Defining Configured Explicit Paths; Specifying Configured Explicit Paths On A Tunnel - Juniper JUNOSE 11.2.X BGP AND MPLS Configuration Manual

Defining Configured Explicit Paths

Specifying Configured Explicit Paths on a Tunnel

Copyright © 2010, Juniper Networks, Inc.
MPLS explicit routing configuration tasks include the following sets of tasks:
Defining Configured Explicit Paths on page 287
Specifying Configured Explicit Paths on a Tunnel on page 287
Configuring Dynamic Explicit Paths on a Tunnel on page 288
You can create explicit routing paths manually by configuring an explicit path with a name
and a series of addresses (hops) from ingress to egress.
To manually configure explicit routing:
Define an explicit path and access Explicit Path Configuration mode.
1.
host1(config)#mpls explicit-path name xyz
host1(config-expl-path)#
Do one of the following to configure the hops in the LSP:
2.
Set the next hop (if need be) at a particular index in the explicit path.
host1(config-expl-path)#index 5 next-address 172.18.100.5
Add the next hop (if need be) after a particular index in the explicit path.
host1(config-expl-path)#append-after 5 next-address 192.168.47.22
Configure a next hop at the end of the MPLS explicit path.
3.
host1(config-expl-path)#next-address 10.10.9.2
Enable the explicit path.
4.
host1(config)#mpls explicit-path name xyz
NOTE: To prevent a partially configured explicit path from being used, do not enable
it until you have finished configuring or modifying the path.
(Optional) List the currently configured explicit path.
5.
host1(config-expl-path)#list 5
After you have defined a configured explicit path, you can configure the path on a tunnel.
To configure explicit routing on a tunnel:
Create an MPLS tunnel.
1.
host1(config)#interface tunnel mpls:1
Set the path option.
2.
host1(config-if)#tunnel mpls path-option 1 explicit name xyz
Chapter 4: Configuring MPLS
287