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Router r1, Router r2 – Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide

273

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Transit LSP statistics

1

Path direct_conn is the primary path for LSP t3, and path via_r2 is the secondary path. When the
LSP is enabled, RSVP signaling messages set up path direct_conn. Packets assigned to this LSP
use this path to reach the destination.

When path direct_conn fails, path via_r2 is set up, and packets assigned to LSP t3 then use path
via_r2 to reach the destination. By default, the secondary path is not set up until the primary path
fails. When the user employs the standby parameter in the configuration of the secondary path,
both the primary and secondary paths are set up at the same time, although packets assigned to
the LSP travel on the primary path only. When the primary path fails, the secondary path
immediately carries the traffic.

Router R1

The following commands configure Router R1 in

Figure

43

.

Brocade(config)# router mpls

Brocade(config-mpls)# mpls-interface e 2/1 e 2/2

Brocade(config-mpls)# path direct_conn

Brocade(config-mpls-path)# strict 10.11.1.2

Brocade(config-mpls-path)# exit

Brocade(config-mpls)# path via_r2

Brocade(config-mpls-path)# strict 10.1.1.2

Brocade(config-mpls-path)# exit

Brocade(config-mpls)# lsp t3

Brocade(config-mpls-lsp)# to 10.30.1.1

Brocade(config-mpls-lsp)# primary direct

Brocade(config-mpls-lsp)# secondary via_r2

Brocade(config-mpls-lsp)# enable

Brocade(config-mpls-lsp)# exit

Brocade(config-mpls)# interface e 2/1

Brocade(config-e10000-2/1)# ip address 10.1.1.1 255.0.0.0

Brocade(config-e10000-2/1)# ip ospf area 1

Brocade(config-e10000-2/1)# exit

Brocade(config-mpls)# interface e 2/2

Brocade(config-e10000-2/2)# ip address 10.11.1.1 255.0.0.0

Brocade(config-e10000-2/2)# ip ospf area 1

Brocade(config-e10000-2/2)# exit

Brocade(config-mpls)# interface e 3/2

Brocade(config-if-e100-3/2)# ip address 192.168.2.1 255.255.255.0

Brocade(config-if-e100-3/2)# exit

Brocade(config)# router ospf

Brocade(config-ospf-router)# area 1

Brocade(config-ospf-router)# exit

Router R2

In the configuration in

Figure

43

, Router R2 serves as a transit LSR for path via_r2. Since path

via_r2 is the secondary path for the LSP, it is used only when the primary path fails.

Brocade(config)# router mpls

Brocade(config-mpls)# mpls-interface e 2/1 e 4/1

Brocade(config-mpls)# interface e 2/1

Brocade(config-e10000-2/1)# ip address 10.1.1.2 255.0.0.0

Brocade(config-e10000-2/1)# ip ospf area 1

Brocade(config-e10000-2/1)# exit