[UCI-Calit2] Upcoming Event: Research in Technologies of Hierarchical Optical Networks

Anna Lynn Spitzer aspitzer at rgs.uci.edu
Thu Mar 9 14:41:54 PST 2006


Title:                 Research in Technologies of Hierarchical Optical
Networks 

 

Speaker:           Xiaoping Zheng, professor, Tsinghua University,
Beiijing, China 

 

Time:                2 p.m.

 

Date:                Friday, March 10

 

Location:           Calit2 Building, Director's Conference Room, Fourth
Floor

 

Abstract:           Internet and related applications and services cause
the bandwidth of the transport network to increase dramatically. In
China, the growth rate is more than 200 percent each year since 2000,
and it is predicted by China Telecom that the throughput of each core
node in big cities in China will reach to 3~5Tbit/s by 2010. The optical
transport network (OTN) is expected to be more intelligent to provide
its clients with bandwidth on demand quickly, with traffic engineering
to adjust its logical topology according to the requirements of data
services, with perfect protection and restoration, and with
interoperability and scalability. In China, interoperability and
scalability can make the node number reach to thousands or more within a
big city like Beijing. Hierarchical structure is the best way to control
and manage the future OTN of this kind.

Technologies associated with this kind of hierarchical network - for
example, signaling, inter-domain routing and restoration - are discussed
in the talk.

A platform was built up to verify the flexibility of those technologies.
The platform is composed of three parts: hardware, control plane and
management plane. The hardware platform is constructed with switches,
computers and optical nodes. The control plane includes four basic
modules: HRP (Hierarchical Routing Protocol) module, LMP (Link
Management Protocol) module, RSVP-TE module and Management Agent, all
developed by Tsinghua University. A hierarchical management system was
developed for the purpose of the management of configuration,
performances and failure of the platform. 

By using the mentioned technologies, the following functions have been
realized on the platform: network topology automatic discovery, network
topology aggregation, SCs and SPCs, separation control of connection and
call, protection and restoration mechanisms and management of level and
domain.

            

 

Bio:                  Zheng obtained his bachelor's degree in 1986 from
Zhongshan Univeristy and his master's degree in 1994 from Southeast
University. Since earning his doctorate in 1998 from Tsinghua
University, he has been teaching and conducting research there in
optical transmission and communication networks. 

He participated all grand/key programs associated with all optical
networks supported by both NSFC and national high technology projects
(863) during the "9th five-year plan" (1995-2000); During the "10th
five-year plan" (2001-2005), he finished 863 key program "researches in
automatically switched optical network" and 863 grand program
"technologies in hierarchical routing for automatically switched optical
network." Four proposals were adopted by ITU-T G.8080, three patents
were approved, and he has obtained four awards and published or
co-published more than 40 papers. 

He is an editor of a strategic report of "wideband information network
with high performance," a special program in China during its 10th
five-year plan, and the member of expert-group of the program. He is
also the standing director of Optical Society of Beijing.

 

 

 

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