Abstract
The reemergence of metropolitan area networks (MANs) is being stimulated by
the continued growth of the Internet. Here we introduce the likely role that optical
burst switching (OBS) will play in the development of 10-Gbit Ethernet (10GbE)
metropolitan networks. Although the synchronous optical network (SONET) is being
proposed to provide wide-area connectivity for 10GbE MANs, its synchronous
time-division multiplexing (TDM) nature renders it inefficient for data-centric
connections. OBS, however, provides a better sharing of network resources and when
coupled with generalized multiprotocol label switching (GMPLS) provides a robust and
more efficient transport for Ethernet services.
© 2002 Optical Society of America
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