IP multicast support in MPLS

Author

Acharya, Arup ; Griffoul, Frédéric ; Ansari, Furquan

Author_Institution

C&C Res. Lab., NEC USA, USA

fYear

1999

fDate

1999

Firstpage

211

Lastpage

218

Abstract

Multicast support in an MPLS (multiprotocol label switching) network has yet to be defined. An MPLS network consists of label switching devices such as ATM. This document discusses both dense-mode and sparse-mode IP multicast within the context of an MPLS network. Unlike unicast routing, dense-mode multicast routing trees are established in a data-driven manner and it is not possible to topologically aggregate such trees, which are rooted at different sources. In sparse-mode multicast, source-specific trees may coexist with a core/shared tree, and it is not possible to assign a common label to traffic from different sources on a branch of the shared tree. This leads us to suggest a per-source traffic-driven label allocation scheme for supporting all three types of multicast (dense mode, shared tree, source tree) routing trees in an MPLS network

Keywords

Internet; asynchronous transfer mode; multicast communication; protocols; telecommunication network routing; telecommunication traffic; tree data structures; ATM; IP multicast support; MPLS network; common label; core/shared tree; dense-mode IP multicast; dense-mode multicast routing trees; label switching devices; multiprotocol label switching; per-source traffic-driven label allocation scheme; routing tree; source-specific trees; sparse-mode IP multicast; Aggregates; Asynchronous transfer mode; Hardware; Multiprotocol label switching; National electric code; Packet switching; Routing; Switches; Unicast; Virtual colonoscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

ATM Workshop, 1999. IEEE Proceedings

Conference_Location

Kochi

Print_ISBN

4-88552-164-5

Type

conf

DOI

10.1109/ATM.1999.786859

Filename

786859