A method and device for splitting flow

Abstract

The embodiment of the present invention discloses a method and device for distributing traffic, including: the first network node calculates the first packet loss rate of the first forwarding tunnel within a preset period; when the first packet loss rate is greater than the first packet loss rate When a predetermined threshold is reached, the rated bandwidth of the first forwarding tunnel is reduced by the first predetermined bandwidth to obtain the first available bandwidth; when the forwarding traffic of the first forwarding tunnel exceeds the first available bandwidth, the excess forwarding The traffic is distributed to the second data link for forwarding. It can be seen that the first network node reduces the available bandwidth of the first forwarding tunnel to the second when the packet loss rate of the first forwarding tunnel is relatively large. An available bandwidth, because the first available bandwidth is smaller than the original available bandwidth of the first forwarding tunnel shown, the forwarded traffic will exceed the first available bandwidth earlier, which advances the offloading of the first network node offloading traffic timing, reducing the likelihood of severe packet loss before traffic is diverted.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for splitting traffic. Background technique [0002] Hybrid Access (Hybrid Access, HA) is currently a relatively common way for user terminals to connect to the network. The so-called hybrid access mode means that the user terminal is connected to the network through multiple different types of data transmission links at the same time. A typical application scenario in the hybrid access mode is that a user terminal is connected to the network through a Digital Subscriber Line (Digital Subscriber Line, DSL) link and a Long Term Evolution (Long Term Evolution, LTE) link at the same time. [0003] figure 1 It is a network topology diagram of a hybrid access network, such as figure 1 As shown, a PC (personal computer), that is, a user terminal, is connected to a home gateway (Home Gateway, HG), and there is a DSL link and an LTE link between the HG and a hybrid access ...

AI Technical Summary

Problems solved by technology

[0004] However, the bandwidth on the DSL link between HG1 and HG2 and the Digital Subscriber Line Access Multiplexer (Digital Subscriber Line Access Multiplexer, DSLAM) can be guaranteed, but the DSLAM passes through the router (Router) to the HAAP. It is an IP link, and the bandwidth provided to each user terminal cannot be guaranteed. As a result, when the number of HGs accessed by the DSLAM is too large, even if the traffic on the DSL link has not exceeded the bandwidth of the DSL link, the IP link During the process of forwarding traffic on the road, there will still be serious packet loss, which affects the network quality

Images