Message sending method and device

Abstract

The present application provides a method for sending a message. The method is applied to MVPN. The MVPN includes a first network device and a second network device. The method includes: the first network device receives the first message sent by the first CE, and the first network device receives the first message sent by the first CE. A message includes a first IPv6 header and a first load, and the first IPv6 header includes a first SA and a first DA; according to the first entry, the first address identifier corresponding to the first SA and the first DA is determined, and the first table The item includes the corresponding relationship between the first SA and the first DA and the first address identifier; the first IPv6 header in the first message is updated to the second IPv6 header to obtain the second message, and the second IPv6 header does not include The first SA field and the first DA field; encapsulating the second message according to the first address identifier to obtain the first encapsulated message, the first encapsulated message includes the first address identifier, and the first address identifier is located outside the second message layer; sending the first encapsulated packet to the second network device. The technical solution provided by this application can save packaging cost.

Description

technical field [0001] The present application relates to the field of network communication, and more specifically, to a method and device for sending messages. Background technique [0002] The internet protocol (internet protocol, IP) multicast technology realizes efficient point-to-multipoint data transmission in an IP network, and can effectively save network bandwidth and reduce network load. Therefore, the multicast service is widely used in many aspects such as real-time data transmission, multimedia conference, data copy, interactive network television (internet protocol television, IPTV), game and simulation. [0003] When carrying the Internet protocol version 6 (internet protocol version 6, IPv6) multicast service of private network users, for example, virtual private network-Internet protocol version 6 multicast ((virtual private network, VPN)-IPv6multicast), or Multicast virtual private network (multicast virtual private network, MVPN)-IPv6, the ingress node w...

AI Technical Summary

Problems solved by technology

[0004] In the traditional technical solution, after encapsulating the IPv6 multicast message, the inner layer IPv6 multicast message also includes the source address SA field and the destination address DA field of the IPv6 multicast message, and the SA field and DA field will occupy a certain amount of time. memory resources, so there is an encapsulation overhead

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