CN105099947A - Space network access method and device - Google Patents
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Abstract
The invention discloses a space network access method and device. The method includes: obtaining a Type of Service (ToS) field in a data packet; parsing the ToS field and obtaining a user priority in the ToS field; and determining an access mode to the space network according to the user priority. Through the method provided by the embodiment of the invention, the data classification and aggregation at an edge route node are realized by defining the fields such as user priority, a business priority and a drop priority in the ToS field. The access mode to the space network is selected for terminals based on the user priority and the business priority, and part of the data packets are dropped based on the drop priority. The access mode according with the demand is supplied for users with different grades. The resource is effectively used, and the communication congestion is avoided. The application of differentiated service models to the space network is improved.
Description
Technical field
The present invention relates to spatial network technical field, particularly relate to a kind of cut-in method and device of the spatial network based on differentiated service.
Background technology
Satellite communication system is by geo-synchronous orbit satellite (GeostationaryEarthOrbit, GEO), medium earth orbit satellite (MediumEarthOrbit, and low-orbit satellite (LowEarthorbit MEO), LEO) form, the while of in each layer orbital plane, cloth star, utilizes inter-satellite link to set up crossings on different level spatial network with layer satellite and interlayer satellite.Spatial network can make full use of the advantage of satellite in each layer track, has networking mode, stronger survivability and higher space resources utilance flexibly.
In recent years, satellite communication system by traditional arrowband small-scale application to broadband extensive future development, spatial network network enabled phone (VoiceoverInternetProtocol, VoIP) speech, video, short message, message and file transfer protocol (FTP) (FileTransferProtocol, FTP) the multiple business type such as data, miscellaneous service is not identical for the demand of the service quality (QualityofService, QoS) such as time delay, delay variation, throughput, packet loss.Such as, for the business such as speech, video, owing to having higher real-time, for meeting service quality, usually require that time delay is low, it is little to shake, packet loss is low; For the business such as message, data, owing to having non real-time nature, therefore lower to the requirement of the QoS index such as time delay, shake, packet loss.The characteristic of spatial network comprises the transmission delay of network, propagation delay, channel quality, flow load change, and the queue scheduling of network node, cache management, Resourse Distribute, flow control etc., the QoS index of these characteristics to miscellaneous service has considerable influence.
Torus network QoS controlling mechanism comprises integrated service model (IntServ), differentiated service (DiffServ), multiprotocol label switching (MPLS) and QoS Routing Protocol etc. traditionally.Compared with ground network, the features such as spatial network has that chain-circuit time delay is long, the error rate is high, network topology dynamic change, on-board processing and storage capacity is limited, data traffic skewness, therefore need to design suitable QoS guarantee method.Differentiated service can optimizing real time service in the transmission characteristic of long delay link, reduce the impact of satellite link bandwidth asymmetry, reducing the demand to Internet resources such as bandwidth, is the QoS assurance being more suitable for satellite network.But traditional differentiated service only implements queue scheduling, Flow-rate adjustment and cache management etc. for network node, no matter for the user of which kind of type, unified service is all provided, thus can not satisfy the demands the service that some high request user may provide, or lowly require for user for some, the service provided, beyond demand, causes the wasting of resources.
Summary of the invention
In view of this, for overcoming at least one shortcoming above-mentioned, and following at least one advantage is provided.The invention discloses a kind of cut-in method of spatial network.
For solving the problems of the technologies described above, the present invention by the following technical solutions: a kind of cut-in method of spatial network, comprising:
Obtain the tos field in packet;
Resolve described tos field, obtain the User Priority in described tos field; And
The access module accessing described spatial network is determined according to described User Priority.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, describedly determine that the access module accessing described spatial network comprises according to described User Priority:
When described User Priority is the tertiary gradient, GEO access module is selected to access described spatial network; And
When described User Priority is the first estate, LEO access module is selected to access described spatial network,
Wherein, described the first estate is the highest User Priority, and the described tertiary gradient is minimum User Priority.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, also comprise after the tos field in described acquisition packet:
Resolve described tos field, obtain the service priority in described tos field;
The access module accessing described spatial network is determined according to described service priority.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, describedly determine that the access module accessing described spatial network comprises according to described service priority
When described User Priority is senior in the second grade, and when the described grade of service is the first estate, LEO access module is selected to access described spatial network;
When described User Priority is senior in the second grade, and when the described grade of service is the second grade, MEO access module is selected to access described spatial network;
When described User Priority is rudimentary in the second grade, and when the described grade of service is the first estate, MEO access module is selected to access described spatial network; And
When described User Priority is rudimentary in the second grade, and when the described grade of service is the second grade, GEO access module is selected to access described spatial network,
Wherein, the first estate of the described grade of service, the priority of the second grade reduce successively; And
The priority of the first estate of described User Priority, the second grade and the tertiary gradient reduces successively.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, before the tos field in described acquisition packet, also comprise:
For the counter of Subscriber Queue arranges the weights corresponding to described User Priority; And
In the mode of poll, based on described User Priority schedule said user queue.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, described in the mode of poll, comprise based on described User Priority schedule said user queue:
Based on described User Priority schedule said user queue; And
When active user's queue is not empty, the counter of described active user's queue is subtracted 1, and the packet of execution cost active user queue, until described counter is 0.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, described based on after described User Priority schedule said user queue, also comprise:
Resolve described tos field, obtain the loss priority in described tos field;
For the Subscriber Queue after described scheduling, based on described loss priority, discard processing is carried out to the packet in described Subscriber Queue.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, describedly based on described loss priority, discard processing is carried out to the packet in described Subscriber Queue and comprises:
For the Subscriber Queue that User Priority is the first estate and the second grade, arrange based on described loss priority in advance and minimumly abandon thresholding, maximumly abandon thresholding and drop probabilities;
When the number of the packet of Subscriber Queue be greater than described maximum abandon thresholding time, abandon described packet; And
When the number of the packet of Subscriber Queue be greater than described minimum abandon thresholding and be less than described maximum abandon thresholding time, abandon according to described drop probabilities.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, describedly based on described loss priority, discard processing is carried out to the packet in described Subscriber Queue and comprises:
Be the Subscriber Queue of the tertiary gradient for described User Priority, abandon described Subscriber Queue completely after the packet that receives.
For the cut-in method of above-mentioned spatial network, in a kind of possible implementation, before the tos field in described acquisition packet, also comprise:
At the routing node place, edge of described spatial network, front three in the described tos field of definition packet is User Priority, 4th and the 5th of defining in described tos field is loss priority, and the 7th and the 8th of defining in described tos field is service priority.
For solving the problems of the technologies described above, the present invention also by the following technical solutions: a kind of access device of spatial network, comprising:
Acquisition module, for obtaining the tos field in packet;
Parsing module, for resolving described tos field, obtains the User Priority in described tos field; And
Access module determination module, for determining according to described User Priority the access module accessing described spatial network.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described access module determination module comprises:
First determining unit, for when the User Priority that described parsing module is resolved to is the tertiary gradient, selects GEO access module to access described spatial network; And
Second determining unit, for when the User Priority that described parsing module is resolved to is the first estate, selects LEO access module to access described spatial network,
Wherein, described the first estate is the highest User Priority, and the described tertiary gradient is minimum User Priority.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described parsing module also for: resolve described tos field, obtain the service priority in described tos field;
Then described access module determination module is configured to the access module determining to access described spatial network according to described service priority.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described access module determination module also comprises:
3rd determining unit, the User Priority for being resolved to when described parsing module is senior in the second grade, and when the described grade of service is the first estate, selects LEO access module to access described spatial network;
4th determining unit, the User Priority for being resolved to when described parsing module is senior in the second grade, and when the described grade of service is the second grade, selects MEO access module to access described spatial network;
5th determining unit, the User Priority for being resolved to when described parsing module is rudimentary in the second grade, and when the described grade of service is the first estate, selects MEO access module to access described spatial network; And
6th determining unit, the User Priority for being resolved to when described parsing module is rudimentary in the second grade, and when the described grade of service is the second grade, selects GEO access module to access described spatial network,
Wherein, the first estate of the described grade of service, the priority of the second grade reduce successively; And
The priority of the first estate of described User Priority, the second grade and the tertiary gradient reduces successively.
For the access device of above-mentioned spatial network, in a kind of possible implementation, also comprise:
Module is set, the weights corresponding to described User Priority are set for the counter for Subscriber Queue; And
Scheduler module, in the mode of poll, based on described User Priority schedule said user queue.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described scheduler module is configured to based on the queue of described User Priority dispatched users; And when active user's queue is not empty, the counter of described active user's queue is subtracted 1, and the packet of execution cost active user queue, until described counter is 0.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described parsing module also for: resolve described tos field, obtain the loss priority in described tos field;
The access device of described spatial network also comprises:
Discard module, for for the Subscriber Queue after described scheduler module scheduling, carries out discard processing based on described loss priority to the packet in described Subscriber Queue.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described discard module comprises:
Setting unit is the Subscriber Queue of the first estate and the second grade for User Priority, arranges in advance minimumly abandon thresholding, maximumly abandon thresholding and drop probabilities based on described loss priority;
First discarding unit, the number for the packet when the Subscriber Queue set by described setting unit is greater than described maximum when abandoning thresholding, abandons described packet;
Second discarding unit, the number for the packet when the Subscriber Queue set by described setting unit is greater than and describedly minimumly abandons thresholding and be less than described maximum when abandoning thresholding, abandons according to described drop probabilities.
For the access device of above-mentioned spatial network, in a kind of possible implementation, described second discarding unit is configured to: be the Subscriber Queue of the tertiary gradient for described User Priority, abandon described Subscriber Queue completely after the packet that receives.
For the access device of above-mentioned spatial network, in a kind of possible implementation, also comprise:
Field Definition module is User Priority for the front three defined in the described tos field of packet, and the 4th and the 5th of defining in described tos field is loss priority, and the 7th and the 8th of defining in described tos field is service priority.
By adopting technique scheme, of the present invention reached beneficial effect is: by defining the fields such as User Priority, service priority and loss priority in tos field, achieves classification to data and gathering at edge routing node; By carrying out the access module for terminal selection access spatial network based on User Priority and service priority, and based on loss priority discarded part divided data bag, user for different brackets provides the access module meeting its demand, achieve the effective utilization to resource, and avoid traffic congestion, improve the application of differentiated service in spatial network.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing the embodiment of the present invention is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the embodiment of the present invention and these accompanying drawings.
Fig. 1 illustrates the flow chart of the cut-in method of spatial network according to an embodiment of the invention;
Fig. 2 illustrates the flow chart of the cut-in method of spatial network according to another embodiment of the present invention;
Fig. 3 is the schematic diagram of tos field according to another embodiment of the present invention;
Fig. 4 illustrates the flow chart of the data package processing method of spatial network edge routing node according to another embodiment of the present invention;
Fig. 5 illustrates the flow chart of the cut-in method of the spatial network according to further embodiment of this invention;
Fig. 6 illustrates the flow chart of the array dispatching method according to further embodiment of this invention; And
Fig. 7 illustrates the structure chart of the access device of spatial network according to yet another embodiment of the invention.
Embodiment
The technical problem solved for making the present invention, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
COS (the TypeofService of tradition differentiated service definition, ToS) field front three is IP precedence field, eight kinds of IP precedences can be represented, be network control respectively, control between net, crucial, quickly, flash, quick, preferential, common; Afterwards four can only to a wherein position 1, and wherein, the 3rd position 1 represents minimal time delay, and the 4th position 1 represents maximum throughput, and the 5th position 1 represents most high reliability, and the 6th position 1 represents least cost; The last position of tradition tos field must be set to 1.In the present invention, innovatively redefine the tos field of applicable spatial network type, specifically, User Priority, type of service and loss priority is defined in tos field, achieve message classification function, and be that terminal selects the access module being applicable to himself feature to access spatial network based on this tos field redefined.
embodiment 1
Fig. 1 illustrates the flow chart of the cut-in method of spatial network according to an embodiment of the invention.As shown in Figure 1, the method mainly comprises:
The core routing node of step S11, spatial network obtains the tos field of IP packet;
Step S12, resolve this tos field, obtain the User Priority in this tos field; And
Step S13, according to this User Priority determination terminal access spatial network access module.
Particularly, the front three of ToS can be defined as user-priority field, represent the grade of service of user.Wherein, when the front three of ToS is " 000 ", represent that corresponding user is lowest service level user, determine to adopt GEO access module access spatial network.When the front three of ToS is " 001 ", " 010 ", " 011 " or " 100 ", then represent that corresponding user is medium grade of service user, and representative user's grade of service rises successively, MEO access module can be adopted to access spatial network; When the front three of ToS is " 101 ", represent that corresponding user is the highest grade of service user, adopt LEO access module access spatial network.
In the present embodiment, user-priority field is defined in advance in tos field, after the tos field obtaining IP packet and User Priority wherein, based on the access module of this User Priority determination terminal access spatial network, can provide for user the service meeting user's request, improve the effective rate of utilization of resource.
embodiment 2
Fig. 2 illustrates the flow chart of the cut-in method of spatial network according to another embodiment of the present invention.As shown in Figure 2, the main distinction of the method and a upper method is: also in tos field, define the grade of service in advance, and based on User Priority and the grade of service two because being usually the access module that terminal selects access spatial network, the method specifically comprises:
The qos field of step S21, acquisition IP packet;
Step S22, resolve this tos field, determine user-priority field, if user-priority field is the tertiary gradient, perform step S26; If user-priority field is the second grade, perform step S23; If user-priority field is the first estate, perform step S28;
Step S23, the user-priority field judged in tos field are rudimentary or senior in the second grade, if it is rudimentary to be judged as in the second grade, perform step S24; If what be judged as in the second grade is senior, perform step S25;
Step S24, the traffic priority field determined in tos field, when this traffic priority field is the first estate, perform step S27; When this traffic priority field is the second grade, perform step S26;
Step S25, the traffic priority field determined in tos field, when this traffic priority field is the first estate, perform step S28; When this traffic priority field is the second grade, perform step S27;
The terminal of step S26, control correspondence adopts GEO access module access spatial network;
The terminal of step S27, control correspondence adopts MEO access module access spatial network;
The terminal of step S28, control correspondence adopts LEO access module access spatial network.
In the present embodiment, the tos field adapting to spatial network feature has been redefined, to realize message classification function.As shown in Figure 3 and Figure 4, specifically comprise:
Step S31, in tos field, define user-priority field;
Such as, the front three of ToS can be defined as user-priority field, represent the grade of service of user.Wherein, when the front three of ToS is " 000 ", represents that corresponding user is lowest service level user, tertiary gradient service is provided; When the front three of ToS is " 001 ", " 010 ", " 011 " or " 100 ", then represents that corresponding user is medium grade of service user, provide the second grade service, and representative user's grade of service rises successively; Further, it is rudimentary that " 001 " and " 010 " is also defined as in the second grade by the present embodiment, and what " 011 " and " 100 " be defined as in the second grade is senior; When the front three of ToS is " 101 ", represents that corresponding user is the highest grade of service user, the first estate service is provided.In the present embodiment, according to the service of actual conditions determination the first estate, the second grade service and tertiary gradient service.The service of different brackets has the performance index such as different time delays, delay variation, packet loss, even if for same type of service, as speech, video, short message, message and data etc. service also can in these performance index difference to some extent.Such as, the first estate service in the present embodiment refers to the shake of low delay, low delay, low packet loss ratio and ensure the service of bandwidth.
Step S32, in tos field, define traffic priority field;
Such as, in the present embodiment, the 7th of ToS and the 8th are defined as traffic priority field, service priority is determined the requirement of the QoS index such as time delay according to dissimilar business, comprise " 00 ", " 01 ", " 10 ", " 11 " four kinds of service priority, and this service priority represented by four kinds of grades raises successively.Wherein, " 11 ", " 10 " represent the type of service higher to requirement of real-time, as VoIP speech, video flowing etc.; " 01 ", " 00 " represent the type of service lower to requirement of real-time, as short message, message, FTP data etc.
Preferably, also comprise:
Step S33, in tos field, define loss priority field;
Such as, the 4th of tos field and the 5th can be defined as loss priority field.Wherein, respective user precedence field " 001 ", " 010 ", " 011 ", " 100 ", namely the loss priority field of the user of the second grade is " 01 ", " 10 ", " 11 ", and the loss priority representated by it raises successively, and the possibility be namely dropped increases successively; The loss priority field of respective user precedence field " 101 " the i.e. user of the first estate is also " 11 ", represents the priority be dropped the highest.And, can also different minimum threshold, max threshold and drop probabilities parameter be set the number of data packets in each Subscriber Queue, directly can abandon for the packet exceeding max threshold, whether the packet between max threshold and minimum threshold is selected to abandon by the drop probabilities of setting.And, set thresholding and drop probabilities different according to the difference of loss priority, that is, define thresholding and drop probabilities based on loss priority.In practical application, when there is network congestion, link circuit resource anxiety, abandon the high packet of those loss prioritys based on the thresholding set by loss priority and drop probabilities.Routing node high congestion arrive before, buffering area less than time abandon grouping, and informing business source reduce transmission rate, guarantee service quality with this.
In addition, for the user of user-priority field " 000 ", namely User Priority is the user of the tertiary gradient, corresponding loss priority is also minimum, in this case above-mentioned packet loss mode is not adopted, namely without the need to arranging thresholding and drop probabilities parameter, but when queue full by unnecessary packet, namely packet loss process is carried out to the packet that Subscriber Queue receives completely afterwards.
It should be noted that, for the 6th of ToS, then only need filling bit position, spatial network core routing node does not process this field.And the process of definition of T oS field is here carried out at spatial network edge routing node, thus achieve edge routing node and data are classified and assembles, namely achieve the function of traditional differentiated service.
embodiment 3
Fig. 5 illustrates the flow chart of the cut-in method of spatial network according to another embodiment of the present invention; In the present embodiment, also carry out queue scheduling based on User Priority, as shown in Figure 5, the method comprises:
Step S41, realize queue scheduling based on the user-priority field in tos field.As shown in Figure 6, specifically comprise:
Step S411, be that each Subscriber Queue gives weights;
Such as, can be each Subscriber Queue assignment " 101 " ~ " 000 ", and the User Priority represented by this numerical value declines successively, the weights of imparting be corresponding with the precedence field in tos field, thus user obtains the dispatcher meeting consistent with priority.
Step S412, the precedence field Counter Value of each Subscriber Queue is initialized as in the tos field of correspondence;
Step S413, judge whether that whole queue is for empty, is terminate, otherwise enters step S414;
Step S414, priority scheduling queue according to user;
In the present embodiment, the User Priority represented by " 101 " ~ " 000 " declines successively, the user of priority scheduling high priority;
Step S415, judge that whether current queue is empty, be judged as YES, proceed to step S416, be judged as otherwise proceed to step S417;
Step S416, be 0 by the counter assignment of current queue; Enter step S418;
Step S417, the value of current queue counter is subtracted 1, and dispatch packet corresponding to this queue, enter step S418;
Whether step S418, the value judging all counters are all 0, are judged as YES, proceed to step S419, be judged as otherwise proceed to step S420;
Step S419, judge whether that all queues are completed one and take turns scheduling, be judged as YES and then perform step S413; Be judged as otherwise perform step S414;
Step S420, the value resetting each counter are the weights of corresponding queue, perform step S420.
Step S42, the Subscriber Queue dispatched step S41, carry out discard processing based on loss priority to the packet of each Subscriber Queue.
Specifically, to the Subscriber Queue that step S41 dispatches, in advance based on the loss priority definition thresholding and drop probability defined in tos field, and carry out packet discard accordingly, concrete processing procedure can description in reference example 2.
Step S43, for through step S41 and S42 scheduling queue, obtaining its IP packet successively, and obtain tos field, is that it selects the access module of access spatial network based on the User Priority in tos field and service priority, specifically can reference example 2, do not repeat them here.
By adopting technique scheme, of the present invention reached beneficial effect is: on the one hand, by defining the fields such as User Priority, service priority and loss priority in tos field, achieve classification to data and gathering at edge routing node; By carrying out the access module for terminal selection access spatial network based on User Priority and service priority, and based on loss priority discarded part divided data bag, user for different brackets provides the access module meeting its demand, achieve the effective utilization to resource, avoid traffic congestion, improve the application of differentiated service in spatial network.
embodiment 4
As shown in Figure 7, for the structure chart of the access device of spatial network according to yet another embodiment of the invention, this access device is for performing the cut-in method in above-described embodiment, and in conjunction with above-described embodiment, this access device comprises: acquisition module 1, parsing module 2 and access module determination module 3.
Wherein, acquisition module 1 is for obtaining the tos field in packet; Parsing module 2, for resolving described tos field, obtains the User Priority in this tos field; Access module determination module 3 accesses the access module of spatial network for determining according to this User Priority to access terminal.
Specifically, access module determination module 3 comprises: the first determining unit, for when the User Priority that parsing module 2 is resolved to is the tertiary gradient, selects GEO access module access spatial network; And second determining unit, for when the User Priority that parsing module 2 is resolved to is the first estate, select LEO access module access spatial network, wherein, the first estate is the highest User Priority, and the tertiary gradient is minimum User Priority.
Parsing module 2 also for: resolve tos field, obtain the service priority in tos field; Then access module determination module 3 is configured to the access module determining to access spatial network according to service priority.
Access module determination module 3 also comprises: the 3rd determining unit, and the User Priority for being resolved to when parsing module 2 is senior in the second grade, and when the grade of service is the first estate, selects LEO access module access spatial network; 4th determining unit, the User Priority for being resolved to when parsing module 2 is senior in the second grade, and when the grade of service is the second grade, selects MEO access module access spatial network; 5th determining unit, the User Priority for being resolved to when parsing module 2 is rudimentary in the second grade, and when the grade of service is the first estate, selects MEO access module access spatial network; And the 6th determining unit, User Priority for being resolved to when parsing module 2 is rudimentary in the second grade, and when the grade of service is the second grade, selects GEO access module access spatial network, wherein, the first estate of the grade of service, the priority of the second grade reduce successively; And the priority of the first estate of User Priority, the second grade and the tertiary gradient reduces successively.
Further, this access device also comprises: arrange module, arranges for the counter for Subscriber Queue the weights corresponding to User Priority; And scheduler module, in the mode of poll, based on the queue of User Priority dispatched users.
Wherein, scheduler module is configured to based on the queue of User Priority dispatched users; And when active user's queue is not empty, the counter of active user's queue is subtracted 1, and dispatches the packet of active user's queue, until counter is 0.
Further, parsing module 2 also for: resolve tos field, obtain the loss priority in tos field; Then this access device also comprises: discard module, for for the Subscriber Queue after scheduler module scheduling, carries out discard processing based on loss priority to the packet in Subscriber Queue.
This discard module specifically comprises: setting unit, is the Subscriber Queue of the first estate and the second grade for User Priority, arranges in advance minimumly abandon thresholding, maximumly abandon thresholding and drop probabilities based on loss priority; First discarding unit, the number for the packet when set Subscriber Queue is greater than maximum when abandoning thresholding, abandons described packet; Second discarding unit, the number for the packet when set Subscriber Queue is greater than and minimumly abandons thresholding and be less than maximum when abandoning thresholding, abandons according to drop probabilities.
Wherein, the second discarding unit is configured to: be the Subscriber Queue of the tertiary gradient for User Priority, abandon Subscriber Queue completely after the packet that receives.
Further, this access device also comprises: Field Definition module, be User Priority for the front three defined in the tos field of packet, the 4th in definition of T oS field and the 5th is loss priority, and the 7th in definition of T oS field and the 8th is service priority.
All or part of content in the technical scheme that above embodiment provides can be realized by software programming, and its software program is stored in the storage medium that can read, storage medium such as: the hard disk in computer, CD or floppy disk.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (20)
1. a cut-in method for spatial network, is characterized in that, comprising:
Obtain the tos field in packet;
Resolve described tos field, obtain the User Priority in described tos field; And
The access module accessing described spatial network is determined according to described User Priority.
2. the cut-in method of spatial network according to claim 1, is characterized in that, describedly determines that the access module accessing described spatial network comprises according to described User Priority:
When described User Priority is the tertiary gradient, GEO access module is selected to access described spatial network; And
When described User Priority is the first estate, LEO access module is selected to access described spatial network,
Wherein, described the first estate is the highest User Priority, and the described tertiary gradient is minimum User Priority.
3. the cut-in method of spatial network according to claim 1 and 2, is characterized in that, also comprises after the tos field in described acquisition packet:
Resolve described tos field, obtain the service priority in described tos field; And
The access module accessing described spatial network is determined according to described service priority.
4. the cut-in method of spatial network according to claim 3, is characterized in that, describedly determines that the access module accessing described spatial network comprises according to described service priority:
When described User Priority is senior in the second grade, and when the described grade of service is the first estate, LEO access module is selected to access described spatial network;
When described User Priority is senior in the second grade, and when the described grade of service is the second grade, MEO access module is selected to access described spatial network;
When described User Priority is rudimentary in the second grade, and when the described grade of service is the first estate, MEO access module is selected to access described spatial network; And
When described User Priority is rudimentary in the second grade, and when the described grade of service is the second grade, GEO access module is selected to access described spatial network,
Wherein, the first estate of the described grade of service, the priority of the second grade reduce successively; And
The priority of the first estate of described User Priority, the second grade and the tertiary gradient reduces successively.
5. the cut-in method of spatial network according to claim 4, is characterized in that, before the tos field in described acquisition packet, also comprises:
For the counter of Subscriber Queue arranges the weights corresponding to described User Priority; And
In the mode of poll, based on described User Priority schedule said user queue.
6. the cut-in method of spatial network according to claim 5, is characterized in that, described in the mode of poll, comprises based on described User Priority schedule said user queue:
Based on described User Priority schedule said user queue; And
When active user's queue is not empty, the counter of described active user's queue is subtracted 1, and the packet of execution cost active user queue, until described counter is 0.
7. the cut-in method of spatial network according to claim 6, is characterized in that, described based on after described User Priority schedule said user queue, also comprises:
Resolve described tos field, obtain the loss priority in described tos field;
For the Subscriber Queue after described scheduling, based on described loss priority, discard processing is carried out to the packet in described Subscriber Queue.
8. the cut-in method of spatial network according to claim 7, is characterized in that, describedly carries out discard processing based on described loss priority to the packet in described Subscriber Queue and comprises:
For the Subscriber Queue that User Priority is the first estate and the second grade, arrange based on described loss priority in advance and minimumly abandon thresholding, maximumly abandon thresholding and drop probabilities;
When the number of the packet of Subscriber Queue be greater than described maximum abandon thresholding time, abandon described packet; And
When the number of the packet of Subscriber Queue be greater than described minimum abandon thresholding and be less than described maximum abandon thresholding time, abandon according to described drop probabilities.
9. the cut-in method of spatial network according to claim 7, is characterized in that, describedly carries out discard processing based on described loss priority to the packet in described Subscriber Queue and comprises:
Be the Subscriber Queue of the tertiary gradient for described User Priority, abandon described Subscriber Queue completely after the packet that receives.
10. the cut-in method of spatial network according to claim 7, is characterized in that, before the tos field in described acquisition packet, also comprises:
At the routing node place, edge of described spatial network, front three in the described tos field of definition packet is User Priority, 4th and the 5th of defining in described tos field is loss priority, and the 7th and the 8th of defining in described tos field is service priority.
The access device of 11. 1 kinds of spatial networks, is characterized in that, comprising:
Acquisition module, for obtaining the tos field in packet;
Parsing module, for resolving described tos field, obtains the User Priority in described tos field; And
Access module determination module, for determining according to described User Priority the access module accessing described spatial network.
The access device of 12. spatial networks according to claim 11, is characterized in that, described access module determination module comprises:
First determining unit, when the described User Priority for being resolved to when described parsing module is the tertiary gradient, selects GEO access module to access described spatial network; And
Second determining unit, when the described User Priority for being resolved to when described parsing module is the first estate, selects LEO access module to access described spatial network,
Wherein, described the first estate is the highest User Priority, and the described tertiary gradient is minimum User Priority.
The access device of 13. spatial networks according to claim 11 or 12, is characterized in that, described parsing module also for: resolve described tos field, obtain the service priority in described tos field;
Then described access module determination module is configured to the access module determining to access described spatial network according to described service priority.
The access device of 14. spatial networks according to claim 13, is characterized in that, described access module determination module also comprises:
3rd determining unit, the User Priority for being resolved to when described parsing module is senior in the second grade, and when the described grade of service is the first estate, selects LEO access module to access described spatial network;
4th determining unit, the User Priority for being resolved to when described parsing module is senior in the second grade, and when the described grade of service is the second grade, selects MEO access module to access described spatial network;
5th determining unit, the User Priority for being resolved to when described parsing module is rudimentary in the second grade, and when the described grade of service is the first estate, selects MEO access module to access described spatial network; And
6th determining unit, the User Priority for being resolved to when described parsing module is rudimentary in the second grade, and when the described grade of service is the second grade, selects GEO access module to access described spatial network,
Wherein, the first estate of the described grade of service, the priority of the second grade reduce successively; And
The priority of the first estate of described User Priority, the second grade and the tertiary gradient reduces successively.
The access device of 15. spatial networks according to claim 14, is characterized in that, also comprise:
Module is set, the weights corresponding to described User Priority are set for the counter for Subscriber Queue; And
Scheduler module, in the mode of poll, based on described User Priority schedule said user queue.
The access device of 16. spatial networks according to claim 15, is characterized in that, described scheduler module is configured to based on described User Priority schedule said user queue; And when active user's queue is not empty, the counter of described active user's queue is subtracted 1, and the packet of execution cost active user queue, until described counter is 0.
The access device of 17. spatial networks according to claim 16, is characterized in that, described parsing module also for: resolve described tos field, obtain the loss priority in described tos field;
The access device of described spatial network also comprises:
Discard module, for for the Subscriber Queue after described scheduler module scheduling, carries out discard processing based on described loss priority to the packet in described Subscriber Queue.
The access device of 18. spatial networks according to claim 17, is characterized in that, described discard module comprises:
Setting unit is the Subscriber Queue of the first estate and the second grade for User Priority, arranges in advance minimumly abandon thresholding, maximumly abandon thresholding and drop probabilities based on described loss priority;
First discarding unit, the number for the packet when the Subscriber Queue that described setting unit is arranged is greater than described maximum when abandoning thresholding, abandons described packet; And
Second discarding unit, the number for the packet when the Subscriber Queue that described setting unit is arranged is greater than and describedly minimumly abandons thresholding and be less than described maximum when abandoning thresholding, abandons according to described drop probabilities.
The access device of 19. spatial networks according to claim 17, is characterized in that, described second discarding unit is configured to: be the Subscriber Queue of the tertiary gradient for described User Priority, abandon described Subscriber Queue completely after the packet that receives.
The access device of 20. spatial networks according to claim 17, is characterized in that, also comprise:
Field Definition module is User Priority for the front three defined in the described tos field of packet, and the 4th and the 5th of defining in described tos field is loss priority, and the 7th and the 8th of defining in described tos field is service priority.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059960A (en) * | 2016-05-24 | 2016-10-26 | 北京交通大学 | Software defined network-based space network QoS guarantee method and management center |
| WO2017219993A1 (en) * | 2016-06-22 | 2017-12-28 | 新华三技术有限公司 | Packet scheduling |
| CN107800471A (en) * | 2017-11-17 | 2018-03-13 | 西安电子科技大学 | The satellite Stochastic accessing jamming control method received based on more bags |
| CN114285808A (en) * | 2020-09-17 | 2022-04-05 | 慧与发展有限责任合伙企业 | Consistent quality of service policies in software defined enterprise networks |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102332950A (en) * | 2011-10-26 | 2012-01-25 | 中国电子科技集团公司第五十四研究所 | Method for limiting speed and scheduling priority based on network port in satellite internet protocol (IP) network |
| WO2012047880A2 (en) * | 2010-10-04 | 2012-04-12 | Telcordia Technologies, Inc. | A method and system for determination of routes in leo satellite networks with bandwidth and priority awareness and adaptive rerouting |
| CN103079273A (en) * | 2012-11-19 | 2013-05-01 | 南京邮电大学 | Resource management method suitable for multilayer satellite system |
| CN103441790A (en) * | 2012-12-07 | 2013-12-11 | 南京邮电大学 | Multi-service channel resource managing method suitable for satellite network |
| CN103905306A (en) * | 2014-04-02 | 2014-07-02 | 中国人民解放军西安通信学院 | Route exchange method suitable for GEO/LEO double layered constellation network |
-
2014
- 2014-09-25 CN CN201410498590.5A patent/CN105099947B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012047880A2 (en) * | 2010-10-04 | 2012-04-12 | Telcordia Technologies, Inc. | A method and system for determination of routes in leo satellite networks with bandwidth and priority awareness and adaptive rerouting |
| CN102332950A (en) * | 2011-10-26 | 2012-01-25 | 中国电子科技集团公司第五十四研究所 | Method for limiting speed and scheduling priority based on network port in satellite internet protocol (IP) network |
| CN103079273A (en) * | 2012-11-19 | 2013-05-01 | 南京邮电大学 | Resource management method suitable for multilayer satellite system |
| CN103441790A (en) * | 2012-12-07 | 2013-12-11 | 南京邮电大学 | Multi-service channel resource managing method suitable for satellite network |
| CN103905306A (en) * | 2014-04-02 | 2014-07-02 | 中国人民解放军西安通信学院 | Route exchange method suitable for GEO/LEO double layered constellation network |
Non-Patent Citations (2)
| Title |
|---|
| 朱京津: "一种适用于分层卫星网络的区分服务模型", 《软件（2011）》 * |
| 田小丽: "MPLS网络的QoS技术研究及安全问题分析", 《中国优秀硕士学位论文全文数据库信息科技辑（2011）》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059960A (en) * | 2016-05-24 | 2016-10-26 | 北京交通大学 | Software defined network-based space network QoS guarantee method and management center |
| CN106059960B (en) * | 2016-05-24 | 2019-06-04 | 北京交通大学 | A kind of spatial network QoS assurance and administrative center based on software defined network |
| WO2017219993A1 (en) * | 2016-06-22 | 2017-12-28 | 新华三技术有限公司 | Packet scheduling |
| CN107800471A (en) * | 2017-11-17 | 2018-03-13 | 西安电子科技大学 | The satellite Stochastic accessing jamming control method received based on more bags |
| CN107800471B (en) * | 2017-11-17 | 2019-12-24 | 西安电子科技大学 | Satellite random access congestion control method based on multi-packet reception |
| CN114285808A (en) * | 2020-09-17 | 2022-04-05 | 慧与发展有限责任合伙企业 | Consistent quality of service policies in software defined enterprise networks |
| US11950125B2 (en) | 2020-09-17 | 2024-04-02 | Hewlett Packard Enterprise Development Lp | Consistent Quality of Service policy in a software defined enterprise |
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|---|---|
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