create different CCCs for different customers or for segregating different traffic streamsover different MPLS tunnels.Using CCC, you can connect the following types of circuits:• Local interface with remote interface or VLAN• Local VLAN with remote interface or VLANNOTE: To configure a VLAN circuit as a CCC, you must enable VLAN taggingand specify a VLAN ID.MPLS on J-EX Series switches does not support the following types of CCC configurations:• LDP-based MPLS• Routed VLAN interfaces (RVIs)• Q-in-Q tunneling• Aggregated Ethernet interfaces (LAGs) on CCCs• CCCs with a beginning and ending on the same switchIP over MPLS For Customer-Edge InterfacesYou can configure the customer-edge interfaces of the PE switches for IP over MPLSusing a Layer 3 interface and a static route from the ingress PE switch to the egress PEswitch. See “Configuring MPLS on Provider Edge Switches Using IP Over MPLS (CLIProcedure)” on page 3107 for additional information.Provider SwitchYou must configure one or more provider switches as transit switches within the networkto support the forwarding of MPLS packets. You can add provider switches withoutchanging the configuration of the PE switches.A provider switch does not analyze the packets. It refers to an MPLS label forwardingtable and swaps one label for another. The new label determines the next hop along theMPLS tunnel. A provider switch cannot perform the push or pop operations.Components Required for All Switches in the MPLS NetworkYou must configure the following components on both the provider edge and the providerswitches:• Routing Protocol on page 3061• Traffic Engineering on page 3061• MPLS Protocol on page 3061• RSVP on page 30613060Dell PowerConnect J-Series Ethernet Switch Complete Software Guide for Junos OS