摘要:
A method, system, peers and computer programs determine validity of path information corresponding to a transmission path between a monitoring peer and a monitored peer in a data communication network. The monitoring peer monitors unsolicited data received from the monitored peer via the reverse transmission path identified by the path information and further monitors any data sent to the monitored peer using the path information. Validity tests are performed by the monitoring peer for the path information to restore complete confidence in its validity in a way where the rate of testing is proportional to the rate of receiving unsolicited data from the monitored peer and to the rate of sending data to the monitored peer. The monitoring peer invalidates the path information if the validity test fails.
摘要:
According to the present invention, traffic control in an IP based network is provided. For this purpose, traffic situation in the network is measured, and the traffic flow is controlled on the basis of the measured traffic situation. Moreover, an operator may define rules for different measured situations, and the traffic flow is controlled on the basis of these rules.
摘要:
A system by which paging can be performed to support global reachability in a heterogeneous multi-access environment independently on a particular radio access network architecture. Various embodiments of the present invention provide methods for performing generic paging in heterogeneous multi-access networks based on incoming traffic and its characteristics, producing a topology-based coverage map of dynamic access networks. The framework of the various embodiments of the present invention supports the use of user preferences in the selective paging process; i.e. the most optimal radio access is activated according to user preferences and the current networking environment.
摘要:
A method for encapsulation of labeled datagrams over serial communications links, and a method for extracting the datagrams on the receiving end of the link. The encapsulation method includes adding a label and a label error correction to the front of a datagram, the label error correction being derived using the label and adding a cyclic redundancy check at a trailing end of the datagram, the cyclic redundancy check being derived using the datagram. The end of a packet encapsulating the datagram with a label, a label error correction field and a cyclic redundancy check field is identified by analyzing incoming bits for a packet until a pattern of bits is detected that matches a number of previous bits of the packet coded with a predetermined coding formula and identifying the end of the packet based upon the detection of the match and the predetermined coding formula. The end of the current frame may be identified by coding incoming bits according to the cyclic redundancy check polynomial to produce a calculated cyclic redundancy check until the calculated cyclic redundancy check matches the cyclic redundancy check field. In addition, or alternatively, the end of the previous frame may be identified by coding incoming bits according to the label error correction polynomial to produce a calculated label error correction until the label error correction matches the label error correction field.
摘要:
A system by which paging can be performed to support global reachability in a heterogeneous multi-access environment independently on a particular radio access network architecture. Various embodiments of the present invention provide methods for performing generic paging in heterogeneous multi-access networks based on incoming traffic and its characteristics, producing a topology-based coverage map of dynamic access networks. The framework of the various embodiments of the present invention supports the use of user preferences in the selective paging process; i.e. the most optimal radio access is activated according to user preferences and the current networking environment.
摘要:
Providing access for a mobile node to a communication network comprising multiple access networks operating according to different access technologies, wherein said communication network is configured to communicate by means of different access technologies with said mobile node, comprising, upon an access request of the mobile node at a first access network, preparing the access networks, other than the first one, for providing access for the mobile node in case of a handover of the mobile node to one of these other access networks.
摘要:
A method of for controlling the admission of a connection comprising; a) providing a plurality of classes; b) reserving for at least one class a portion of a bandwidth; c) determining usage related information by at least one of the classes to which a respective portion of said bandwidth has been reserved; and d) controlling admission of at least one class, different to the at least one class for which usage has been determined, said admission taking into account said determined usage related information.
摘要:
A method for automated selection of an access interface and a source address for communication between a communication device and a network node in a communication system, comprising: executing a first selection routine for considering at least one first policy on access interface allocation; and executing a second selection routine for considering at least one second policy on source address allocation; wherein at least one first output of the first selection routine is inputted into the second selection routine or at least one second output of the second selection routine is inputted into the first selection routine.
摘要:
A method for automated selection of an access interface and a source address for communication between a communication device and a network node in a communication system, comprising: executing a first selection routine for considering at least one first policy on access interface allocation; and executing a second selection routine for considering at least one second policy on source address allocation; wherein at least one first output of the first selection routine is inputted into the second selection routine or at least one second output of the second selection routine is inputted into the first selection routine.
摘要:
A differentiated service network having a plurality of routers. An operating condition such as stability may be determined at a first router. An indication of the operating condition may be propagated from a first router to a second router such as an edge router. Based on the indication of the operating condition, one or more parameters of a constraint may be adjusted. The indication may be a signal corresponding to a network traffic status.