CN107819603A - The analysis method and platform of OTN network bearer resource potential abilities - Google Patents

The analysis method and platform of OTN network bearer resource potential abilities Download PDF

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Publication number
CN107819603A
CN107819603A CN201610824926.1A CN201610824926A CN107819603A CN 107819603 A CN107819603 A CN 107819603A CN 201610824926 A CN201610824926 A CN 201610824926A CN 107819603 A CN107819603 A CN 107819603A
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China
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port
equipment
service
ctp
otn
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CN201610824926.1A
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CN107819603B (en
Inventor
许健荣
张淑建
林显达
黄国斌
明健
杨炜杰
王柯
唐亮
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14—Network analysis or design
    • H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention discloses a kind of analysis method and platform of OTN network bearer resources potential ability.This method includes：The professional ability characteristic of board and port to OTN equipment is modeled to form OTN capacity of equipment collection；And the potential ability based on the OTN capacities of equipment set pair OTN equipment bearing resources is assessed.By to OTN equipment skill modelings, providing underlying parameter information support for specific service fulfillment, solving the problems, such as the OTN Internet resources bearing capacity evaluations under complicated networking.

Description

The analysis method and platform of OTN network bearer resource potential abilities
Technical field
The present invention relates to communication technical field, more particularly to a kind of analysis method of OTN network bearer resources potential ability And platform.
Background technology
With the continuous development of communication network optical transport technology, based on OTN (Optical Transport Network, light Transmission net) network big bandwidth type service fulfillment demand it is increasing.Meanwhile on network operation need to from network-oriented to towards Client, the transformation of business, adaptation are automated open-minded end to end based on business.
However, OTN network technologies are complicated, variation is presented in networking, and traditional network carrying analysis ability is difficult to evaluate OTN Internet resources bearing capacitys under complicated networking, therefore, it is difficult to quickly meet various requirement of the client to business, are unfavorable for industry The centralization of business is opened and managed automatically.
The content of the invention
The present invention needs the technical problem solving to be：A kind of analysis of OTN network bearer resources potential ability is provided Method.
According to the first aspect of the invention, there is provided a kind of analysis method of OTN network bearer resources potential ability, bag Include：The professional ability characteristic of board and port to OTN equipment is modeled to form OTN capacity of equipment collection；And based on institute The potential ability for stating OTN equipment bearing resources described in OTN capacity of equipment set pairs is assessed.
In one embodiment, the professional ability characteristic of the board to OTN equipment and port is modeled is set with forming OTN The step of standby capability set, includes：The ability of the OTN equipment is connected into docking characteristic with port according to port self-characteristic to carry out Modeling, form capacity of equipment collection.
In one embodiment, the potential ability based on OTN equipment bearing resources described in the OTN capacities of equipment set pair is entered The step of row is assessed includes：The potential ability of the description OTN equipment bearing resource is obtained based on the OTN capacities of equipment collection Evaluation factor, to assess the OTN equipment.
In one embodiment, the evaluation factor includes：The type of service of the port support, the port are supported Connection end points CTP types, the multiplex mode of port support and the multiplexing road that business mapping mode, the port are supported Footpath, the board Flexible timeslot tenability, available port resource, the port available time slot resource, equipment, which can be used, intersects money Source, the port optical module serial parallel type and the port optical module transfer distance type.
In one embodiment, methods described also includes：Routing procedure is carried out by way of port by the evaluation factor Filtering, and obtained by route search algorithm and meet the whole sensible route of business.
In one embodiment, the step of being filtered by the evaluation factor to routing procedure by way of port includes： The business need and the evaluation factor to activate the service as needed selects the port for meeting the business need；And according to Present port through acquisition, the business need and the evaluation factor select next-hop port.
In one embodiment, the business need and the evaluation factor to activate the service as needed, which is selected, meets the industry The step of port for being engaged in requiring, includes：Business need, the available port of equipment support and the needs to activate the service as needed CTP service layers rank obtains idle CTP；Judge whether the corresponding ports of the idle CTP support Flexible timeslot；If it is, Number of time slots as needed obtains the free timeslot of physical terminal point PTP ports corresponding to the idle CTP, otherwise clear and definite institute The association time slot for stating idle CTP is fixed time slot；And judge the intersection of the network element corresponding to the corresponding ports of the idle CTP Whether resource capability meets the requirement of service bandwidth；If it is, completing to select the port for meeting business need, otherwise obtain again Obtain idle CTP.
In one embodiment, the business need includes：Type of service requirement and the requirement of business mapping mode；It is described to set The standby available port supported includes：The various mapping modes that the available port and equipment for the miscellaneous service type that equipment is supported are supported Available port.
In one embodiment, business need, the available port of equipment support and the needs to activate the service as needed The step of CTP service layers rank acquisition idle CTP, includes：The type of service requirement to activate the service as needed and equipment are supported The available port of miscellaneous service type obtain the set of available type of service port；The business mapping to activate the service as needed The available port for the various mapping modes that mode is required and equipment is supported obtains available business mapping mode port set；Root The intersecting set of both is obtained according to type of service port set and business mapping mode port set；And to institute Each port in intersecting set is stated, the free time is selected in the available CTP set of CTP service layers rank slave unit as needed CTP。
In one embodiment, selected according to the present port, the business need and the evaluation factor that have obtained The step of next-hop port, includes：Next-hop port is obtained based on the business need and the evaluation factor；Judge described work as Whether needed between front port and the next-hop port across OCH or OTUk physical connections, if it is, working as front end described in relatively Mouth and the corresponding CTP of next-hop port multiplexed path mode, select the consistent next-hop port of multiplex mode；And sentence It is disconnected whether to need physics jumper connection between the present port and the next-hop port；If it is, according to present port with The optical module serial parallel pattern of one jump port is consistent, and the transmission range that present port and the optical module of next-hop port are supported Principle more than optical path distance selects required present port and next-hop port.
The invention provides a kind of analysis method of OTN network bearer resources potential ability, by being built to OTN capacities of equipment Mould, underlying parameter information support is provided for specific service fulfillment, the OTN Internet resources bearing capacitys solved under complicated networking are commented Estimate problem.
Further, routing procedure is filtered by way of port by evaluation factor, by route search algorithm, finally Find and meet the whole sensible route of business, improve the search capability of network carrying route during service fulfillment.
According to the second aspect of the invention, there is provided a kind of platform for being used to analyze OTN network bearer resource potential abilities, Including：Analytic unit, the professional ability characteristic for the board to OTN equipment and port are modeled to form OTN equipment energy Power collection；And assessment unit, enter for the potential ability based on OTN equipment bearing resources described in the OTN capacities of equipment set pair Row is assessed.
In one embodiment, the analytic unit by the ability of the OTN equipment according to port self-characteristic and port Connection docking characteristic is modeled, and forms capacity of equipment collection.
In one embodiment, the assessment unit obtains the description OTN equipment based on the OTN capacities of equipment collection and held The evaluation factor of the potential ability of resource is carried, to assess the OTN equipment.
In one embodiment, the evaluation factor includes：The type of service of the port support, the port are supported The multiplex mode and multiplexed path, the board that business mapping mode, the CTP types of port support, the port are supported Flexible timeslot tenability, available port resource, the port available time slot resource, equipment, which can be used, intersects resource, the port Optical module serial parallel type and the port optical module transfer distance type.
In one embodiment, the platform also includes：Route acquisition unit, for by the evaluation factor to route Process is filtered by way of port, and is obtained by route search algorithm and met the whole sensible route of business.
In one embodiment, the route acquisition unit activates the service as needed business need and the assessment because Son selects the port for meeting the business need；And according to present port, the business need and the institute's commentary obtained Estimate the factor and select next-hop port.
In one embodiment, the route acquisition unit includes：Idle CTP acquisition modules, for open-minded as needed Business need, the available port of equipment support and the CTP service layers rank of needs of business obtain idle CTP；Time slot judges mould Block, for judging whether the corresponding ports of the idle CTP support Flexible timeslot；If it is, number of time slots as needed The free timeslot of PTP ports corresponding to the idle CTP is obtained, when otherwise clearly described idle CTP association time slot is fixes Gap；And service bandwidth judge module, for judging the intersection resource energy of the network element corresponding to the corresponding ports of the idle CTP Whether power meets the requirement of service bandwidth；If it is, completing to select the port for meeting business need, the free time is otherwise regained CTP。
In one embodiment, the business need includes：Type of service requirement and the requirement of business mapping mode；It is described to set The standby available port supported includes：The various mapping modes that the available port and equipment for the miscellaneous service type that equipment is supported are supported Available port.
In one embodiment, the idle CTP acquisition modules include：First module, for activating the service as needed Type of service requirement and the available port of miscellaneous service type supported of equipment obtain the set of available type of service port； Second module, the various mapping modes supported for the business mapping mode requirement to activate the service as needed and equipment can Available business mapping mode port is obtained with port to gather；3rd module, for according to the type of service port set and The business mapping mode port set obtains the intersecting set of both；And the 4th module, for the intersecting set In each port, CTP service layers rank slave unit as needed available CTP set in select idle CTP.
In one embodiment, the route acquisition unit is based on the business need and evaluation factor acquisition is next Jump port；The route acquisition unit includes：Across OCH or OTUk physical connection judge modules, for judging the present port Whether needed across OCH or OTUk physical connections between the next-hop port, if it is, the present port and institute The corresponding CTP of next-hop port multiplexed path mode is stated, selects the consistent next-hop port of multiplex mode；And physics jumper connection Judge module, for judging whether need physics jumper connection between the present port and the next-hop port；If it is, according to It is consistent with the optical module serial parallel pattern of next-hop port according to present port, and present port and the optical module of next-hop port The principle that the transmission range of support is more than optical path distance selects required present port and next-hop port.
The invention provides a kind of platform for being used to analyze OTN network bearer resource potential abilities.On the platform, pass through To OTN equipment skill modelings, underlying parameter information support is provided for specific service fulfillment, solves the OTN nets under complicated networking Network resource bearing capacity evaluation problem.
Further, on the platform, routing procedure is filtered by way of port by evaluation factor, searched by route Rope algorithm, eventually find and meet the whole sensible route of business, improve the search of network carrying route during service fulfillment Ability.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing of a part for constitution instruction describes embodiments of the invention, and is used to solve together with the description Release the principle of the present invention.
Referring to the drawings, according to following detailed description, the present invention can be more clearly understood, wherein：
Fig. 1 is the stream for the analysis method for showing OTN network bearer resources potential ability according to an embodiment of the invention Cheng Tu.
Fig. 2 is the analysis method for showing OTN network bearer resources potential ability in accordance with another embodiment of the present invention Flow chart.
Fig. 3 is the flow chart for the method for showing the port according to an embodiment of the invention selected and meet business need.
Fig. 4 is the flow for the method for showing the port in accordance with another embodiment of the present invention selected and meet business need Figure.
Fig. 5 is the flow chart for showing the method according to an embodiment of the invention for selecting next-hop port.
Fig. 6 be schematically show it is according to an embodiment of the invention be used for analyze the potential energy of OTN network bearer resources The structure chart of the platform of power.
Fig. 7 is the structure chart for schematically showing route acquisition unit according to an embodiment of the invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally The scope of invention.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality Proportionate relationship draw.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
With the development of OTN network technologies, OTN equipment gradually possesses flexibly intersection, intelligence distribution and big broadband services and held The ability of load.OTN hierarchy can be divided into electric layer and photosphere successively from top to bottom.Electric layer can include：OPUk (Optical channel Payload Unit, light-path Payload Unit), ODUk (Optical channel Data Unit, Light-path data cell) and OTUk (Optical channel Transport Unit, light-path delivery unit), wherein k= 0,1,2,3,4.Photosphere can include：OCH (Optical Channel,
Optical channel), OMS (Optical Multiplex Section, optical multiplexing section) and OTS (Optical Transmission Section, light delivery section).
Fig. 1 is the stream for the analysis method for showing OTN network bearer resources potential ability according to an embodiment of the invention Cheng Tu.
In step S101, the professional ability characteristic of board and port to OTN equipment is modeled to form OTN equipment energy Power collection.The OTN capacity of equipment collection is the set of professional ability possessed by OTN equipment, can provide base for specific service fulfillment Plinth parameter information supports.
In one embodiment, step S101 can include：By the ability of OTN equipment according to port self-characteristic and end Mouth connection docking characteristic is modeled, and forms capacity of equipment collection.
In one embodiment, for port self-characteristic, inhomogeneity can be described with the physical port characteristic of slave unit The port capabilities collection entity of type equipment and board.For example, the physical port characteristic of equipment can include it is following in it is at least one： Vendor name, network element model, plate type, release type, physical port mark, the type of service supported, the mapping side supported Formula, CTP (Connection termination point, the connection end points) list of types supported, the multiplex mode supported With the ODUk of support multiplexed path level etc..It is as follows such as table 1 is physical port property list.
The physical port property list of table 1
Explanation：String represents character string type.
In one embodiment, port connection docking characteristic can be described by least one in lower Column Properties：Factory Family's title, network element model, plate type, version information, physical port mark, the serial parallel situation of optical module and optical module are supported Transmission range etc..It is such as shown in table 2.
The COM1 of table 2 connection docking property list
In one embodiment, the ability characteristics of OTN equipment plate cards can be retouched by least one in lower Column Properties State：Vendor name, network element model, plate type, version information and whether support Flexible timeslot etc..It is such as shown in table 3.
Table 3OTN equipment plate card property lists
Attribute-name Attribute type Explanation
Vendor name String
Network element model String
Plate type String
Version information String
Whether Flexible timeslot is supported String Y or N
Fig. 1 is returned to, in step S102, the potential ability based on OTN capacity of equipment set pair OTN equipment bearing resources is commented Estimate.
In one embodiment, step S102 can include：Description OTN equipment is obtained based on OTN capacities of equipment collection to hold The evaluation factor of the potential ability of resource is carried, to assess the OTN equipment.
By the capacity of equipment collection that above table 1,2 and 3 is reflected, equipment itself had both been described comprehensively can be used for business and opened Logical ability, also illustrate the ability that equipment is docked with miscellaneous equipment.Based on the ability, equipment potential ability is further sorted out 10 evaluation factors.For example, these evaluation factors can include：The business that the type of service of port support, port are supported is reflected Penetrate mode, port support CTP types, port support multiplex mode and multiplexed path, board Flexible timeslot tenability, can With port resource (can include PTP (Physical Termination Point, physical terminal point) and CTP), port can use Time interval resource, equipment, which can be used, intersects resource, port optical module serial parallel type and port optical module transfer distance type.To assessing The specific targets of the factor are described as follows：
1st, according to the type of service that can use PTP port resources and port support, the miscellaneous service type that equipment is supported is formed Port is gathered, and is designated as Btv (t represents miscellaneous service type, v represents different service rates).
2nd, according to the business mapping mode that can use PTP port resources and port support, the miscellaneous service that equipment is supported is formed Mapped port set, it is designated as Mv (v represents different service rates).
3rd, the CTP types supported according to available CTP port resources and port, the available CTP set of equipment, note are formed For Lu (u represents different CTP types).
4th, equipment available time slot set, the available time slot sets in each port of equipment is described, are designated as TS.
5th, equipment Flexible timeslot tenability, description equipment is to support fixed time slot, or Flexible timeslot, is designated as C.
6th, port optical module serial parallel type, equipment optical module serial parallel type is described, is designated as SC.
7th, port optical module transfer distance type, description equipment optical module support transmission apart from situation, be designated as TD.
8th, equipment, which can be used, intersects resource, and each speed level of description equipment, which can be used, intersects resource situation, and being designated as Xv, (v is represented not Same service rate).
So far, a kind of analysis method of OTN network bearer resources potential ability is above mentioned embodiment provided.By to OTN Equipment skill modeling, underlying parameter information support is provided for specific service fulfillment, solve the OTN Internet resources under complicated networking Bearing capacity evaluation problem.
Fig. 2 is the analysis method for showing OTN network bearer resources potential ability in accordance with another embodiment of the present invention Flow chart.
In step S201, the professional ability characteristic of board and port to OTN equipment is modeled to form OTN equipment energy Power collection.
In step S202, the potential ability based on OTN capacity of equipment set pair OTN equipment bearing resources is assessed.
Above-mentioned steps S201 and step S202 is same or similar with the step S101 in Fig. 1 and step S102 respectively, here It is not described in detail.
In step S203, routing procedure is filtered by way of port by evaluation factor, and pass through route search algorithm Obtain and meet the whole sensible route of business.For example, route search algorithm can use the BFS of prior art to calculate Method.
In the above-described embodiments, during service fulfillment, in addition to meeting that the whole head and the tail of business route are sensible, pass through The index of above-mentioned evaluation factor filters to routing procedure by way of port, by route search algorithm, eventually finds and meets industry The whole sensible route of business, improve the search capability of network carrying route during service fulfillment.
In one embodiment, the step of being filtered by evaluation factor to routing procedure by way of port can include： The business need and evaluation factor that activate the service as needed select the port for meeting business need.Alternatively, by assess because The step of son filters to routing procedure by way of port can also include：According to obtained present port, business need Next-hop port is selected with evaluation factor.
Fig. 3 is the flow chart for the method for showing the port according to an embodiment of the invention selected and meet business need. In one embodiment, the step of Fig. 3 describes the business need to activate the service as needed and evaluation factor is selected and meets industry The process for the port that business requires.
In step S301, the CTP clothes of the business need to activate the service as needed, the available port that equipment is supported and needs Business level does not obtain idle CTP.For example, the business need can include：Type of service requirement and the requirement of business mapping mode.Example Such as, the available port that equipment is supported can include：The available port and equipment for the miscellaneous service type that equipment is supported are supported each The available port of kind mapping mode.
In step S302, judge whether idle CTP corresponding ports support Flexible timeslot.If it is, process enters step Rapid S303, else process enter step S304.
In step S303, number of time slots as needed obtains the free timeslot of PTP ports corresponding to idle CTP.For example, The free time that idle CTP corresponds to PTP ports is selected in the number of time slots slave unit available time slot set TS as needed to each CTP Time slot.
In step S304, the association time slot for specifying idle CTP is fixed time slot.
In step S305, judge whether the intersection resource capability of the network element corresponding to idle CTP corresponding ports meets industry The requirement for bandwidth of being engaged in.If it is, process enters step S306, otherwise return to step S301, that is, regain idle CTP.
In step S306, complete to select the port for meeting business need.
The business need to activate the service as needed and evaluation factor for above embodiments enabling one embodiment are selected Meet the process of the port of business need.
Fig. 4 is the flow for the method for showing the port in accordance with another embodiment of the present invention selected and meet business need Figure.In one embodiment, the step S301 in Fig. 3 can include step S401, S402, S403 and S404 in Fig. 4.
In step SS401, the type of service requirement to activate the service as needed and the miscellaneous service type of equipment support Available port (such as Btv can be designated as) obtain available type of service port set (such as Btv1 can be designated as).
For example, it is desired to situation about activating the service is as follows：Business starting point is P1, business terminating point is P2, type of service is 10GE_LAN, service bandwidth 10G, business mapping mode are GMP (Generic Mapping Procedure, general mapping rule Journey).
From business starting point P1, all devices of the point are obtained, it is assumed that the port inventory of the P1 point devices such as institute of table 4 Showing, the port for the miscellaneous service type that equipment is supported is filtered with type of service, service bandwidth, obtains set Btv1, Btv1 can be
NE-TYPE1/BD-TYPE2/PORT1＆PORT2,
NE-TYPE1/BD-TYPE3/PORT1＆PORT2,
NE-TYPE1/BD-TYPE4/PORT1＆PORT2,
NE-TYPE1/BD-TYPE5/PORT1&PORT2}。
The port identity table of table 4P1 point devices
In step SS402, the various mappings of the business mapping mode requirement to activate the service as needed and equipment support The available port (such as can be designated as Mv) of mode obtains available business mapping mode port set and (such as can be designated as Mv1)。
In step SS403, the phase of both is obtained according to the set of type of service port and the set of business mapping mode port Occur simultaneously and close (such as S1 can be designated as).That is S1=Btv1 ∩ Mv1.
In another embodiment, business mapping mode can also further be used in each port in set Btv1 (such as GMP) is filtered, and obtains set S1.Such as according to the Btv1 and business mapping mode GMP being previously obtained, it can obtain S1 is
NE-TYPE1/BD-TYPE2/PORT1＆PORT2,
NE-TYPE1/BD-TYPE4/PORT1＆PORT2,
NE-TYPE1/BD-TYPE5/PORT1&PORT2}。
Because BD-TYPE4, BD-TYPE5 are circuit board, it can first draw and meet that the tributary port of business need is NE- TYPE1/BD-TYPE2/PORT1&PORT2。
In step SS404, to each port in intersecting set, CTP service layers rank slave unit as needed can Idle CTP is selected in CTP set.For example, to each port in intersecting set S1, according to service bandwidth 10G requirement Select an idle CTP1 of ODU2 service layers rank.So far, what business need, the equipment to activate the service as needed was supported can An idle CTP is obtained with port and the CTP service layers rank needed.
In step SS405, judge whether idle CTP corresponding ports support Flexible timeslot.If it is, process enters step Rapid S406, else process enter step S407.
For example, judging whether CTP1 corresponding ports support Flexible timeslot, match somebody with somebody if it does not, need not then carry out time slot Put, if supported, select 8 ODU0 time slots corresponding to service bandwidth 10G.For example, the Flexible timeslot ability of P1 point boards can With shown in reference table 5.
Table 5P1 point board property lists
Producer Network element model Plate type Version information Whether Flexible timeslot is supported
Vendor-A NE-TPYE1 BD-TYPE1 BD-VERSION1 It is
Vendor-A NE-TPYE1 BD-TYPE2 BD-VERSION2 It is
Vendor-A NE-TPYE1 BD-TYPE3 BD-VERSION3 It is
Vendor-A NE-TPYE1 BD-TYPE4 BD-VERSION4 It is no
Vendor-A NE-TPYE1 BD-TYPE5 BD-VERSION5 It is
Selected in step SS406, number of time slots slave unit available time slot set as needed corresponding to idle CTP The free timeslot of PTP ports.
In step SS407, the association time slot for specifying idle CTP is fixed time slot.
In step SS408, judge whether the intersection resource capability of the network element corresponding to idle CTP corresponding ports meets industry The requirement for bandwidth of being engaged in.If it is, process enters step S409, else process return to step S404, i.e., the free time is selected again CTP。
For example, whether the cross-connect matrix active volume that analysis CTP1 corresponds to network element meets the capacity that 8 ODU0 intersect, The return to step S404 if being unsatisfactory for, if it is satisfied, then completing to select the port for meeting business need.In another embodiment In, if it is satisfied, then carrying out selecting for line port and its idle CTP, port selects logic and may be referred to step SS401, empty Not busy CTP selects logic and may be referred to step S404 and S405.
In step S409, complete to select the port for meeting business need.
The business need to activate the service as needed and evaluation factor for above embodiments enabling another embodiment are chosen Choosing meets the process of the port of business need.
Fig. 5 is the flow chart for showing the method according to an embodiment of the invention for selecting next-hop port.In a reality Apply in example, describe the step of Fig. 5 and next-hop port is selected according to the present port, business need and the evaluation factor that have obtained Process.
In step S501, next-hop port is obtained based on business need and evaluation factor.For example, can be by shown in Fig. 4 Flow obtain next-hop port.
In step S502, judge whether needed across OCH or OTUk physical connections between present port and next-hop port.Such as Fruit is that then process enters step S503, and else process enters step S504.
In step S503, compare present port CTP corresponding to next-hop port multiplexed path mode, select multiplexing side The consistent next-hop port of formula.
In step S504, judge physics jumper connection whether is needed between present port and next-hop port.If it is, process Into step S505, else process enters step S506.
It is consistent with the optical module serial parallel pattern of next-hop port according to present port in step S505, and work as front end Mouthful transmission range supported with the optical module of next-hop port be more than optical path distance principle select required present port and Next-hop port.For example, the optical module serial parallel SC according to port selects feasible present port and next-hop port；Then compare Compared with port optical module support distance type TD values whether be more than two-port between optical path distance, select feasible present port with Next-hop port.
In step S506, next-hop port is selected in completion.
In this embodiment, need when OCH or OTUk physical connections, need during business route search, between port Whether the multiplexed path for assessing the corresponding CTP in two ports is consistent.In the case of physical connection jumper connection is needed between port, currently The optical module serial parallel pattern of port and next-hop port should be consistent, and the transmission range that two-port optical module is supported should be greater than light Road distance, it could dock.
Fig. 6 be schematically show it is according to an embodiment of the invention be used for analyze the potential energy of OTN network bearer resources The structure chart of the platform of power.
As shown in fig. 6, platform 600 can include：Analytic unit 601 and assessment unit 602.
Analytic unit 601 is used to the board of OTN equipment and the professional ability characteristic of port are modeled and set to form OTN Standby capability set.For example, the ability of OTN equipment can be connected docking with port by the analytic unit 601 according to port self-characteristic Characteristic is modeled, and forms capacity of equipment collection.
Assessment unit 602 is assessed for the potential ability based on OTN capacity of equipment set pair OTN equipment bearing resources. For example, the assessment unit 602 can obtain commenting for the potential ability of description OTN equipment bearing resources based on OTN capacities of equipment collection The factor is estimated, to assess OTN equipment.
So far, a kind of platform for being used to analyze OTN network bearer resource potential abilities is above mentioned embodiment provided.The platform By to OTN equipment skill modelings, providing underlying parameter information support for specific service fulfillment, solving under complicated networking OTN Internet resources bearing capacity evaluation problems.
In one embodiment, the evaluation factor can include：The business that the type of service of port support, port are supported is reflected Penetrate mode, port support CTP types, port support multiplex mode and multiplexed path, board Flexible timeslot tenability, can It can be used with port resource, port available time slot resource, equipment and intersect resource, port optical module serial parallel type and port optical module Transmission range type.
In one embodiment, as shown in fig. 6, platform 600 can also include route acquisition unit 603.The route acquisition Unit 603 is used to filter routing procedure by way of port by evaluation factor, and is met by route search algorithm The whole sensible route of business.
For example, business need and evaluation factor that the route acquisition unit 603 can activate the service as needed select symbol Close the port of business need；And next-hop port is selected according to present port, business need and the evaluation factor obtained.
In the above-described embodiments, during service fulfillment, in addition to meeting that the whole head and the tail of business route are sensible, this is flat Platform can be filtered by above-mentioned evaluation factor to routing procedure by way of port, by route search algorithm, eventually find symbol The whole sensible route of conjunction business, improve the search capability of network carrying route during service fulfillment.
Fig. 7 is the structure chart for schematically showing route acquisition unit according to an embodiment of the invention.
As shown in fig. 7, the route acquisition unit 603 can include：Idle CTP acquisition modules 613, time slot judge module 623 and service bandwidth judge module 633.
Idle CTP acquisition modules 613 be used for activate the service as needed business need, equipment support available port and The CTP service layers rank needed obtains idle CTP.
For example, the business need can include：Type of service requirement and the requirement of business mapping mode.In another example the equipment The available port of support can include：The various mapping sides that the available port and equipment for the miscellaneous service type that equipment is supported are supported The available port of formula.
Time slot judge module 623 is used to judge whether idle CTP corresponding ports support Flexible timeslot；If it is, root The free timeslot of PTP ports corresponding to the idle CTP is obtained according to the number of time slots of needs, otherwise the clearly association of the idle CTP Time slot is fixed time slot.
Service bandwidth judge module 633 is used for the intersection resource energy for judging the network element corresponding to idle CTP corresponding ports Whether power meets the requirement of service bandwidth；If it is, completing to select the port for meeting business need, the free time is otherwise regained CTP。
In one embodiment, as shown in fig. 7, idle CTP acquisition modules 613 can include：First module 6131, second Module 6132, the 3rd module 6133 and the 4th module 6134.
The miscellaneous service that first module 6131 is used for the type of service requirement to activate the service as needed and equipment is supported The available port of type obtains available type of service port set.
Second module 6132 is supported various for the business mapping mode requirement to activate the service as needed and equipment The available port of mapping mode obtains available business mapping mode port set.
3rd module 6133 is used for according to both the set of type of service port and the set acquisition of business mapping mode port Intersecting set.
4th module 6134 is used for each port in intersecting set, CTP service layers rank slave unit as needed Available CTP set in select idle CTP.
In one embodiment, route acquisition unit 603 can be based on business need and evaluation factor obtains next-hop end Mouthful.For example, can using above-mentioned idle CTP acquisition modules 613, time slot judge module 623 and service bandwidth judge module 633 come Obtain next-hop port.
In one embodiment, as shown in fig. 7, route acquisition unit 603 can also include across OCH or OTUk physical connections Judge module 643.It should be used to judge between present port and next-hop port across OCH or OTUk physical connections judge module 643 Whether need across OCH or OTUk physical connections；If it is, compare present port CTP corresponding to next-hop port multiplexing Path fashion, select the consistent next-hop port of multiplex mode.
In one embodiment, as shown in fig. 7, route acquisition unit 603 can also include physics jumper connection judge module 653.The physics jumper connection judge module 653 is used to judge whether need physics jumper connection between present port and next-hop port；Such as Fruit is, then consistent with the optical module serial parallel pattern of next-hop port according to present port, and present port and next-hop end The principle that the transmission range that the optical module of mouth is supported is more than optical path distance selects required present port and next-hop port.
The present invention possesses advantages below：
(1) by being modeled on comprehensive operation platform to OTN equipment plate cards, port capabilities, formation OTN capacity of equipment collection, Open offer underlying parameter information support automatically for specific OTN business to set, the network carrying is route during lifting service fulfillment Search capability.
(2) it is based on OTN capacity of equipment collection, there is provided 10 assessments that OTN network equipment bearing resources potential ability is assessed The factor, and the port selecting method during business route search, this method consider the industry of OTN equipment plate cards and port Business ability, and the available intersection resource situation of the available PTP/CTP/ time slots of branch line board, equipment, so as to draw accurately Service bearer ability, the business that effectively improves open the ability with the network optimization automatically.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, it is public that this area institute is not described Some details known.Those skilled in the art as described above, can be appreciated how to implement technology disclosed herein completely Scheme.
The method and system of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or Software, hardware, firmware any combinations come realize the present invention method and system.The said sequence of the step of for methods described Order described in detail above is not limited to merely to illustrate, the step of method of the invention, it is special unless otherwise Do not mentionlet alone bright.In addition, in certain embodiments, the present invention can be also embodied as recording program in the recording medium, these programs Including the machine readable instructions for realizing the method according to the invention.Thus, the present invention also covering storage is used to perform basis The recording medium of the program of the method for the present invention.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area Art personnel it should be understood that above example merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair Bright scope is defined by the following claims.

Claims (20)

  1. A kind of 1. analysis method of OTN network bearer resources potential ability, it is characterised in that including：
    The professional ability characteristic of board and port to OTN equipment is modeled to form OTN capacity of equipment collection；And
    Potential ability based on OTN equipment bearing resources described in the OTN capacities of equipment set pair is assessed.
  2. 2. according to the method for claim 1, it is characterised in that the professional ability characteristic of board and port to OTN equipment Be modeled is included with being formed the step of OTN capacity of equipment collection：
    The ability of the OTN equipment is connected into docking characteristic with port according to port self-characteristic to be modeled, forms equipment energy Power collection.
  3. 3. according to the method for claim 1, it is characterised in that held based on OTN equipment described in the OTN capacities of equipment set pair The step of potential ability of load resource is assessed includes：
    The evaluation factor for the potential ability for describing the OTN equipment bearing resource is obtained based on the OTN capacities of equipment collection, with right The OTN equipment is assessed.
  4. 4. according to the method for claim 3, it is characterised in that
    The evaluation factor includes：The type of service of the port support, the business mapping mode of port support, the end The multiplex mode and multiplexed path, the board Flexible timeslot branch that the connection end points CTP types of mouth support, the port are supported Hold ability, available port resource, the port available time slot resource, equipment and can use and intersect resource, the port optical module string simultaneously Row type and the port optical module transfer distance type.
  5. 5. according to the method for claim 3, it is characterised in that also include：
    Routing procedure is filtered by way of port by the evaluation factor, and is obtained by route search algorithm and meets business Whole sensible route.
  6. 6. according to the method for claim 5, it is characterised in that
    The step of being filtered by the evaluation factor to routing procedure by way of port includes：
    The business need and the evaluation factor to activate the service as needed selects the port for meeting the business need；And
    Present port, the business need and the evaluation factor according to having obtained select next-hop port.
  7. 7. according to the method for claim 6, it is characterised in that the business need to activate the service as needed and the assessment The factor, which selects the step of port for meeting the business need, to be included：
    The CTP service layers rank of the business need, the available port that equipment is supported and the needs that activate the service as needed obtains empty Not busy CTP；
    Judge whether the corresponding ports of the idle CTP support Flexible timeslot；If it is, number of time slots as needed obtains The free timeslot of physical terminal point PTP ports corresponding to the idle CTP, otherwise clearly described idle CTP association time slot be Fixed time slot；And
    Judge whether the intersection resource capability of the network element corresponding to the corresponding ports of the idle CTP meets wanting for service bandwidth Ask；If it is, completing to select the port for meeting business need, idle CTP is otherwise regained.
  8. 8. according to the method for claim 7, it is characterised in that
    The business need includes：Type of service requirement and the requirement of business mapping mode；
    The available port that the equipment is supported includes：The available port and equipment for the miscellaneous service type that equipment is supported are supported each The available port of kind mapping mode.
  9. 9. according to the method for claim 8, it is characterised in that
    The CTP service layers rank of the business need, the available port that equipment is supported and the needs that activate the service as needed obtains empty The step of not busy CTP, includes：
    The available port for the miscellaneous service type that the type of service requirement to activate the service as needed and equipment are supported obtains can Gather type of service port；
    The available port for the various mapping modes that the business mapping mode requirement to activate the service as needed and equipment are supported obtains Available business mapping mode port is taken to gather；
    The intersecting set of both is obtained according to type of service port set and business mapping mode port set；With And
    To each port in the intersecting set, in the available CTP set of CTP service layers rank slave unit as needed Select idle CTP.
  10. 10. according to the method for claim 6, it is characterised in that according to obtained present port, the business need The step of selecting next-hop port with the evaluation factor includes：
    Next-hop port is obtained based on the business need and the evaluation factor；
    Judge across optical channel OCH or light-path delivery unit whether is needed between the present port and the next-hop port OTUk physical connections, if it is, the present port and the corresponding CTP of the next-hop port multiplexed path side Formula, select the consistent next-hop port of multiplex mode；And
    Judge whether need physics jumper connection between the present port and the next-hop port；If it is, foundation works as front end Mouth is consistent with the optical module serial parallel pattern of next-hop port, and the biography that present port and the optical module of next-hop port are supported The principle that defeated distance is more than optical path distance selects required present port and next-hop port.
  11. A kind of 11. platform for being used to analyze OTN network bearer resource potential abilities, it is characterised in that including：
    Analytic unit, the professional ability characteristic for the board to OTN equipment and port are modeled to form OTN capacities of equipment Collection；And
    Assessment unit, commented for the potential ability based on OTN equipment bearing resources described in the OTN capacities of equipment set pair Estimate.
  12. 12. platform according to claim 11, it is characterised in that
    The ability of the OTN equipment is connected docking characteristic and built by the analytic unit according to port self-characteristic with port Mould, form capacity of equipment collection.
  13. 13. platform according to claim 11, it is characterised in that
    The assessment unit obtains the potential ability of the description OTN equipment bearing resource based on the OTN capacities of equipment collection Evaluation factor, to assess the OTN equipment.
  14. 14. platform according to claim 13, it is characterised in that
    The evaluation factor includes：The type of service of the port support, the business mapping mode of port support, the end Mouthful support CTP types, the port support multiplex mode and multiplexed path, the board Flexible timeslot tenability, can It can be used with port resource, the port available time slot resource, equipment and intersect resource, the port optical module serial parallel type and institute State port optical module transfer distance type.
  15. 15. platform according to claim 13, it is characterised in that also include：
    Route acquisition unit, searched for being filtered by the evaluation factor to routing procedure by way of port, and by route Rope algorithm, which obtains, meets the whole sensible route of business.
  16. 16. platform according to claim 15, it is characterised in that
    The business need and the evaluation factor that the route acquisition unit activates the service as needed, which are selected, meets the business It is required that port；And next-hop end is selected according to present port, the business need and the evaluation factor obtained Mouthful.
  17. 17. platform according to claim 16, it is characterised in that
    The route acquisition unit includes：
    Idle CTP acquisition modules, the available port and needs that business need, equipment for activating the service as needed are supported CTP service layers rank obtains idle CTP；
    Time slot judge module, for judging whether the corresponding ports of the idle CTP support Flexible timeslot；If it is, according to The number of time slots needed obtains the pass of the free timeslot, otherwise clearly described idle CTP of PTP ports corresponding to the idle CTP It is fixed time slot to join time slot；And
    Service bandwidth judge module, for judging the intersection resource capability of the network element corresponding to the corresponding ports of the idle CTP Whether the requirement of service bandwidth is met；If it is, completing to select the port for meeting business need, the free time is otherwise regained CTP。
  18. 18. platform according to claim 17, it is characterised in that
    The business need includes：Type of service requirement and the requirement of business mapping mode；
    The available port that the equipment is supported includes：The available port and equipment for the miscellaneous service type that equipment is supported are supported each The available port of kind mapping mode.
  19. 19. platform according to claim 18, it is characterised in that
    The idle CTP acquisition modules include：
    First module, for activate the service as needed type of service requirement and equipment support miscellaneous service type can Available type of service port is obtained with port to gather；
    Second module, the various mapping modes supported for the business mapping mode requirement to activate the service as needed and equipment Available port obtain the set of available business mapping mode port；
    3rd module, for obtaining both according to type of service port set and business mapping mode port set Intersecting set；And
    4th module, for each port in the intersecting set, CTP service layers rank slave unit as needed can Idle CTP is selected in CTP set.
  20. 20. platform according to claim 16, it is characterised in that
    The route acquisition unit is based on the business need and the evaluation factor obtains next-hop port；
    The route acquisition unit includes：
    Across OCH or OTUk physical connection judge modules, for judge between the present port and the next-hop port whether Need across OCH or OTUk physical connections, if it is, the present port is to the corresponding CTP's of the next-hop port Multiplexed path mode, select the consistent next-hop port of multiplex mode；And
    Physics jumper connection judge module, for judging whether need physics to jump between the present port and the next-hop port Connect；If it is, consistent with the optical module serial parallel pattern of next-hop port according to present port, and present port with it is next The transmission range for jumping the optical module support of port selects required present port and next-hop end more than the principle of optical path distance Mouthful.
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