Multipoint LDP In-Band Signaling for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths
RFC 6826, “Multipoint LDP In-Band Signaling for Point-to-Multipoint and Multipoint-to-Multipoint Label Switched Paths”, is a Proposed Standard document published in January 2013 by IJ. Wijnands, T. Eckert, N. Leymann, M. Napierala. It has since been updated by RFC 7438. The canonical text is published by the RFC Editor.
Abstract
Consider an IP multicast tree, constructed by Protocol Independent Multicast (PIM), that needs to pass through an MPLS domain in which Multipoint LDP (mLDP) point-to-multipoint and/or multipoint-to-multipoint Labels Switched Paths (LSPs) can be created. The part of the IP multicast tree that traverses the MPLS domain can be instantiated as a multipoint LSP. When a PIM Join message is received at the border of the MPLS domain, information from that message is encoded into mLDP messages. When the mLDP messages reach the border of the next IP domain, the encoded information is used to generate PIM messages that can be sent through the IP domain. The result is an IP multicast tree consisting of a set of IP multicast sub-trees that are spliced together with a multipoint LSP. This document describes procedures regarding how IP multicast trees are spliced together with multipoint LSPs. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 6826 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 6825 Traffic Engineering Database Management Information Base in Support of MPLS-TE/GMPLS
- RFC 6827 Automatically Switched Optical Network Routing for OSPFv2 Protocols
- RFC 6824 TCP Extensions for Multipath Operation with Multiple Addresses
- RFC 6828 Content Splicing for RTP Sessions
- RFC 6829 Label Switched Path Ping for Pseudowire Forwarding Equivalence Classes Advertised over IPv6
- RFC 6830 The Locator/ID Separation Protocol
- RFC 6831 The Locator/ID Separation Protocol for Multicast Environments
- RFC 6820 Address Resolution Problems in Large Data Center Networks