Abstract: The present invention provides a method and a device for implementing a V-Switch. Through setting up a V-Switch correlation with respect to at least two VLAN tags, a DRE performs a V-Switch transmission on an Ethernet frame received according to the V-Switch correlation with respect to at least two VLAN tags. The invention can expand the number of V-Switch connections carried on a local link to 4096×4096, or even to 4096×4096×4096 . . . . Therefore, the problem of insufficient VLAN tag resources is solved, and the requirements for the scale of V-Switch technology is met. Moreover, a more effective V-Switch method is provided, the switching capability of V-Switch is improved, and the application scale of V-Switch technology is enlarged.

Abstract: A method for processing request for network address/port translation in a communication network includes: firstly, the first network entity transmits a network address/port request message which carries the priority information of the request; after receiving the request, the second network entity allocates the corresponding network address/port for the first network entity according to the priority information in the request message; finally, the second network entity returns the allocated network address/port information to the first network entity, and the allocated network address/port information is used for performing the network/address translation. By realizing the invention, the service having high priority, e.g. emergency service, can be processed for the network/address translation firstly to ensure the reliability of high priority service communication.

Abstract: The present invention provides a method and a device for implementing a V-Switch. Through setting up a V-Switch correlation with respect to at least two VLAN tags, a DRE performs a V-Switch transmission on an Ethernet frame received according to the V-Switch correlation with respect to at least two VLAN tags. The invention can expand the number of V-Switch connections carried on a local link to 4096×4096, or even to 4096×4096×4096 . . . . Therefore, the problem of insufficient VLAN tag resources is solved, and the requirements for the scale of V-Switch technology is met. Moreover, a more effective V-Switch method is provided, the switching capability of V-Switch is improved, and the application scale of V-Switch technology is enlarged.

Abstract: The present invention provides a method and a device for implementing a V-Switch. Through setting up a V-Switch correlation with respect to at least two VLAN tags, a DRE performs a V-Switch transmission on an Ethernet frame received according to the V-Switch correlation with respect to at least two VLAN tags. The invention can expand the number of V-Switch connections carried on a local link to 4096×4096, or even to 4096×4096×4096 . . . Therefore, the problem of insufficient VLAN tag resources is solved, and the requirements for the scale of V-Switch technology is met. Moreover, a more effective V-Switch method is provided, the switching capability of V-Switch is improved, and the application scale of V-Switch technology is enlarged.

Abstract: A method for ensuring reliability in a network is disclosed, including: distributing, based on service flow, services to multiple home functions entities of the coupled function entity, where the multiple home function entities have identical functional characteristics in the network; taking over, by a first home function entity operating normally, work of a second home function entity to be switched if determining to switch between the multiple home function entities. Through the method, if one or more of the multiple home function entities is in failure, other home function entities may take over work of the function entities in failure, which ensures the continuity of data flows of services and prevents the services from being interrupted, greatly improves reliability and load balancing ability of end-to-end QoS architecture. Furthermore. There is no limitation on network architecture and the method is applicable to networks with any scales.

Abstract: A method for resource admission control process, an Access-Resource and Admission Control Function entity and a Service-based Policy Decision Function entity, wherein the method includes: sending an Admission Request message, which carries the current media stream address information, to an Access-Resource and Admission Control Function entity (A-RACF) in an originating home network from a Service-based Policy Decision Function entity (SPDF) when the SPDF successfully configures an IP Multimedia Subsystem (IMS) connection for a Core Border Gateway Function entity (C-BGF) in the originating home network; and performing a resource admission control process for a corresponding media stream by the A-RACF according to the received Admission Request message. With the method of the present invention, the resource admission control process performed by the A-RACF on the media stream may become meaningful.

Abstract: The present invention discloses a method for selecting a real-time service data transmission path, comprising establishing an independent bearer control layer comprising more than one bearer network resource manager between a service control layer and a bearer network. The method further comprises: after a source bearer network resource manager which is connected to the service control layer receives a connection request for a real-time service, orderly selecting and determining, from the source bearer network resource manager towards a destination bearer network resource manager, an intra-domain route path for the real-time service in a management domain corresponding to each bearer network resource manager, and an inter-domain route path between adjacent management domains corresponding to adjacent bearer network resource managers. In addition, the present invention discloses six methods for selecting a real-time service data transmission path based on different strategies.

Abstract: A method is disclosed for providing reliable transmission Quality of Service (QoS) in communication network, in which a QoS connection is established between bearer network resource managers in bearer network control layer, and maintenance management mechanism is well established in terms of the QoS connection. Various QoS resource control messages can be carried through this established QoS connection, so that request of service bandwidth application of the user and the result thereof, as well as the path information allocated by bearer network resource managers can be transferred. The disclosed method is reliable and easy to implement and maintain, with good controlled quality, and can implement resource synchronization between bearer network resource managers. Therefore, implementation of the disclosed method makes it more convenient to manage resources of bearer network uniformly, and provides technical support on guaranteeing transmission reliability of important services.

Abstract: A method for guaranteeing service reliability in an end-to-end Quality of Service framework is provided. The method includes checking whether connection information held in all node equipment gone through by a session connection is consistent. If the connection information is consistent, the consistency check is completed. Otherwise, the inconsistent connection information is released from the node equipment. In the provided method, a consistency check is performed inside every node equipment, and between node equipment in the network, and thus, abnormal resources may be retrieved, so that network service ability will not be affected by abnormal situations. Consistent with the provided method, degradation of service ability because of network abnormity can be avoided, and network reliability and availability can be improved.

Abstract: The present invention discloses a method for guaranteeing reliability of end-to-end QoS, including: a. detecting and determining whether there is a failure on a Label Switched Path (LSP); if there isn't, returning to the process of detecting; otherwise, determining whether there is a backup LSP for the failed LSP; if there is, an edge router or a transmit router switching service streams and corresponding resources from the failed LSP to the backup LSP based on a certain policy; otherwise, a resource control function (RCF) entity allocating a new LSP according to network topologies for the service streams born on the failed LSP, and switching the service streams from the failed LSP to the newly allocated LSP, and releasing the path resources formerly occupied by the service streams. The method can guarantee service continuity and reliability of QoS in a bearer network.

Abstract: The present invention discloses a method for implementing cross-domain resource management. If requesting for service connection resources, for each domain, a border Call Agent (CA) first sends a connection resource request to a specific bearer network resource manager in its domain. This bearer network resource manager decides whether the destination user's device is in its administration domain. If yes, it makes an appropriate processing and returns a response of a successful processing to the CA it belongs to; if not, the bearer network resource manager performs an appropriate preprocessing and sends back a response of a successful preprocessing to the CA it belongs to, and after receiving the response, the CA sends a connection resource request to its next-hop CA.

Abstract: A method for processing device overload in a communication network includes: a device involved in a service connection checking in real time whether processing capability of the device exceeds an overload threshold set in the device, and sending to a neighboring device of the device an overload alarm message containing an address of the device if the processing capability of the device exceeds the overload threshold; the neighboring device restricting traffic passing through the device after receiving the overload alarm message. The method of the present invention enables the device involved in the service connection to automatically lead the establishment of the subsequent service connection reasonably, which improves the operation efficiency of network and shortens the processing delay of service connection.

Abstract: A method for processing request for network address/port translation in a communication network includes: firstly, the first network entity transmits a network address/port request message which carries the priority information of the request; after receiving the request, the second network entity allocates the corresponding network address/port for the first network entity according to the priority information in the request message; finally, the second network entity returns the allocated network address/port information to the first network entity, and the allocated network address/port information is used for performing the network/address translation. By realizing the invention, the service having high priority, e.g. emergency service, can be processed for the network/address translation firstly to ensure the reliability of high priority service communication.

Abstract: The present invention discloses a method for selecting a real-time service data transmission path, comprising establishing an independent bearer control layer comprising more than one bearer network resource manager between a service control layer and a bearer network. The method further comprises: after a source bearer network resource manager which is connected to the service control layer receives a connection request for a real-time service, orderly selecting and determining, from the source bearer network resource manager towards a destination bearer network resource manager, an intra-domain route path for the real-time service in a management domain corresponding to each bearer network resource manager, and an inter-domain route path between adjacent management domains corresponding to adjacent bearer network resource managers. In addition, the present invention discloses six methods for selecting a real-time service data transmission path based on different strategies.

Abstract: The present invention provides a method and a device for implementing a V-Switch. Through setting up a V-Switch correlation with respect to at least two VLAN tags, a DRE performs a V-Switch transmission on an Ethernet frame received according to the V-Switch correlation with respect to at least two VLAN tags. The invention can expand the number of V-Switch connections carried on a local link to 4096×4096, or even to 4096×4096×4096 . . . . Therefore, the problem of insufficient VLAN tag resources is solved, and the requirements for the scale of V-Switch technology is met. Moreover, a more effective V-Switch method is provided, the switching capability of V-Switch is improved, and the application scale of V-Switch technology is enlarged.

Abstract: The invention discloses a method for implementing resource applications of multiple service flows, including: receiving by a connection manager (CM) a connection resource request message including resource applications of at least two service flows; allocating paths and reserving resources for the service flows by the CM; sending by the CM the paths allocated for the service flows and resources reserved for the service flows to an edge router of a bearer network accessed by the service flows.

Abstract: The embodiments of this invention disclose a method and system for forwarding traffic in a bearer network. The method includes: a CA related to a service call instructing a bearer network resource manager managed by the CA to allocate a QoS policy and reserve resources for the service call; the bearer network resource manager issuing the QoS policy to an edge device in a management domain managed by the bearer network resource manager; the edge device forwarding traffic matching the QoS policy after bearer network resource managers managed by CAs related to the service call successfully allocate QoS policies and reserve resources. With the embodiments of this invention, the bearer network may be controlled precisely whether to forward traffic, and thus it may be avoided effectively that traffic is imported into the bearer network before the service connection is established so as to acquire exact service data amount.

Abstract: A method for guaranteeing service reliability in an end-to-end Quality of Service framework, including: checking whether connection information held in all node equipment gone through by a session connection is consistent; if it is, finishing the consistency check; otherwise, releasing the inconsistent connection information from the node equipment. In this invention, consistency check is performed inside every node equipment, and between node equipment in the network, and thus, abnormal resources may be retrieved, so that network service ability will not be affected by abnormal situations. When the network is of large scope, consistency check can be done according to signaling flow sequence for establishing a session connection. When an inconsistent situation is detected, the node equipment gives a feedback to its upstream node equipment. Usually, there is a great quantity of sessions on a network, so it is better to carry out consistency check in batch for decreasing spending.

Abstract: A method for ensuring reliability in a network is disclosed, including: distributing, based on service flow, services to multiple home function entities of the coupled function entity, where the multiple home function entities have identical functional characteristics in the network; taking over, by a first home function entity operating normally, work of a second home function entity to be switched if determining to switch between the multiple home function entities. Through the method, if one or more of the multiple home function entities is in failure, other home function entities may take over work of the function entities in failure, which ensures the continuity of data flows of services and prevents the services from being interrupted, greatly improves reliability and load balancing ability of end-to-end QoS architecture. Furthermore, there is no limitation on network architecture and the method is applicable to networks with any scales.