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Variable length coding method and apparatus for video compression
A method and an apparatus to encode a series of quantized coefficients of a transform of a block of image data. The method includes forming modes for each...
System for synchronizing circuitry in an access network
A master Timestamp Synchronization Circuit (TSC) in a Cable Modem Termination System (CMTS) estimates a master timestamp value for an upcoming time reference....
Minimum bandwidth guarantee for cross-point buffer switch
A method and system for use in data communications. The method and system substantially ensure that actual data transmission per unit time from at least one...
Method and apparatus for providing thermal management in an electronic
An electronic system includes a chassis, an air flow distribution assembly having a first set of baffles disposed within an intake volume of the chassis and a...
Method and apparatus for negotiating power between power sourcing
equipment and powerable devices
The present invention provides a power negotiation protocol that enables PDs and PSEs to negotiate the amount of inline power that a PD consumes and the...
Method and apparatus for verifying data timeliness with time-based derived
A method of verifying data timeliness with time-based derived cryptographic keys is disclosed. A master key is received. Based on both the master key and a...
Dynamic connection service category changes
An apparatus dynamically changes a connection service category for a soft permanent virtual circuit (SPVC). The apparatus includes a first interface, a second...
Network traffic shaping using time-based queues
A time-based buffering system buffers data based upon how long the data should be held in order to comply with a traffic shaping policy. The data's source or...
Centralized memory based packet switching system and method
A packet switching system and method are disclosed. The system includes a plurality of input and output ports and an input buffer at each of the input ports. The...
IPv4-IPv6 FTP application level gateway
Disclosed are methods and apparatus for handling FTP (file transfer protocol) control packets. In general terms, mechanisms are provided for facilitating FTP...
Configuration of enterprise gateways
A method for configuring enterprise gateways includes determining an enterprise internet protocol (IP) address that identifies the interface of an enterprise...
System and method for synchronizing link state databases in a network
A method for communicating packets in a network environment is provided that includes communicating, by a first network element, a first summary update to a...
Apparatus and method for improved Fibre Channel oversubscription over
Oversubscription of Fibre Channel links over a transport network is provided. A transport interface according to the present invention may maintain a small...
Maintaining counters and updating a secondary counter storage
Disclosed are, inter alia, methods, apparatus, data structures, computer-readable media, and mechanisms for maintaining counters, such as in, but not limited to...
Determining the time of arrival of a wireless signal
In an example embodiment, a time of arrival circuit coupled to a wireless transceiver configured to determine a time of arrival of a wireless signal. The time of...
Providing airflow to an electronics enclosure while providing protection
and shielding against electromagnetic...
Methods and apparatus for shielding an object from relative high electromagnetic radio frequencies while allowing airflow to pass to and from the object are...
Wireless notebook adapter
Method and apparatus for generating and using nested encapsulation data
A method and apparatus are provided for processing a data packet. Policy data that specifies nested encapsulation may be identified based upon one or more...
Enabling cryptographic features in a cryptographic device using MAC
A method and system are disclosed that provide a significant improvement for securely selecting a subset of available cryptographic functionality in a system....
ISCSI block cache and synchronization technique for WAN edge device
A technique is described for facilitating block level access operations to be performed at a remote volume via a wide area network (WAN). The block level access...
Arrangement in an IP node for preserving security-based sequences by
ordering IP packets according to quality...
A router has at least one outbound interface configured for establishing multiple IP-based secure connections (i.e., tunnels) with respective destinations based...
Preventing HTTP server attacks
A method for preventing denial of service attacks against Hypertext Transfer Protocol (HTTP) servers includes receiving a HTTP request from a subscriber using a...
Method and apparatus for supporting communications between nodes operating
in a master-slave configuration
A node (101, FIG. 1), within a networked computer system (100), is capable of supporting communications with other nodes relating to operating multiple...
Technique for notifying EIGRP neighbors when destroying adjacencies in a
A technique efficiently notifies EIGRP neighbors when destroying adjacencies in a computer network. A goodbye notification packet is provided that enables an...
System and method for communicating data in a network environment
A method for communicating data in a network environment is provided that includes receiving one or more packets for establishing a communication session in a...
Automatic side selection in double-ring topologies
Connecting a new node to a double ring network or establishing a new network having a double ring network is greatly simplified by automatic mapping of logical...
Method and apparatus for detecting and recovering from faults associated
with transport protocol connections...
Approaches to recover from faults associated with multi-homed clients having transport protocol connections that pass through network address translators are...
Cable restraint and radius control apparatus
A cable management apparatus includes a cable restraint adapted to provide strain relief to a cable and a radial guide adapted to provide a desired bend radius...
Method and apparatus for integrated provisioning of a network device with
configuration information and...
According to one aspect, a provisioning server comprises a configuration module that configures a network device and an identification certification module that...
Method and apparatus for redirecting the boot operations of one or more
The boot operations of one or more systems may be redirected. For example, a master boot processor may configure a slave boot processor to boot over a...
Dynamic IP addressing and quality of service assurance
A method for maintaining Quality of Service for communication network subscribers regardless of their log-on location is disclosed. For one embodiment the...
Method and system for diverse route computation
A first route is associated with a first channel of two or more channels in a first dense wavelength division multiplex (DWDM) link. A second route is associated...
Arrangement for controlling SS7 message routing by selecting a signaling
link selection field based on an...
An originating node is configured for generating a route management signaling message having a signaling link selection (SLS) value that is selected by the...
Method and apparatus for limiting VPNv4 prefixes per VPN in an
inter-autonomous system environment
A method, apparatus and computer program product for limiting Virtual Private Network (VPNv4) prefixes per VPN in an inter-autonomous system environment are...
Scheduling system and method for multi-level class hierarchy
A scheduling method for a multi-level class hierarchy includes inserting all queues containing at least one packet in a first scheduler and inserting into a...
Method and apparatus for reliable multicast distribution
A system for reliable multicast distribution includes a primary content engine and a backup content engine sender. The primary content engine sender sends out a...
Multicast system for forwarding desired multicast packets in a computer
A method and apparatus for a downstream router to inform an upstream router by use of packets of a new router command protocol that the upstream router is to...
Latency reduction in network data transfer operations
Apparatus, method and computer readable medium are provided for data transfer wherein an initiator driver in a computing system performs a first write operation...
Eliminating multicast/broadcast collisions in a wireless local area
In an access point operating in a wireless local area network, a method is disclosed for assisting a radio manager to manage a radio environment without location...
System and method for using a plurality of processors to support a media
A system for using a plurality of processors to support a media conference includes a mixing processor and a first media transformation processor coupled to the...
Wireless USB adapter
Wireless USB adapter
Wireless network adapter
Method and apparatus providing interoperation of execution images of
A method is disclosed for providing interoperation of a first execution image of a first version and a second execution image of a second version. A...
Method and apparatus for distributing and updating private keys of
multicast group managers using directory...
An approach for establishing secure multicast communication among multiple multicast proxy service nodes is disclosed. The multicast proxy service nodes, which...
Method and apparatus for efficient SPVC destination endpoint address
A method for automatically reconfiguring a soft permanent virtual circuit (SPVC) source endpoint in a PNNI ATM network, in response to an address change at a...
System and method for language translation within software applications
A server application program is disclosed that runs on a server and provides a client with multilingual support, but does not have a multilingual database on the...
System and method for providing access points to assist in a handoff
decision in a wireless environment
According to a particular embodiment, a method for assisting in a handoff is provided that includes receiving signaling from one or more access points, which may...
Mechanism to select the physical media type connector in network devices
A network device comprises first and second transceivers configured to aid communication between a plurality of networked devices; first and second communication...
Packet routing and switching device
A method for routing and switching data packets from one or more incoming links to one or more outgoing links of a router. The method comprises receiving a data...