Cisco Technology, Inc.

Martin A Kagan

Martin Cieslak

James A Aviani, Jr

James Anthony Aviani, Jr

Danny Kwok

Gurumukh Singh Tiwana

Stewart L Forster

Methods and apparatus are described for routing data traffic in a network having a plurality of layers including physical, data link, and network layers. The data traffic is received and one of a plurality of routing options for the data traffic is selected with reference to information outside of the physical, data link, and network layers. The data traffic is then routed according to the selected routing option.

Network cache-based content routing

A method for routing a data request received by a caching system is described. The caching system includes a router and a cache, and the data request identifies a source platform, a destination platform, and requested data. Where the source and destination platforms correspond to an entry in a list automatically generated by the caching system, the data request is transmitted without determining whether the requested data are stored in the cache.

Methods and apparatus for redirecting network cache traffic

Methods and apparatus are described for intelligently assigning a portion of a cluster's traffic (e.g., buckets) to a cache system to minimize overloading of such cache system. In general terms, when a new cache system enters a cache cluster and/or starts up, the new cache system's full bucket allocation is not immediately assigned to the new cache system. Instead, only a portion of the full bucket allocation is initially assigned to the new cache system. In one embodiment, the new cache system's bucket assignment is gradually increased until the cache system is handling it's full bucket allocation or it becomes overloaded. The cache system's load is also checked periodically to determine whether it has become overloaded. When the cache system becomes overloaded, buckets are immediately shed from the cache system. In sum, the new cache system's load is adjusted until it is handling an optimum number of buckets.

Methods and apparatus slow-starting a web cache system

Methods and apparatus are described for caching objects in a network cache. At least two memory queues are provided for storing the objects. Newly cached objects are stored in a first memory queue. Only selected objects are stored in a second memory queue, the selected objects having been accessed at least once while in the first memory queue.

Methods and apparatus for improving content quality in web caching systems

Methods and apparatus are described for controlling packet flow to a cache system is disclosed. A packet flow intended for a first destination is received into the cache system. When the packet flow indicates the start of the packet flow or when the packet flow is identified as being owned by the cache system, the packet flow is processed within the cache system. When the packet flow does not indicate the start of the packet flow and the packet flow is not identified as being owned by the cache system, the packet flow is directed back to the first destination.

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Palo Alto, CA, United States of America

Martin A Kagan