Add them to the port channel interface NOT the physical ports. Jeff Fitzwater OIT Network Systems Princeton University
Nate Carlson wrote: > We've got a 6509 [12.2(17a)SX1] connected to a couple switches in a HP > c-Class blade chassis, which are Cisco 3020's [CBS30X0-LANBASE-M, > 12.2(25)SEF1]. We've got an issue where we can't add a VLAN to the trunk > without it going down because of VLAN mismatch while we are trying to add > it to all three interfaces on each side (the two gig's, and the > portchannel interface.] Here's what our config looks like; if anyone has > advice on how we could add VLAN's to the allowed list without the links > dropping, I'd love to hear it! > > 3020: > ! > interface Port-channel1 > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 1,20,25 > switchport mode trunk > spanning-tree link-type shared > ! > interface GigabitEthernet0/17 > description description Trunk to cat1 (6509) port 6/19 > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 1,20,25 > switchport mode trunk > channel-group 1 mode desirable > spanning-tree link-type shared > ! > interface GigabitEthernet0/18 > description description Trunk to cat1 (6509) port 7/19 > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 1,20,25 > switchport mode trunk > channel-group 1 mode desirable > spanning-tree link-type shared > ! > > > 6509: > ! > interface Port-channel1 > description hp c-class switch port 6/19, 7/19 > no ip address > flowcontrol receive on > switchport > switchport trunk encapsulation dot1q > switchport trunk allowed vlan 1,20,25 > switchport mode trunk > switchport nonegotiate > spanning-tree link-type shared > ! > interface GigabitEthernet6/19 > description trunk to hp c-class port 0/17 > no ip address > logging event link-status > flowcontrol receive on > switchport > switchport trunk allowed vlan 1,20,25 > switchport mode trunk > switchport nonegotiate > spanning-tree link-type shared > channel-group 1 mode desirable > ! > interface GigabitEthernet7/19 > description trunk to hp c-class port 0/18 > no ip address > logging event link-status > flowcontrol receive on > switchport > switchport trunk allowed vlan 1,20,25 > switchport mode trunk > switchport nonegotiate > spanning-tree link-type shared > channel-group 1 mode desirable > ! > > > ------------------------------------------------------------------------ > | nate carlson | [EMAIL PROTECTED] | http://www.natecarlson.com | > | depriving some poor village of its idiot since 1981 | > ------------------------------------------------------------------------ > _______________________________________________ > 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/
