Multicast message processing method and device and equipment

Abstract

The invention discloses a multicast message processing method, a multicast message processing device and multicast message processing equipment. The method comprises the following steps that: when receiving a multicast message reported by an exchange chip, a defense device extracts defense parameters of a multicast flow corresponding to the multicast message; the defense device counts the defenseparameters of the multicast flow to generate a defense statistic value; and when judging that the defense statistic value is equal to or more than a set defense threshold value, the defense device configures the defense parameters into a defense strategy of the exchange chip, wherein the defense strategy is used for instructing the exchange chip to discard the multicast message which is matched with the defense parameters. In the invention, dynamic statistics and analysis are adopted and the customized defense strategy is carried out to deal with the corresponding defense parameters, so a multicast table entry resource is effectively protected from occupation by an attack multicast flow on the basis of guaranteeing the normal multicast flow forwarding as much as possible, the too much consumption of a CPU processing resource by the attack multicast flow is avoided, and the too much consumption of the hardware source of the exchange core is also avoided due to the fact that the defensestrategy is dynamically configured in the exchange chip.

Description

technical field [0001] The embodiment of the present invention relates to a multicast message forwarding technology, in particular to a multicast message processing method, device and equipment. Background technique [0002] In the Internet (Internet), multimedia services such as video conferencing and Internet TV are becoming an important part of information transmission. In order to avoid wasting bandwidth resources, multicast technology is often used as the basis for such services. way of communication. Using multicast technology, when the sender sends data to a group of receivers, it only needs to send the data message with a group address of a reserved multicast group, and only the receivers who join the multicast group can receive the multicast message datagram. For the sender, the data message can be sent to all receivers only once, which greatly reduces the load on the network and the sender. [0003] The forwarding of data packets in the network needs to be compl...

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned technology introduces the following defects: because the CPU of the switching device must directly process the multicast data stream before it can create a multicast forwarding entry and configure it to the switching chip, the multicast packets that cannot be queried for the forwarding entry are all is handed over to the CPU for processing

However, this solution cannot distinguish legal multicast streams from illegal multicast streams, cannot solve the problem of excessive consumption of multicast tables, and will also affect normal multicast services

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