Abstract:
A packet processing method, device and system includes: receiving, by a switching device, a packet, where there is a correspondence in the switching device between a prefix and a generic flow entry, where the correspondence is created by using the prefix as an index, and a match field of the generic flow entry corresponding to the prefix includes the prefix; acquiring, by the switching device according to the prefix, a bit field that is in the packet and that is used for matching; and performing matching, by the switching device, between a value of the bit field and a data parameter of the match field of the generic flow entry corresponding to the prefix.
Abstract:
The present invention provides a method, an apparatus, and a system for deploying a service flow forwarding function. The method includes: sending, by a control plane network element, a notification message to an infrastructure controller, the notification message includes at least one forwarding identifier corresponding to a user service flow and includes an identifier of a target forwarding plane network element providing service processing for the user service flow; the notification message is used to instruct the infrastructure controller to determine a first forwarding rule including the at least one forwarding identifier and the identifier of the target forwarding plane network element and send the first forwarding rule to an infrastructure forwarder controlled by the infrastructure controller. The present invention is used for service flow forwarding, resolves a problem that flexibility of service flow forwarding is relatively low, and achieves an effect of improving flexibility of service flow forwarding.
Abstract:
A user packet processing method is disclosed in which a forwarding plane device receives a flow entry installation message from a control plane device, writes the flow entries into the flow tables corresponding to the flow table identifiers, and performs a matching and processing procedure on the received user packet after the flow entries are written into the flow tables corresponding to the flow table identifiers; wherein the quantity of the flow entry installation messages is one, and the flow entry installation message carries all flow entries that may be needed to process a user packet, and a flow table identifier of a flow table in which each flow entry of all the flow entries is located. By using the foregoing manner, a case is effectively avoid that a forwarding plane device wrongly processes a user packet because of a network delay.
Abstract:
Embodiments of the present disclosure provide a packet processing method, a DPI network element and a DPI device. The method includes: determining, according to a packet feature of a first packet of a service flow, that a first deep packet inspection DPI device is used for performing DPI on the first packet, where DPI needs to be performed on the first packet; sending a first DPI request to the first DPI device, wherein the first DPI request includes all or part of contents of the first packet; and receiving a first DPI response that is sent by the first DPI device according to the first DPI request, wherein the first DPI response includes DPI result. The packet processing method, the DPI network element and the DPI device of the embodiments of the present disclosure can realize support for a network environment deployed with multiple DPI devices.
Abstract:
A method includes: respectively initiating a local routing authorization request to a first local routing policy entity and a second local routing policy entity according to service flow information of a first mobile station, so as to enable the first local routing policy entity to perform local routing authorization for the first mobile station and enable the second local routing policy entity to perform local routing authorization for the second mobile station; and when a local routing authorization result of the first mobile station and a local routing authorization result of the second mobile station are both success, transmitting, through local routing, a service flow corresponding to the service flow information of the first mobile station and a service flow corresponding to the service flow information of the second mobile station.
Abstract:
A communications method in a roaming scenario and an apparatus are provided. The method includes: obtaining, by a new V-SMF from an old V-SMF, first service information corresponding to first DNAI which is a DNAI corresponding to the location before UE's movement; sending, by the new V-SMF, the first service information to an H-SMF; receiving, by the new V-SMF, a first message comprising the first service information from the H-SMF; and after receiving the first message, sending, by the new V-SMF based on the first message, a session modification command to the UE, wherein the session modification command comprises the first service information and an EAS re-discovery indication, so that the UE re-queries the EAS.
Abstract:
A communication method and apparatus. One method includes: a session management network element obtains an identifier of a DN accessed by a terminal device and/or an identifier of a network slice accessed by the terminal device. The session management network element determines, based on the identifier of the DN and/or the identifier of the network slice, a service type requested by the terminal device. The session management network element requests, from an access network device on a satellite, tunnel information corresponding to the service type. The session management network element receives, from the access network device, the tunnel information corresponding to the service type.
Abstract:
The present disclosure provides example traffic routing methods, apparatuses, and systems. One example method includes receiving a routing rule from a session management network element in a session management process, wherein the routing rule indicates at least one of the following: to send a first traffic to a first function entity, or to send a second traffic to a second function entity or an access device, where the first traffic is a traffic on which first traffic steering control is to be performed, and the second traffic is a traffic on which the first traffic steering control has been performed; and transmitting a received traffic according to the routing rule.
Abstract:
This application provides a communication method and apparatus. The method includes: A first session management function network element determines whether a first session management function network element is able to serve a first data network access identifier (DNAI). The first session management function network element sends first information to a first access and mobility management function network element when the first session management function network element is able to serve the first DNAI, where the first information is used by the first access and mobility management function network element to remove an intermediate session management function network element.
Abstract:
In a media data transmission method, an access network device receives layered coding information of a media flow, where the media flow is a target service; the access network device determines a plurality of multicast groups based on the layered coding information and information about terminal devices that access the target service; and the access network device sends a media data packet of the target service to the terminal devices based on the plurality of multicast groups. By using the method, multicast grouping may be performed on a plurality of terminal devices that access a same service, and further differentiated transmission is performed on media data of the same service. This improves a data transmission speed of the access network device, and improves a data throughput in a signal coverage area of the access network device.