Performance Comparison of Multipath Routing Algorithms for TCP Traffic

Guangyi LIU  Shouyi YIN  Xiaokang LIN  

IEICE TRANSACTIONS on Communications   Vol.E86-B   No.10   pp.3144-3146
Publication Date: 2003/10/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
traffic engineering,  multipath routing,  TCP,  fairness,  

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Multipath is a big problem for TCP traffic in traffic engineering. To solve it, hash functions such as CRC-16 are usually applied over source and destination address segments in packet headers. Through simulations and performance comparison of several multipath algorithms, it is found out that high network utilization achieved by using hash functions is at the expense of low fairness among coexisting TCP flows. It is also illustrated that packet size has significant influence on performance.