摘要:
In computing environments having multiple computers, where such computers may comprise virtual machines, events are logged in association with corresponding activity identifiers. When a data packet associated with an activity is transferred to a destination machine, the activity identifier corresponding to the activity is transferred along with the data packet and used by the destination machine when logging its events. This allows events from the two machines to be correlated according to the activities to which they pertain.
摘要:
A Distributed Routing Table (DRT) mesh can comprise two or more nodes, each of which maintains its own routing table that represents some or all of the overall routing knowledge of the DRT mesh. Each node can be comprised of modular components that can perform various defined functions such that the features and abilities of the node can be customized by an application based on which modular components are instantiated. A routing table management module can maintain individual routing tables at each node, and can ensure that only entries that are close to the node, in a network topology sense, are maintained in the routing table. In addition, a security module can verify received messages based on an agreed-upon root certificate.
摘要:
A service for facilitating a determination of path quality between a first endpoint node and a second endpoint node in a network of nodes is provided. Path quality information is aggregated from across network internet service providers (ISPs), giving authorized endpoints access to path quality information for specified path segments of a path to another endpoint. Path quality information includes one or more metrics that measure available bandwidth, loss rate and/or latency.
摘要:
A method and system for increasing ease-of-use and bandwidth utilization in a wireless device capable of accessing a communication network is disclosed. The present invention uses the wireless device to send information about the environment to a server on the communication network. In response, the wireless device receives identifiers from the server of the web sites most likely to be requested by a user of the wireless device in that environment. In a further aspect of the present invention, the wireless device may also pre-fetch contents from the identified web sites in times when bandwidth is not in use to further speed responsiveness of the device.
摘要:
The present invention provides methods, systems, and computer program instructions for providing location-independent packet routing and secure access in a wireless networking environment (such as that encountered within a building), enabling client devices to travel seamlessly within the environment. Each client device uses a constant address. An address translation process that is transparent to the client and server is automatically performed as the device roams through the environment, enabling efficient client migration from one supporting access point to another. The secure access techniques provide user-centric authentication and allow policy-driven packet filtering, while taking advantage of encryption capabilities that are built in to the hardware at each endpoint.
摘要:
The present invention provides methods, systems, and computer program instructions for providing location-independent packet routing and secure access in a wireless networking environment (such as that encountered within a building), enabling client devices to travel seamlessly within the environment. Each client device uses a constant address. An address translation process that is transparent to the client and server is automatically performed as the device roams through the environment, enabling efficient client migration from one supporting access point to another. The secure access techniques provide user-centric authentication and allow policy-driven packet filtering, while taking advantage of encryption capabilities that are built in to the hardware at each endpoint.
摘要:
The present invention provides methods, systems, and computer program instructions for enabling a variety of devices, particularly low-power hand-held devices, to travel seamlessly through a networking environment such as that encountered within a building by establishing connectivity to a plurality of network access points. The illusion of seamless network connectivity is provided by having these access points coordinate with a core server to perform user authentication, device address assignment, and handoff services.
摘要:
Methods, systems and computer program products are provided which encrypt a document by dividing the document into at least a first portion having a first security level and a second portion having a second security level. The document is then encrypted utilizing at least two encryption keys so as to encrypt the first portion of the document with a first of the at least two encryption keys and so as to encrypt the second portion of the document with a second of the at least two encryption keys. Preferably, the document is sequentially encrypted utilizing at least two encryption keys so as to encrypt the first portion of the document with a first of the at least two encryption keys and so as to encrypt the first and the second portion of the document with a second of the at least two encryption keys. An encrypted document utilizing the encryption techniques of the present invention is also provided as are methods, systems and computer program products for decrypting such documents.
摘要:
The overall management task required to determine data dissemination in multi-user applications is reduced herein. The management task required at any one host in the multi-user application is also limited. In addition, the number of simultaneous connections that any one participating host must support in a large multi-user application is reduced. Each user is assigned to a single management partition.