4000 Router Series MPLS Configuration Guide

4. Configure an MPLS TE tunnel on Router A, the ingress node of the primary CRLSP:

# Configure an explicit path for the primary CRLSP.

[RouterA] explicit-path pri-path

[RouterA-explicit-path-pri-path] nexthop 2.1.1.2

[RouterA-explicit-path-pri-path] nexthop 3.1.1.2

[RouterA-explicit-path-pri-path] nexthop 4.1.1.2

[RouterA-explicit-path-pri-path] nexthop 4.4.4.4

[RouterA-explicit-path-pri-path] quit

# Configure the MPLS TE tunnel for the primary CRLSP: Create MPLS TE tunnel interface Tunnel 4,

and specify the tunnel destination address as the LSR ID of Router D, the tunnel signaling protocol

as RSVP-TE, and the explicit path as pri-path.

[RouterA] interface tunnel 4 mode mpls-te

[RouterA-Tunnel4] ip address 10.1.1.1 255.255.255.0

[RouterA-Tunnel4] destination 4.4.4.4

[RouterA-Tunnel4] mpls te signaling rsvp-te

[RouterA-Tunnel4] mpls te path preference 1 explicit-path pri-path

# Enable FRR for the MPLS TE tunnel.

[RouterA-Tunnel4] mpls te fast-reroute

[RouterA-Tunnel4] quit

# After the previous configuration, execute the display interface tunnel command on Router A. The

output shows that the tunnel interface Tunnel 4 is up.

[RouterA] display interface tunnel

Tunnel4 current state: UP

Line protocol current state: UP

Description: Tunnel3 Interface

The Maximum Transmit Unit is 64000

Internet Address is 9.1.1.1/24 Primary

Tunnel source unknown, destination 3.3.3.9

Tunnel bandwidth 64 (kbps)

Tunnel TTL 255

Tunnel protocol/transport CR_LSP

Last clearing of counters: Never

Last 300 seconds input rate: 0 bytes/sec, 0 bits/sec, 0 packets/sec

Last 300 seconds output rate: 1911 bytes/sec, 15288 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 drops

1526 packets output, 22356852 bytes, 0 drops

# Execute the display mpls te tunnel-interface command on Router A to display detailed

information about the MPLS TE tunnel.

[RouterA] display mpls te tunnel-interface

Tunnel Name : Tunnel 4

Tunnel State : Up (Main CRLSP up, Shared-resource CRLSP down)

Tunnel Attributes :

LSP ID : 48960 Tunnel ID : 4

Admin State : Normal

Ingress LSR ID : 1.1.1.1 Egress LSR ID : 3.3.3.3

Signaling : RSVP-TE Static CRLSP Name : -