Hi all, I have been reading over http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_44_se/configuration/guide/swtunnel.html#wp1014851 10 times by now, and I am still unsure of the difference.
I have tried to set up a lab to test some stuff out, it consists of 4 switches: SW3 is connected to SW1 and SW4. SW4 is connected to SW3 and SW2 and SW1 and SW2 are connected. I want SW3 to see SW4 through SW1 and SW2. To accomplish this, i have set up a vlan (13) on both SW1 and SW2, then an access port on each with vlan 13 is connected to SW3 and SW4 respectively. On top of this, i use l2protocol-tunnel on each of these interfaces. I was expecting CDP traffic to flow from SW3 to SW1, through the trunk between SW1 and SW2, and from SW2 to SW4. But this does not happen. I think generally im confused between the difference between QinQ and l2 protocol tunneling. Can someone shed some light on this or maybe point me in the correct direction through some documentation apart from the above Cisco Doc... Thanks! Sincerely, Kim Pedersen -- // Freedom Matters // Follow my progress on: http://kpjungle.wordpress.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
