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Optica Publishing Group
  • Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference
  • Technical Digest (CD) (Optica Publishing Group, 2006),
  • paper NWF4

Packet and TDM Transport Integration: How, When and Why?

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Abstract

There is constant evolution in networks, but occasionally larger shifts in technology occur due to changes in services and underlying economics. The Next Generation Transport Network is the next fundamental change in transport since the mass deployment of SONET. NG Transport is the integration of TDM, Packet and WDM transport into a single comprehensive solution. As access bandwidth explodes, the needs for rigid TDM channelized transport are reduced. As services move to packet routers, with low cost Ethernet interfaces, the need for packet transport increases. And with the desire for dynamic and flexible infrastructure, the need for metropolitan WDM is growing. However the characteristic needs of transport networks - reliability, strong OAM and lower costs than service switches - remain. This paper will demonstrate the needs and the value of NG Transport and will introduce the concept of the Optical Transport Platform (OTP). The OTP provides aggregation of packet and TDM flows to the metro core network for edge applications, and the combined values of a flexible DWDM platform with ROADM technology, integrated TDM grooming, and introduces the new concept of packet transport. The interworking between these technologies provides an effective transition platform from today’s network to the NG transport network while providing the capabilities needed for long term network growth.

© 2006 Optical Society of America

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