A multi-priority cross-domain resource reservation integration service guarantee method

Abstract

The present invention provides a multi-priority cross-domain resource reservation integration service guarantee method, the process is as follows: S1: configure a centralized management framework; S2: the transmission domain broadcasts the routing information to the regional management service node S-QoSM, and the S-QoSM collects The routing information is reported to the master control management service node M-QoSM; S3: M-QoSM calculates the global routing view; S4: All end users submit QoS requests to M-QoSM, and M-QoSM collects the QoS requests of end users; S5: M ‑QoSM queries the location of the access router; S6: M‑QoSM calculates the transmission path between domains; S7: S‑QoSM calculates the transmission path in the domain; S8: The border router returns the reservation result to S‑QoSM, and S‑QoSM then sends the reservation result Return to M‑QoSM; M‑QoSM assigns a globally unique flow identification label and sends it along with the resource reservation. The invention can select an optimized boundary-to-boundary global flow identification label path according to the QoS requirement of the flow, and optimize the use of network resources through explicit routing, thereby significantly improving the service quality of the network from end to end.

Description

technical field [0001] The invention relates to resource reservation-oriented integration service guarantee technology in the field of computer networks, in particular to a multi-priority cross-domain resource reservation integration service guarantee method. Background technique [0002] Nowadays, Internet applications are in full swing, IP broadband services are developing rapidly, and network traffic is constantly expanding. Traffic engineering technology is used in the backbone network to balance loads, maximize resource utilization, and reduce congestion to ensure the IP service quality of application services ( Quality of Service, referred to as QoS) requirements. [0003] Multi-Protocol Label Switching (MPLS) is a new generation IP high-speed backbone network switching standard proposed by the Internet Engineering Task Force (IETF). MPLS uses a 20-bit label (label) for data forwarding. When a packet enters the network, a fixed-length short label is assigned to it, a...

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Problems solved by technology

[0007] Aiming at technical problems such as the low efficiency of data forwarding in the existing MPLS technology and the inability to guarantee the service quality of network key business transmission, the present invention provides a multi-priority cross-domain resource reservation integration service guarantee method, by combining connection-oriented LSP and The constraint routing mechanism realizes the selection of optimized, boundary-to-boundary global flow identification label paths according to the QoS request of traffic, and can also optimize the use of network resources through explicit routing, thereby significantly improving the end-to-end QoS of the network

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