Method for sending and obtaining assertion message and network node

Abstract

The invention provides a method and equipment for sending and acquiring Assert messages, which are used for improving the message processing efficiency and reducing the overhead of network equipment. The method includes a network node determining a plurality of Assert records based on a multicast source address. Each Assert record in the plurality of Assert records comprises a multicast source address and a multicast group address, the plurality of Assert records have the same multicast source address, and the multicast group addresses contained in different Assert records in the plurality of Assert records are different from one another. And the network node generates an Assert message according to the plurality of Assert records, wherein the Assert message comprises a multicast source address and multicast group addresses in the plurality of Assert records. And the network node sends the Assert message in a multicast manner.

Description

[0001] This application is a divisional application of a Chinese patent application submitted to the State Intellectual Property Office of China on February 21, 2019, with the application number CN201910128323.1 and the title of the invention "A method and device for sending and obtaining assertion messages". technical field [0002] The present invention relates to the technical field of communication, in particular to a method and device for sending an assertion (Assert) message. Background technique [0003] When a multicast message arrives at a receiver (member of a multicast group) from a multicast source, it is necessary to implement copying and forwarding of the multicast message through a multicast network. In order to construct a multicast network, a multicast protocol needs to be configured, for example, a protocol independent multicast (Protocol Independent Multicast, PIM) protocol is currently the most widely used intra-domain multicast protocol. The multicast di...

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Problems solved by technology

[0005] However, with the widespread deployment of multicast services, the number of multicast entries doubles, and devices on the multicast network are likely to send a large number of Assert messages in a short period of time, increasing network overhead and causing serious damage to devices sharing the network. Large impact may also cause Assert messages to be discarded due to failure to process them in time, affecting the normal forwarding of multicast packets

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