Other

Aprisma Management Technologies, Inc.

Kraasten Bros. Fund B.v. LLC

Cisco Technology, Inc.

Cabletron Systems, Inc.

Sonus Networks, Inc.

Oliver C Ibe

Jianyu Zeng

Roger H Dev

Lundy M Lewis

Steven Jay Blumenthal

Eric S Rustici

Walter P Scott

Steve Sycamore

Rajiv Malik

Prasan Kaikini

Suzanne Thebaut

Ajay Aggarwal

Todd Wohlers

Wassim Matragi

Ahmed Abdelal

Vick Vaishnavi

Rohinton Gonda

A scheme that enables seamless roaming between the WLAN and the cellular carrier network by enabling a user that originates a call in the WLAN and happens to go outside the range of the WLAN to automatically switch over to the cellular carrier network without losing connection with the other party. This solution assumes that the mobile device has the capability to operate in at least two modes that include the WLAN mode and one of the cellular carrier modes, such as the GSM, IS-95 CDMA, IS-136 TDMA, and iDEN.

Method of seamless roaming between wireless local area networks and cellular carrier networks

Method of seamless roaming between wireless local links and cellular carrier networks

Described are methods and apparatuses, including computer program products, for controlling server resources. An occupancy value of a buffer and a first utilization value of a first processor are measured. The buffer is configured to store one or more requests for service from at least a first client. The first processor is configured to receive and process the one or more requests from the buffer. A buffer size value is determined based on a processor throughput calculation, and a first service request limit for the first client is determined based on the occupancy value, the first utilization value, and the buffer size value.

Hybrid server overload control scheme for maximizing server throughput

A method and associated system enables seamless data roaming and handoff between the wireless local area network (WLAN) and the wireless wide-area network (WWAN). This method enables a mobile device to originate a data connection in the WLAN and have this data connection be automatically handed off to the WWAN without losing the connection when the user goes outside the range of the WLAN. Similarly, it enables a mobile device to originate a data connection in the WWAN and have this data connection be automatically handed off to the WLAN without losing the connection when the user loses the signal of the WWAN. This solution assumes that the user has subscribed to data services from a cellular carrier that will authenticate the user before permitting the handoff.

Data handoff method between wireless local area network and wireless wide area network

A mechanism to permit the cryptographic authentication of a mobile device in the cellular carrier's network when the device is present in the 802.11 network, wireless LAN, served by a Cellular Controller and not connected directly to the cellular carrier's network via a radio link is disclosed. The Cellular Controller acts as a proxy for the mobile device when the device is in a building served by an 802.11 wireless LAN. The solutions features the separation of a mobile device's radio function from its ANSI-41 authentication mechanism to permit the proxy function to work and to not have to duplicate the ANSI-41 authentication data and CAVE algorithm.

Authentication of mobile devices via proxy device

According to an embodiment of the present invention, a method is provided for partitioning a network, comprising modeling the network as a graph comprising nodes which represent network devices, and edges which represent links between the devices, and automatically partitioning the graph into domains. One embodiment of the method includes identifying a number of anchor nodes in the graph and partitioning the domains around the anchor nodes such that each domain contains only one anchor node. Another embodiment of the method includes partitioning a graph without anchor nodes into a number of domains, and assigning controllers to each of the domains. Preferably, the method further includes assigning a weight to each node in the graph, and balancing the partitions as a function of the weight of each node in a respective partition.

Method for automatic partitioning of node-weighted, edge-constrained graphs

Method and apparatus for determining an enforceable policy applicable to one or more network devices. The method includes attaching one or more rule elements to one or more domain elements to create policies, the domain elements representing network devices and groups of network devices, and the rule elements defining actions, a method for determining whether a conflict exists between the polices, and a method for resolving the conflicts to produce one or more enforceable policies.

Policy management and conflict resolution in computer networks

Growing community of inventors

Andover, MA, United States of America

Oliver C Ibe