A Routing Method to Satisfy Multiple Constrained Parameters in Large-Scale Software-Defined Networks

A software-defined network, large-scale technology, applied in the field of routing that satisfies multiple constraint parameters, to achieve the effect of low network overhead and high detection efficiency

Active Publication Date: 2017-04-19
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This can effectively reduce the number of detection packets in the network, reduce the consumption of data link bandwidth in the network, and at the same time solve the problem of finding a route that satisfies multi-constraint parameters in a software-defined network

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  • A Routing Method to Satisfy Multiple Constrained Parameters in Large-Scale Software-Defined Networks
  • A Routing Method to Satisfy Multiple Constrained Parameters in Large-Scale Software-Defined Networks
  • A Routing Method to Satisfy Multiple Constrained Parameters in Large-Scale Software-Defined Networks

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Embodiment Construction

[0070] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0071] Refer to attached figure 1 , the specific steps of the present invention are described in detail as follows.

[0072] Step 1, initialize the detection packet.

[0073] (1a) The domain network controller accepts the routing request sent by the source host, and the routing request information includes service quality parameter values ​​of delay, bandwidth, packet loss rate and jitter, source host address, and destination host address.

[0074] (1b) Mark the QoS value field and the intra-domain constraint value field of the routing request in the detection packet as the QoS parameter value.

[0075] (1c) mark the type field in the detection packet as the detection packet type; mark the routing request identifier field as the random number generated by the source host address, the destination host address and the controller; marked as zero.

[0076] (1...

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Abstract

The invention discloses a routing method for meeting multiple constrained parameter conditions in a large-scale software-defined network. The method solves the routing problem that in the prior art, the service quality requirement in the large-scale software-defined network cannot be met. The method includes the steps that first, a domain network controller generates a detection message according to routing request information of a source host, feasible path detection can be carried out, then complete path information is obtained, and at last an optimal path is selected and corresponding network resources on the path are reserved. Network overhead for obtaining the path through calculation is little, service throughput is guaranteed, requirements of services for different levels of service quality are met, probability of repeated path detection is reduced, influences of detection packets on normal data packet transmission in the detection process are reduced, network service quality is guaranteed and network performance is improved.

Description

technical field [0001] The invention belongs to the field of communication technology, and further relates to a routing method satisfying multiple constraint parameters in a large-scale software defined network (Software Defined Network SDN) in the field of multiple software defined network (Software Defined Network SDN) interconnection technologies. The present invention can acquire an intra-domain and inter-domain route with Quality of Service (Quality of Service QoS) guarantee in a Software Defined Network (Software Defined Network SDN). Background technique [0002] With the rapid development of the Internet, various non-traditional data applications have emerged. For example, IP voice and video conferencing, etc., this new application puts forward higher requirements on the quality of service (QoS) of the network, and the traditional best-effort network service can no longer meet the requirements of new services. The Internet Engineering Task Force (IETF) has proposed ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/701H04L12/26H04L12/915
Inventor 杨建华盛立杰宋志坤
Owner XIDIAN UNIV
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