CN100362837C - Method for setting-up network communication via address resolution between gate keepers - Google Patents
Method for setting-up network communication via address resolution between gate keepers Download PDFInfo
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- CN100362837C CN100362837C CNB031785514A CN03178551A CN100362837C CN 100362837 C CN100362837 C CN 100362837C CN B031785514 A CNB031785514 A CN B031785514A CN 03178551 A CN03178551 A CN 03178551A CN 100362837 C CN100362837 C CN 100362837C
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Abstract
The present invention discloses a method for setting up network communication via address resolution among gatekeepers, which aims at a VOIP network using an H. 323 protocol. The method comprises the following procedures: address resolution requests of initiating gateways or gatekeepers are received; a plurality of destination gatekeeper addresses are found by searching a table to obtain priority levels of a plurality of destination gatekeepers according to called phone numbers in the address resolution requests; the address resolution requests are transmitted to the destination gatekeepers; if at least one of the destination gatekeepers makes an address resolution response according to the received address resolution requests within a predetermined time, a network is established according to the address resolution response. The present invention has the advantages of network reliability improvement and cost saving. The present invention provides services required by users for the users.
Description
Technical field
The present invention relates to IP phone or FAX network system, relate in particular to gatekeeper in IP phone or the FAX network system and the address resolution method between the gatekeeper.
Background technology
Along with the development of IP technology, the application of IP phone or fax becomes the another great development focus after the internet.IP phone or facsimile network generally are made of IP network and corresponding webmaster, charging and the business system of gateway (GW), gatekeeper, support IP phone or facsimile transmission.Wherein, the gatekeeper is the key equipment of entire I P phone or FAX network system, be responsible for to make up IP phone or facsimile network and finish IP phone or the routing management of facsimile network, safety management and with the docking of other networks.
For the gatekeeper in IP phone or the facsimile network, route querying is its basic functions.Route querying is divided into calls out route querying and cross-domain call route querying in the territory.Call out the calling that is meant between the intradomain gateway of same gatekeeper administrative area in the territory, call out route querying method commonly used in the territory and be the mapping table of on the gatekeeper, preserving E164 number (or URL address, Email address) and IP address, the gatekeeper is when receiving the address resolution request of initiating gateway, find the purpose gateway address by tabling look-up, and reply to the initiation gateway.Cross-domain call is meant the calling between the gateway of different gatekeepers under administering, cross-domain call route querying method commonly used is that this gatekeeper is when receiving the address resolution request of initiating gateway, find purpose gatekeeper address by tabling look-up, send address resolution request message to the purpose gatekeeper then, after waiting to receive purpose gatekeeper's address resolution response message, the purpose gateway address that carries in the address resolution response message is replied to the initiation gateway, thereby set up network service.
Along with increasing of the network equipment, the equipment between the different operators can interconnect, and when cross-domain call took place, this gatekeeper the situation that a plurality of purpose gatekeepers are searched can occur when carrying out route querying.Because the operator under a plurality of purpose gatekeepers that find this moment may be different, and these a plurality of purpose gatekeepers' the degree of reliability also can be different with disposal ability, select route that different purpose gatekeepers can cause final foundation conversation and network condition also with different so, therefore take which kind of method to send the address resolution request to these a plurality of purpose gatekeepers that find, and, become a very crucial problem for the client provides different Scheme Choice.
In the prior art when a plurality of purpose gatekeeper appears in this gatekeeper when carrying out route querying, the general Scheme Choice of carrying out with different relations that do not provide at purpose gatekeeper's different situations, usually realize as follows: when finding a plurality of purpose gatekeeper, only the some purpose gatekeepers in a plurality of purpose gatekeepers send the address resolution request, if what this gatekeeper received is the address resolution response message, then resolve response message to initiating gateway or gatekeeper's return address; If this gatekeeper receives is the address resolution refuse information or surpasses the scheduled time, then resolve refuse information to initiating gateway or gatekeeper's return address.As shown in Figure 1, what Fig. 1 received with this gatekeeper is that the address resolution response message is an example, when this gatekeeper is that this GK is when finding a plurality of purpose gatekeeper, only a purpose gatekeeper in a plurality of purpose gatekeepers is that GK1 sends the address resolution request, this gatekeeper receives the address resolution response message, then finish address resolution, resolve response message to initiating gateway or gatekeeper's return address.
Along with the increase of VOIP network complexity, for various reasons, operator wishes to make one's options in a plurality of routes according to the requirement of oneself.Particularly, whether can from a plurality of purpose gatekeepers, obtain routing iinformation, just seem especially important according to Carrier Requirements for cross-domain call.
For consideration to the gatekeeper's device processes ability and the degree of reliability, in some cases, operator wish route querying to a plurality of purpose gatekeepers between have different priority, select gatekeeper's equipment for use according to the priority of setting, and present prior art is difficult to satisfy this demand of operator.
Adopt different route network quality possibilities different, under some situation, operator wishes to send LRQ to a plurality of purpose gatekeepers as far as possible, thereby obtains more routing iinformation, so that use the route selecting method to obtain best route, and present prior art is difficult to satisfy this demand of operator.
Summary of the invention
In view of this, the objective of the invention is to overcome the deficiencies in the prior art, provide a kind of can satisfy operator according to oneself intention and the preferred route of rule, improve network reliability, the address resolution of passing through between the gatekeeper of saving cost sets up the method for network service, this method comprises step at using the H.323 VOIP network of agreement:
Receive the address resolution request of initiating gateway or gatekeeper;
According to called phone number in the described address resolution request, find a plurality of purpose gatekeepers address by tabling look-up and obtain described a plurality of purpose gatekeepers' priority level;
Send the address resolution request to described a plurality of purpose gatekeepers;
If at least one among described a plurality of purpose gatekeeper made address resolution according to the described address resolution request that receives within the predetermined time and replied;
Reply according to described address resolution and to set up network.
Optionally, also comprise step,, indicate this network can not set up at present to the user if neither one makes within the predetermined time that address resolution replys among described a plurality of purpose gatekeeper.
Preferably, the described step that sends the address resolution request to described a plurality of purpose gatekeepers comprises and utilizes unicast mode or/and the multicast pattern sends described address resolution request.
Optionally, when sending address resolution request employing unicast mode to described a plurality of purpose gatekeepers, comprise step:
The priority level that obtains according to tabling look-up sends the address resolution request to described a plurality of purpose gatekeepers successively according to priority order from high to low.
Preferably, describedly comprise to the step that described a plurality of purpose gatekeepers send the address resolution request successively according to priority order from high to low:
Send described address resolution request to the current supreme good gatekeeper of described a plurality of purpose gatekeeper's medium priorities;
Judge whether the current supreme good gatekeeper of described priority makes address resolution in the given time and reply;
If this gatekeeper receives that at least one address resolution replys in the given time, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If this gatekeeper receives whole address resolution refusal or surpasses the scheduled time in the given time, then judge address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority whether be lowermost level gatekeeper among described a plurality of purpose gatekeeper;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be not lowermost level gatekeeper among described a plurality of purpose gatekeeper, then the purpose gatekeeper to the low one-level of priority sends described address resolution request, carries out describedly to judge whether the current supreme good gatekeeper of described priority makes the step that address resolution is replied in the given time;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Optionally, when sending address resolution request employing multicast pattern to described a plurality of purpose gatekeepers, comprise step:
Send described address resolution request simultaneously to described a plurality of purpose gatekeepers;
Judge whether described a plurality of purpose gatekeeper all replys in the given time;
If all reply in the given time and have at least an address resolution to reply, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If all reply in the given time for the address resolution refusal or above the scheduled time, then address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Preferably, when sending address resolution request employing multicast pattern to described a plurality of purpose gatekeepers, also comprise step:
Send described address resolution request simultaneously to described a plurality of purpose gatekeepers;
Judge whether this gatekeeper receives that in the given time at least one address resolution replys;
Reply if receive at least one address resolution in the given time, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If receive whole address resolution refusals of described a plurality of purpose gatekeepers in the given time or surpass the scheduled time, then address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Optionally, when sending the integrated mode of address resolution request employing clean culture and multicast to described a plurality of purpose gatekeepers, comprise step:
The priority level that obtains according to tabling look-up is divided into groups to described a plurality of purpose gatekeepers, and the purpose gatekeeper of equal priority divides at same group, and the purpose gatekeeper of different priorities divides in different groups;
According to the difference of respectively organizing priority of dividing, organize the described address resolution request that sends to a plurality of purpose gatekeepers of different priorities successively according to priority order from high to low, to priority identical on the same group in purpose gatekeeper send described address resolution request simultaneously.
Preferably, describedly organize the described address resolution request that sends to a plurality of purpose gatekeepers of different priorities successively according to priority order from high to low, to priority identical on the same group in purpose gatekeeper send described address resolution request simultaneously, comprise step:
Send described address resolution request and organize the current supreme good gatekeeper group of medium priority to described a plurality of purpose gatekeepers;
Judge whether this gatekeeper receives that in the given time at least one address resolution replys;
Reply if receive at least one address resolution in the given time, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If receive in the given time the current supreme good gatekeeper of described priority organize in all purpose gatekeepers address resolution refusal or surpass the scheduled time, then judge address resolution procedure in the scheduled time the current supreme good gatekeeper group of described priority whether be lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority group be not lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group, then this gatekeeper organizes the described address resolution request of transmission to the purpose gatekeeper of the low one-level of priority, carries out described this gatekeeper of judgement and whether receives the step that at least one address resolution is replied in the given time;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Optionally, describedly organize the described address resolution request that sends to a plurality of purpose gatekeepers of different priorities successively according to priority order from high to low, to priority identical on the same group in purpose gatekeeper send described address resolution request simultaneously, also comprise step:
Send described address resolution request and organize the current supreme good gatekeeper group of medium priority to described a plurality of purpose gatekeepers;
Judge whether all purpose gatekeepers all reply in the given time in the current supreme good gatekeeper group of described priority;
If all reply in the given time and have at least an address resolution to reply, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If all reply to the address resolution refusal in the given time or surpass the scheduled time, then judge address resolution procedure in the scheduled time the current supreme good gatekeeper group of described priority whether be that lowermost level purpose gatekeeper organizes in described a plurality of purpose gatekeeper's group;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority group be not lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group, then this gatekeeper organizes the described address resolution request of transmission to the purpose gatekeeper of the low one-level of priority, and carries out the described step of judging whether all purpose gatekeepers all reply in the given time in the current supreme good gatekeeper group of described priority;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
By adopting unicast mode, this gatekeeper sends the address resolution request to a plurality of purpose gatekeepers successively according to the priority level of setting, as long as resolving, purpose gatekeeper's return address that priority is high replys, then the Home Network garrison general can not send the address resolution request to the low purpose gatekeeper of priority, can greatly raise the efficiency, save cost.And by adopting the multicast pattern, this gatekeeper sends the address resolution request to different purpose gatekeepers simultaneously, do not need to obtain the situation that all purpose gatekeepers reply for setting, as long as this gatekeeper receives that wherein any one purpose gatekeeper's address resolution is replied, then finish address resolution work, therefore, the degree of reliability and the speed of address resolution have been improved; Need obtain the situation that all purpose gatekeepers reply for setting, this gatekeeper can obtain routing iinformation as much as possible, lays a good foundation for the user selects best route.And by clean culture and multicast integrated mode, the characteristics of clean culture and multicast have been given prominence to, a kind of method of the address resolution of flexible processing more request is provided, can bring into play the fast characteristics of reliability height, processing speed of multicast within the specific limits, can resemble again simultaneously and set the order that sends the address resolution request the clean culture.
Description of drawings
Fig. 1 adopts mode of unicast to set up the method flow diagram of network service by the address resolution between the gatekeeper.
Fig. 2 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting the multicast mode need obtain all purpose gatekeepers' answer.
Fig. 3 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting the multicast mode not need to obtain all purpose gatekeepers' answer.
Fig. 4 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting clean culture and multicast combination not to need to obtain all purpose gatekeepers' answer.
Fig. 5 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting clean culture and multicast combination need obtain all purpose gatekeepers' answer.
Embodiment
For the clearer understanding the present invention of the technical staff who makes the technical field of the invention, now be described with reference to the accompanying drawings.
Fig. 1 adopts mode of unicast to set up the method flow diagram of network service by the address resolution between the gatekeeper.Wherein,
In step 100, the address resolution request is divided into address resolution request (ARQ) that gateway under this gatekeeper sends to this gatekeeper and other gatekeepers address resolution request (LRQ) to this gatekeeper transmission.Initiate gateway or gatekeeper and send the address resolution request to this gatekeeper, this gatekeeper receives the address resolution request (ARQ/LRQ) of initiating gateway or gatekeeper.
In step 110, this gatekeeper is the called phone number that comprises in the address resolution request that receives of this GK basis, finds a plurality of purpose gatekeepers address by tabling look-up.In an embodiment of the present invention, this gatekeeper finds three purpose gatekeepers by tabling look-up, and these three purpose gatekeepers are respectively GK1, GK2, GK3.
In step 120, obtain these three purpose gatekeepers' priority level according to tabling look-up, in an embodiment of the present invention, the priority level of GK1, GK2, GK3 is respectively 3,2,1.Certainly, do not go up at same priority and may have a plurality of purpose gatekeepers, form other purpose of equal priority gatekeeper group, a plurality of purpose gatekeepers that under unicast mode, same priority do not gone up can be in order or additive method send the address resolution request.
In step 130, this gatekeeper sends address resolution request (LRQ) to these three current supreme good gatekeepers of purpose gatekeeper medium priority, and after step 120, the current supreme good gatekeeper of priority is GK1, after step 170, the current supreme good gatekeeper of priority is GK2 or GK3.
In step 140, judge whether the current supreme good gatekeeper of priority GK1 makes address resolution in the given time and reply (LCF), replys if make address resolution in the given time, and then execution in step 150;
If make address resolution refusal (LRJ) in the given time or surpass the scheduled time, then execution in step 160.
In step 150, this gatekeeper finishes address resolution, and the transmission address resolution is replied (ACF) and replied (LCF) to described initiation gatekeeper to described initiation gateway or transmission address resolution.
In step 160, judge address resolution procedure in the scheduled time described current supreme good gatekeeper whether be lowermost level gatekeeper among described three purpose gatekeepers;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be not lowermost level gatekeeper among described three purpose gatekeepers, then execution in step 170;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described three purpose gatekeepers, then execution in step 180.
In an embodiment of the present invention, when the current supreme good gatekeeper of priority is GK1, then not the lowermost level gatekeeper, execution in step 170; When the current supreme good gatekeeper of priority is GK2, then not the lowermost level gatekeeper, execution in step 170; When the current supreme good gatekeeper of priority is GK3, then be the lowermost level gatekeeper, execution in step 180.
In step 170, this gatekeeper sends described address resolution request to the purpose gatekeeper of the low one-level of priority, and execution in step 140.
When the current supreme good gatekeeper of priority was GK1, this gatekeeper sent described address resolution request to the purpose gatekeeper GK2 of the low one-level of priority, and execution in step 140;
When the current supreme good gatekeeper of priority was GK2, this gatekeeper sent described address resolution request to the purpose gatekeeper GK3 of the low one-level of priority, and execution in step 140.
In step 180, this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Fig. 2 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting the multicast mode need obtain all purpose gatekeepers' answer.Wherein,
In step 200, initiate gateway or gatekeeper and send the address resolution request to this gatekeeper, this gatekeeper receives the address resolution request of initiating gateway or gatekeeper.
In step 210, this gatekeeper finds a plurality of purpose gatekeepers address according to the called phone number that comprises in the address resolution request that receives by tabling look-up.In an embodiment of the present invention, this gatekeeper finds three purpose gatekeepers, i.e. GK1, GK2, GK3 by tabling look-up.
In step 220, this gatekeeper sends described address resolution request simultaneously to described three purpose gatekeepers.
In step 230, judge that whether described three purpose gatekeepers all reply in the given time, if all reply in the given time and have at least an address resolution to reply, then execution in step 240; If all answer is refused for address resolution or surpassed the scheduled time in the given time, then execution in step 250.
In step 240, finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
In step 250, the address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Fig. 3 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting the multicast mode not need to obtain all purpose gatekeepers' answer.Wherein,
In step 300, initiate gateway or gatekeeper and send the address resolution request to this gatekeeper, this gatekeeper receives the address resolution request of initiating gateway or gatekeeper.
In step 310, this gatekeeper finds a plurality of purpose gatekeepers address according to the called phone number that comprises in the address resolution request that receives by tabling look-up.In an embodiment of the present invention, this gatekeeper finds three purpose gatekeepers, i.e. GK1, GK2, GK3 by tabling look-up.
In step 320, this gatekeeper sends described address resolution request simultaneously to described three purpose gatekeepers.
In step 330, judge whether this gatekeeper receives that in the given time at least one address resolution replys, and replys if receive at least one address resolution, and then execution in step 340; If receive whole address resolution refusals of described a plurality of purpose gatekeepers or surpass the scheduled time, then execution in step 350.
In step 340, this gatekeeper finishes address resolution, sends address resolution and replys described initiation gateway or gatekeeper.
In step 350, this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Fig. 4 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting clean culture and multicast combination not to need to obtain all purpose gatekeepers' answer.Wherein,
In step 400, initiate gateway or gatekeeper and send the address resolution request to this gatekeeper, this gatekeeper receives the address resolution request of initiating gateway or gatekeeper.
In step 410, this gatekeeper finds a plurality of purpose gatekeepers address according to the called phone number that comprises in the address resolution request that receives by tabling look-up.In an embodiment of the present invention, this gatekeeper finds four purpose gatekeepers, i.e. GK1, GK2, GK3, GK4 by tabling look-up.
In step 420, obtain described four purpose gatekeepers' priority level according to tabling look-up, the priority of GK1, GK2, GK3, GK4 is respectively: 3,3,1,1.
In step 430, according to described four purpose gatekeepers' priority level, described 4 purpose gatekeepers are divided into groups, the purpose gatekeeper of equal priority divides at same group, and the purpose gatekeeper of different priorities divides in different groups.The priority that is GK1, GK2 is identical, all is to comprise GK1 and GK2 in 3, the first groups; The priority of GK3, GK4 is identical, all is to comprise GK3 and GK4 in 1, the second group; First group priority is higher than second group priority.
In step 440, send described address resolution request and organize the current supreme good gatekeeper group of medium priority to described first group and second group of these two purpose gatekeeper.After step 430, the current supreme good gatekeeper group of priority is first group, and after step 490, the current supreme good gatekeeper group of priority is second group.
In step 450, judge whether this gatekeeper receives that in the given time at least one address resolution replys, and replys if receive at least one address resolution, and then execution in step 460; Organize interior all purpose gatekeepers' address resolution refusal or surpass the scheduled time if receive the current supreme good gatekeeper of described priority, then execution in step 470.
In step 460, this gatekeeper finishes address resolution, sends address resolution and replys described initiation gateway or gatekeeper.
In step 470, judge address resolution procedure in the scheduled time the current supreme good gatekeeper group of described priority whether be lowermost level purpose gatekeeper group in described two purpose gatekeepers group,
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority group be not lowermost level purpose gatekeeper group in described two purpose gatekeepers group, then execution in step 490;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described two purpose gatekeepers, then execution in step 500.
When the current supreme good gatekeeper group of priority is first group, then not lowermost level purpose gatekeeper group, execution in step 490;
When the current supreme good gatekeeper group of priority is second group, then be lowermost level purpose gatekeeper group, execution in step 500.
In step 490, this gatekeeper organizes the described address resolution request of transmission to the purpose gatekeeper of the low one-level of priority, and execution in step 450.
In step 500, this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Fig. 5 sets up the method flow diagram of network service by the address resolution between the gatekeeper when adopting clean culture and multicast combination need obtain all purpose gatekeepers' answer.Wherein,
In step 600, initiate gateway or gatekeeper and send the address resolution request to this gatekeeper, this gatekeeper receives the address resolution request of initiating gateway or gatekeeper.
In step 610, this gatekeeper finds a plurality of purpose gatekeepers address according to the called phone number that comprises in the address resolution request that receives by tabling look-up.In an embodiment of the present invention, this gatekeeper finds four purpose gatekeepers, i.e. GK1, GK2, GK3, GK4 by tabling look-up.
In step 620, obtain described 4 purpose gatekeepers' priority level according to tabling look-up, the priority of GK1, GK2, GK3, GK4 is respectively: 3,3,1,1.
In step 630, priority level according to described 4 purpose gatekeepers, described 4 purpose gatekeepers are divided into groups, the purpose gatekeeper of equal priority divides at same group, the purpose gatekeeper of different priorities divides in different groups, the priority that is GK1, GK2 is identical, all is to comprise GK1 and GK2 in 3, the first groups; The priority of GK3, GK4 is identical, all is to comprise GK3 and GK4 in 1, the second group; First group priority is higher than second group priority.
In step 640, send described address resolution request and organize the current supreme good gatekeeper group of medium priority to described two purpose gatekeepers.
After step 630, the current supreme good gatekeeper group of priority is first group, and after step 680, the current supreme good gatekeeper group of priority is second group.
In step 650, judge whether all purpose gatekeepers all reply in the given time in the current supreme good gatekeeper group of described priority,
If all reply in the given time and have at least an address resolution to reply, then execution in step 660;
If all answer is refused for address resolution or surpassed the scheduled time in the given time, then execution in step 670;
In step 660, this gatekeeper finishes address resolution, sends address resolution and replys described initiation gateway or gatekeeper.
In step 670, judge address resolution procedure in the scheduled time the current supreme good gatekeeper group of described priority whether be lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group,
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority group be not lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group, then execution in step 680;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then execution in step 690.
When the current supreme good gatekeeper group of priority is first group, then not lowermost level purpose gatekeeper group, execution in step 680;
When the current supreme good gatekeeper group of priority is second group, then be lowermost level purpose gatekeeper group, execution in step 690.
In step 680, this gatekeeper organizes the described address resolution request of transmission to the purpose gatekeeper of the low one-level of priority, and execution in step 650.
In step 690, this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
Claims (10)
1. set up the method for network service by the address resolution between the gatekeeper for one kind,, comprise step at using the H.323 VOIP network of agreement:
Receive the address resolution request of initiating gateway or gatekeeper;
According to called phone number in the described address resolution request, find a plurality of purpose gatekeepers address by tabling look-up and obtain described a plurality of purpose gatekeepers' priority level;
Send the address resolution request to described a plurality of purpose gatekeepers;
If at least one among described a plurality of purpose gatekeeper made address resolution according to the described address resolution request that receives within the predetermined time and replied;
Reply according to described address resolution and to set up network.
2. the method for setting up network service by the address resolution between the gatekeeper as claimed in claim 1, it is characterized in that, also comprise step,, indicate this network can not set up at present to the user if neither one makes within the predetermined time that address resolution replys among described a plurality of purpose gatekeeper.
3. the method for setting up network service by the address resolution between the gatekeeper as claimed in claim 1, it is characterized in that the described step that sends the address resolution request to described a plurality of purpose gatekeepers comprises utilizes unicast mode or/and the multicast pattern sends described address resolution request.
4. as claimed in claim 3ly set up the method for network service, it is characterized in that, when sending the address resolution request to described a plurality of purpose gatekeepers and adopt unicast mode, comprise step by the address resolution between the gatekeeper:
The priority level that obtains according to tabling look-up sends the address resolution request to described a plurality of purpose gatekeepers successively according to priority order from high to low.
5. as claimed in claim 4ly set up the method for network service, it is characterized in that, describedly comprise to the step that described a plurality of purpose gatekeepers send the address resolution request successively according to priority order from high to low by the address resolution between the gatekeeper:
Send described address resolution request to the current supreme good gatekeeper of described a plurality of purpose gatekeeper's medium priorities;
Judge whether the current supreme good gatekeeper of described priority makes address resolution in the given time and reply;
If this gatekeeper receives that at least one address resolution replys in the given time, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If this gatekeeper receives whole address resolution refusal or surpasses the scheduled time in the given time, then judge address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority whether be lowermost level gatekeeper among described a plurality of purpose gatekeeper;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be not lowermost level gatekeeper among described a plurality of purpose gatekeeper, then the purpose gatekeeper to the low one-level of priority sends described address resolution request, carries out describedly to judge whether current supreme good gatekeeper of described priority or purpose gatekeeper group make the step that address resolution is replied in the given time;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
6. as claimed in claim 3ly set up the method for network service, it is characterized in that, when sending the address resolution request to described a plurality of purpose gatekeepers and adopt the multicast pattern, comprise step by the address resolution between the gatekeeper:
Send described address resolution request simultaneously to described a plurality of purpose gatekeepers;
Judge whether described a plurality of purpose gatekeeper all replys in the given time;
If all reply in the given time and have at least an address resolution to reply, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If all reply in the given time for the address resolution refusal or above the scheduled time, then address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
7. as claimed in claim 3ly set up the method for network service, it is characterized in that, when sending the address resolution request to described a plurality of purpose gatekeepers and adopt the multicast pattern, also comprise step by the address resolution between the gatekeeper:
Send described address resolution request simultaneously to described a plurality of purpose gatekeepers;
Judge whether this gatekeeper receives that in the given time at least one address resolution replys;
Reply if receive at least one address resolution in the given time, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If receive whole address resolution refusals of described a plurality of purpose gatekeepers in the given time or surpass the scheduled time, then address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
8. as claimed in claim 3ly set up the method for network service, it is characterized in that, when sending the address resolution request to described a plurality of purpose gatekeepers and adopt the integrated mode of clean culture and multicast, comprise step by the address resolution between the gatekeeper:
The priority level that obtains according to tabling look-up is divided into groups to described a plurality of purpose gatekeepers, and the purpose gatekeeper of equal priority divides at same group, and the purpose gatekeeper of different priorities divides in different groups;
According to the difference of respectively organizing priority of dividing, organize the described address resolution request that sends to a plurality of purpose gatekeepers of different priorities successively according to priority order from high to low, to priority identical on the same group in purpose gatekeeper send described address resolution request simultaneously.
9. the method for setting up network service by the address resolution between the gatekeeper as claimed in claim 8, it is characterized in that, describedly organize the described address resolution request that sends to a plurality of purpose gatekeepers of different priorities successively according to priority order from high to low, to priority identical on the same group in purpose gatekeeper send described address resolution request simultaneously, comprise step:
Send described address resolution request and organize the current supreme good gatekeeper group of medium priority to described a plurality of purpose gatekeepers;
Judge whether this gatekeeper receives that in the given time at least one address resolution replys;
Reply if receive at least one address resolution in the given time, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If receive in the given time the current supreme good gatekeeper of described priority organize in all purpose gatekeepers address resolution refusal or surpass the scheduled time, then judge address resolution procedure in the scheduled time the current supreme good gatekeeper group of described priority whether be lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority group be not lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group, then this gatekeeper organizes the described address resolution request of transmission to the purpose gatekeeper of the low one-level of priority, carries out described this gatekeeper of judgement and whether receives the step that at least one address resolution is replied in the given time;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
10. the method for setting up network service by the address resolution between the gatekeeper as claimed in claim 8, it is characterized in that, describedly organize the described address resolution request that sends to a plurality of purpose gatekeepers of different priorities successively according to priority order from high to low, to priority identical on the same group in purpose gatekeeper send described address resolution request simultaneously, also comprise step:
Send described address resolution request and organize the current supreme good gatekeeper group of medium priority to described a plurality of purpose gatekeepers;
Judge whether all purpose gatekeepers all reply in the given time in the current supreme good gatekeeper group of described priority;
If all reply in the given time and have at least an address resolution to reply, then finish address resolution, send address resolution and reply described initiation gateway or gatekeeper;
If all reply to the address resolution refusal in the given time or surpass the scheduled time, then judge address resolution procedure in the scheduled time the current supreme good gatekeeper group of described priority whether be that lowermost level purpose gatekeeper organizes in described a plurality of purpose gatekeeper's group;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority group be not lowermost level purpose gatekeeper group in described a plurality of purpose gatekeeper's group, then this gatekeeper organizes the described address resolution request of transmission to the purpose gatekeeper of the low one-level of priority, and carries out the described step of judging whether all purpose gatekeepers all reply in the given time in the current supreme good gatekeeper group of described priority;
If address resolution procedure in the scheduled time the current supreme good gatekeeper of described priority be lowermost level gatekeeper or surpass the address resolution procedure scheduled time among described a plurality of purpose gatekeeper, then this gatekeeper address resolution failure sends address resolution and is denied to described initiation gateway or gatekeeper.
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| CNB031785514A CN100362837C (en) | 2003-07-15 | 2003-07-15 | Method for setting-up network communication via address resolution between gate keepers |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031785514A CN100362837C (en) | 2003-07-15 | 2003-07-15 | Method for setting-up network communication via address resolution between gate keepers |
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| Publication Number | Publication Date |
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| CN1571411A CN1571411A (en) | 2005-01-26 |
| CN100362837C true CN100362837C (en) | 2008-01-16 |
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| CN104618617B (en) * | 2015-01-30 | 2017-06-13 | 深圳市云之讯网络技术有限公司 | The polling dispatching method and device of gateway priority are landed based on VOIP |
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| CN1391396A (en) * | 2001-06-07 | 2003-01-15 | 华为技术有限公司 | Routing method for implementing intelligent IP telephone service |
| US20030012203A1 (en) * | 2001-03-20 | 2003-01-16 | Raj Deshpande | Method to optimally select bandwidth and priority for voice message packets in a voice over IP network |
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| WO2001084794A1 (en) * | 2000-05-04 | 2001-11-08 | Mci Worldcom, Inc. | Method and system for dynamic gateway selection in an ip telephony network |
| US20030012203A1 (en) * | 2001-03-20 | 2003-01-16 | Raj Deshpande | Method to optimally select bandwidth and priority for voice message packets in a voice over IP network |
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| CN1571411A (en) | 2005-01-26 |
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