MPLS network service scheduling method

Abstract

The invention discloses a method for dispatching business of an MPLS network, which dispatches and transmits a business message with diversified protocol bandwidth in a multiple service transmission platform. The method comprises the following steps: step 1: the input speed of business message in every path is monitored and an EXP field in the MPLS label of the message which belongs to a first protocol bandwidth is marked as xl; step 2: the input business message is sent to corresponding transmission queue; step 3: for business message of the same type, the message of which the EXP field is marked as xl in the MPLS label is transmitted preferentially; wherein, 0 less than or equal to 1 less than or equal to 7. The data packet within the protocol bandwidth in the business data flow is marked by using the EXP field of the MPLS label, the invention solves the problem that the business data packet outside the B type business protocol bandwidth preempts the bandwidth of the business data packet in the protocol bandwidth so that the output bandwidth resource is distributed more reasonably.

Description

technical field [0001] The invention relates to a network service scheduling method, in particular to a service scheduling method for 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 p...

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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