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Technology Stocks : Global Crossing - GX (formerly GBLX)
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To: Frank A. Coluccio who wrote (3082)11/4/1999 6:31:00 PM
From: Mr.Fun  Read Replies (3) of 15615
 
Frank,

The Lucent NX-64000 does, in fact, map IP directly to SONET at OC-192 speeds. In GBLX's trial, they ran live traffic at OC-192 between Chicago and Cleveland. I spoke with some of the Nexabit engineers in Geneva, and I gather the following:

1) Nexabit has solved a fundamental bottleneck in shared memory architecture that allows them to read and write to and from a huge memory block at a fixed 40 microsecond delay, regardless of packet size, including a full table look-up. This is apparently a huge breakthrough. The Nexabit guys actually claim that they can do this not only at OC192, but also at OC768 (40Gbps) making the box scalable to 6.4 Tbps once "the optics catch up with the switch design"

2) The routing software (BGP4, OSPF, RIP, IS-IS) was written by the team that wrote Wellfleet's (Bay) original router code. They quit en masse in 1997 to join the fledgeling Nexabit. I hear from folks at T that the code is clean and bug-compatible with Cisco.
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