MPLS network service scheduling system

Abstract

The invention relates to a system for scheduling service of an MPLS network to schedule and forward a service message with one or more protocol bandwidth in a multi-service transmission platform, which comprises one or more ports used for receiving the MPLS service message, one or more forwarding queues with different forwarding priority which is used for conserving the service message to be forwarded; the system also consists of one or more rate monitoring units used for receiving the MPLS service message from the ports; input rate of the MPLS service message is monitored; an EXP field which is labeled by the MPLS of the corresponding service message is set according to the monitoring result and the protocol bandwidth of the service message and the EXP field is sent to the corresponding forwarding queues according to the service priority or different setting value of the EXP thereof; and a forwarding scheduling unit used for sending the service message to the MPLS network according to the priority of the forwarding queues and / or the EXP value which is labeled by the MPLS of the service message.

Description

technical field [0001] The invention relates to a network service dispatching system, in particular to a service dispatching system of an MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) network. Background technique [0002] In recent years, with the development of the Internet, the amount of data communication is growing explosively. To accommodate this growth, communication networks are undergoing various technological innovations. The MSTP (Multi-Service Transport Platform) equipment based on embedded MPLS not only has a fair access mechanism and a reasonable bandwidth dynamic allocation mechanism, but also provides a unique end-to-end flow control mechanism to better support VPN (Virtual Private Network, virtual private network) and other functions. [0003] MPLS VPN is a virtual private network application provided on the MPLS network, which can provide service classification and correspond to different service qualities, including bandwidth and ...

AI Technical Summary

Problems solved by technology

The peak bandwidth of class A service is 10M, the peak bandwidth of class B service is 10M, the committed bandwidth is 5M, and the peak bandwidth of class C service is 10M. If the export bandwidth of port 4 is only 15M for some reason, it cannot meet the requirements of the third class The sum of service bandwidth requirements will cause congestion on port 4

Because the three types of services A, B, and C enter forwarding queues with different priorities on the egress port 4, the priority of the forwarding queue for type A services is high, so the forwarding of type A services can meet the peak bandwidth; The priority of the forwarding queue is low, so the forwarding of Class C services cannot be guaranteed; but for Class B services, since there is no mark to distinguish the data packets that are within the committed bandwidth of each service and those that exceed the committed bandwidth but are within the peak bandwidth, the two Some services will compete for the remaining bandwidth resources, resulting in services within the committed bandwidth cannot be guaranteed

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