Title :
MPLS performance evaluation in backbone network
Author :
Liu, Guangyi ; Lin, Xiaokang
Author_Institution :
Dept. EE, Tsinghua Univ., Beijing, China
Abstract :
This paper introduces a new method to describe the lookup process of IP and multiprotocol label switching (MPLS) in backbone network. Using this method, we can get probability density functions respectively for IP lookup time in routing table and MPLS lookup time in forwarding table. A M/G/1/K queuing system is used to analyze the average packet delay. Relative MPLS performance compared to IP is evaluated. The evaluation results turns out to be that for well-designed MPLS equipments, original IP packet delay can be reduced by 30% or more and label merging technology has only great significance when network traffic load is very heavy.
Keywords :
Internet; delays; packet switching; probability; queueing theory; table lookup; telecommunication network routing; telecommunication traffic; transport protocols; IP lookup time; IP packet delay; Internet; M/G/1/K queuing system; MPLS lookup time; MPLS performance evaluation; average packet delay; backbone network; backbone routers; forwarding table; label merging technology; multiprotocol label switching; network traffic load; probability density functions; routing table; Data communication; Intelligent networks; Internet telephony; Multiprotocol label switching; Payloads; Probability distribution; Random variables; Spine; Telecommunication traffic; Traffic control;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.997036
