Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The 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.

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Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The 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.
The power prognosticator

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The year of DSL - no kidding

By Tim Greene

2000 is the year of DSL.

No, really.

Never mind that 1998 and 1999 were also supposed to be the years that digital subscriber line went mainstream. Indications are DSL services that transform phone lines into broadband access links will become widely available this year.

Consider this: America Online now has deals with Ameritech, Bell Atlantic and SBC Communications to offer DSL services to AOL's Internet-access customers.

Separately, SBC has bet its future on the technology. It plans a $6 billion network upgrade that includes expanding its fiber network and linking customers to the fiber-over-DSL-enabled copper wires.

Upstart carriers are starting to offer new services over DSL lines that could not have been supported on traditional circuits. For example, carriers will offer a service that supports up to 15 telephone circuits as well as a broadband data stream on a DSL line for $400 per month.

In addition to local carriers' efforts, DSL specialists Covad, Northpoint and Rhythms NetConnections have agreements to wholesale DSL to national service providers such as AT&T, Frontier, Intermedia, PSINet, Qwest, Savvis and UUNET.

Modem makers also are ready to advance DSL. They are finally delivering DSL-lite modems that can be plugged into a DSL line without a visit from a service technician. That makes turning up DSL service easier and less expensive for everyone.

These DSL-lite modems are capable of 1.5M bit/sec downloads and will ship installed in PCs made by major computer vendors, such as Dell and Compaq. Customers won't have to buy a separate modem and hassle with installation.

The prices of DSL services have already dropped, in part because carriers don't need to temper demand with high prices any longer. The prices are also being kept in check by competition from cable modem services that offer broadband Internet access for less than $50 per month.

The bottom line is that in 2000, customers will be able to affordably buy DSL services and the equipment they need to support them.

And if it turns out that 2000 is not the year of DSL, then 2001 definitely will be.

No, really.

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Contact Senior Editor Tim Greene

Other recent articles by Greene

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More on SBC and DSL. Network World, 10/25/99.

What SBC's DSL announcement really means
Nolle's view. Network World, 11/15/99.

SBC lobbyists undercut by DSL rollout
RBOC's three-year Project Pronto appears to weaken call for DSL service deregulation. Network World, 11/1/99.

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