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1. (WO2018158615) METHOD AND APPARATUS FOR ENABLING THE CREATION OF A POINT-TO-MULTIPOINT LABEL SWITCHED PATH MULTICAST DISTRIBUTION TREE FOR A GIVEN IP MULTICAST STREAM

Pub. No.:    WO/2018/158615    International Application No.:    PCT/IB2017/051226
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Fri Mar 03 00:59:59 CET 2017
IPC: H04L 12/751
H04L 12/761
H04L 12/723
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: CHUNDU, Kotesh Babu
Title: METHOD AND APPARATUS FOR ENABLING THE CREATION OF A POINT-TO-MULTIPOINT LABEL SWITCHED PATH MULTICAST DISTRIBUTION TREE FOR A GIVEN IP MULTICAST STREAM
Abstract:
A method and apparatus for enabling creation of a point-to-multipoint label switched path (LSP) multicast distribution tree for a given internet protocol (IP) multicast stream associated with a source, where the source is coupled to a receiver of the IP multicast stream through an Multiprotocol Label Switching (MPLS) network. Responsive to determining that the root of an LSP multicast distribution tree is not identified based upon BGP, performing: receiving an IP address of a second edge network device of the MPLS network; identifying the second edge network device as the root of the LSP multicast distribution tree coupling the MPLS network with an IP network including the source of the multicast stream; and based upon the IP address, causing the creation of the LSP tree, where the LSP multicast distribution tree has the second edge network device as a root.