Hi, first of all, thanks for the fast reply! I have two sites, interconnected with a 10G Link which terminates on my 4500 Switches. On both Switches, i have a WS-X4648-RJ45-E Line card. The intention is to basically use these Ports like a Patch panel, reaching from one site to the other. Gi 3/1 is a tunnel to the Gi3/1 interface on the other site using vlan 2001 Gi 3/2 is a tunnel to the Gi3/2 interface on the other site using vlan 2002 and so on... |2960 (Po1)|===LACP===|4500|---10G---|4500|===LACP===|(Po1) 2960| Now im trying to create a PC between two other Switches on each site, connected to my 4500 boxes. CDP/STP are working just fine, only LACP negotiation fails. Please note that the PC is supposed to terminate on the 2960 sample switches. As far as i know using two port channels between 2960 and 4500 would be the wrong way. As i said, im just confused because IOS 12.x versions seemed to have a l2protocol-tunnel point-to-point lacp/pagp command, whereas the 15.x versions dont seem to have it. Also your link is giving me a 403 error *edit Exactly like in this: http://blog.ipexpert.com/2010/07/12/etherchannel-over-dot1q-tunnels/ scenario only that the point to point command is missing... *edit2 seems like someone else was having the same Problems, just with PAgP https://supportforums.cisco.com/thread/2155612
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Hi, i'm desperately trying to get LACP working over a dot1q Tunnel. The "Service Provider" Switches are two 4506-E Switches with SUP7-E connected via a 10G Link, running on cat4500e-universalk9.SPA.03.03.00.SG.151-1.SG sample config: dot1q tag vlan native interface GigabitEthernet3/1 switchport access vlan 2001 switchport mode dot1q-tunnel mtu 1504 l2protocol-tunnel cdp l2protocol-tunnel stp no cdp enable spanning-tree portfast end interface TenGigabitEthernet1/1 switchport trunk native vlan 2000 switchport trunk allowed vlan 2000-2047 switchport mode trunk mtu 1508 end All command 12.x reference guides indicate that there used to be a "l2protocol-tunnel point-to-point lacp/pagp" command. Did it get removed in the 15.x Versions? The only way i can get the Port channel to work, is by enabling LACP without negotiation which i really want to avoid!
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