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Method and apparatus for driving a light emitting diode
An LED drive circuit includes a current source configured to electrically drive an LED. In one configuration, the current source forms part of an integrated...
System and method for client initiated authentication in a session
initiation protocol environment
A system for client initiated authentication comprises a user agent client and a user agent server. The user agent client is operable to communicate a session...
Hybrid interface synchronization method and driver-client model for high
A system and method for supporting a "hitless" switchover from an Active to a Standby processor uses a hybrid synchronization of interface states to allow...
Expediting port release in distributed networks
A method and device to expedite port release. The method includes receiving a call setup request for a port and then determining the current state of the port....
Method and apparatus of a location server for hierarchical WLAN systems
Methods, apparatuses, and systems directed to processing location and network data in a wireless network. According to one implementation of the present...
Supporting enhanced media communications in communications conferences
A method for supporting communications involves establishing a communications conference that includes multiple conference participants that each provide an...
Automated conference recording for missing conference participants
A conferencing system provides automated recording of conference media using a recording module. The recording module connects with conferences and records these...
Router-based monitoring of EF-on-EF jitter
A system for monitoring EF-on-EF jitter in a network node having an EP output queue into which EF packets are entered comprises a first counter that counts the...
In-band negotiation in single transcompression scenarios related
A network device has a processor to control message traffic between the network device and other devices in a network, a port to allow the network device to send...
Method of providing an encrypted multipoint VPN service
A method, apparatus and computer program product for providing an encrypted multipoint Virtual Private Network (VPN) service is presented. A first packet of a...
Enhanced multicast VLAN registration
A method and apparatus utilized in layer 2 access switches of an Ethernet ring-based network to bridge multicast packets between a multicast VLAN and a selected...
Method and apparatus for context-based prefix updates in border gateway
A method is disclosed for providing context-based routing table updates in Border Gateway Protocol (BGP) hosts. One or more contexts representing distinct...
System and method for discretionary multiplexing and compressing in a
A method for compressing information is provided that includes receiving a plurality of bits associated with a communications flow and electing whether to...
Module firmware recovery
A network access server (NAS) for use in a communications system utilized by users of telephone, fax, or modem calls, the NAS having more than one processor with...
Reporting power requirements of a powered device
In one embodiment, a powered device is configured to determine module population and the appropriate power requirements for installed modules. The power...
Fiber optic cabling management using hook and loop fabric
An apparatus and method for cable management via hook and loop type materials are provided. The apparatus includes a substrate and a tie wrap. In at least one...
System and methods for preventing denial of service attacks
Conventional countermeasures to Distributed Denial of Service (DDoS) attacks typically focus on practices and rules for organizing a robust, DDoS-resilient...
Method and apparatus for automatically re-validating multiple clients of
an authentication system
According to one embodiment of the invention, a session list identifying communication sessions relating to supplicants that access a computer network through an...
Methods and apparatus for enabling and disabling cable modem receiver
Methods and apparatus for disabling and enabling the receiver circuitry of a cable modem connected to a cable network headend are described. The cable network...
Method of debugging "active" unit using "non-intrusive source-level
debugger" on "standby" unit of high...
A method of debugging an active unit in a computer system having an active unit for routing computer connections and a standby unit configured to route computer...
Methods and apparatus for mobile IP dynamic home agent allocation
In accordance with one aspect of the invention, methods and apparatus for distributing a Mobile IP registration request to one of a plurality of Home Agents are...
Local network address management
A method for managing Internet Protocol (IP) addresses on a data communications network includes allocating multiple local IP address pools, requesting IP...
Method and apparatus for configuring nodes as masters or slaves
A node (101, FIG. 1), within a networked computer system (100), is capable of supporting communications with other nodes relating to operating multiple...
Optical channel power control in WDM networks
Information about optical amplifier ASE power is propagated down a link. Each amplifier along the link can learn of the ASE power at its input and take this...
System and method for seamless integration of CWDM and DWDM technologies
on a fiber optics infrastructure
The present invention provides a system and method for multiplexing DWDM channels on top existing CWDM infrastructure. An erbium-doped fiber amplifier amplifies...
Intelligent event notification processing and delivery at a network switch
According to the present invention, methods and apparatus are provided for intelligently processing of event notification or callhome messages at a network...
Forwarding packets in a gateway performing network address translation
A gateway device providing a search utility to determine both NAT information and forwarding information ("both pieces of information") in a single search...
Link fragment interleaving with fragmentation preceding queuing
A network router where fragmentation takes place prior to the queuing. After packets are classified, the low priority packets are fragmented and AAL5 and MLPPP...
Technique for coupling entities via virtual ports
A technique transfers data between geographically dispersed entities belonging to a virtual-local-area network (VLAN). According to the technique, geographically...
Techniques for exchanging DHCP information among DHCP relay agents and
A technique involves exchanging DHCP relay agent information with a DHCP server. In particular, the technique involves receiving a DHCP message en route from a...
Method of device service activation using a discovery mechanism
An Internet service device includes data and instructions to generate a user interface to subscribe to an Internet service, and to automatically discover one or...
Performing extended lookups on MAC-based tables including level 3
multicast group destination addresses
A method, system, and computer program product are presented to optimize OSI Level 2 switch forwarding of frames comprising IP addresses, 802.1 QinQ VLAN...
Method and system to determine and communicate the presence of a mobile
device in a predefined zone
A method and system to provide a notification is described. The system may comprise a first mobile device including a positioning component to determine when the...
System and method to detect non-native storage components to manage
configuration in a communications network
A system and method to detect non-native storage components to manage configuration in a communications network are disclosed. A stored key set is retrieved from...
Devices, software and methods for measuring packet loss burstiness to
determine quality of voice data...
Devices, software, and methods measure a burstiness of packet loss episodes in transmissions of voice data through networks. At least one burstiness statistic is...
Programmable packet parsing processor
The present invention provides a packet processing device and method. A parsing processor provides instruction-driven content inspection of network packets at...
System and method for protecting against failure of a TE-LSP tail-end node
A technique protects against failure of a tail-end node of a Traffic Engineering (TE) Label Switched Path (LSP) in a computer network. According to the...
Method and apparatus for detecting and fixing faults in an inline-power
capable ethernet system
The present disclosure provides for the sensing and detection of potential ground faults, and location of faulty ports. Circuitry is provided that utilizes the...
Network device providing multi-function status indicators
Systems and methods are provided to facilitate the display of status information associated with a network device using a plurality of multi-function status...
Ethernet to USB adapter
Dock for an electronic device
Methods and apparatus for facilitating network splicing
The invention provides systems and methods for providing compressed video data from multiple bit streams. The systems and methods apply a two-stage strategy. In...
System, method and apparatus for controlling a network post-demultiplexing
A system, method and apparatus for controlling a network post-demultiplexing function such as dejittering is described. The method includes accessing data...
System and method for power injection and out of band communications on
In one embodiment, in a power injection and out of band communications on a shared medium system, the system is configured to receive a power signal....
Methods and apparatus for scheduling entities using a primary scheduling
mechanism such as calendar scheduling...
Methods and apparatus are disclosed for scheduling entities in a system, such as, but not limited to a computer or communications system. Typically, calendar...
Techniques to support asymmetrical static/dynamic adjacency in routers
A static neighbor configured network device is configured with a static neighbor feature including a static neighbor list of network devices. The static neighbor...
Method and system for managing network traffic based on matching criteria
Methods and systems are provided for managing network traffic in a network device based on matching criteria. The method includes providing a plurality of...
Security system for network address translation systems
A system and method are disclosed for providing perform network address translation of network layer addresses of packets exchanged between nodes on a local...
Signal processing allocation using credit prediction
Digital signal processing resource allocation using a credit prediction scheme is described. The digital signal processing allocation method may include...
Method and apparatus for suppressing echo cancelling in a packet switched
A method, or corresponding apparatus, assumes a call is a Voice Band Data (VBD) call. The method disables a local echo canceller and transmits a tone that...