Abstract:
Storage space on one or more hard disks of a network caching appliance is divided into a plurality S of stripes. Each stripe is a physically contiguous section of the disk(s), and is made up of a plurality of sectors. Content, whether in the form of objects or otherwise (e.g., byte-cache stream information), is written to the stripes one at a time, and when the entire storage space has been written the stripes are recycled as a whole, one at a time. In the event of a cache hit, if the subject content is stored on an oldest D ones of the stripes, the subject content is rewritten to a currently written stripe, where 1≦D≦(S−1).
Abstract:
Partition configuration and creation mechanisms for network traffic management devices. In some implementations, the present invention enhances the predictability of partition hierarchies that use weighting values and fixed rate guarantees. In some implementations, the present invention includes a configuration interface that constrains the manner in which partitions can be configured to achieve predictable and efficient results. In some implementations, the present invention includes a partition creation and deletion layer that operates to dynamically create partitions based on one or more partition patterns.
Abstract:
Methods, apparatuses and systems that dynamically adjust the selection of differentiated network services for selected classes of traffic or network applications in response to changing network conditions or application performance levels.
Abstract:
An example embodiment of the invention provides a process for lockless processing of hierarchical bandwidth partitions configurations in multiple processor architectures. In one embodiment, the process runs in an NPU's data plane and receives a packet for a partition from a child partition through a work queue. The process determines a suggested target bandwidth rate for the receiving partition's child partitions, based in part on a count of active child partitions, if a predefined time interval has passed. The process adopts a target bandwidth rate for the receiving partition suggested by the receiving partition's parent partition, if the receiving partition is not a root partition and the predefined time interval has passed. The process then transmits the packet to the receiving partition's parent partition through the work queue, if the receiving partition is not a root partition. Otherwise, the process transmits the packet to a port.
Abstract:
Methods, apparatuses and systems directed to a network traffic synchronization mechanism facilitating the deployment of network devices in redundant network topologies. In certain embodiments, when a first network device directly receives network traffic, it copies the network traffic and transmits it to at least one partner network device. The partner network device processes the copied network traffic, just as if it had received it directly, but, in one embodiment, discards the traffic before forwarding it on to its destination. In one embodiment, the partner network devices are operative to exchange directly received network traffic. As a result, the present invention provides enhanced reliability and seamless failover. Each unit, for example, is ready at any time to take over for the other unit should a failure occur. As discussed below, the network traffic synchronization mechanism can be applied to a variety of network devices, such as firewalls, gateways, network routers, and bandwidth management devices.
Abstract:
Methods, apparatuses and systems facilitating remote deployment of network devices. Implementations of the present invention enable deployment workflows that reduce the costs associated with installing and configuring network devices on computer networks. Other implementations of the present invention enable an automated, remote deployment and configuration system for network devices.
Abstract:
A method and apparatus for using an application layer demarcation point are described. In one embodiment, the method comprises monitoring end-to-end performance of a network application at an application demarcation point in a network, and mediating between provider infrastructure and customer infrastructure based on results of monitoring.
Abstract:
Classification of network traffic based on conditions orthogonal to explicit attributes of packets in network traffic. In one implementation, classification of network traffic based on the behavior of one or more nodes associated with the network traffic. In one implementation, a mechanism is provided that allows for the creation of matching rule predicates that match to certain node behaviors of interest and cause the application of appropriate policies to the network traffic. In one implementation, the node behavior matching functionality can be combined to seamlessly operate in connection with other Layer 7 traffic classification mechanisms that operate on explicitly-presented attributes of the packets.
Abstract:
A system and method for providing file sharing using an instant messaging application are described herein. In one embodiment, a communication channel is established via an instant messaging application between a local device and a remote device over a network. In a file sharing window on the local device a representation of a file stored in the remote device is displayed. The file sharing window is associated with the instant messaging application and the file sharing window enables the local device to access the file stored in the remote device via the communication channel of the instant messaging application.
Abstract:
A data and control plane architecture for network devices. An example system architecture includes a network processing unit implementing one or more data plane operations, and a network device operably coupled to the network processing unit that implements a control plane. In a particular implementation, the network processing unit is configured to process network traffic according to a data plane configuration, and sample selected packets to the network device. The network device processes the sampled packets and adjusts the data plane configuration responsive to the sampled packets. In particular implementations, the control plane and data plane implement, a server-side triggered policy caching mechanism that allows for previous classification policy decisions made for previous data flows to be applied to subsequent new flows.