Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 303)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 279
53-1003031-02
Transit LSP statistics
1
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)
The Ingress Router 4 display
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.
Router4# 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.
Router4# show mpls rsvp session detail
Codes: DI:Ingress Detour DT:Transit Detour DM:Merged Detour
DE:Egress Detour RP:Repaired Session