Configuring Dynamic Explicit Paths on a Tunnel
You can create explicit routing paths dynamically with a routing protocol. IS-IS and OSPF
both currently support explicit routing.
To configure dynamic explicit routing:
1. Create an MPLS tunnel.
host1(config)#interface tunnel mpls:bilbao5
2. Set the path option.
host1(config-if)#tunnel mpls path-option 2 dynamic isis
Additional LDP Configuration Tasks
Several of the LDP configuration tasks are optional, and depend on your network topology
and needs.
Tasks to configure LDP settings include:
•
Configure LDP FEC deaggregation depending on your network design.
See “Configuring LDP FEC Deaggregation” on page 288.
•
Configure the LDP graceful restart mechanism depending on your network design.
See “Configuring LDP Graceful Restart” on page 289.
•
Configure LDP autoconfiguration depending on your network design.
See “Configuring LDP Autoconfiguration” on page 290.
•
Configure LDP-IGP synchronization depending on your network design.
See “Configuring LDP-IGP Synchronization” on page 291.
•
Configure LDP MD5 authentication depending on your network design.
See “Configuring LDP MD5 Authentication” on page 291.
•
Create a filter that determines whether and where LDP labels are distributed depending
on your network design.
See “Controlling LDP Label Distribution” on page 292.
Configuring LDP FEC Deaggregation
Beginning with JunosE Release 8.1.0, LDP routers running JunosE employ LDP FEC
aggregation by default. FEC aggregation means that when an LDP egress router advertises
multiple prefixes, all the prefixes are members of the same FEC. Only a single label is
advertised for this FEC. LDP maintains this aggregation as the advertisement traverses
the network, if possible.
Consider the topology shown in Figure 62 on page 289.
Copyright © 2010, Juniper Networks, Inc.288
JunosE 11.2.x BGP and MPLS Configuration Guide
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