A Network Traffic Scheduling Method for Implementing Discontinuous Segment Routing Domain
A technology of network traffic and scheduling method, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., and can solve the problems of lack of smooth transition, limitation of SegmentRouting deployment and application range, etc.
Active Publication Date: 2021-06-18
安徽皖兴通信息技术有限公司
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[0009] A network traffic scheduling method for implementing discontinuous segment routing domains proposed by the present invention can solve the problem that the continuity of the existing control plane and forwarding plane limits the deployment and application range of Segment Routing, and requires a large number of equipment replacement and upgrades in a unified manner. Technical issues with the lack of a way to make a smooth transition
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.
[0027] like figure 1 As shown, a network traffic scheduling method for implementing a discontinuous segment routing domain in an embodiment of the present invention includes the following steps:
[0028] S100, through the IGP protocol to open up the global unicast route, the IGP is responsible for the routing of the Underlay network, the collection of link status and port load information, as a basis for application path calculation;
[0029] S200. The device nodes supporting Segment Routing in the domain form an abstract Overlay network. The devic...
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A network traffic scheduling method for implementing discontinuous segment routing domains, which can solve the technical problem that the continuity of the existing control plane and forwarding plane limits the deployment and application range of Segment Routing, and lacks a smooth transition method. The present invention constitutes an Overlay network by selecting some equipment nodes supporting Segment Routing in the Underlay network. SID-based label forwarding only needs to be completed on the Overlay, and the outer layer performs IP routing through the GRE tunnel, shielding the underlying network. The nodes in the Overlay network realize the logical point-to-multipoint Fullmesh connection through MGRE. Any two nodes are reachable by one hop, and no adjacent SID is needed. The MGRE encapsulation address to the destination node is obtained by the NHRP protocol request. . When an application requests a path that meets certain SLA requirements, the controller calculates a path that meets the quality requirements of the application link based on the LSDB and TED reported by BGP‑LS, combined with the loose nodes in the Overlay, for source injection and traffic flow encapsulation After the node SID enters the GRE tunnel, traffic scheduling is finally realized.
Description
technical field [0001] The invention relates to the technical field of flow path control of network communication equipment, in particular to a network flow scheduling method for realizing discontinuous segment routing domains. Background technique [0002] Traditional communication equipment path control technology includes routing and policy routing. Routing is generally based on the shortest path, but the traffic in the network is bursty and uncertain, and the shortest path is often not the optimal path. Routing is still based on path attributes or policy routing. Fixed traffic paths cannot be dynamically adjusted according to changes in link load. Applications cannot obtain SLA guarantees. Some links are congested and lose packets, while others are idle. Symmetry creates a huge waste of bandwidth. Correspondingly, many traffic scheduling solutions have been produced, such as MPLS traffic engineering, Openflow, and Segment Routing. MPLS traffic engineering can guarantee...
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IPC IPC(8): H04L12/721H04L12/723H04L12/741H04L12/801H04L12/911H04L45/50H04L45/74
CPCH04L45/38H04L45/50H04L45/74H04L47/10H04L47/825
Inventor 晏志文
Owner 安徽皖兴通信息技术有限公司