来源： 新华网 2004年03月19日
beijing, march 19 (xinhuanet) -- the china education and research
net 2 (cernet2), a backbone network based on ipv6, the next-generation
internet protocol, was put on trial friday.
the network now connects three chinese cities, beijing, shanghai
and guangzhou, with 6,000 km of optic fiber, so far the world's
largest backbone network totally based on ipv6, said wu jianping,
director of the cernet network center.
more than 100 universities, including beijing university and qinghua
(tsinghua) university, are the first users of the network,he said.
by the end of this year cernet2 is to cover 20 chinese cities, he
added.
the present internet, adopting ipv4, a 32-digit format protocol,has
had 70 percent of its ip addresses occupied and the rest will be
run out by 2005, according to experts.
under ipv6, a 128-digit format, the number of ip addresses willbe
virtually limitless, wu said.
the united states has a large part of ip addresses now and chinese
users have found few left for them, he added.
china started to test an ipv6 network in 1998 two years after the
united states launched its research project on next-generation internet.
"the next-generation internet will be faster, larger and safer
than the present one," wu said. "it will be 1,000 to 10,000
times faster than the present one."
china has an equal chance with the rest of the world to take part
in the development of next-generation internet considering its present
financial and technological capability, wu noted.
it has lagged behind in building the present internet. the country
built the first nationwide backbone network cernet in 1994.
the development of the next-generation internet will also shakeboth
hardware and software industry monopolies and give chances to new
companies, wu said. enditem.
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