Figure 60: Flow for Setting EXP Bits for All Pushed Labels
Related Topics Configuring EXP Bits for Differentiated Services on page 304•
• Configuring MPLS and Differentiated Services on page 303
Point-to-Multipoint LSPs Overview
A point-to-multipoint MPLS LSP is an RSVP-TE LSP with a single ingress LSR and one
or more egress LSRs. You can use point-to-multipoint LSPs to avoid unnecessary
duplication of packets at the ingress router by allowing non-ingress LSRs to replicate the
incoming data on one or more outgoing interfaces. Point-to-multipoint LSPs for multicast
VPNs are supported for intra-autonomous system (AS) environments (within an AS),
but are not supported for inter-AS environments (between ASs).
Although you can use point-to-point LSPs to provide point-to-multipoint services, this
type of configuration can cause data replication at the ingress LSR or duplicate traffic
271Copyright © 2010, Juniper Networks, Inc.
Chapter 3: MPLS Overview
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