Riverstone Networks WICT1-12 User Manual

Page 403

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Riverstone Networks RS Switch Router User Guide Release 8.0 17-95

MPLS Configuration

Configuring L2 Tunnels

Figure 17-21

shows two VLANs (with IDs 50 and 60) that enter R1 on port gi.2.2. VLAN 50 traffic enters R3 on port

gi.15.1, while VLAN 60 traffic enters R5 on port gi.6.2. The VLAN ID/port combinations 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 17-21 Tunneling of virtual circuits based on VLAN ID and port (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. The following is the configuration for R1:

! Configure VLANs and interfaces

vlan create ldp_in port-based id 110

vlan create ldp_in2 port-based 120

vlan create to_rs3_only port-based id 50

vlan create to_rs5_only port-based id 60

Tunnel LSPs

Virtual Circuit based on VLAN ID and port

R3

R1

R2

R5

R6

R4

Customer VLAN 50
Customer VLAN 60

Customer VLAN 60

Customer VLAN 50

gi.15.1

gi.6.2

gi.2.2

gi.4.1 gi.14.1

gi.14.2 gi.12.2

gi.12.1

gi.3.1

gi.3.2

gi.13.1

gi.13.2

gi.4.1
gi.5.1

gi.4.2

gi.4.2

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