QoS sensitive routing in DiffServ MPLS-TP networks

Author

Zhang, Huibin ; Zhao, Yongli ; Han, Dahai ; Jie Zhang ; Xing, Jianchao

Author_Institution

Key Lab. of Inf. Photonics & Opt. Commun., BUPT, Beijing, China

Volume

1

fYear

2010

fDate

22-24 Oct. 2010

Abstract

QoS sensitive routing is a very important component of traffic engineering in DiffServ MPLS-TP networks. This study investigated the characteristics of packet scheduling algorithms and the problem of unfairness when QoS routing does not consider the mix of traffic classes. A new routing scheme STE-QOSPF-Mix, which takes the reserved bandwidth supported WFQ algorithm into account, is proposed. To determine the QoS route for a flow request, STE-QOSPF-Mix considers the effective available bandwidth instead of residual bandwidth of the path, which is more suitable in DiffServ MPLS-TP networks. The simulation results show that our proposed STE-QOSPF-Mix scheme outperforms the TE-QOSPF-Mix scheme in terms of packet loss ratio and end to end delay.

Keywords

DiffServ networks; delays; multiprotocol label switching; packet radio networks; quality of service; routing protocols; scheduling; DiffServ MPLS-TP networks; QoS; STE-QOSPF-Mix; WFQ algorithm; end to end delay; packet loss ratio; packet scheduling algorithms; routing; traffic engineering; DiffServ; MPLS-TP; OSPF; QoS Sensitive Routing; Scheduling Algorithms; WFQ;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Application and System Modeling (ICCASM), 2010 International Conference on

Conference_Location

Taiyuan

Print_ISBN

978-1-4244-7235-2

Electronic_ISBN

978-1-4244-7237-6

Type

conf

DOI

10.1109/ICCASM.2010.5620187

Filename

5620187