Configuration Example - Extreme Networks BlackDiamond 6800 MPLS Installation And User Manual

Configuring RSVP-TE

Configuration Example

RSVP-TE LSPs comprise profiles, paths, and the actual LSP. This section describes how
to configure an RSVP-TE LSP.
Configuring RSVP LSPs is a multi-step process with some optional steps, depending on
the specific requirements of the LSP. Conceptually, a number of mandatory elements
must be configured to create an RSVP-TE LSP. In addition, you can also configure
optional elements. In certain configurations, there are also order dependencies.
The profile contains constraints that you wish to apply to the LSP. These constraints
may affect the path selected across the MPLS domain in order to meet. Examples of
profile parameters include bandwidth, setup, and hold priority relative to other
configured LSPs. See Table 5-2 for details of all available parameters.
The path can be used to specify the local and remote endpoints for the LSP and,
optionally, the explicit path across the MPLS domain that the LSP should follow.
The ERO is an object, sent as part of the LSP setup request (path message), explicitly
specifies the path across the MPLS domain the setup request should follow. You can
configure a loose or strict path.
Certain elements of configuration are order dependent. For example if you specify a
profile or path when creating an LSP, those path or profile definitions must already
exist. Similarly a path must exist before an ERO is created, as the ERO is added
explicitly to the path.
5-26 MPLS Module Installation and User Guide