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Configuration Guide - MPLS

S7700 and S9700 V200R010C00

This document describes MPLS configurations supported by the switch, including the principle and configuration procedures of static LSPs, MPLS LDP, MPLS TE, MPLS QoS, MPLS OAM, Seamless MPLS, and MPLS common features, and provides configuration examples.
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Configuring an RSVP Resource Reservation Style

Configuring an RSVP Resource Reservation Style

Context

If multiple CR-LSPs pass through the same node, the ingress nodes can be configured with an RSVP resource reservation style to allow the CR-LSPs to share reserved resources or use separate reserved resources on the overlapping node.

A reservation style is used by an RSVP node to reserve resources after receiving resource reservation requests from upstream nodes. The device supports the following reservation styles:
  • Fixed filter (FF): creates an exclusive reservation for each sender. A sender does not share its resource reservation with other senders, and each CR-LSP on a link has a separate resource reservation.
  • SE: creates a single reservation for a series of selected upstream senders. CR-LSPs on a link share the same resource reservation.

The SE style is used for tunnels established using the Make-Before-Break mechanism, whereas the FF style is seldom used.

Perform the following configurations on the ingress node of an MPLS TE tunnel.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    interface tunnel tunnel-number

    The tunnel interface view is displayed.

  3. Run:

    mpls te resv-style { ff | se }

    A resource reservation style is configured.

    The default resource reservation style is SE.

  4. Run:

    mpls te commit

    The configuration is committed.

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Updated: 2019-04-18

Document ID: EDOC1000141902

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