Automatic Creation Of A Targeted Hello Adjacency And Ldp Session; Feature Configuration - Alcatel-Lucent 7450 Manual

Ethernet service switch

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Automatic Creation of a Targeted Hello Adjacency and LDP Session

Automatic Creation of a Targeted Hello Adjacency and LDP

This feature enables the automatic creation of a targeted Hello adjacency and LDP session to a

discovered peer.

The user first creates a targeted LDP session peer parameter template:

config>router>ldp>targeted-session>peer-template template-name

Inside the template the user configures the common T-LDP session parameters or options shared

by all peers using this template. These are the following:

bfd-enable, hello, hello-reduction, keepalive, local-lsr-id, and tunneling.

Note that the tunneling option does not support adding explicit RSVP LSP names. Thus, LDP will

select RSVP LSP for an endpoint in LDP-over-RSVP directly from the Tunnel Table Manager

Then the user references the peer prefix list which is defined inside a policy statement defined in

the global policy manager.

config>router>ldp>targeted-session>peer-template-map peer-template template-name policy

peer-prefix-policy

Each application of a targeted session template to a given prefix in the prefix list will result in the

establishment of a targeted Hello adjacency to an LDP peer using the template parameters as long

as the prefix corresponds to a router-id for a node in the TE database. The targeted Hello adjacency

will either trigger a new LDP session or will be associated with an existing LDP session to that

peer. See section 7.1.2 for more details on the behavior of this feature when an already active

targeted Hello adjacency and LDP session exist to the peer.

Up to five (5) peer prefix policies can be associated with a single peer template at all times. Also,

the user can associate multiple templates with the same or different peer prefix policies. Thus

multiple templates can match with a given peer prefix. In all cases, the targeted session parameters

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