Network board of network communication device, network communication device and method for adjusting switching bandwidth

Abstract

The invention discloses a network board of a network communication device, a network communication device and a method for adjusting the switching bandwidth. In the present invention, each interface board is divided into a plurality of sub-paths in the switching path corresponding to the network board, and a part of the sub-paths are directly connected between the backplane interface and the switching chip, thereby realizing the basic bandwidth of the switching path, while the rest The sub-paths are connected in series between the backplane interface and the switch chip through multiple pairs of loopback ports, so that they can be selectively interconnected by using multiple pairs of loopback ports to conduct or disconnect between the backplane interface and the switch chip. In this way, the adjusted bandwidth of the switching path is realized. In this way, the switching path corresponding to each interface board on the network board forms an adjustable bandwidth with the basic bandwidth as the lower limit of the bandwidth and the adjustment bandwidth as the adjustment range, so that the switching bandwidth between the interface boards is adjustable. Correspondingly, The adjustment of the exchange capacity between the interface boards can be realized.

Description

technical field [0001] The invention relates to network communication technology, in particular to a network board of a network communication device capable of adjusting switching bandwidth, a network communication device and a method for adjusting switching bandwidth. Background technique [0002] Existing network communication devices (such as routers, switches, or integrated devices of the two) generally include a backplane, and an interface board and a network board interconnected through the backplane. [0003] The main function of the interface board is to implement user port packet forwarding. In the upstream direction of the packet, after the interface board receives the IP packet from the ingress port, it first queries the egress port of the packet, then divides the packet and the board to send to the network board for cell exchange. In the downlink direction of the packet, after the interface board receives the cell from the network board through the backplane an...

AI Technical Summary

Problems solved by technology

[0006] Among them, the bandwidth of the switching path in the network board determines the switching bandwidth between every two interface boards, but since the switching bandwidth of the network board path is fixed, the switching bandwidth between the interface boards cannot be adjusted, thus Make the switching capability between interface boards non-adjustable

Images