Multicast message crossing-card forwarding method and device, network equipment and readable storage medium

Abstract

The embodiment of the invention provides a multicast message crossing-card forwarding method and device, network equipment and a readable storage medium, and belongs to the field of data communications. The method comprises the following steps: receiving a multicast message to be forwarded, and acquiring a multicast target MAC (Media Access Control) address from the multicast message; acquiring atarget board card group corresponding to the multicast target MAC address, and copying the multicast message into corresponding ports of the target board card group; forwarding, by each correspondingport, the multicast message to target board cards according to a configured ACL (Access Control List). In the scheme, during setting of multicast MAC addresses, one board card group only corresponds to one multicast MAC address, and each board card group comprises at least two board cards, so that multicast address list item resources in a switch chip are saved, and data crossing-card forwarding independent from the sizes of the multicast address list item resources in the switch chip can be realized.

Description

Technical field [0001] This application relates to the field of communication technology, and specifically to a method, device, network device, and readable storage medium for forwarding multicast packets across cards. Background technique [0002] With the rapid development of today's networks, the rapid increase in network carrying traffic and the diversified changes in business types, people have put forward higher requirements for network equipment. Take router equipment as an example, not only to ensure data reliability and security, but also to require higher-speed data processing and forwarding capabilities. [0003] At present, in most network equipment, the data processing unit is a forwarding card. Different forwarding cards have different data processing capabilities, and also provide users with customized options for the application environment. In places where data processing and forwarding capabilities are relatively high, such as data centers , The core computer roo...

AI Technical Summary

Problems solved by technology

[0005] However, in order to make the switch card only serve as a logical channel to realize cross-card data forwarding, as many forwarding cards as there are, it is necessary to create multicast addresses corresponding to the power of 2 of the number of forwarding cards in the switching card, and the switching of the switching card The multicast address entries of the chip are limited, which directly leads to the limitation of the number of forwarding cards, which cannot meet the purpose of expanding more forwarding cards. Therefore, when the switch chip of the switch card is determined, the number of forwarding cards is limited, and elastic expansion of forwarding cards cannot be performed.

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