 | Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
When transit traffic is routed through an IP network, MPLS is often used to engineer its passage. Although the exact path through the transit network is of little importance to either the sender or the receiver of the traffic, network administrators often want to route traffic more efficiently between certain source and destination address pairs. By adding a short label with specific routing instructions to each packet, MPLS switches packets from router to router through the network rather than forwarding packets based on next-hop lookups. The resulting routes are called label-switched paths (LSPs). LSPs control the passage of traffic through the network and speed traffic forwarding.
You can create LSPs manually, or through the use of signaling protocols. J-series Services Routers support two signaling protocols—the Label Distribution Protocol (LDP) and the Resource Reservation Protocol (RSVP).
| Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |