database logo graphic

RFC 7140

"LDP Extensions for Hub and Spoke Multipoint Label Switched Path", March 2014

Canonical URL:
This document is also available in this non-normative format: PDF.
Updated by:
RFC 7358
L. Jin
F. Jounay
IJ. Wijnands
N. Leymann
mpls (rtg)

Cite this RFC: TXT  |  XML


Other actions: Find Errata (if any)  |  Submit Errata  |  Find IPR Disclosures from the IETF


This document introduces a hub and spoke multipoint (HSMP) Label Switched Path (LSP), which allows traffic from root to leaf through point-to-multipoint (P2MP) LSPs and also leaf to root along the reverse path. That means traffic entering the HSMP LSP from the application/customer at the root node travels downstream to each leaf node, exactly as if it were traveling downstream along a P2MP LSP to each leaf node. Upstream traffic entering the HSMP LSP at any leaf node travels upstream along the tree to the root, as if it were unicast to the root. Direct communication among the leaf nodes is not allowed.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.

Go to the RFC Editor Homepage.