The Transit Router 2 display

The following display examples are from Transit Router 2. Displays are shown for the show mpls rsvp session and show mpls rsvp session detail commands.

As for Transit Router 2, the displays show an Ingress Detour (DI) path, and a path without a code which identifies a protected path. In addition, a Merged Detour (DM) path is shown. The DM path is the detour path merged from Transit Router 6. All three paths are shown from Ingress Router 4 at Loopback IP address 10.4.4.4 to Egress Router 5 at Loopback IP address 10.5.5.5.

device1# 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   1024    1
10.5.5.5         10.4.4.4           Up  SE    1024   1024    1
10.5.5.5         10.4.4.4(DM)       Up  SE    1025   1024    1
Egress RSVP:      0 session(s)

The following example displays the output from Transit Router 2 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, two PLR and Avoid Node ID pairs are shown labeled [1] and [2]. 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 Transit Router 2 and the Avoid Node is IP address 10.18.18.2 on Transit Router 6. In [2] the Point of Local Repair (PLR) is at IP Address 10.19.19.2 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 four hops on this path from this router to the egress of the path at routers with the following IP addresses 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 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 10.19.19.2 which is an interface on Transit Router 6 and the Avoid Node is IP address 0.0.0.0.

For the primary path, the "Explicit path hop count" field indicates that the path has two hops from this router to the egress to the path at routers with the following IP addresses 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.

device2# 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   1024    1
  Time left in seconds (PATH refresh: 1, ttd: 4293570
                        RESV refresh: 13, ttd: 141)
  Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 1500
  Explicit path hop count: 4
   10.13.13.1 (S) -> 10.10.10.1 (S) -> 10.11.11.2 (S) -> 10.15.15.2 (S)
  Received RRO count: 4
   Protection codes: P: Local  N: Node  B: Bandwidth  I: InUse
   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): 2
   [1]: PLR: 10.18.18.1  Avoid Node: 10.18.18.2
   [2]: PLR: 10.19.19.2  Avoid Node: 0.0.0.0
  PATH sentto:  10.13.13.1      (e5/10         ) (MD5 OFF)
  RESV rcvfrom: 10.13.13.1      (e5/10         ) (MD5 OFF)
To              From             St   Style Lbl_in Lbl_out LSPname
10.5.5.5        10.4.4.4         Up   SE    1024   1024    1
  Time left in seconds (PATH refresh: 26, ttd: 151
                        RESV refresh: 13, ttd: 151)
  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: 2
   10.18.18.2 (S) -> 10.19.19.1 (S)
  Received RRO count: 2
   Protection codes: P: Local  N: Node  B: Bandwidth  I: InUse
   10.18.18.2 (PN) -> 10.19.19.1
  PATH rcvfrom: 10.13.13.1      (e5/10         ) (MD5 OFF)
  PATH sentto:  10.18.18.2      (e2/1          ) (MD5 OFF)
  RESV rcvfrom: 10.18.18.2      (e2/1          ) (MD5 OFF)
To               	From                 	St    Style Lbl_in  Lbl_out  LSPname
10.5.5.5          10.4.4.4(DM)          Up    SE    1025    1024     1
  Time left in seconds (PATH refresh: 31, ttd: 133
                        RESV refresh: 13, ttd: 141)
  Tspec: peak 0 kbps rate 0 kbps size 0 bytes m 20 M 1500
  Received RRO count: 4
   Protection codes: P: Local  N: Node  B: Bandwidth  I: InUse
   10.13.13.1 -> 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: 10.19.19.2  Avoid Node: 0.0.0.0
  PATH rcvfrom: 10.18.18.2      (e2/1          ) (MD5 OFF)
  RESV rcvfrom: 10.13.13.1      (e5/10         ) (MD5 OFF)
Egress RSVP:      0 session(s)