CN100452730C - Method and protocol for managing wide frequency IP service in two broadcasting network layers - Google Patents
Method and protocol for managing wide frequency IP service in two broadcasting network layers Download PDFInfo
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- CN100452730C CN100452730C CNB021028699A CN02102869A CN100452730C CN 100452730 C CN100452730 C CN 100452730C CN B021028699 A CNB021028699 A CN B021028699A CN 02102869 A CN02102869 A CN 02102869A CN 100452730 C CN100452730 C CN 100452730C
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Abstract
The present invention relates to a system for managing wideband IP services in a second broadcasting network. The system comprises at least one middle system, at least one terminal system and at least one monitoring system, wherein the middle system is used for receiving messages from the exterior and sending response messages to the exterior, and the response messages which previously come from the terminal system are sent to the exterior. The previously sent service request is packaged to a usable terminal system by the middle system. The terminal system advertises and provides service messages on the second network. If one decision in the terminal system instructs the messages of one source to be sent into the other terminal system, the service messages are advertised on the terminal system of the second broadcasting network, and the shared load is fast increased by at least one terminal system. The monitoring system is used for processing log-in items of all systems in the second network.
Description
Technical field
But the invention relates to the IP wideband service management system of load balance fault tolerant scale, this system is relevant with the switching of Business Stream orientation, especially, the invention relates to the method and system that is used to manage a large amount of servers, wherein this server is by advertisement and will point to any spendable terminal system and the IP service of wideband is provided in second layer radio network from the service of intermediate system; And also according to Business Stream specification advertisement and directional information bag (packet) Business Stream between intermediate system and terminal system.
Background technology
Now between intermediate system and terminal system, carry out the mode of communication on ARP (address resolution protocol), to carry out the relaying operation.This ARP transmits a broadcast message and gives all terminal systems to find out the second layer address of IP address.This only provides the information that can arrive from an IP address to the mapping of having only one MAC Address.The present invention will provide more than one and can just in time accessibility information determine and satisfied quality of service and other the tactful service requests of comprising to allow more clever forwarding.
Summary of the invention
The object of the present invention is to provide a kind of in the second layer radio network layer managing wide frequency IP service method and system, for being provided, service gives a large amount of real server (server) (terminal system), be necessary to design a kind of method and system to improve the intermediate system when using the ARP agreement and the communication between the terminal system (server) at present, allow an IP address mapping to a plurality of real server among the present invention, and provide intelligent selection and forwarding algorithm to flow with dispensing applications business (traffic) between all terminal systems (server) by the MAC Address identification.
The present invention does not use basically to transmit and is broadcast to the ARP of all terminal systems with the second layer address of search IP address.Replacement, this intermediate system will be monitored the service information by the advertisement of server institute, and by the supervisory control system relaying, and store these information in the server tabular, and the business of transmitting (forward) new demand is in server, and this server is the person of finding in the server tabular from then on.Selecting destination server is that this advertisement is the availability of this service of advertisement according to the congested advertisement of service, and the response time selects more not congested server to transmit this requirement to assist intermediate system.After server is accepted this service request, this Business Stream route information of this server advertisement.This Business Stream route information will be specified itself destination (using too network MAC address of second layer second) for the Business Stream of serving usually.Not only destination address, and the address, source in the packets of information gauge outfit and other protocol number will be appointed as the Business Stream matching criterior.These Business Stream advertisements will be stored in the Business Stream form of the intermediate system beyond the server tabular.
After by intermediate system Business Stream being installed, the packets of information afterwards of mating with Business Stream will be forwarded to terminal system based on the result who checks business flow list.This result will indicate that server (being represented by second layer MAC Address) will transmit this Business Stream.When middle system did not find out a kind of state of coupling, this business flow list was always checked earlier.Handle this packets of information as just searching first new service of service.Intermediate system is searched the server tabular to find out the server that can be used for transmitting this requirement then.Can remove this service, and add fast, and after finishing, can be via advertisement, the time finish or other strategy and stop this Business Stream, but these modes are transparent for terminal user.The same IP address that all shared permission of all these servers client closely connects is as same big server.Guaranteeing the uniqueness of Business Stream, and carry out suitable number resource management by any protocol number of SS (supervisory control system) central authorities control and any other number storehouses.Of the present inventionly be characterized as the load balance that application service information and Business Stream advertisement protocol have fault tolerance between intermediate system and terminal system.
Of the present invention another be characterized as advertising service pattern and Business Stream in pattern coupling form, switching system this packets of information of classifying in the middle of allowing, and needn't understand detailed applicable cases.
A service information that is characterized as by terminal system (server) advertisement of the present invention wherein comprises the Service Properties of service, and ability and other are assisted the server admin in the second layer network.
Of the present invention another be characterized as Business Stream information by terminal system (server) advertisement, wherein comprise the Business Stream attribute of service request quality, as the sign distributorship agreement in second layer network.
Of the present invention another be characterized as the method that allows the shared single IP address of a plurality of real server, its mode be for the client for transparent, and wherein use the assigned number authorized agreement that comprises service information and Business Stream advertisement protocol.
Of the present invention another be characterized as for indicating by the source of adjusting unique appointment between the packets of information of using unique overlapping private ip address not, to indicate (carrying out central authorities' control to indicating number) identification difference therebetween by the assigned number authorized agreement.
The present invention intermediate system and use the ARP agreement server between improve the used means of communication.The present invention allows a plurality of real server of IP address mapping by the identification of second layer address, and still can provide uniqueness in the communication between each real server and the client.
System of the present invention comprises intermediate system, terminal system, reaches supervisory control system.This IS (intermediate system) is an IP route intermediate system or a switching device shifter, it receives the business from the client, and this business is forwarded to terminal system on the second layer network, and on the other hand, this system also will be forwarded to the customers' place from the response business of this terminal system.This ES (terminal system) can be the server of any kind of, wherein comprises http server, ftp server, fire compartment wall acting server, IPSEC and wears and weigh down server, tandem media server, information and get server, and NAT (network address translation) address etc. soon.This SS (supervisory control system) is a special system, handles on this second layer network the service login from all systems.Also reply the requirement of any new system, wherein this server tabular is inquired about for the special services on this network by this system.Also can move " the requiring the number mandate " that is used for this second layer network as this, and also can carry out as an administration agent device, it is managed all and signs in to all systems on it.Because all shared IP address of all servers, all must central authorities be controlled to guarantee the uniqueness of the service stream classification between client and real server.The assigned number authorized agreement can reach this requirement.Standby supervisory control system can provide the support redundant ability when main supervisory control system can't be moved.This second layer network can be by second layer switching device shifter (as second network switching too) framework or by the repeater of reality (as second hub too) framework.
Description of drawings
Describe content of the present invention for believing, be elaborated below in conjunction with accompanying drawing, wherein:
Fig. 1 shows the calcspar of the system of the present invention with intermediate system, terminal system and supervisory control system.
The sequence chart of the service login sequence of Fig. 2 (a) demonstration service information of the present invention system;
The sequence chart of login sequence is removed in the service of Fig. 2 (b) demonstration service information of the present invention system;
Add service and remove the renewal sequence in Fig. 3 (a) and Fig. 3 (b) demonstration service information of the present invention system.
Fig. 4 (a) shows the sequence chart of the multidirectional broadcast message of server congestion of service control advertisement of the present invention.
Fig. 4 (b) is for showing the sequence chart that triggers server congestion one way propagation information in the service control advertisement of the present invention.
Fig. 4 (c) is the sequence chart that shows the sequence of directional information again of service control advertisement of the present invention.
Fig. 5 shows the diagram of Business Stream sequence of advertisements of the present invention.
Fig. 6 shows the diagram of assigned number authorized agreement sequence of the present invention.
Fig. 7 is the used new standby supervisory control system of assigned number tabular that obtains from main supervisory control system.
Fig. 8 is presented at the beacon information bag diagram in user's packets of information.
Fig. 9 shows the diagram that contains or do not contain the information format of VLAN priority.
The diagram of Figure 10 display protocol information format.
Figure 11 shows the diagram of the information format that is used for the common information gauge outfit.
Figure 12 shows the diagram of the information format that is used for the service login requirement.
Figure 13 shows the diagram that is used to serve the information format of removing the login requirement.
Figure 14 shows the diagram be used for the information format that service login informs.
Figure 15 demonstration is used to serve the diagram that the information format of informing is logined in removal.
Figure 16 shows the diagram of the information format that is used for the COS matching principle.
Figure 17 shows the diagram of the information format that is used to serve more new demand.
Figure 18 shows the illustrated diagram that is used to serve removal updated information form.
Figure 19 shows the diagram that is used to serve removal updated information form.
Figure 20 demonstration is used to serve the diagram of upgrading the information format of informing.
Figure 21 shows the diagram that is used to serve the information format of controlling advertisement.
Figure 22 shows the diagram of the information format that is used for the Business Stream advertisement.
Figure 23 shows the diagram be used for the information format that the Business Stream advertisement informs.
Figure 24 shows the diagram of the information format that is used for the Business Stream attribute.
Figure 25 shows the diagram of the information format that is used to specify the number requirement.
Figure 26 shows the diagram be used to specify the information format that number informs.
Figure 27 demonstration is used to specify the more diagram of the information format of new demand of number.
Figure 28 shows the diagram that is used to specify number updated information form.
Figure 29 demonstration is used to specify the diagram that number upgrades the information format of informing.
Embodiment
As shown in Figure 1, system of the present invention comprises intermediate system, terminal system, reaches supervisory control system.This IS (intermediate system) is the switch kind of ip router or device, and it receives the business (traffic) from the outside, and this business is sent to terminal system.On the other hand, this system also will respond business and be sent to the outside from this terminal system.This ES (terminal system) can be the server (server) of any kind of, comprises http server, ftp server, fire compartment wall acting server, IPSEC and wears and weigh down server, and NAT (network address translation) server etc.This SS (supervisory control system) is a specific system, the login item of this system handles all systems in this second layer dual network.Also produce for the requirement from any new system and respond, this system search is used for the server table of the special services of this network.Also carry out as be used for " assigned number mandate " server of this second layer network.The action of this system as administration agent mechanism, all sign in to system in it this organization management.Because the shared IP address of all servers, so the centralized control carried out is arranged to guarantee the uniqueness of the Business Stream between client and property server.If can provide a standby supervisory control system to make when main supervisory control system akinesia, the system of a redundancy then is provided.This second layer network can be by second layer switching device shifter (as second network switching too) or entity repeater (as second hub too) framework.
Usually provide a service by a plurality of terminal systems (server), intermediate system will be learnt the service by the advertisement of terminal system institute, and according to service information advertisement this business that leads.If system is providing acting server, as the application proxy program of fire compartment wall, then this system is intermediate system and terminal system simultaneously.When receiving from requirement of client, then the action of type this time is as server, and when starting one when in fact providing the requirement item of this service to this application server, then it moves as the client.
On the other hand, intermediate system is based on Business Stream, and COS or destination address provide forwarding (forward) service.
A service can comprise handles and transmits operation.System this packets of information (packet) of can trying to handle earlier, if do not handle this packets of information, then this system transmits this business based on this professional pattern.If should the business information can't use, then search its COS.Last mode is only based on destination address, and with this packets of information toward transmitting.The decision of handling and transmitting also comprises the decision of " removing this packets of information ".
Service
By the figure matching principle this service is described, whether this allows intermediate system to analyze this packets of information based on these principles, mate with decision.Therefore intermediate system needn't be " being known applications in ", needs only this intermediate system and can carry out the figure matching principle, and common the method can be undertaken by network processing unit very fast.The field that will analyze sometimes must not only comprise the destination, and must comprise the source information that is used for a service.An example will be checked the address, source for the address translation service, and destination address, whether must carry out address translation with decision.Defined in the explanation of more accurate service definition general information format hereinafter.
In multidirectional propagation address state, use the multidirectional propagation of the second layer of knowing address of all watch-dogs (AllSupervisors) expression, this mode is especially used in main supervisory control system and standby supervisory control system." Servers-all of service X " the multidirectional propagation of second layer address of expression, be used for the server that all provide service X, and " all clients of service X " layer that is used for two multidirectional propagation addresses of all clients of expression, these clients are interesting for service X.
As shown in Fig. 2 (a), a sequence chart is represented the service login information sequence of service information of the present invention system.When on the positive line of terminal system (server), this terminal system will transmit this multidirectional propagation address information second layer address of itself and interval of keeping action in " all watch-dogs " relevant with this service.Specific this service is as the figure matching principle.Should (server) terminal system will transmit information again, till this supervisory control system is understood its service login.Informing of this supervisory control system, the system that makes specifies multidirectional propagation address to give this server, this server provides service (that is, the Servers-all of service X) of this type and all clients' multidirectional propagation address, and wherein these clients are be interested in for type of service (promptly serving all clients of X).If necessary, this supervisory control system also can re-write keeping in the action at interval.This server is also notified this supervisory control system, and its mode first is kept action message for transmitting this, and the rest may be inferred by analogy for it.
The service that the information of service removal login allows the removal of (server) terminal system itself to be provided.Certainly, should (server) terminal system must transmit information again, till supervisory control system informs that this server has been removed.
At Fig. 3 (a) and (b), if any change is arranged in the server tabular, then supervisory control system must transmit that this server adds and multidirectional the diffusing information of renewal of removing given " whole clients of service X ".This server changes the necessary adaptive packets of information of tabular, understands this renewal operation to allow each client.If the packets of information number that is divided into a plurality of lastest imformations is more than one, then next packets of information transmit before, wait for and all inform.
In Fig. 3 (c), new (client) intermediate system (may also be a terminal system) can transmit this multidirectional propagation address and give all supervisory control systems with the service request server tabular for specific pattern, and indicates keeping of itself to move at interval.This supervisory control system must be responded server update information and this server tabular to provide this specific COS, the wherein login of the service of the type.Can't an adaptive packets of information if the server tabular is oversize, then the echo message bag must be in each packets of information the flag of appointed sequence number and dibit, initial to be reported to be (first) individual packets of information, and the more information bag is arranged.Supervisory control system can transmit next packets of information before, new intermediate system must be informed each packets of information based on serial number.Come the answer of self-monitoring system also to specify a multidirectional propagation address to give this for the interesting client's (promptly serving all clients of X) of the service of this type and the multidirectional propagation address of the Servers-all (promptly serving whole servers of X) of the service of this type is provided.If necessary, this supervisory control system also can be kept in the action at interval at this and re-write.For after the informing at last of server update information, transmit its first preceding time of waiting for of keeping action message at server and do not keep action at interval by one.
Fig. 4 (a) is that a sequence is graphic, and the congestion information sequence of service control advertisement of the present invention is described.In the time of can't removing the packets of information of this requirement for more requirement of service acceptance that is provided when server congestion and because of server, this multidirectional all clients of diffusing information giving all supervisory control system and serve X relevant with the congested service X that is provided must be provided this server.This congestion information will be pointed out " supspend service time ".When other system received this congestion information, this system indicated this congested server in this server tabular, till the state of " outside service time " stops.
When a server is " temporary transient stop service " for new requirement item, and this server is when receiving new the requirement for this service, and the node that the congested advertising message of " one way propagation " service is given requirement must react in this system.Demonstrate state among Fig. 4 (b).Also can optionally this requirement be pointed to again (forwarding) also provides same services to another server.
Fig. 4 (c) is a sequence chart, shows the sequence of directional information again of service control advertisement of the present invention.When server is tried to respond this and is required, this server is specified a router, to be sent to its (route) server tabular, this server can not selected the best next one " hop router ", but this information (the similar ICMP information of its operating type) can be pointed to this server to select preferable router again.Server also can use this information with the requirement of pointing to this user again based on the form or other the demand of server to other preferable server nodes.
Business Stream
Business Stream refers to from the Business Stream of the destination of originating.The TCP that Business Stream also can be same as and specify source IP addresses, purpose IP address, come source tcp port and destination interface links, but also can an origin source IP address and IP address, destination and destination tcp port, and does not come source tcp port.Keeping on fixedly connected between client and the server, the example of back is even more important.Determine the specification of Business Stream fully by server, the demand on promptly separate server is used.On this invented, acceptance links the server that requires must give this Business Stream informercial intermediate system to indicate this intermediate system how with the past forwarding of the packets of information that meets the Business Stream specification afterwards.Can set up Business Stream from end system-to-intermediate system, and can be further extend and set up from this intermediate system and to the adjacent system of next jump upstream intermediate system.Also can be by pattern matching principle explanation Business Stream, whether this principle permission intermediate system is analyzed this packets of information based on these principles and is mated mutually to judge.Therefore, intermediate system needn't be " it is known to use stream ", as long as this intermediate system can be carried out and be generally the very handled pattern matching principle of fast network processor.This Business Stream is unidirectional.Business Stream from middle system to server is by the server advertisement, and this advertisement is to use the Business Stream matching principle that is indicated institute's identification by the specified Business Stream of Advertisement Server.Still by the Business Stream of server advertisement from the server to the intermediate system, but show by informing that at Business Stream intermediate system specified services in the packets of information is failed to be sold at auction.The definition that in the explanation of information format, will further influence for Business Stream.
Fig. 8 is illustrated in the beacon information bag (encapsulaton) in user's packets of information of the present invention.The professional insertion of user in this second layer network has the four bit group information that indicate information.If this packets of information is mated this Business Stream, then Business Stream indicates and will insert normal second too in the network frame by intermediate system or server.If this packets of information is not mated any Business Stream words, then the numerical value of 4 bit groups will be inserted the source sign, use the source of this source sign with the indication information bag.Need the form of two new data frame patterns with unique determination data frame.One type is used for Business Stream unlabeled data frame, another type unlabeled data frame that is used to originate.Can before indicating, insert only VLAN label data frame priority.Contain and do not contain that the data frame form of VLAN priority shows in Fig. 9.This sign also is used for private address respectively.The example that this source indicates is to imbed this VPN identification maybe this router apparatus ID that enters and interface number.For the packets of information of using not exclusive individual with the IP address, this source indicates can be used for the unique classification Business Stream.The VPN identification can be disposed the interface of related system.Different VPN identification number can different information bag (from different interfaces) in packets of information, and this packets of information uses identical source private ip address to identical IP address, destination.
In the Business Stream advertisement protocol, (server) terminal system must be with business and attribute thereof and the action of being accepted thereof, and the second layer address of using himself is transmitted this multidirectional diffusing information and given all clients of service X.In the figure matching principle, specify and give Business Stream.Should (server) terminal system must transmit this Business Stream again, up to original require intermediate system to inform its Business Stream advertisement till.In the Business Stream advertisement, specify the attribute of this Business Stream.Static user's form business also might allow this policy route based on Business Stream.
Fig. 5 shows sequence of advertisements of the present invention.Business Stream by the advertisement of terminal system (server) institute will carry out multidirectional broadcasting to all clients of service X.But the information of this advertisement will be pointed out this primitive request intermediate system.These intermediate systems are not the original intermediate systems that requires, and this system can store this new Business Stream information and handle this Business Stream information in business flow list or based on itself execution and strategy.This advertisement need be from each interesting client inform that (except the primitive request intermediate system) is to avoid too many Business Stream informing business.
Assigned number
Number for appointment, at this second layer network internal storage in a plurality of parameters, as the IP address, link portal number, must be controlled and be managed in the 3rd some field and many other item in layer 7 gauge outfit or the interior literary composition at the TCP under the identical IP address or UDP.Some must guarantee the consistency of Business Stream, and other are the common source of necessary central management.Be used for a plurality of servers that same services is provided an IP address shared must numerical value that some parameter is used with unique specified message bag gauge outfit and in the civilian field.This is the work of assigned number authorization server, so that when claiming, carries out these unique numbers and specifies, and also keep the login of the numerical value of present appointment.
In the number authorized agreement of appointment, terminal system or intermediate system transmit this multidirectional diffusing information and give one or some parameter area release to require desire is used of all supervisory control systems.Supervisory control system answer and assurance are for the scope of the number of selecting in this special parameter, and this operation is the release time with the minimum time that is equal to or less than this requirement.Require system will not do the time spent when supervisory control system detects, then the number of these assurances will be recalled in its candidate unit by supervisory control system.
Specify now and the login of assigned number is not synchronous
And, for make between standby supervisory control system and main supervisory control system appointment and the login of designated value can be not synchronous, standby supervisory control system can transmit one and reach the relevant one way propagation demand of assigned number not with the appointment that is used for the particular number type and give main supervisory control system.This main supervisory control system must be used this appointment and reach not assigned number response number lastest imformation for the particular type of this number.In the time of can't adapting to a packets of information if the type of number is too many, this echo message bag must be specified a serial number and be specified a flag to indicate the first, centre or last packets of information in each packets of information.Must be by new standby supervisory control system based on this sequence number, main supervisory control system can transmit next packets of information before inform each packets of information.
The option program of monitoring and standby supervisory control system
In the redundancy of standby supervisory control system is supported, when supervisory control system (can be standby supervisory control system or be not standby supervisory control system) when beginning to move, this system tries from existing supervisory control system and addresses inquires to standby supervisory control system, and its mode is given all supervisory control systems for transmitting more new demand information of multidirectional service.Serve more new demand if exist any main supervisory control system to reply this, and during the standby supervisory control system of not using, then new supervisory control system will become standby supervisory control system, and this system makes server tabular and main supervisory control system synchronous via service lastest imformation agreement.And this standby supervisory control system will make via number lastest imformation agreement and be specified and unspecified both are synchronous by main supervisory control system.After informing the final number lastest imformation, this standby supervisory control system will periodically transmit to interrogate and be used for the one way propagation address of main supervisory control system, and monitor the information that all are sent to the multidirectional propagation of all supervisory control systems address.If there is standby supervisory control system, then this system will transmit this interrogation periodically becomes standby supervisory control system till this standby supervisory control system action that exists disappears to try.If apart from interior response of not serving more new demand (when service is addressed inquires to 3 times of distance), then new supervisory control system will become main supervisory control system (but not having standby supervisory control system) when one (at last).The new supervisory control system that inquiry main supervisory control system that be sent to during this deadline date requires if receive relevant with standby supervisory control system, this main supervisory control system has the MAC Address of reception information, this address is lower than the words of the MAC Address of this new supervisory control system, then when this (at last) time limit finished, this new supervisory control system still became main supervisory control system.Address inquires to the new supervisory control system that requires to main monitor system information if during the deadline date, receive, MAC Address with reception information, this address is higher than the words of the MAC Address of this new supervisory control system, have then that the system of high MAC Address will become main supervisory control system, and this second high MAC Address will become standby supervisory control system.After finding out or select main supervisory control system, this standby supervisory control system will periodically transmit the inquiry requirement that is used for main supervisory control system.When if main supervisory control system receives this inquiry, this main supervisory control system is upgraded the time timer of this standby supervisory control system, and replys this requirement, and the rest may be inferred in all the other actions.If this timing finish before, main supervisory control system does not receive and requires when standby, this main supervisory control system will be removed this standby supervisory control system, and can transmit snmp trap (trap).On the other hand, if without any response, then standby supervisory control system will become main supervisory control system in (at last) time limit (server is addressed inquires at interval 3 times).
The protocol information form
Figure 10 shows the form of protocol information of the present invention.This packets of information can be by second network or carried out by IP or UDP too
| DMAC | SMAC | Type | Information |
With unique pattern of finding for this Format Type.
| The IP gauge outfit | Information |
Protocol type unique in the IP gauge outfit will be found out.
| The UDP gauge outfit | Information |
Connectivity port numbering unique in the UDP gauge outfit will be found out.
| 2 bit information types | 2 bit information length | Information |
Figure 11 shows the gauge outfit form of shared information of the present invention.
This information pattern will comprise:
1000: the server log requirement
1001: server log is informed
1002: server is removed the login requirement
1003: server is removed login and is informed
1100: the server update requirement
1101: server adds renewal
1102: server adds to upgrade informs
1103: server is removed and is upgraded
1104: server is removed to upgrade and is informed
1200: the server controls advertisement
1300: the Business Stream advertisement
1301: the Business Stream advertisement is informed
1400: the assigned number requirement
1401: assigned number is informed
1500: assigned number is new demand more
1501: assigned number upgrades
1502: assigned number upgrades informs
For keeping action message, system cycle ground transmits the multidirectional propagation of server controls advertisement address and gives the whole clients that serve X and keep the service time that action interval Service Properties is updated in supervisory control system (this supervisory control system also is the client of service X) and serves whole clients of X.The present response time is connected in the measuring equipment, as load-factor, so that client (IS) selects more not congested server.
Server address is the field of 8 bit groups, and preceding dibit group determines its MAC Address or IP address, and 0000 is MAC, and 0001 is IP.
Keep action at interval and server now the response time be two kinds of server property types, 1 is used to keep action at interval, 2 is server response time now.
Keep action and be spaced apart the time interval that system keeps the transmission cycle action message.
Server now the response time for by second too the employed entry time of driver indicate require packets of information (for example HTTP requires) and response time be sent to this line time-tagging between present time poor.By the time difference of transmitting driver and the record of the mean value in keeping action at interval present time.
Supervisory control system can be calculated average response time based on last time time response of each server in the interval of the supervisory control system that transmits its previous generation in supervisory control system.
Figure 12 shows the information format that is used for service login requirement of the present invention.
| Server address | The service type matching principle | 4 bit sets of numbers of Service Properties | Service Properties (keeping action etc.) | The COS matching principle | ... |
The COS matching principle is a variable-length, and this length will be defined in the next section.
Server address is the field of 8 bit groups, and preceding two bit groups determine its MAC Address or IP address, and 0000 is MAC, and 0001 is IP.
Figure 13 is used to serve the information format of logining requirement, this form be as:
| Server address | 4 bit group service types | 4 bit group service types | 4 bit group service types | ... |
Figure 14 shows and is used for the information format that service login of the present invention is informed.
Server address is the field of 8 bit groups, and preceding dibit group determines its MAC Address or IP address, and 0000 is MAC, and 0001 is IP one way propagation address or multidirectional propagation address.
Server one way propagation address is the server address of this service of login.The multidirectional propagation of this server address is the multidirectional propagation address that is used for Servers-all, and these servers are being served and are being the supervisory control system service specified.This client's multidirectional propagation address is the multidirectional propagation address that is used for all clients, and wherein this client is to being that the service of the specified login of supervisory control system is interested.If have two or the service principle of a plurality of couplings, then this program is used to mate and links the service of interrupting.This its priority of intermediate system that only is used to the purpose of the service of transmitting must be also lower than other system.It is also lower than the order of searching flow table and (processing server tabular) that this is meaning the priority of searching this routing table for next hop node.Figure 15 is used to transmit login the information format of informing, this form is as follows:
| 4 bit group service types | Server address | 4 bit group service types | Server address | ... |
Figure 16 shows the information format that is used for service type matching principle of the present invention.In this classification of service, definition is with the form of figure matching way explanation service type in Figure 11.By this service type of packets of information analysis principle unique classification.If have multiple packets of information analysis principle for identical service type, though provide the server of service will serve all packets of information, these service types still are categorized as different COS.Forming one for the analysis principle of special services pattern is the pattern coupling hurdle of row.Especially relevant field can become type one time by cluster in one deck gauge outfit.Maximum significant bit will point out whether this is last field or middle time pattern or pattern in service type or inferior pattern.Can be from beginning bit position and this hierarchical structure of field relevant layers gauge outfit to the 7th layer.Figure 16 shows the information format that is used for the COS matching principle.
Notice that the unit of length is the number of bit group.The COS matching principle comprises a plurality of standards and a plurality of field that will mate simultaneously.These figures coupling can Graphics Application matching network processor and use also fast the carrying out fast than the directed CPU of normal procedure.Begin the bit position under the beginning bit position compensation of the packets of information gauge outfit of deducing by application type or inferior type.This computing comprise "＞", "＜", "＞=", "＜=", "=" and "!=".The unit of field numerical value length is calculated with the bit batch total.Contain obsolete guiding 0 bit in the field value.If the operand difference, then identical beginning bit and bit field can repeatedly occur.
In Figure 17, show the information format that is used to serve more new demand, as shown in the table:
| 4 bit group COS | 4 bit group COS | 4 bit group COS | 4 bit group COS | ... |
The information of replying adds lastest imformation for service.
Figure 18 shows that being used for service among the present invention adds the updated information form,
In the serial number two the highest bits will indicate first, centre or final updating packets of information.In the serial number 31,30 bits are initial and next bit.
Next bit of bits of original
01 single packets of information
11 first information bags
01 average information bags
00 last packets of information
The present invention of being used for shown in Figure 19 serves and removes the updated information form.
In the serial number two the highest bits will indicate first, centre or final updating packets of information.In the serial number 31,30 bits are initial and next bit.
Next bit of bits of original
10 single packets of information
11 first information bags
01 average information bags
00 last packets of information
Figure 20 shows that the present invention is used to serve the information format that renewal is informed.This is for adding and removing and serve informing of upgrading.
| 4 bit group serial numbers | The group address | 4 bit group COS | The group address | 4 bit group COS | ... |
| Server one way propagation address | The multidirectional propagation of server address | The multidirectional propagation of client address |
In order to remove a service, server and customer address must insert zero.
In the serial number two the highest bits will indicate first, centre or final updating packets of information.In the serial number 31,30 bits are initial and next bit.
Next bit of bits of original
10 single packets of information
11 first information bags
01 average information bags
00 last packets of information
Figure 21 shows that the present invention is used to serve the information format of control advertisement.
| 4 bit groups | Server | Service Properties | The service of 2 bit groups | 2 bit groups clothes | Property value | 2 bit groups clothes | ... |
| COS | The address | 4 bit group numbers | Attribute type | The affair attribute length | The affair attribute type |
For serving its Service Properties type of control information more than two.
3 is a congested system halt service;
4 refer to " point to " packets of information again to other better system by intermediate system or server.
| Out of service | Length | Exceed service time |
| Point to again | Length | The address of service |
Length will determine the length of Servers-all address.
Server address is all servers that can point to again.
Figure 22 shows the information format that is used for Business Stream advertisement of the present invention.
| The Business Stream matching principle | The Business Stream attribute require the bit sets of numbers | The Business Stream attribute | The Business Stream matching principle | ... |
Figure 23 shows and is used for the information format that Business Stream advertisement of the present invention is informed.
| Business Stream indicates | 4 bit group numbers of Business Stream attribute | The Business Stream attribute | Business Stream indicates | 4 bit sets of numbers of Business Stream attribute | The Business Stream attribute | Business Stream indicates | ... |
Business Stream is denoted as 4 bit groups.Intermediate system can be gone into new Business Stream with manifolding and indicate to inform this Business Stream by the applied business stream attribute.Wherein a kind of Business Stream attribute is an action attributes.Wherein a kind of action attributes value is for cancelling this Business Stream.Intermediate system applied business stream attribute informs that this Business Stream indicates to make carbon copies new Business Stream.
The formal definition that Business Stream is described is in the 18th figure.By packets of information analysis principle unique classification Business Stream, and by this Business Streams of sign identification of 32 bits.Appointment is given the scope of sign of server through specifying number authorized agreement.This makes this Business Stream indicate unique whole second layer network that strides across.If sometimes, for same Business Stream, there are a plurality of packets of information analysis principles, though intermediate system points to these principles all identical terminal systems or reaches next intermediate system, still classify as different Business Streams.The analysis principle that is used for given traffic streams comprises the figure coupling field of consecutive.Especially can cluster be a type at relevant field with the gauge outfit of one deck.Maximum significant bit in COS and time type will point out whether to exist last field or intermediate system time type or type.From initial this bit position that begins of the gauge outfit of the relevant layers of field, and until layer 7 and carry out hierarchy.
The unit of noting length is the number of bit group.
The program matching principle comprises a plurality of the standards and the field of coupling simultaneously.These figure coupling Graphics Application matching network processors can be used than the also fast speed of the directed CPU of general procedure and carry out.The beginning bit position begins compensation from the packets of information gauge outfit, and wherein this gauge outfit is that type or inferior type deduce out.This operand comprise "＞", "＜", "＞=", "＜=", "=" and "!=".
With the long measure of bit batch total calculation field value, this field value can have obsolete leading 0 bit.If the operand difference, some significant bit position and bit length can repeatedly occur.Aspect the Business Stream attribute, the attribute of Business Stream comprises sign and the directed information of other Business Stream of needs on traffic engineered, quality, priority, MPLS.
Figure 24 is the information pattern that is used for the Business Stream attribute
| 2 bit group Business Stream attribute types | 2 bit group attribute length | Change length attribute value |
Maximum significant bit in attribute type will indicate whether that this is a last attribute.
The action of Business Stream attribute
Attribute type 1 is an action attributes
The Business Stream action attributes comprises " permission ", " negating ", " MPLS indicates calculating ", " MPLS indicates removal ", " Business Stream is cancelled " and other policy configurations coupling action items.
Business Stream attribute-sign value
Attribute type 2 is for indicating value attribute
This can be used to make carbon copies into the sign value for the Business Stream that enters as the server advertisement by intermediate system.
Business Stream attribute-appointing system
Whether attribute type coupling 3 systems that are used for this appointment of identification have informed this Business Stream advertisement.
Business Stream attribute-frequency range and maximum delay
Attribute type 4 is used to specify the maximum delay of frequency range demand and this Business Stream
Keep 0 so that be used on the business of best effort (effort).
Business Stream attribute-DiffServ and TOS (COS) revise
Attribute type 5 is used to specify new numerical value and gives TOS or Diffserv in this IP packets of information gauge outfit.
Figure 25 is the information format that is used to specify the number requirement
| 4 bit group sums of the type of number | 2 bit sets of numbers types | 2 bit group length | Numerical value | 2 bit sets of numbers types | ... |
Numerical value comprises the beginning number and requires length of number or the like
Figure 26 is used to specify the information pattern that number is informed
| 4 bit group sums of the type of number | 2 bit sets of numbers types | 2 bit group length | Numerical value | 2 bit sets of numbers types | ... |
Numerical value comprises the beginning number and authorizes length of number or the like.
Figure 27 is used to specify the more information pattern of new demand of number
| 4 bit group sums of the type of number | 2 bit sets of numbers types | 2 bit sets of numbers types | 2 bit sets of numbers types | 2 bit sets of numbers types | ... |
Figure 28 is for being used to specify number updated information pattern
| 4 bit group serial numbers | 4 bit group sums of the type of number | 2 bit sets of numbers types | 2 bit group length | Numerical value | 2 bit sets of numbers types | 2 bit group length | ... |
In the serial number two the highest bits will indicate first, centre or final updating packets of information.In the serial number 31,30 bits are initial and next bit.
Next bit of bits of original
10 single packets of information
11 first information bags
01 average information bags
00 last packets of information
Figure 29 is used to specify number to upgrade the information pattern of informing
| 4 bit group row serial numbers | 4 bit group sums of the type of number | 2 bit sets of numbers types | 2 bit group length | Numerical value | 2 bit sets of numbers types | 2 bit group length | ... |
In the serial number two the highest bits will indicate first, centre or final updating packets of information.In the serial number 31,30 bits are initial and next bit.
Next bit of bits of original
10 single packets of information
11 first information bags
01 average information bags
00 last packets of information
Though Wen Zhongyi answers preferred embodiment explanation the present invention, consummate present technique person need understand and can make alterations and change the foregoing description, and does not depart from spirit of the present invention and viewpoint.Otherwise the present invention is all modifications and the similar pattern of being carried out in the defined viewpoint in the claim that is encompassed in hereinafter.Must carry out the explanation of broad sense to the viewpoint of claim, so the modification and the similar pattern of all this type are contained in the present invention.
Claims (15)
1. the system of a managing wide frequency IP service in second layer radio network is characterized in that this system comprises:
At least one intermediate system, be used to receive the business that enters from the outside, and business is forwarded at least one terminal system, and will be forwarded to the outside from the response business of at least one terminal system, wherein this at least one intermediate system is transmitted the service request packets of information at least one terminal system that can use, and this intermediate system writes down the service advertisement that at least one terminal system provides;
At least one terminal system, its advertisement and service information is provided on this second layer network, if wherein this at least one intermediate system of the decision of at least one terminal system indication is transmitted the business that enters a source and is arrived another terminal system, this at least one this Business Stream information of terminal system energy advertisement is to other intermediate system, and each at least one terminal system advertising service information on this second layer network wherein, and at least one intermediate system is always based on transmitting this Business Stream by the Business Stream of this at least one terminal system advertisement, and respectively this at least one terminal system can increase shared load fast, and shut down slowly in carrying out, and the other system in the interrupt network not, and do not influence this service; And
At least one supervisory control system, the login item of all systems of this system handles in second layer network, respond the requirement of any new system, and for service discovery server tabular specific in this network, carry out as the assigned number authorization server for this second layer network, and action is as administration agent mechanism, and this organization management signs in to all systems of this at least one supervisory control system.
2. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 is characterized in that,
This at least one intermediate system, also be used for monitoring by at least one terminal system institute advertisement, and be the service information of at least one supervisory control system institute relaying, store this at least one terminal system, and this at least one supervisory control system is in the server tabular of at least one intermediate system, store advertisement in the Business Stream form except this server tabular, the business of new demand is forwarded to a system at least one terminal system of finding out in the server tabular from then on, be based upon the Business Stream of at least one terminal system institute advertisement, transmit this Business Stream, and this intermediate system also is used to learn the service advertisement from least one terminal system; And
This at least one terminal system, advertisement and service information is provided wherein comprises the operation of at least one terminal system service login, and this serves congestion state, and is used for the server tabular of special services in second layer network.
3. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2, it is characterized in that, for the packets of information of not mating any advertising business stream, this Business Stream is to be linked or any packets of information by the specified TCP of pattern matching principle, and this server tabular is suitable for inquiry, and this server tabular is searched based on yardstick and other the strategy responded by the system at least one terminal system, and has specific service and service stream classification to allow carrying out this operation fast by pattern matching network processor in the pattern matching principle.
4. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2, it is characterized in that, wherein this Business Stream advertisement comprises the Business Stream attribute, this Business Stream attribute comprises the quality of the instant service of using that needs Backup, and this Business Stream advertisement also comprises the Business Stream attribute, this attribute can insert or remove indicate label or revise service type, and the priority in the packets of information gauge outfit indicate and switch and the DiffServ priority to support multi-protocols.
5. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2, it is characterized in that, wherein this assigned number authorized agreement is managed all numbers, these numbers are worked as same logical ip device on this network jointly together by these servers, and service information, Business Stream advertisement and assigned number authorized agreement also allow at least one terminal system load balance service jointly, similarly is the service of a logical terminal (LTERM) system.
6. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that wherein this at least one intermediate system is an ip router.
7. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that, wherein this at least one intermediate system device that is a switch type.
8. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that wherein this at least one terminal system is a http server.
9. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that wherein this at least one terminal system is a ftp server.
10. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that wherein this at least one system is the fire compartment wall acting server.
11. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that wherein this at least one terminal system is that IPSEC wears the tunnel server.
12. the system of managing wide frequency IP service in second layer radio network as claimed in claim 1 or 2 is characterized in that wherein this at least one terminal system is the network address translation server.
13. a managing wide frequency IP service method in second layer radio network, wherein this network comprises at least one terminal system, at least one intermediate system and at least one supervisory control system, it is characterized in that, this method comprises the following step:
By at least one terminal system advertising service information;
By at least one this service information of supervisory control system relaying;
Monitor this service information by at least one intermediate system;
By at least one intermediate system at least one terminal system and at least one supervisory control system are stored in the server tabular of this at least one intermediate system;
By this at least one intermediate system with this advertisement except being stored in the server tabular, also be stored into the Business Stream tabular;
The business that will be required recently by this at least one intermediate system is forwarded to wherein in of this at least one terminal system that server tabular thus finds out;
By this at least one intermediate system,, and transmit this Business Stream based on Business Stream by this at least one terminal system advertisement; And
Receive business from the outside, and this business is forwarded at least one terminal system, and will be forwarded to the outside from the response business of at least one terminal system by this at least one intermediate system.
14. as claimed in claim 13 in the second layer radio network managing wide frequency IP service method, it is characterized in that, wherein in the pattern matching principle, specify this service or service stream classification to allow carrying out this operation more quickly by pattern matching network processor.
15. as claimed in claim 13 in the second layer radio network managing wide frequency IP service method, wherein this service information comprise the operation, service congestion state of the service of logining by server, for the server tabular of special services, this Business Stream advertisement comprises the Business Stream attribute, the quality that wherein comprises the instant service of using that needs Backup, and the Business Stream advertisement also comprises the Business Stream attribute, this attribute can insert or remove sign or label or revise COS, and the priority in the packets of information gauge outfit indicates switching and DiffServ priority to support multi-protocols.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021028699A CN100452730C (en) | 2002-01-28 | 2002-01-28 | Method and protocol for managing wide frequency IP service in two broadcasting network layers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021028699A CN100452730C (en) | 2002-01-28 | 2002-01-28 | Method and protocol for managing wide frequency IP service in two broadcasting network layers |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001015372A2 (en) * | 1999-08-24 | 2001-03-01 | Qwest Communications International, Inc. | Vdsl multiple service provider interface |
| US20010030977A1 (en) * | 1999-12-30 | 2001-10-18 | May Lauren T. | Proxy methods for IP address assignment and universal access mechanism |
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2002
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001015372A2 (en) * | 1999-08-24 | 2001-03-01 | Qwest Communications International, Inc. | Vdsl multiple service provider interface |
| US20010030977A1 (en) * | 1999-12-30 | 2001-10-18 | May Lauren T. | Proxy methods for IP address assignment and universal access mechanism |
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