Abstract:
A control method, system and function entity for reporting a bearer event of a signaling IP flow are provided. Flow identifier information may be generated for a signaling IP flow and a media IP flow, to unify a mechanism for reporting a signaling path status and a mechanism for reporting a bearer event of a media IP flow. In the method, the mechanism for reporting a signaling path status is not limited by the parameter of Flow Usage.
Abstract:
Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.
Abstract:
A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function PCRF unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.
Abstract:
This application relates to the field of communications technologies, and discloses a content delivery method, a device, and a system, to resolve an existing problem of traffic chaos in Http redirection. A specific solution includes: receiving, by a first access gateway, a configuration command, and configuring a correspondence between an identifier and a traffic diversion policy according to the configuration command; receiving, by the first access gateway, a first access request, where the first access request carries a first identifier, and the first access request is used to request content to be accessed by a terminal device; when a traffic diversion policy corresponding to the first identifier exists in the correspondence, diverting, by the first access gateway, the first access request to a first server; and receiving, by the first access gateway, content returned by the first server, and sending the content to the terminal device. This application is applied to a content delivery process.
Abstract:
A method and a system for exercising policy control, a policy and charging enforcement function (PCEF) are provided, which can solve the problem that no policy control can be exercised over application service flows without an application function (AF). In the method, a PCRF receives information about an application event sent by a PCEF after subscribing the application event from the PCEF; and the PCRF generates a control policy for a service flow of the application according to the information about the application event. In the present invention, the PCEF sends the obtained information about the application event to the PCRF, so that even when no AF is involved, the PCRF can still generate a control policy according to policy contexts including the information about the application event and the like.
Abstract:
The present invention discloses a load balancing method, apparatus and system. In the present invention, a network management and control center of a basic network system interacts with a service management and control center of a network service system, and determines a load balancing policy according to entity information about service function execution entities in the network service system; and the network management and control center generates an execution flow table according to the load balancing policy, and controls a network device to perform a load balancing operation according to the execution flow table. The present invention is applicable to a network service system comprising a service function execution entity in a transparent mode, so as to implement load balancing processing on the service function execution entity in transparent mode in the network service system.
Abstract:
A method, an apparatus, and a system are provided for load balancing of a service chain. The method includes: receiving, by a flow classifier, a service chain selection and control policy sent by a policy and charging rules function (PCRF) unit; hashing, by the flow classifier according to a hash quantity, a service flow corresponding to a service chain identifier, to obtain multiple subflows, and adding the service chain identifier and hashing factors to packets of the subflows, where different subflows correspond to different hashing factors; and sending, by the flow classifier, the packets of the subflows after the service chain identifier and the hashing factors are added, to a forwarding device.
Abstract:
The present invention discloses a load balancing method, apparatus and system. In the present invention, a network management and control center of a basic network system interacts with a service management and control center of a network service system, and determines a load balancing policy according to entity information about service function execution entities in the network service system; and the network management and control center generates an execution flow table according to the load balancing policy, and controls a network device to perform a load balancing operation according to the execution flow table. The present invention is applicable to a network service system comprising a service function execution entity in a transparent mode, so as to implement load balancing processing on the service function execution entity in transparent mode in the network service system.
Abstract:
Disclosed are a flow classifier, policy and charging rules function unit and controller. The flow classifier receives a service chain selection control policy sent by a policy and charging rules function unit. The service chain selection control policy includes a corresponding relation between an application type and an identifier of a service chain. The service chain is a path formed by a forwarding device and a value-added service device both of which a service flow with the application type needs to pass through. The flow classifier detects the service flow with the application type based on the service chain selection control policy and adds the identifier of the service chain to a message of the service flow. The flow classifier sends the message of the service flow with the added identifier of the service chain to a forwarding device directly connected to the flow classifier.