We are attempting to connect a port on a 3750 metro to a port on a 6500(3BXL) using Atom. We have are currently running MPLS between them and they are doing L3Vpn with vrfs. We attempted to build the connection by issuing xconnect commands between them. The l2 vc appears to come up but traffic does not appear to pass properly. We are running 12.1(14)AX3 on the 3750 metro's , and 12.2(18)SXD5 on the 6500. I noticed that on the 3750 the port must be configured as a layer 2 port and on the 6500 the port must be configured as a routed port to issue the xconnect command. Is it support to do atom between a 3750 metro and a 6500?