The following display examples are from Transit Router 6. Displays are shown for the show mpls rsvp session and show mpls rsvp session detail commands.
Both displays show two paths from Ingress Router 4 at Loopback IP address 10.4.4.4. to Egress Router 5 at Loopback IP address 10.5.5.5. The (DI) path is an Ingress Detour path, and the path without a code is a protected path. The DI path is the detour path that is taken when Transit Router 6 is unable to use the primary path to Egress Router 5.
device6# show mpls rsvp session
Codes: DI:Ingress Detour DT:Transit Detour DM:Merged Detour
DE:Egress Detour RP:Repaired Session
Ingress RSVP: 0 session(s)
Transit RSVP: 1 session(s)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4(DI) Up SE 1024 1025 1
10.5.5.5 10.4.4.4 Up SE 1024 3 1
Egress RSVP: 0 session(s)
The following example displays the output from Transit Router 6 using the show mpls rsvp session detail command. This command provides additional details about the paths described in the output from the show mpls rsvp session command.
For the DI path, one PLR and Avoid Node ID pair is shown labeled [1]. In [1], the Point of Local Repair (PLR) is at IP Address 10.19.19.2 which is an interface on Transit Router 6 and the Avoid Node is IP address 0.0.0.0. The "Explicit path hop count" field indicates that there are five hops on this path from this router to the egress to the path at routers with the following IP addresses 10.18.18.1 (Transit Router 2), 10.13.13.1 (Ingress Router 4), 10.10.10.1 (Transit Router 3), 10.11.11.2 (Transit Router 1) and 10.15.15.2 (Egress Router 5).
For the primary path, the "Explicit path hop count" field indicates that there is one hop on this path from this router to the egress to the path to the router at IP address 10.19.19.1 (Egress Router 5). The "Fast Reroute" field indicates that the primary path has been configured for one-to-one backup.
device6# show mpls rsvp session detail
Codes: DI:Ingress Detour DT:Transit Detour DM:Merged Detour
DE:Egress Detour RP:Repaired Session
Ingress RSVP: 0 session(s)
Transit RSVP: 1 session(s)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4(DI) Up SE 1024 1025 1
Time left in seconds (PATH refresh: 6, ttd: 4293497
RESV refresh: 24, ttd: 131)
Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 1500
Explicit path hop count: 5
10.18.18.1 (S) -> 10.13.13.1 (S) -> 10.10.10.1 (S) -> 10.11.11.2 (S) ->
10.15.15.2 (S)
Received RRO count: 5
Protection codes: P: Local N: Node B: Bandwidth I: InUse
10.18.18.1 -> 10.13.13.1 -> 10.10.10.1 ->
10.11.11.2 -> 10.15.15.2
Detour Sent: Number of PLR and Avoid Node ID pair(s): 1
[1]: PLR: 10.19.19.2 Avoid Node: 0.0.0.0
PATH sentto: 10.18.18.1 (e5/1 ) (MD5 OFF)
RESV rcvfrom: 10.18.18.1 (e5/1 ) (MD5 OFF)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4 Up SE 1024 3 1
Time left in seconds (PATH refresh: 28, ttd: 150
RESV refresh: 24, ttd: 128)
Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 1500
Fast Reroute: one-to-one backup desired
Setup priority: 7, hold priority: 0
Bandwidth: 0 kbps, hop limit: 255
Detour LSP: UP. Nexthop (node) protection available.
Up/Down times: 1, num retries: 0
Explicit path hop count: 1
10.19.19.1 (S)
Received RRO count: 1
Protection codes: P: Local N: Node B: Bandwidth I: InUse
10.19.19.1
PATH rcvfrom: 10.18.18.1 (e5/1 ) (MD5 OFF)
PATH sentto: 10.19.19.1 (e5/2 ) (MD5 OFF)
RESV rcvfrom: 10.19.19.1 (e5/2 ) (MD5 OFF)
Egress RSVP: 0 session(s)