on Thursday, I let you know if it happened >> again... >> >> Christophe >> >> >> On Mon, Nov 21, 2011 at 12:34 AM, marc abel <[email protected]> wrote: >>> It was Vol 3 lab 9 task 1.2 >>> >>> On Sun, Nov 20, 2011 at 5:15 PM, Jay McMickle <[email protected]> >>> wrote: >>>> Marc- which task is it? >>>> >>>> Regards, >>>> Jay McMickle- CCNP,CCSP,CCDP >>>> Sent from my iPhone >>>> http://mycciepursuit.wordpress.com >>>> >>>> >>>> On Nov 20, 2011, at 2:50 PM, Adam Booth <[email protected]> wrote: >>>> >>>>> Hi Marc, >>>>> >>>>> Do Fa0/23 and Fa0/24 have the same configurations? For example is one >>>>> port >>>>> switch access for instance, with the other able to negotiate a trunk using >>>>> DTP? >>>>> >>>>> Perhaps look at hard setting the interfaces to what you want >>>>> >>>>> switchport trunk encapsulation dot1q >>>>> switchport mode trunk >>>>> switchport nonegotiate >>>>> >>>>> Cheers, >>>>> Adam >>>>> >>>>> On Mon, Nov 21, 2011 at 5:54 AM, marc abel <[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 >>> >> > _______________________________________________ > 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
