ABSTRACT
SUMMARY In this article, we first discuss QoS metrics of the data networks, followed by raising the challenging problems for the next-generation Internet with high-performance and high-quality. We then discuss how the WDM technology can be incorporated for resolving those problems. Several research issues for the IP over WDM networks are also identified.
key words: internet, IP (Internet Protocol), TCP (Transmission Control Protocol)’, congestion control, WDM (Wavelength Division Multiplexing), network dimensioning
