17-72 Riverstone Networks RS Switch Router User Guide Release 8.0
Configuring L2 Tunnels MPLS Configuration
Figure17-17 shows two VLANs, with sites that are connected to routers R1, R3, and R5. The VLANs are mapped to
VC labels that are distributed via LDP. The tunnel LSPs can use either LDP or RSVP as the signaling protocol;
configuration commands for RSVP tunnel signaling are shown for this example.
Timesaver Click on the router name (in blue) to see the corresponding configuration.
Figure 17-17 Tunneling of virtual circuits based on VLAN ID (RSVP tunnel)
Two LSPs are configured on R1. The LSP from R1 to R5 is configured with a strict explicit path of 3 hops (R1, R6,
R5) and is restricted to traffic destined for the 152.1.0.0/16 subnet. The LSP from R1 to R3 is configured with a loose
explicit path of 2 hops.
Tunnel LSPs
Virtual Circuit based on VLAN ID
R3
R1 R2
R6
R4
Customer VLAN 100
Customer VLAN 200
Customer VLAN 100
Customer VLAN 200
Customer VLAN 100
Customer VLAN 200
gi.4.1 gi.14.1 gi.14.2gi.12.2
gi.12.1
gi.3.1
gi.3.2
gi.13.1
gi.7.2
gi.13.2
gi.4.1
gi.5.1
gi.4.2
gi.4.2
R5