Switch board card and data flow forwarding method

Abstract

The invention discloses a switch board card and a data flow forwarding method; the board card comprises a first switching chip and a second switching chip; the first switching chip is connected with a board card fiber port and an inter-board card inline port; the first switching chip and the second switching chip are connected through an inline port in the board card; the first switching chip bandwidth is bigger than a set threshold; the second switching chip capacity exceeds a set threshold. Because the first switching chip bandwidth is bigger than the first set threshold, and the second switching chip capacity exceeds the second set threshold, so the switch board card with large capacity and high bandwidth can be realized with a relatively low cost; in addition, the two and three-layer forwarding separation design can greatly improve the board card exchanging capacity.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a switch board and a data flow forwarding method. Background technique [0002] The switch is a network device that is often used in the current network architecture. The board refers to the board used for data forwarding on the switch. The switching chip on the board stores the Media Access Control (MAC) address that determines the data flow forwarding exit. Table and Address Resolution Protocol (Address Resolution Protocol, ARP) forwarding table, the forwarding performance of the switch chip also determines the bandwidth of the switch board. [0003] Among them, the switching capacity refers to the total number of users that can be supported on the board, that is, the number of MAC addresses and ARP entries of the users that can be stored. With the rapid development of the central processing unit (Central Processing Unit, CPU) and memory, The switching capacity is mainly...

AI Technical Summary

Problems solved by technology

[0004] The current switching chip, according to different usage scenarios and the choice of switching capacity and switching bandwidth, derives two typical series: high-capacity switching chip with general bandwidth (referred to as large-capacity switching chip) and high-bandwidth capacity general switching chip ( High-bandwidth switching chip for short), which leads to the fact that current boards cannot meet the needs of large capacity and high bandwidth at the same time; and switching chips that can meet both large capacity and high bandwidth requirements are usually more expensive

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