(Optional) Configuring a Policy for Triggering LSP Establishment
A policy can be configured to enable LDP to use eligible routes to establish LSPs.
Context
To establish ingress and egress LSPs on a public network, a policy can be configured to enable LDP to use eligible routes to establish LSPs.
An LSP can be established only when each LSR along the LSP has a route matching the FEC for the LSP.
Procedure
- Run system-view
The system view is displayed.
- Run mpls
The MPLS view is displayed.
- Run lsp-trigger { all | host | ip-prefix prefix-name | none }
A policy for triggering LSP establishment is configured.
all: allows LDP to use IGP routes and static routes to establish LSPs. Neither public network BGP routes nor default routes can be used to establish LSPs.
ip-prefix: allows LDP to use FECs filtered by an IP address prefix list to establish LSPs.
none: disables LDP from establishing LSPs.
If the triggering policy is changed from all to host, the LSPs that have been established using host routes are not reestablished.
- Run commit
The configurations are committed.