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JUNOS Cookbook by Aviva Garrett

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14.7. Viewing Information About RSVP-Signaled LSPs in the Routing Tables

Problem

You want to check the routing tables to verify that an RSVP-signaled LSP has been established and is being used.

Solution

On the ingress router, look in the inet.3 routing table to view the RSVP routes:

	aviva@R1>  
show route table inet.3
	inet.3: 1 destinations, 1 routes (1 active, 0 holddown, 0 hidden)
	+ = Active Route, - = Last Active, * = Both
	10.0.0.6/32        *[RSVP/7] 00:17:28, metric 2
	                    > via so-0/0/2.0, label-switched-path R1-to-R6

On the transit router, look in the mpls.0 table to see the router's label information:

	aviva@R3> show route table mpls.0
	mpls.0: 7 destinations, 7 routes (7 active, 0 holddown, 0 hidden)
	+ = Active Route, - = Last Active, * = Both
	0                  *[MPLS/0] 06:28:10, metric 1
	                      Receive
	1                  *[MPLS/0] 06:28:10, metric 1
	                      Receive
	2                  *[MPLS/0] 06:28:10, metric 1
	                      Receive
	100048             *[RSVP/7] 05:55:24, metric 1
	                    > via so-0/0/2.0, label-switched-path R6-to-R1
	100048(S=0)        *[RSVP/7] 05:55:24, metric 1
	                    > via so-0/0/2.0, label-switched-path R6-to-R1
	100064             *[RSVP/7] 00:18:59, metric 1
	                    > via so-0/0/3.0, label-switched-path R1-to-R6
	100064(S=0)        *[RSVP/7] 00:18:59, metric 1
	                    > via so-0/0/3.0, label-switched-path R1-to-R6

Discussion

MPLS and RSVP store their routing and forwarding information in two routing tables, inet.3 and mpls.0. The inet.3 table contains the routers learned from the signaling protocol, RSVP (and also LDP), which MPLS uses to make forwarding decisions. The show route table inet.3 command lists the ...

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