RSVP Reservation Styles in an MPLS Network

A Resource Reservation Protocol (RSVP) reservation style is a request for a bandwidth reservation that includes a set of options. The options are described in the three reservation styles: fixed filter (FF), shared explicit (SE), and wildcard filter (WF) that determine how senders, receivers, and sessions are treated. The reservation style also determines how RSVP signaling reroutes an existing label-switched path (LSP). The egress router must establish each LSP with one of the three reservation styles.

This chapter describes explicitly routed LSPs that are established using the FF or SE styles. (See Table 7.) The RSVP WF reservation style is not used for explicitly routed LSPs because of its lack of applicability for traffic engineering.

The terms node and router are used interchangeably throughout this book.

Table 7: Checklist for RSVP Reservation Styles

RSVP Reservation Styles Tasks	Command or Action
RSVP Reservation Styles Overview
Fixed Filter Style Overview	show configuration protocols mpls show rsvp session detail show mpls lsp extensive )
Shared Explicit Style Overview
Configuring and Verifying an Adaptive LSP	[edit] edit protocol mpls [edit protocols mpls] set label-switched-path lsp-path-name adaptive show commit
Rerouting the LSP Tunnel for the SE Reservation Style
Establish the Initial LSP Tunnel	Not applicable.
Reroute an LSP Tunnel	Not applicable.