The following display examples are from Ingress Router 4. Displays are shown for the show mpls rsvp session and show mpls rsvp session detail commands.
Like the display for Transit Router 2, the displays show an Ingress Detour (DI) path, a path without a code which identifies a protected path and Merged Detour (DM) path. The DM path is the detour path merged from Transit Routers 2 and 6. All three paths are shown from Ingress Router 4 at IP address Loopback 10.4.4.4 to Egress Router 5 at IP address Loopback 10.5.5.5. In the case of the DM path, a reroute at either Transit Router 2 or 6 sends traffic that had begun at Ingress Router 4 back through it, and forward through Transit Routers 3 and 1 to the ultimate destination at Egress Router 5.
device4# show mpls rsvp session
Codes: DI:Ingress Detour DT:Transit Detour DM:Merged Detour
DE:Egress Detour RP:Repaired Session
Ingress RSVP: 1 session(s)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4(DI) Up SE - 1028 1
10.5.5.5 10.4.4.4(DM) Up SE 1024 1028 1
10.5.5.5 10.4.4.4 Up SE - 1024 1
Transit RSVP: 0 session(s)
Egress RSVP: 0 session(s)
The following example displays the show mpls rsvp session detail output for Ingress Router 4. This command provides additional details about the paths described in the output from the show mpls rsvp session command.
For the DI path, three PLR and Avoid Node ID pairs are shown labeled [1], [2] and [3]. In [1] and [2] the Point of Local Repair (PLR) is at IP Address 10.13.13.1 which is the interface to the primary path on Ingress Router 4. The Avoid Node for pair [1] is IP address 10.13.13.2 on Transit Router 2 and the Avoid Node for pair [2] is IP address 10.18.18.2 on Transit Router 6. In [3] the Point of Local Repair (PLR) is at IP Address 10.18.18.1 which is the interface to the primary path on Ingress Router 2 and the Avoid Node for pair [3] is IP address 10.18.18.2 on Transit Router 6. The "Explicit path hop count" field indicates that there are three hops on the path from this router to the egress of the path at routers with the following IP addresses 10.10.10.1 (Transit Router 3), 10.11.11.2 (Transit Router 1) and 10.15.15.2 (Egress Router 5).
For the DM path, one PLR and Avoid Node ID pair is shown labeled [1]. In [1] the Point of Local Repair (PLR) is at IP Address 10.18.18.1 which is the interface to the primary path on Ingress Router 2 and the Avoid Node is IP address 10.18.18.2 on Transit Router 6.
For the primary path, the "Explicit path hop count" field indicates that there are three hops on this path from Ingress Router 4 to the egress to the path at routers with the following IP addresses 10.13.13.2 (Transit Router 2), 10.18.18.2 (Transit Router 6) and 10.19.19.1 (Egress Router 5). The "Fast Reroute" field indicates that the primary path has been configured for one-to-one backup.
device4# show mpls rsvp session detail
Codes: DI:Ingress Detour DT:Transit Detour DM:Merged Detour
DE:Egress Detour RP:Repaired Session
Ingress RSVP: 1 session(s)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4(DI) Up SE - 1028n 1
Time left in seconds (PATH refresh: 16, ttd: 4293608
RESV refresh: 27, ttd: 133)
Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 65535
Explicit path hop count: 3
10.10.10.1 (S) -> 10.11.11.2 (S) -> 10.15.15.2 (S)
Received RRO count: 3
Protection codes: P: Local N: Node B: Bandwidth I: InUse
10.10.10.1 -> 10.11.11.2 -> 10.15.15.2
Detour Sent: Number of PLR and Avoid Node ID pair(s): 3
[1]: PLR: 10.13.13.1 Avoid Node: 10.13.13.2
[2]: PLR: 10.13.13.1 Avoid Node: 10.18.18.2
[3]: PLR: 10.18.18.1 Avoid Node: 10.18.18.2
PATH sentto: 10.10.10.1 (e2/1 ) (MD5 OFF)
RESV rcvfrom: 10.10.10.1 (e2/1 ) (MD5 OFF)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4(DM) Up SE 1024 1028 1
Time left in seconds (PATH refresh: 6, ttd: 134
RESV refresh: 27, ttd: 133)
Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 1500
Received RRO count: 3
Protection codes: P: Local N: Node B: Bandwidth I: InUse
10.10.10.1 -> 10.11.11.2 -> 10.15.15.2
Detour Rcvd: Number of PLR and Avoid Node ID pair(s): 1
[1]: PLR: 10.18.18.1 Avoid Node: 10.18.18.2
PATH rcvfrom: 10.13.13.2 (e2/20 ) (MD5 OFF)
RESV rcvfrom: 10.10.10.1 (e2/1 ) (MD5 OFF)
To From St Style Lbl_in Lbl_out LSPname
10.5.5.5 10.4.4.4 Up SE - 1024 1
Time left in seconds (PATH refresh: 37, ttd: 148
RESV refresh: 27, ttd: 152)
Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 65535
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: 3
10.13.13.2 (S) -> 10.18.18.2 (S) -> 10.19.19.1 (S)
Received RRO count: 3
Protection codes: P: Local N: Node B: Bandwidth I: InUse
10.13.13.2 (PN) -> 10.18.18.2 (PN) -> 10.19.19.1
PATH sentto: 10.13.13.2 (e2/20 ) (MD5 OFF)
RESV rcvfrom: 10.13.13.2 (e2/20 ) (MD5 OFF)
Transit RSVP: 0 session(s)
Egress RSVP: 0 session(s)