Method and device for controlling network traffic and local area network system

Abstract

The invention discloses a method and a device for controlling network traffic and a local area network system, wherein the method comprises the steps: monitoring a new uplink packet to be sent; controlling the traffic of the uplink packet to be sent in the following modes when triggering condition for traffic control is met: when the uplink packet to be sent comes from a first uplink packet applied in a preset high-priority network, the first uplink packet is added into an uplink sending caching queue; when the uplink packet to be sent comes from a second uplink packet applied in a preset non-high-priority network, whether the second uplink packet is allowed to be sent is determined according to current bandwidth occupation; if yes, the second uplink packet is added into the uplink sending caching queue, or else, the second uplink packet is discarded. The method is capable of lowering influence of some network application to other network applications.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a network flow control method, device and local area network system. Background technique [0002] In a network environment with limited bandwidth such as ADSL (Asymmetric Digital Subscriber Line, Asymmetric Digital Subscriber Line), some network applications (such as common P2P applications, including streaming media, BT download, etc.) usually occupy a large amount of upstream and downstream bandwidth. Cause other network application requests to be blocked or interfered. [0003] There are many bandwidth scheduling methods adopted in the prior art, one of which is to control at the network card side. For example, for the uplink bandwidth, the uplink bandwidth limit threshold is set in advance, and the intercepted uplink data packets are stored in the uplink data cache queue, and each time an uplink data packet is intercepted, it is judged whether the bandwidth occupied b...

AI Technical Summary

Problems solved by technology

[0004] However, for downlink data packets, since they reach the modem first and then the network card, the main network bandwidth bottleneck lies in the modem (usually the downlink rate is 1-2M), not the network card (currently generally 1000M network card is used), so , in this prior art, the problem of downlink data blocking cannot be solved through downlink bandwidth scheduling at the network card end

For uplink data packets, although uplink data blocking can be avoided, the occupancy of downlink bandwidth by downlink data packets cannot be controlled, which may also cause downlink data blocking; for example, when the uplink data cache queue contains a large amount of P2P application data (Although part of it may have been discarded), the downlink bandwidth may still be occupied by downlink data packets of P2P applications, making it impossible for other network applications to receive downlink data

It can be seen that this prior art cannot avoid the impact of individual network applications on other network applications

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