Hey Jay, This could be STP issue. Verify the rest of your config. If you want me to take a look - unicast me your pod # and I'll take a look.
Note: flight departing in 45 minutes. -- Marko Milivojevic - CCIE #18427 Senior Technical Instructor - IPexpert FREE CCIE training: http://bit.ly/vLecture Mailto: [email protected] Telephone: +1.810.326.1444 Web: http://www.ipexpert.com/ On Sat, Nov 13, 2010 at 11:28, Jay Taylor <[email protected]> wrote: > I'm having an issue where whichever port I add last to an etherchannel > between Cat1 and Cat2 will continually bounce. Configuration looks correct; > is this a hardware issue? > > Cat1: > > interface FastEthernet0/23 > switchport trunk encapsulation dot1q > switchport mode trunk > channel-group 12 mode desirable > ! > interface FastEthernet0/24 > switchport trunk encapsulation dot1q > switchport mode trunk > channel-group 12 mode desirable > ! > interface Port-channel12 > switchport trunk encapsulation dot1q > switchport mode trunk > > > Cat1(config)#do sh eth sum > Flags: D - down P - bundled in port-channel > I - stand-alone s - suspended > H - Hot-standby (LACP only) > R - Layer3 S - Layer2 > U - in use f - failed to allocate aggregator > > M - not in use, minimum links not met > u - unsuitable for bundling > w - waiting to be aggregated > d - default port > > > Number of channel-groups in use: 1 > Number of aggregators: 1 > > Group Port-channel Protocol Ports > ------+-------------+-----------+----------------------------------------------- > 12 Po12(SU) PAgP Fa0/23(P) Fa0/24(P) > > > Cat2: > > interface FastEthernet0/23 > switchport trunk encapsulation dot1q > switchport mode trunk > channel-group 12 mode desirable > ! > interface FastEthernet0/24 > switchport trunk encapsulation dot1q > switchport mode trunk > channel-group 12 mode desirable > ! > interface Port-channel12 > switchport trunk encapsulation dot1q > switchport mode trunk > > > Cat2(config)#do sh eth sum > Flags: D - down P - bundled in port-channel > I - stand-alone s - suspended > H - Hot-standby (LACP only) > R - Layer3 S - Layer2 > U - in use f - failed to allocate aggregator > > M - not in use, minimum links not met > u - unsuitable for bundling > w - waiting to be aggregated > d - default port > > > Number of channel-groups in use: 3 > Number of aggregators: 3 > > Group Port-channel Protocol Ports > ------+-------------+-----------+----------------------------------------------- > 12 Po12(SU) PAgP Fa0/23(P) Fa0/24(P) > 23 Po23(SU) LACP Fa0/19(P) Fa0/20(P) > 24 Po24(SU) LACP Fa0/21(P) Fa0/22(P) > > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
