You are using the same native vlan as your tagging VLAN. Are you tagging the native VLAN on the provider switches?
Have you read thru this article? http://blog.ipexpert.com/2010/07/12/etherchannel-over-dot1q-tunnels/ This may help to give you a few tips when configuring tunneling. Regards, Tyson Scott - CCIE #13513 R&S, Security, and SP Managing Partner / Sr. Instructor - IPexpert, Inc. Mailto: [email protected] Telephone: +1.810.326.1444, ext. 208 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michael Smith Sent: Sunday, December 26, 2010 5:06 PM To: [email protected] Subject: [OSL | CCIE_RS] R&S Volume Lab 5 Hey guys I am having some problems with Lab 5 and doing switch-to-switch Q-in-Q tunneling. This is the configuration I have so far on the client switch; switchport trunk encapsulation dot1q switchport mode trunk switchport trunk native vlan 990 switchport trunk allowed vlan 990 And here is the configuration on the service provider switch; switchport access vlan 990 switchport mode dot1q-tunnel l2protocol-tunnel cdp l2protocol-tunnel stp l2protocol-tunnel vtp no cdp enable I am continuously getting the l2protocol tunnel errors which place my interface into errdisable. Is there anything I'm missing to the configuration? Also in the Detailed Solution guide the configuration of the client switches is not even included. I looked it up in the Doc CD on cisco.com and there is nothing on this error I am getting. Also in detailed solution guide it said to prune vlan 12 from the trunk links. But when I do that it doesn't even do anything. I'm still trying to understand why I would prune vlan 12 when it doesn't have anything to do with my configuration. Thanks in advance for your help. _______________________________________________ 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
