 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
The Resource Reservation Protocol (RSVP) is a more flexible and powerful way to engineer traffic through a transit network. Like LDP, RSVP establishes LSPs within an MPLS network when you enable both MPLS and RSVP on the appropriate interfaces. However, whereas LDP is restricted to using the configured IGP's shortest path as the transit path through the network, RSVP uses a combination of the Constrained Shortest Path First (CSPF) algorithm and Explicit Route Objects (EROs) to determine how traffic is routed through the network.
Basic RSVP sessions are established in exactly the same way that LDP sessions are established. By configuring both MPLS and RSVP on the appropriate transit interfaces, you enable the exchange of RSVP packets and the establishment of LSPs. However, RSVP also lets you configure link authentication, explicit LSP paths, and link coloring. For more information about these topics, see the JUNOS MPLS Applications Configuration Guide.
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |