Abstract: A system of redirecting encrypted requests for content at a web site includes the steps of receiving, at a first web site, data enabling secure communication with a client, receiving, at the first web site, a request for content from the client, identifying an alternate web site to service the request from the client and forwarding a communication associated with the request to the alternate web site including forwarding the data enabling secure communication to the alternative web site. Such an arrangement allows a web site to communicate with a client using encrypted packets without having previously set up a tunneled connection, thereby aiding in disaster recovery and providing a facilitating client proximity detection when traffic is encrypted.

Abstract: A multi-stratum multi-timescale control for self-governing networks provides automatic adaptation to temporal and spatial traffic changes and to network state changes. Microsecond timescale reacting through the routing function, a facet of the lowest stratum, allows a source node to choose the best available route from a sorted list of routes, and to collect information on the state of these routes. Millisecond timescale correcting through the resource allocation function, a facet of the intermediate stratum, allows the network to correct resource allocations based on requirements calculated by the routing function. Long-term provisioning through the provisioning function at the higher stratum allows the network to recommend resource augmentations, based on requirements reported by the resource allocation function. The control is implemented in the network through coordination across edge node controllers, core node controllers, and network controllers.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: In a networked environment, where multiple Internet Service Providers and multi-vendor equipment are involved in e-Business services and applications offering, the risk of overloading the Internet devices are real and security management is a challenge. Internet device traffic overloads could result from spoof attacks, (Denial-of-Service (DoS) or Distributed DoS (DDoS) attacks), device failures, special events, or widespread loads above engineered levels. To solve the problem of Internet security management for integrated optical and wireless devices, a new apparatus and functions running on IP devices are defined in this invention. Each Internet device includes counters and thresholding feature to manage the security attacks and prevent failure of the device being attacked.

Abstract: An improved rework nozzle includes an open housing which when lowered onto the surface of a board forms a closed cavity. The housing includes venting means which expend air that is input to the cavity, thereby using flow through concepts to maintain a uniform temperature in the cavity. The housing also positioning mechanisms for both aligning a the housing and a captive integrated circuit to a desired footprint on the circuit board, and for limiting movement of the integrated circuit during rework.

Abstract: A routing device for forwarding data packets in a communication system includes a set of routing processors at least one interface that receives and transmits data packets and a routing table manager that maintains a forwarding table of routes provided by the set of routing processors. Each routing processor is associated with a routing protocol that determines a set of routes. The routing device may also include a set of fast forward engines that forward a data packet based on the forwarding table. The routing table manager may be implemented on a separate processor than each routing processor.

Abstract: A data communication network for DiffServ communications includes a customized Java socket factory added to clients connected to a data communication network having a DiffServ-enabled edge router. When an application running on a client system wishes to make a remote procedure call to a remote server system on another network, it makes a call to an RMI stub which invokes an RMI transport layer having the custom socket factory to generate a socket used in the RMI call. The custom socket factory detects when a high priority RMI call is being made and can determine the identity of the calling procedure as well. The socket factory makes a side channel communication to the edge router to provide this information to the edge router, which then makes use of this data when performing DiffServ classification for packets transmitted during the course of the call.

Abstract: Communities attributes are inserted into a packet in a predetermined sequence. A receiving device extrapolates policy information from the sequence of communities attributes for making intelligent routing decisions.

Abstract: An apparatus and method for managing multiple traffic redundancy mechanisms includes a resource manager for managing the multiple redundancy mechanisms for bridging traffic between a working port and a protection port, and uses an agent for the working port in order to maintain routes associated with the working port even after a failure occurs that affects communication over the working port. The resource manager creates a protection group including the working port and the protection port. A traffic bridge is established between the working port and the protection port.

Abstract: A system of redirecting encrypted requests for content at a web site includes the steps of receiving, at a first web site, data enabling secure communication with a client, receiving, at the first web site, a request for content from the client, identifying an alternate web site to service the request from the client and forwarding a communication associated with the request to the alternate web site including forwarding the data enabling secure communication to the alternative web site. Such an arrangement allows a web site to communicate with a client using encrypted packets without having previously set up a tunneled connection, thereby aiding in disaster recovery and providing a facilitating client proximity detection when traffic is encrypted.

Abstract: Rather than restricting a stream of data to a single channel within a multi-channel link between a source node and a core node, each channel is divided into time slots and the stream of data is distributed among these time slots in several channels. However, to ease the management of switching the stream of data at the core node, simultaneous time slots in each channel may be arranged into “stripes,” such that a particular stripe may only include data segments having a common destination. Switching these stripes of data at the core node requires that the source of such a stripe arrange the frame according to a frame structure provided by the core node. Advantageously, where the frame is striped across an entire link, the present invention provides for a variation on link switching that approaches the topological reach of TDM switching while maintaining relatively straightforward operation at the core node.

Abstract: A method of interleaving time-critical data packets and delay-tolerant data packets on a shared channel emanating from a control port of a switching node permits a strict time requirement for transmission of time-critical data packets to be met. A control circuit of the switching node stores a local time, an indication of a time required to transfer a delay-tolerant data packet waiting to be transferred, a comparator and a selector to control transfer of the time-critical and delay tolerant data packets.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: A personal communications portal maintains presence information about a user who may be available at one or more terminal devices on one or more access networks comprising a multiple access network. The access networks may operate in different transmission modes and may utilize different signaling formats (text, graphics, voice, video, etc.). A watched party specifies preferences as to who may contact him, at what times, on what kind of network and device. A watching party requesting to contact the watched party may be given direct contact information for contacting the user, may be given indirect contact information for contacting the user without being informed of the watched party's whereabouts, may be placed directly in communication with the watched party, or may forward a message to the user.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.

Abstract: A method and apparatus for scheduling the transfer of data bursts in a network comprising electronic edge nodes interconnected by bufferless core nodes are disclosed. Each edge node comprises a source node and a sink node, and each core node comprises several bufferless space switches operated in parallel. Each source node is connected to at least one core node by an upstream link that includes multiple upstream channels. Each core node is connected to at least one sink node by a downstream link that includes multiple downstream channels. Any of the space switches can have either an electronic fabric or a photonic fabric. Each space switch has a master controller, and one of the master controllers in a core node is designed to function as a core-node controller in addition to its function as a master controller. Each master controller has a burst scheduler operable to compute a schedule for the transfer of data bursts, received from source nodes, to destination sink nodes.

Abstract: In a wide-coverage network comprising electronic edge nodes interconnected by bufferless core nodes, where each edge node comprises a source node and a sink node, both sharing an edge-node controller and having means for data storage and managing data buffers, the transfer of bursts from source nodes to sink nodes via the core nodes requires precise time coordination to prevent contention at the bufferless core nodes. A core node preferably comprises a plurality of optical switches each of which may switch entire channels or individual bursts. Each source node has a time counter and each core node has at least one time counter. All time counters have the same period and time-coordination can be realized through an exchange of time-counter readings between each source node and its adjacent core nodes. The time-counter readings are carried in-band, alongside payload data bursts destined to sink nodes, and each must be timed to arrive at a corresponding core node during a designated time interval.

Abstract: An optical channel switch comprising independent optical space switches interconnects electronic data-switch modules to form a high-capacity wide-coverage network. The optical channel switch connects incoming wavelength-division-multiplexed (WDM) links each originating from a data-switch module to outgoing WDM links each terminating in a data-switch module. The optical space switches are of equal dimension, each having the same number of dual ports (input-output ports). The channels of incoming WDM links are assigned to the input ports of the space switches and the output ports of the space switches are assigned to channels of the outgoing WDM links in a manner which permits a switched path from any data-switch module to any other data-switch module even when the number of data-switch modules substantially exceeds the number of dual ports per space switch. A method of reconfiguring the channel switch in response to varying traffic demand is also disclosed.