Check the trunking status with show int trunk on both sides, the trunks may not have negotiated
Cheers, Donald Robb Productive Networks / Network Consultant ______________________________________________________________ CCIE Written, CCIP, CCSP, CCDP, CCNP, CCNA: Voice, JNCIP, SCP, MCSA 2003, Security+, CCSE.R65, PACE Experts-Exchange: Guru - R&S -----Original Message----- From: marc abel [mailto:[email protected]] Sent: Sunday, November 20, 2011 2:10 PM To: Donald Robb Subject: Re: [OSL | CCIE_RS] Ether-channel error Hello Donald, no both are set to Dynamic Desirable. Cat1 ________________________ interface FastEthernet0/23 switchport trunk encapsulation dot1q switchport mode dynamic desirable channel-group 12 mode active ! interface FastEthernet0/24 switchport trunk encapsulation dot1q switchport mode dynamic desirable channel-group 12 mode active ! Cat2 ___________________________ interface FastEthernet0/23 switchport trunk encapsulation dot1q switchport mode dynamic desirable channel-group 12 mode active ! interface FastEthernet0/24 switchport trunk encapsulation dot1q switchport mode dynamic desirable channel-group 12 mode active ! On Sun, Nov 20, 2011 at 3:07 PM, Donald Robb <[email protected]> wrote: > Hi Marc, > > For Etherchannel to work all ports need to have identical > configuration, if you read the error message you can see that f0/23 is > statically set as an access port and f0/24 is a trunk port. > You'll need to change one of the port so it matches, or you can > statically set the config in the port-channel interface and it should > overwrite the individual port configs. > > Cheers, > Donald Robb > Productive Networks / Network Consultant > ______________________________________________________________ > CCIE Written, CCIP, CCSP, CCDP, CCNP, CCNA: Voice, JNCIP, SCP, MCSA > 2003, > Security+, CCSE.R65, PACE > Experts-Exchange: Guru - R&S > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of marc abel > Sent: Sunday, November 20, 2011 12:54 PM > To: [email protected] > Subject: [OSL | CCIE_RS] Ether-channel error > > 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
