CN102025529A - Traffic route selection method based on optimal-cost intelligent optical network system - Google Patents
Traffic route selection method based on optimal-cost intelligent optical network system Download PDFInfo
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- CN102025529A CN102025529A CN2010102446470A CN201010244647A CN102025529A CN 102025529 A CN102025529 A CN 102025529A CN 2010102446470 A CN2010102446470 A CN 2010102446470A CN 201010244647 A CN201010244647 A CN 201010244647A CN 102025529 A CN102025529 A CN 102025529A
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Abstract
The invention discloses a traffic route selection method based on an optimal-cost intelligent optical network system, and the method comprises selection of the traffic loading route. The method disclosed by the invention is characterized by comprising the following steps: finding out all traffic routes which satisfy the traffic bandwidth requirement from a start node to source and destination nodes; and selecting the traffic route with the minimal comprehensive cost as the traffic loading route, wherein L is the total link length of all traffic routes, a is the unit price of the link, m is the number of nodes which are passed by all the traffic routes (containing the source and destination nodes of the traffic), b is the unit price of the node equipment, and mu i is the equipment capacity factor of the nodes passed by the traffic routes (containing the source and destination nodes of the traffic). The traffic route selection method provided by the invention can be used for selecting the traffic route with the optimal cost, thereby overcoming the defects of single considered factor, limited applicable network types, incapability of ensuring low cost for the traffic, and the like in the prior art.
Description
Technical field
The present invention relates to a kind of ASON, especially a kind of service route selecting method of the intelligent optical network system based on the cost optimum.
Background technology
Along with the fast development of the Internet and the aggravation of market competition, operator needs fast, professional providing capability cheaply.Characteristics such as the explosive growth of global metadata business and burst thereof, uncertain, Unpredictability; require optical transport network that more flexible net assignment and efficiently network protection recovery capability fast are provided; the ASON technology is arisen at the historic moment under this demand exactly, promotes to transmit net and changes to " user's sensing type " from traditional " bandwidth is driving ".
ASON (ASON) is an optical-fiber network of new generation of finishing automatic function of exchange under routing and signaling control, can reduce the input and the O﹠M cost of networking on a large scale.How in the network planning " intelligence " advantage being brought into play, thereby the professional cost that provides is provided to the full extent, is the key of ASON network.And service route selecting method is the core of " intelligence ", also is present industry question of common concern.
At present, service route selecting method is all also more single.Mainly contain critical path method (CPM), fewest number of hops method, flow equalization method etc., be specifically described as follows:
1) critical path method (CPM)
Critical path method (CPM) is as the method for selecting the unique foundation of professional route with path length.This method is the most frequently used in the present ASON route planning, but because path length is not to be the unique factor that influence construction cost, with cost height be not simple linear relationship, therefore, the employing critical path method (CPM) can't guarantee the cost optimum.
2) fewest number of hops method
The fewest number of hops method is to select in all professional routes through the minimum route of node, and has ignored factor such as route length.Mininet is effective relatively uniformly for network node position distribution and linkage length for this method, as metropolitan area network etc., does not stride the segment length bigger catenet that floats and be suitable for, and as inter-provincial net etc., often causes cost higher.
3) flow equalization method
The flow equalization method is assigned to business on the internodal multilink of sourcesink comparatively equably, reaches each bar link utilization equilibrium of the whole network as far as possible.In order to reach balanced, the flow equalization method tends to increase the path or the number of nodes of professional route, thereby brings higher professional route cost, causes construction cost to be difficult to reduce.This method is used in actual route planning and is few, common a kind of supplementary means as professional Route Selection.
More than these three kinds of route selection methods all only lay particular emphasis on certain single factors of the professional route of influence, can't guarantee that selected professional route is optimum and network cost is minimum, only be applicable to application scenarioss such as particular network structure, network type, business demand.Therefore, these methods all can not well satisfy professional requirement to route in the real network.
Summary of the invention
A kind of effective reduction networking cost that the objective of the invention is to provide, amid all these factors guarantee the service route selecting method based on the intelligent optical network system of cost optimum of network optimization operation in order to solve above-mentioned networking cost height, Consideration is single, the applicable network type is limited deficiency.
In order to achieve the above object, the service route selecting method that the present invention is designed based on the intelligent optical network system of cost optimum, comprise selection to the carrying route of business, it is characterized in that comprising following steps: find out all from starting point to the sourcesink node and satisfy the professional route of service bandwidth requirement, select the integrate-cost cost
Minimum professional route is professional carrying route; Wherein: L is the link total length of the professional route of each bar; A is the link unit price;
M is the number of nodes (containing professional sourcesink node) of the professional route process of each bar; B is the node device unit price,
μ
iBe the utilization rate of equipment and installations of professional route through node (the sourcesink node that contains business).
Preferred scheme is may further comprise the steps:
Step 1: for total amount is the business of N, and parameter n is set, and represents n bar business, and the n initial value gets 1;
Step 2:
Step 2-1: analyze the route of n bar business, detect in whether professional sourcesink node be included in the ASON, be execution in step 2-2 then, otherwise report an error, show that there are defective in this network or business demand;
Step 2-2: traversal comes from starting point to all professional routes of sourcesink node, and whether the surplus resources that detects these professional routes satisfies the requirement of service bandwidth;
Step 2-3: after above-mentioned detection,, then report an error, show that this business can't find the carrying route if satisfactory professional route quantity is 0; As if professional route quantity is 1, then the carrying route that is business with this unique route; If professional route quantity greater than 1, then changes step 3 over to;
Step 3:
A) calculate the link total length L of the professional route of each bar, and multiply by link unit price a, obtain link cost cost L * a;
B) calculate the number of nodes m of the professional route process of each bar, and multiply by node device unit price b, obtain node cost price m * b;
C) with the node device utilance μ of each professional route through each node
i(i=1 2...n) multiply by node device unit price b, and summation, calculates the use cost cost of node
Step 4:
Each cost price summation with step 3 obtains calculates the integrate-cost cost
(i=1 2...n), and selects the professional route of integrated cost cost minimum wherein to be professional carrying route;
Step 5: parameter n adds 1 automatically, repeating step 2～4, and until n＞N, all business arrangements finish.
The service route selecting method of the resulting intelligent optical network system based on the cost optimum of the present invention, utilize the node device utilance to characterize factors such as node existing traffic carrying capacity, importance and saturation, be used for introducing the influence of node at service route selecting method; Introduced the linkage length of professional route simultaneously, three influencing factors of jumping figure and node cost, carry out COMPREHENSIVE CALCULATING, generally speaking, the cost that business provides is made up of line cost and transmission equipment cost two large divisions, optical cable route length is long more, the node jumping figure is many more, the node cost value is big more, cost is also just high more, the present invention is in the network planning is built, by taking all factors into consideration a plurality of professional Route Selection factors, the flexible net assignment ability of utilizing ASON to provide is selected the professional route of cost optimum, and is single to overcome the Consideration that prior art exists, the applicable network type is limited, can't guarantee the defectives such as low cost that business provides, give full play of " intelligence " advantage of ASON network, have the advantage that can reduce network cost.
Description of drawings
Fig. 1 is the schematic diagram that business demand sourcesink node does not belong to the network node subclass;
Fig. 2 is the networking schematic diagram of ASON;
Fig. 3 is the flow chart that ASON of the present invention is considered multifactorial service route selecting method;
Embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment.
Embodiment 1
The service route selecting method of the described intelligent optical network system based on the cost optimum of present embodiment, comprise selection to the carrying route of business, it is characterized in that comprising following steps: find out all from starting point to the sourcesink node and satisfy the professional route of service bandwidth requirement, select the integrate-cost cost
Minimum professional route is professional carrying route; Wherein: L is the link total length of the professional route of each bar; A is the link unit price;
M is the number of nodes (containing professional sourcesink node) of the professional route process of each bar; B is the node device unit price,
μ
iBe the utilization rate of equipment and installations of professional route through node (the sourcesink node that contains business).
Specifically may further comprise the steps:
Step 1: for total amount is the business of N, and parameter n is set, and represents n bar business, and the n initial value gets 1;
Step 2:
Step 2-1: analyze the route of n bar business, detect in whether professional sourcesink node be included in the ASON, be execution in step 2-2 then, otherwise report an error (as shown in Figure 1), show that there are defective in this network or business demand;
Step 2-2: traversal comes from starting point to all professional routes of sourcesink node, and whether the surplus resources that detects these professional routes satisfies the requirement of service bandwidth;
Step 2-3: after above-mentioned detection,, then report an error, show that this business can't find the carrying route if satisfactory professional route quantity is 0; As if professional route quantity is 1, then the carrying route that is business with this unique route; If professional route quantity greater than 1, then changes step 3 over to;
Step 3:
A) calculate the link total length L of the professional route of each bar, and multiply by link unit price a, obtain link cost cost L * a;
B) calculate the number of nodes m of the professional route process of each bar, and multiply by node device unit price b, obtain node cost price m * b;
C) with the node device utilance μ of each professional route through each node
i(i=1 2...n) multiply by node device unit price b, and summation, calculates the use cost cost of node
Step 4:
Each cost price summation with step 3 obtains calculates the integrate-cost cost
(i=1 2...n), and selects the professional route of integrated cost cost minimum wherein to be professional carrying route;
Step 5: parameter n adds 1 automatically, repeating step 2～4, and until n＞N, all business arrangements finish.
Fig. 2 is the SDH/ASON network of 10Gb/s for link rate, and totally 8 nodes and 11 10Gb/s ASON links are formed by N1～N8.Value in the bracket on the ASON link among the figure is represented the length (unit is kilometer) and the slot efficiency of this link respectively.
The service route selecting method of the described intelligent optical network system based on the cost optimum of present embodiment may further comprise the steps:
Whether the first step can provide passage for business demand for detecting ASON: at first, judge the reasonability of network topology, check promptly whether the professional up and down node of ASON comprises professional sourcesink node, if exist network node not contain the situation of service source destination node, the processing that then reports an error, the prompting network topology can't satisfy business demand.Secondly, whether the surplus resources of judging the professional route that travels through out satisfies the service bandwidth demand.If do not satisfy the professional route of service bandwidth demand, the processing that then reports an error, the prompting network can't provide the carrying route for this business.Only have 1 if satisfy the professional route of service bandwidth demand, then finish, need not to carry out following comparison, this unique professional route is the route that the inventive method is chosen.If, then carrying out for second step greater than 1, the professional route that satisfies the service bandwidth demand calculates.
155Mb/s business with N1-N5 is an example, supposes the network capacity abundance of giving, and can not cause the restriction of professional Route Selection, and the optional professional route that travels through out has 5, is respectively professional route 1:N1-N2-N3-N4-N5; Professional route 2:N1-N6-N7-N5; Professional route 3:N1-N6-N4-N5; Professional route 4:N1-N8-N5; Professional route 5:N1-N8-N3-N4-N5.
Second step calculated the link total length of the professional route of each bar.According to the cable length that Fig. 2 provides, obtain the link total length of above these 5 professional routes, the link total length of professional route 1～5 is followed successively by: 900km, 950km, 1000km, 1800km and 1950km.
The 3rd step calculated the number of nodes (containing professional sourcesink node) of the professional route process of each bar.According to networking diagram 2, the number of nodes of professional route 1～5 process is followed successively by: 5,4,4,3,5.
The 4th step calculated each professional route and passes through each node cost value of (containing professional sourcesink node), represented with node capacity utilance respectively.According to link utilization, obtain the capacity utilance of each node of N1～N8, be respectively 50%, 70%, 30%, 30%, 30%, 50%, 10% and 30%.
The 5th step was utilized formula
Calculate the integrated cost of each the professional route that combines linkage length, jumping figure and node cost, and compare, select a wherein professional route of business of integrated cost minimum.
According to engineering experience in the past, at 1 155Mb/s business, the actual track unit cost that is carried on the SDH/ASON network on the wavelength-division system is 0.8 yuan/km, and the cost of node device is 400 yuan.As calculated, the integrated cost of professional route 1～5 is respectively:
Route 1:V1=900km * 0.8 yuan/km+5 * 400 yuan+(50%+70%+30%+30%+30%) * 400 yuan=3560 yuan
Route 2:V2=950km * 0.8 yuan/km+4 * 400 yuan+(50%+30%+50%+10%) * 400 yuan=2920 yuan
Route 3:V3=1000km * 0.8 yuan/km+4 * 400 yuan+(50%+30%+30%+50%) * 400 yuan=3040 yuan
Route 4:V4=1800km * 0.8 yuan/km+3 * 400 yuan+(50%+30%+30%) * 400 yuan=3080 yuan
Route 5:V5=1950km * 0.8 yuan/km+5 * 400 yuan+(50%+30%+30%+30%+30%) * 400=4240 unit
Through comparing, the inventive method can be selected the minimum professional route 2 of integrated cost.
At same network topology and business demand, adopt the different business route selection method can obtain different results.With networking diagram 2 is example, adopts critical path method (CPM) can select professional route 1; Adopt the fewest number of hops method can select professional route 4; Adopt the flow equalization method can select professional route 5.Compare the most frequently used critical path method (CPM) at present, for a certain 155M/s business demand, the optimization degree based on cost of the present invention can reach 15%～20%.
Claims (2)
1. service route selecting method based on the intelligent optical network system of cost optimum, comprise selection to the carrying route of business, it is characterized in that comprising following steps: find out all from starting point to the sourcesink node and satisfy the professional route of service bandwidth requirement, select the integrate-cost cost
Minimum professional route is professional carrying route; Wherein: L is the link total length of the professional route of each bar; A is the link unit price;
M is the number of nodes of the professional route process of each bar; B is the node device unit price,
μ
iBe the utilization rate of equipment and installations of professional route through node.
2. the service route selecting method of the intelligent optical network system based on the cost optimum according to claim 1 is characterized in that may further comprise the steps:
Step 1: for total amount is the business of N, and parameter n is set, and represents n bar business, and the n initial value gets 1;
Step 2:
Step 2-1: analyze the route of n bar business, detect in whether professional sourcesink node be included in the ASON, be execution in step 2-2 then, otherwise report an error, show that there are defective in this network or business demand;
Step 2-2: traversal comes from starting point to all professional routes of sourcesink node, and whether the surplus resources that detects these professional routes satisfies the requirement of service bandwidth;
Step 2-3: after above-mentioned detection,, then report an error, show that this business can't find the carrying route if satisfactory professional route quantity is 0; As if professional route quantity is 1, then the carrying route that is business with this unique route; If professional route quantity greater than 1, then changes step 3 over to;
Step 3:
A) calculate the link total length L of the professional route of each bar, and multiply by link unit price a, obtain link cost cost L * a;
B) calculate the number of nodes m of the professional route process of each bar, and multiply by node device unit price b, obtain node cost price m * b;
C) with the node device utilance μ of each professional route through each node
i(i=1 2...n) multiply by node device unit price b, and summation, calculates the use cost cost of node
Step 4:
Each cost price summation with step 3 obtains calculates the integrate-cost cost
And select the professional route of integrated cost cost minimum wherein to be professional carrying route;
Step 5: parameter n adds 1 automatically, repeating step 2～4, and until n＞N, all business arrangements finish.
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| CN103107941A (en) * | 2011-11-09 | 2013-05-15 | 中国移动通信集团设计院有限公司 | Optical cable resource automatic scheduling device and method |
| CN103166774A (en) * | 2011-12-09 | 2013-06-19 | 中国移动通信集团福建有限公司 | Checking method and device of the same route |
| CN103997458A (en) * | 2014-03-18 | 2014-08-20 | 华信咨询设计研究院有限公司 | Node cost optimal route selection method based on optical-electrical hybrid cross-connection |
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| CN103107941A (en) * | 2011-11-09 | 2013-05-15 | 中国移动通信集团设计院有限公司 | Optical cable resource automatic scheduling device and method |
| CN103107941B (en) * | 2011-11-09 | 2016-04-27 | 中国移动通信集团设计院有限公司 | Cable resource autodispatcher and method |
| CN103166774B (en) * | 2011-12-09 | 2016-05-25 | 中国移动通信集团福建有限公司 | With route arrange distinguish method and device |
| CN103166774A (en) * | 2011-12-09 | 2013-06-19 | 中国移动通信集团福建有限公司 | Checking method and device of the same route |
| CN103997458A (en) * | 2014-03-18 | 2014-08-20 | 华信咨询设计研究院有限公司 | Node cost optimal route selection method based on optical-electrical hybrid cross-connection |
| CN103997458B (en) * | 2014-03-18 | 2017-04-12 | 华信咨询设计研究院有限公司 | Node cost optimal route selection method based on optical-electrical hybrid cross-connection |
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| CN105207905B (en) * | 2014-06-19 | 2018-11-20 | 中国电信股份有限公司 | Route selection method and device |
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| CN105553843A (en) * | 2015-12-15 | 2016-05-04 | 国网冀北电力有限公司信息通信分公司 | Transmission line relay protection control service channel route configuration method and device |
| CN105553843B (en) * | 2015-12-15 | 2018-10-19 | 国网冀北电力有限公司信息通信分公司 | A kind of relay protection of transmission line control service channel method for configuring route and device |
| CN106934151A (en) * | 2017-03-10 | 2017-07-07 | 华信咨询设计研究院有限公司 | A kind of a plurality of cable Automatic-searching method for routing |
| CN106934151B (en) * | 2017-03-10 | 2020-08-21 | 华信咨询设计研究院有限公司 | Automatic routing searching method for multiple cables |
| CN109429117A (en) * | 2017-08-30 | 2019-03-05 | 中国移动通信集团设计院有限公司 | Route selection method and equipment |
| CN107682108A (en) * | 2017-11-27 | 2018-02-09 | 国网浙江省电力有限公司 | A kind of optical transfer network OTN route selection method |
| CN114363737A (en) * | 2021-12-09 | 2022-04-15 | 国网新疆电力有限公司 | Optical transmission network resource optimization configuration method, system and storage medium thereof |
| CN114363737B (en) * | 2021-12-09 | 2024-02-20 | 国网新疆电力有限公司 | Optical transmission network resource optimal configuration method, system and storage medium thereof |
| CN114827012A (en) * | 2022-05-11 | 2022-07-29 | 华信咨询设计研究院有限公司 | Routing method and related components |
| CN114827012B (en) * | 2022-05-11 | 2023-08-11 | 华信咨询设计研究院有限公司 | Routing method and related components |
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