3Com Router 3000 Ethernet FamilyConfiguration Guide Chapter 4 MPLS L2VPN Configuration3Com Corporation4-94.2.5 Creating CCC ConnectionCCC connections fall into local connection and remote connection. Local connectionrefers to the connection established between two local CEs. With local connection,switching can be directly implemented on PE without using static LSP. Remoteconnection refers to the connection between a local CE and a remote CE, that is, twoCEs connected to different PEs. In this case, two static LSPs (one in each direction) arerequired for PE-PE packet transmission.Perform the following configurations in system view.Table 4-7 Create a CCC connectionOperation CommandCreate a local CCCconnectionccc ccc-connection-name interface type numberout-interface outinterface-type outinterface-numCreate a remote CCCconnectionccc ccc-connection-name interface type numbertransmit-lsp transmit-lsp-name receive-lspreceive-lsp-nameCaution:A remote CCC connection uses its LSP in an exclusive way.Therefore, two static LSPs (with each in one direction) must be configured for eachremote CCC connection, rather than having two CCC connections share the samestatic LSP. A static LSP that has been used by a remote CCC connection cannot beused for other purposes like carrying IP or BGP/MPLS VPN data. For this reason, whencreating a static LSP for a CCC connection, you are recommended to assign an IPaddress beyond the local network to the FEC of the CCC connection to prevent thelikelihood of selecting the LSP for routing.For one FR interface, L2 MPLS VPN can only be encapsulated on one subinterface.Therefore, the following configuration is invalid:ccc vpntest interface Serial6/0/0.2 out-interface Serial6/0/1.1ccc vpnfr interface Serial6/0/0.1 transmit-lsp 2to3 receive-lsp 3to24.3 Configuration of MPLS L2VPN in SVC ModePerform the following tasks to configure SVC on a PE:z Configure interfacez Enable MPLS, MPLS LDPz Enable MPLS L2VPNz Configure PE-PE tunnel
