I have 2 switches (Cisco Nexus 5020 w. 2148 FEX & Cisco catalyst 2950 w. 2 giga I/F) where I need to define a trunk in between them. When I do this the nexus disables the port because it receives a bpdu-guard packed on this interface. OK - no problem - I could just define the bpdu-guard filter on this interface but I don't think this is the correct way to do it. The 2950 sends a bpdu guard packed becuase it is the default behaviour - should I define the port as "spanning-trr port type network" or how should I normally define a trunk between 2 switches?
btw - "spanning-tree port type network" isn't supported on FEX ports ? Is the only way to activate this bpdu-filter if I don't want to use my expensive 1GB ports from the NX5020 directly?
