Multicast packet copy method and apparatus

Abstract

The embodiment of the invention discloses a method for copying multicast messages and equipment thereof. The method comprises the following steps: a plurality of pieces of multicast message information is received and stored; the information of MGID, MLID and TP of the message information is obtained and stored; marks are added to a plurality of MGIDs; according to a plurality of MGIDs, the corresponding information of MLID and TP is searched, and the corresponding marks are added; according to the corresponding mark of MLID, the corresponding message information is searched; the found message information is copied; according to the mark of TP information, MLID with the corresponding mark and the corresponding message information thereof are sent to the address showed by the TP information. In the embodiment of the invention, by means of adding marks in the process of copying the multicast messages, the sequence of the messages after copy is not disorderly.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and equipment for duplicating multicast messages. Background technique [0002] Multicast technology is widely used in high-end router products, and it is one of the key technologies of IPTV (Internet Protocol Television, Internet TV) business. Demand, video on demand), TS-TV (Time Shifted TV, time-shifted TV) and Internet browsing services, in addition, various broadband value-added services such as streaming media and video conferencing based on broadband networks also use multicast technology. Compared with unicast technology, multicast technology can effectively save bandwidth and reduce network load. [0003] In the existing multicast-supporting equipment, the multicast entry is placed in the local chip, and then the RAM (Random Access Memory, random access memory) in the chip is accessed when a search is required, so that the table entry can be directly acce...

AI Technical Summary

Problems solved by technology

[0003]In the existing multicast-supporting equipment, put the multicast entry in the local chip, and then access the RAM in the chip when it needs to be searched (Random Access Memory, random access memory), in order to find the corresponding multicast table data directly from the RAM table in the chip, but due to the limited RAM capacity, it cannot support more multicast table items

Take the need to support 1M users as an example, the entry information of each user is 64bit, then the RAM of the chip needs 64Mbit, which is intolerable for any device

The existing technology can only copy the message of the next multicast group after the copy of the message of the previous multicast group is completed, and the cross-processing cannot be performed, because the cross-processing will cause disorder among the multicast messages

Moreover, the existing technology can only copy the message of the next multicast group after the copy of the message of the previous multicast group is completed, and the cross-processing cannot be performed, because the cross-processing will cause disorder among the multicast messages.

Images