Design and performance of a network-processor-based intelligent DSLAM

Author

Neogi, Raja ; Lee, Kam ; Panesar, Kiran ; Zhou, Jennifer

Volume

17

Issue

4

fYear

2003

Firstpage

56

Lastpage

62

Abstract

We present the architecture, design, and evaluation of a software-centric intelligent DSLAM (digital subscriber line access multiplexer) prototype made up of an IXP network-processor-based data plane and an IXC control-processor-based control plane. This work demonstrates that versatile and programmable network nodes can be built using network processors without undermining system performance. The challenges lie in three areas: 1) effective use of network processor resources; 2) implementation of an advanced IP control plane on a commodity OS; 3) utilizing standard-based APIs to enable efficient control plane/data plane communication. We discuss our solutions to these challenges and report on experience gained from developing the intelligent DSLAM prototype.

Keywords

application program interfaces; digital subscriber lines; microprocessor chips; multiplexing; multiplexing equipment; network operating systems; telecommunication computing; API; IXC control processor; IXP network processor; commodity OS; control plane; data plane; intelligent digital subscriber line access multiplexer; programmable network nodes; versatile network nodes; Communication system control; Communication system traffic control; DSL; Intelligent networks; Message passing; Multiprotocol label switching; Protocols; Prototypes; Software prototyping; Wide area networks;

fLanguage

English

Journal_Title

Network, IEEE

Publisher

ieee

ISSN

0890-8044

Type

jour

DOI

10.1109/MNET.2003.1220697

Filename

1220697