Saturday, May 26, 2012
Wide Area Network
Error 404--Not Found |
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:10.4.5 404 Not FoundThe server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent. If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address. |
Verizon to upgrade network, services
CARY, N.C. - Verizon Business is readying major changes to its network designed to result in a faster, more reliable system capable of supporting next-generation services for enterprises, such as Ethernet, VoIP and IP-based videoconferencing.
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This summer, the former MCI will implement pseudowires, a technique for encapsulating frame relay, ATM and other old data access circuits in Ethernet for transmission through an IP/MPLS core. This should reduce costs for enterprise customers as well as help them migrate to Ethernet, according to Fred Briggs, executive vice president of network operations and technology. Ethernet generally provides a lower cost per bit than traditional private line services, and consolidating access over one circuit should lower costs as well.
"Ethernet and Layer 2 switching are becoming the dominant [access] architecture," Briggs said last week during a conference with the media at Verizon Business' global network management facilities in Cary, N.C.
The carrier will be playing catch-up to at least one competitor, analysts say.
"Compared to Sprint, Verizon Business is a little late coming out with a Layer 2 migration technology to MPLS," says Lisa Pierce, an analyst at Forrester Research. "And it has quite a large installed base of frame relay customers. So this is a way to begin the migration."
Later this year, Verizon Business plans to boost bandwidth on up to three routes in its ultra-long-haul backbone to 40Gbps from 10Gbps. The upgrade was tested last year on a route between San Francisco and San Jose in which 10Gbps and 40Gbps wavelengths were supported on the same fiber carrying high-definition television videoconferences, gaming, music downloads, VoIP and hundreds of videostreams, Briggs said.
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