Network World
Friday, May 25, 2012
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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.

Clear Choice Test Return to main test page: Cisco's virtual switch smashes throughput records

Catalyst 6509 performance metrics

Exclusive Tests Shows Cisco’s Management Blade Setting Records for Recovery Times and Throughput

By David Newman, Network World Lab Alliance

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Virtual Switching Reduces Complexity, Boosts Capacity
The “active/passive” redundancy model in most network designs doubles port and link requirements (at left). The redundancy protocols that must be configured include spanning tree or rapid spanning tree (STP and RSTP) at layer 2 and hot standby routing protocol (HSRP) and virtual routing redundancy protocol (VRRP) at layer 3. In contrast, Cisco’s virtual switching system creates an “active/active” design by using all available link and switch ports (at right). Other devices still use multiple physical links to connect to a virtual switch for redundancy, but now they use a Multichassis EtherChannel (MEC) in which all links are active until a failure occurs.