Message scheduling method and device thereof

Abstract

The embodiment of the invention discloses a message scheduling method, comprising the steps as follows: the length of each original message of the user is adjusted as the practical message length on the user QOS guarantee chain; subsequently, the scheduling message of the user is gained after the original message position with the prearranged length and length information are added at the specific position of the message with the length adjusted; the prearranged length of each scheduling message of the user is offset so that the scheduling is carried out; furthermore, the scheduling rate is ensured to be equal to the transmission rate promised on the user QOS guarantee chain; the original message of the scheduling message is gained according to the original message position with the prearranged length and the length information at the specific position of the scheduling message, and the gained original message is sent out. The embodiment of the invention also discloses a message scheduling device. The technical proposal can realize the transmission rate promised on the user QOS guarantee chain and precisely schedule the message of the user.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a message scheduling method and device. Background technique [0002] In a broadband access network, in order to ensure service quality, network devices are usually required to schedule and shape the traffic on the outbound interface. The functions of scheduling and shaping are usually uniformly deployed on a broadband remote access server (BRAS, Broadband Remote Access Server) or a service router (SR, Service Router). With the large-scale application of scheduling and shaping, the requirements for scheduling accuracy in network services are getting higher and higher. [0003] figure 1 It is a typical traffic scheduling scenario in the prior art. Such as figure 1 As shown, the BRAS or SR sends a message to the client front-end network through the access network. Among them, the access network includes: Ethernet switch, Digital Subscriber Line Access Multiplexer...

AI Technical Summary

Problems solved by technology

But the problem with this solution is: if the rate configured on the BRAS is configured to be small, the traffic on the last mile link, that is, the traffic on the DSLAM egress will not reach 1Mbps; if the rate configured on the BRAS is too high, then The traffic on the egress of the DSLAM will exceed 1Mbps, resulting in packet loss

[0011] but in figure 1 In the scenario shown, the length of the Ethernet packet ranges from 64 bytes to 9216 bytes, so the above-mentioned solution 2 still cannot solve the problem. figure 1 problem in

[0012] To sum up, in the scenario where there is no linear relationship between the length of the packet currently to be scheduled and the actual length of the packet on the QoS guaranteed link, the existing technology cannot guarantee the promised value on the link according to the user's QoS. Transmission rate, precise scheduling of user packets

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