CN104683234A - Communication network equipment routing method and device - Google Patents
Communication network equipment routing method and device Download PDFInfo
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Abstract
The invention provides a communication network equipment routing method, which comprises the following steps that a TCP (transmission control protocol) encapsulation layer and a signaling adaptation layer are added between a transmission layer and an application layer of a TCP/IP (Internet protocol) stack; the TCP encapsulation layer defines a signaling point code for network element equipment, the signaling point code corresponds to an IP address and a port number, and the network element equipment addressing in the whole network can be realized through the signaling point code; a global code of the whole network unique code of the equipment is translated into the signaling point code through the signaling adaptation layer, and then, a message is sent to a destination through a preset route according to the signaling point code.
Description
Technical field
The present invention relates to a kind of network communication method, particularly a kind of method for routing of communication network device and device.
Background technology
During communication network device networking, for supporting roaming and across miscellaneous services such as office's switchings, needing between support equipment interconnected between two.But the core network device of public network mainly adopts Signaling System Number 7 to carry out the route of equipment room at present.No. 7 signaling network is made up of their signaling link of signalling point, Signalling Transfer Point and connection.In No. 7 signaling network, signalling point (Signaling Point.SP): the communication net node being equipped with Common channel signalling system comprises source node and destination node.Signalling Transfer Point (Signaling Transfer Point.STP) is signal switching node signaling message being delivered to another signaling link from a signaling link.Signaling link (Signaling Link.SL) connects each signalling point, Signalling Transfer Point, is used to the physical link transmitting signaling message.Its SCCP layer protocol, on the basis of MTP layer definition PC (signaling point code), defines GT(global landmarks code) and SSN(Sub-System Number).
SCCP can carry out route flexibly according to the combination of PC, SSN and GT, to determine the reception of Signaling System Number 7 message between core network device or forwarding.SIGTRAN(Signaling Transport, signaling transfer protocol) protocol stack defines a series of adaptation layer protocol, be divided into IP agreement, signalling, signalling adaptation and signaling application etc. four layers, the Signaling System Number 7 transmitted be converted into transmit based on IP based on E1.In the IP network epoch, the application of Signaling System Number 7 then must be based upon on the basis of SIGTRAN stack.
But, adopt No. 7 signalling to carry out route cost huge.Be on the one hand because as mentioned above, its transport layer directly can not be carried on IP, has to pass through adaptation and the conversion of signaling.On the other hand, the too numerous and diverse redundancy of the Signaling System Number 7 based on legacy circuit-switched, when signaling counts location increase, signaling link way can sharply increase, and can not adapt to the core network based on IP.
Summary of the invention
In view of the problem existing for above-mentioned prior art, the invention provides a kind of new communication network device method for routing, to support the flexible route of communication core networks equipment room, directly can be carried on again the Routing Protocol of TCP/IP network.
For solving the problems of the technologies described above, the communication network device method for routing that the present invention proposes comprises the following steps:
Expansion ICP/IP protocol stack, increases TCP encapsulated layer and signaling adaptation layer between the transport layer and application layer of protocol stack; Described TCP encapsulated layer is network element device definition signaling point code, and signaling point code corresponds to IP address and port numbers, and adopt the coded system that the whole network is unified, the encapsulation function of TCP realizes the network element device addressing in the whole network by described signaling point code; Described signaling adaptation layer is the application layer of TCP encapsulation, when source device cannot obtain Destination Point Code, be signaling point code by the Global Title translation of numbering unique for the whole network of equipment, then according to signaling point code, message mail to destination by the route preset.
Preferably, when the TCP encapsulated layer of equipment receives the message of TCP layer, first judge whether the TCP Destination Point Code encapsulated in packet header equals the OPC Origination Point Code of current device, if be judged as equal, show that this message is this equipment message to be processed, then judge user type, message is issued signaling adaptation layer or operation layer process; If be judged as unequal, show that this message needs to forward, then utilize TCP encapsulated layer to carry out message transmission.
Preferably, whether the described TCP of utilization encapsulated layer carries out message transmission and specifically comprises: according to described Destination Point Code, search and have corresponding TCP to connect, if had in pre-configured link set, then message is sent to searched link, Message routing success; If no, judge whether acquiescence link, if there is acquiescence link, message has been sent to acquiescence link, otherwise abandons.
Preferably, the described acquiescence link that message is sent to specifically comprises: Signalling Transfer Point receives this message, if judge, Destination Point Code is not equal to local terminal signaling point code, then search TCP according to pre-configured link set to connect, when finding connection corresponding to signaling point code, then message is mail to this connection, Message routing success.
Preferably, described message is issued the process of signaling adaptation layer after, signaling adaptation layer receipt message, specifically comprise: judge in signaling adaptation layer header, whether called subscriber's global title is present in pre-configured local global title list, if judge to exist, show that message is that current device need be to be processed, then this message is sent to application layer process; If judge not exist, show that these message needs are forwarded, then utilize signaling adaptation layer to carry out message transmission.
Preferably, described utilize signaling adaptation layer carry out message send specifically comprise: according to different global title types, query routing in different global title routing tables, this routing table is pre-configured according to global title planning, save the mapping relations of global title and Destination Point Code, if inquire corresponding mapping relations, then the Destination Point Code in TCP encapsulation header is changed into the Destination Point Code configured in routing table, and send message to TCP encapsulated layer, then TCP encapsulated layer is utilized to carry out message transmission, Message routing success; If do not inquire corresponding mapping relations, then send message by acquiescence link.
Preferably, adopt unified message structure form between each network element device, described message structure comprises following five parts: tcp/ip header; HEAD FLAG, represents the beginning of TCP encapsulated message; TCP encapsulation header; Application layer message; With END FLAG, represent the end of TCP encapsulated message.
Preferably, the message of TCP encapsulated layer comprises: HEAD FLAG; TCP encapsulation header, it comprises five parameters: length, Destination Point Code, OPC Origination Point Code, user type, route counter; Application layer message; With END FLAG, wherein, TCP package module locates TCP encapsulated message by packet header of message, bag tail tag will and bag are long, and described user type indicates the classification of application layer, for the message distribution belonging to this node that will receive to corresponding application layer; Described route counter often subtracts 1 through a node, if 0 this bag will be dropped, occurs Routing loops for preventing TCP encapsulated layer user routing error.
Preferably, signaling adaptation layer message format comprises following five parts: protocols User represents language, destination address, source address, follow-up data length and application layer data; Wherein said protocols User represents that pragmatic corresponds to the interface of different application scene in diffServ network, comprises described global title in destination address and source address, completes route in a network to make source device not need the signaling point code of acquisition object equipment.
Preferably, described global title include but not limited to following one of them: equipment number, user ID or telephone number.
The invention allows for a kind of communication network device realizing said method, this equipment is arranged in the communication network of TCP/IP, and carries out route by this network to other network element devices, it is characterized in that, this equipment comprises with lower module:
Expansion module, for expanding ICP/IP protocol stack, increases TCP encapsulated layer and signaling adaptation layer between the transport layer and application layer of protocol stack; TCP encapsulated layer message reception module, for making the reception of TCP encapsulated layer from the message of TCP layer; TCP encapsulated layer message transmission module, for being sent to destination signaling point by message; Signaling adaptation layer message reception module, for making the reception of signaling adaptation layer from the message of TCP encapsulated layer; And signaling adaptation layer message transmission module, mail to object equipment for the route by presetting;
Wherein said TCP encapsulated layer is network element device definition signaling point code, described signaling point code corresponds to IP address and port numbers, adopt the coded system that the whole network is unified, the encapsulation function of TCP realizes the network element device addressing in the whole network by described signaling point code; Described signaling adaptation layer is the application layer of TCP encapsulation, when source device cannot obtain Destination Point Code, be signaling point code by the Global Title translation of numbering unique for the whole network of equipment, then according to signaling point code, message mail to destination by the route preset.
Preferably, described TCP encapsulated layer message reception module is arranged to: when the TCP encapsulated layer of equipment receives the message of TCP layer, first judge whether the TCP Destination Point Code encapsulated in packet header equals the OPC Origination Point Code of current device, if be judged as equal, show that this message is this equipment message to be processed, then judge user type, message is issued signaling adaptation layer or operation layer process; If be judged as unequal, show that this message needs to forward, then utilize TCP encapsulated layer to carry out message transmission.
Whether preferably, described TCP encapsulated layer message transmission module is arranged to: according to described Destination Point Code, search and have corresponding TCP to connect, if had, then message is sent to searched link in pre-configured link set, Message routing success; If no, judge whether acquiescence link, if there is acquiescence link, message has been sent to acquiescence link, otherwise abandons.
Preferably, described signaling adaptation layer message reception module, be arranged to: after message being sent to the process of signaling adaptation layer, judge in signaling adaptation layer header, whether called subscriber's global title is present in pre-configured local global title list, if judge to exist, show that message is that current device need be to be processed, then this message is sent to application layer process; If judge not exist, show that these message needs are forwarded, then utilize signaling adaptation layer to carry out message transmission.
Preferably, described signaling adaptation layer message transmission module is arranged to: according to different global title types, query routing in different global title routing tables, this routing table is pre-configured according to global title planning, save the mapping relations of global title and Destination Point Code, if inquire corresponding mapping relations, then the Destination Point Code in TCP encapsulation header is changed into the Destination Point Code configured in routing table, and send message to TCP encapsulated layer, then TCP encapsulated layer is utilized to carry out message transmission, Message routing success; If do not inquire corresponding mapping relations, then send message by acquiescence link.
Communication network device method for routing of the present invention can be applied in various communication network, have the following advantages: when equipment communicates mutually, without the need to interconnected between two, also can be transferred by miscellaneous equipment, these also can be service nodes for the equipment itself of transferring.Because switching can be carried out according to global title or signaling point code, the operation layer of communication equipment is made also to have possessed routing capabilities, and routing policy that can be different according to different service implementations.
After application this method, as long as ensure there is indirectly path between equipment in network is mutually, just can realize the communication between two of equipment, instead of directly interconnected as having in prior art, see Fig. 8 and Fig. 9.Therefore the deployment of network is convenient, flexible, only needs to have planned the signaling point code of all devices and global title and pre-configured, just can ensure the intercommunication of whole network.When disposing, some alternate routings can be planned, and when primary route fault, be switched in alternate routing, the robustness of network can also be improved.
Accompanying drawing explanation
Fig. 1 is the comnnnication protocol structure figure according to the embodiment of the present invention.
Fig. 2 is the schematic diagram of the message format that TCP of the present invention encapsulates.
Fig. 3 is the schematic diagram of signaling adaptation layer message format of the present invention.
Fig. 4 is the flow chart of the TCP encapsulated layer receipt message according to the embodiment of the present invention.
Fig. 5 is the flow chart sending message according to the TCP encapsulated layer of the embodiment of the present invention.
Fig. 6 is the flow chart of the signaling adaptation layer receipt message according to the embodiment of the present invention.
Fig. 7 is the flow chart sending message according to the signaling adaptation layer of the embodiment of the present invention.
Fig. 8 is according to the interconnected network equipment schematic diagram of the direct IP of the embodiment of the present invention.
Fig. 9 is the network equipment schematic diagram adopting TCP encapsulation/signaling adaptation route according to the present invention.
Figure 10 is the flow chart directly sending message according to the TCP encapsulated layer of the embodiment of the present invention.
Figure 11 is the flow chart of the TCP encapsulated layer forwarding messages according to the embodiment of the present invention.
Figure 12 is the flow chart of the signaling adaptation layer forwarding messages according to the embodiment of the present invention.
Embodiment
For doing further understanding to the present invention, be described in detail below in conjunction with the specific embodiment of accompanying drawing to method of the present invention.It will be appreciated by those skilled in the art that the accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other related contents can also be obtained according to these accompanying drawings.
First the present invention discloses a kind of communication network device method for routing, and the method carries out route to network element device in based on the communication network of TCP/IP, it is characterized in that comprising the following steps:
Expansion ICP/IP protocol stack, increases TCP encapsulated layer and signaling adaptation layer between the transport layer and application layer of protocol stack;
Described TCP encapsulated layer is network element device definition signaling point code, and signaling point code corresponds to IP address and port numbers, and adopt the coded system that the whole network is unified, the encapsulation function of TCP realizes the network element device addressing in the whole network by described signaling point code;
Described signaling adaptation layer is the application layer of TCP encapsulation, when source device cannot obtain Destination Point Code, be signaling point code by the Global Title translation of numbering unique for the whole network of equipment, then according to signaling point code, message mail to destination by the route preset.
Especially, in communication network device method for routing of the present invention, ICP/IP protocol stack is expanded.Increase two-layer between the transport layer and application layer of protocol stack, be respectively TCP encapsulated layer and signaling adaptation layer.After expansion, protocol stack structure as shown in Figure 1.
See Fig. 1, TCP encapsulated layer gives each network element device definition signaling point code using TCP/IP carrying, signaling point code corresponds to IP address and port numbers, the coded system that signaling point code adopts the whole network unified, like this, the encapsulation function of TCP just realizes the network element device addressing in the whole network by signaling point code.In whole IP communication network, use between each network element of ICP/IP protocol carrying and adopt unified message structure form.Particularly, adopt message to comprise five parts, that is: tcp/ip header, HEAD FLAG, TCP encapsulation header, application layer message and END FLAG five part.Fig. 2 is the schematic diagram of the message format that TCP of the present invention encapsulates.
The message of TCP encapsulated layer comprises: HEAD FLAG, TCP encapsulation header, application layer message and END FLAG.FLAG is the demarcation mark of TCP encapsulated message, and HEAD FLAG represents it is the beginning of TCP encapsulated message, and END FLAG represents it is the end of TCP encapsulated message.TCP package module by packet header of message, bag tail tag will and bag long come quick position TCP encapsulated message.TCP header comprises five parameters: length, Destination Point Code, OPC Origination Point Code, user type, route counter.Wherein, user type indicates the classification of application layer, and effect is to corresponding application layer by the message distribution belonging to this node that receives.Route counter is that this counter often subtracts 1 through a node in order to prevent TCP encapsulated layer user routing error from occurring Routing loops, if 0 this bag will be dropped.
Signaling adaptation layer is the application layer of TCP encapsulation, and message format comprises protocols User and represents language, destination address, source address, follow-up data length, application layer data five part, as shown in Figure 3.Wherein protocols User represents that language is the interface in order to correspond to different application scene in diffServ network, the A interface such as between soft switch center and Access Network, the D interface of soft switch center and home subscriber data center.Contain global title in destination address, source address, global title needs in numbering plan, carry out the unique numbering of the whole network, makes source device not need to obtain the signaling point code of object equipment, also can route in a network.Signaling adaptation layer realizes route and strengthens addressing function, when source device does not know Destination Point Code, permission equipment global title (device number, user ID or telephone number) is translated as signaling point code, then according to signaling point code, message is mail to destination by the route of setting in advance.
Fig. 4 is the flow chart of the TCP encapsulated layer receipt message according to the embodiment of the present invention.When TCP encapsulated layer receives the message of TCP layer, first judge whether the TCP Destination Point Code encapsulated in packet header equals the OPC Origination Point Code of this equipment.If equal, then this message is this equipment message to be processed, now needs to judge user type, message is issued signaling adaptation layer or other Business Processing.If it is unequal with the OPC Origination Point Code of this equipment to judge that TCP encapsulates the Destination Point Code in packet header, means that this message is the message of needs forwarding, then enter TCP encapsulated layer message transmission flow.
Fig. 5 is the flow chart sending message according to the TCP encapsulated layer of the embodiment of the present invention.When TCP encapsulated layer sends message, first according to Destination Point Code, search in pre-configured link set and whether have corresponding TCP to connect.If had, then send to this link.If no, need to have judged whether acquiescence link, have, send to acquiescence link, otherwise abandon.
Fig. 6 is the flow chart of the signaling adaptation layer receipt message according to the embodiment of the present invention.According to the difference of application scenarios, global title may be divided into device id, telephone number, user ID.When signaling adaptation layer receives message, to need to judge in signaling adaptation layer header called subscriber's global title whether in pre-configured local global title list.If have found corresponding global title in local global title list, show that message is that local device need be to be processed, then this message is sent to application layer process.If do not find these mapping relations, then illustrate that this message needs to be forwarded, enter signaling adaptation layer message transmission flow.
Fig. 7 is the flow chart sending message according to the signaling adaptation layer of the embodiment of the present invention.When signaling adaptation layer sends message, according to query routing in different global title type to different global title routing tables.This routing table is also good according to global title planning and configuration in advance, and global title list saves the mapping relations of device id, telephone number or user ID and Destination Point Code.If found corresponding mapping relations, then the Destination Point Code in TCP encapsulation header is changed into the coding configured in routing table, and sent to lower floor and TCP encapsulated layer, now entered TCP encapsulated layer transmission flow.If do not find corresponding mapping relations, then enter acquiescence link transmission flow.
Technical scheme of the present invention extends TCP encapsulated layer and signaling adaptation layer, and defines TCP encapsulated layer according to signaling point code reception and the flow process sending message, and signaling adaptation layer receives according to global title and sends the flow process of message.The program can ensure to need, in the network communicated between two, to be realized the communication of equipment room by the routing forwarding of miscellaneous equipment at equipment, greatly reduces networking complexity, please refer to accompanying drawing 8 and accompanying drawing 9.
For understanding technical scheme disclosed by the invention better, hereafter specific implementation of the present invention will be further described in conjunction with specific embodiments:
Embodiment 1
For starting up of terminal registration process.In this example, UT represents terminal, and SS represents soft switch center, and HLR represents home subscriber data center.STP represents Signalling Transfer Point, and transit point can be SS, also can be HLR, also can be any one network equipment supporting TCP encapsulation/signaling adaptation agreement.Comprise the steps:
Step 101.TCP encapsulated layer directly sends registration message;
Figure 10 is the flow chart directly sending message according to the TCP encapsulated layer of the embodiment of the present invention.Directly send registration message see Figure 10, TCP encapsulated layer specifically to comprise:
A1.UT start-up logging, it is 5000 that the TCP encapsulated layer of registration message carries OPC Origination Point Code, and Destination Point Code is 5001.After SS receives registration message, first enter TCP encapsulated layer receipt message flow process.Judge whether Destination Point Code equals local terminal signaling point code, if unequal, then the TCP encapsulated layer entering step b1 sends message flow.
B1. search TCP according to pre-configured link set to connect.Find the connection of signaling point code 5001 correspondence, then send to this link.
The success of start-up logging Message routing.
Step 102.TCP encapsulated layer forwards registration message;
Figure 11 is the flow chart of the TCP encapsulated layer forwarding messages according to the embodiment of the present invention.Forward registration message see Figure 11, TCP encapsulated layer specifically to comprise:
A2.UT start-up logging, it is 5000 that the TCP encapsulated layer of registration message carries OPC Origination Point Code, and Destination Point Code is 5001.After SS receives registration message, first enter TCP encapsulated layer receipt message flow process.If Destination Point Code is not equal to local terminal signaling point code, then the TCP encapsulated layer entering step b2 sends message flow.
B2. search TCP according to pre-configured link set to connect.Do not find the connection of signaling point code 5001 correspondence, then send to acquiescence link, this link points to STP.
C2.STP receives this message, first enters TCP encapsulated layer receipt message flow process, judges that Destination Point Code 5001 is not equal to local terminal signaling point code 5002, then enter TCP encapsulated layer and send message flow.Search TCP according to pre-configured link set to connect.Find the connection of signaling point code 5001 correspondence, then mail to this connection.
The success of start-up logging Message routing.
Step 103. signaling adaptation layer forwards registration message;
Figure 12 is the flow chart of the signaling adaptation layer forwarding messages according to the embodiment of the present invention.See Figure 12, signaling adaptation layer forwarding messages process specifically comprises:
A3.UT start-up logging, registration message carries Destination Point Code 5002.After SS receives registration message, if judge, Destination Point Code 5002 equals local terminal signaling point code, then send a message to signaling adaptation layer.Signaling adaptation layer judges that global title 0755 is not local global title (in this example, global title is telephone number), then enter signaling adaptation message transmission flow.
B3. search routing table, find the signaling point code of 0755 correspondence to be 5000, then rewrite Destination Point Code and be 5000 and send a message to TCP encapsulated layer, TCP encapsulated layer sends a message to STP (5000) according to the TCP connection of configuration.
C3.STP (5000) receives registration message, if judge, Destination Point Code equals local terminal signaling point code, then send a message to signaling adaptation layer.If signaling adaptation layer judges that global title 0755 is not local global title, then enter signaling adaptation message transmission flow.Search routing table, find the signaling point code of 0755 correspondence to be 6000, then rewrite Destination Point Code and be 6000 and send a message to TCP encapsulated layer, TCP encapsulated layer sends a message to STP (6000) according to the TCP connection of configuration.
D3.STP (6000) receives registration message, if judge, Destination Point Code equals local terminal signaling point code, then send a message to signaling adaptation layer.If signaling adaptation layer judges that global title 0755 is not local global title, then enter signaling adaptation message transmission flow.Search routing table, find the signaling point code of 0755 correspondence to be 6001, then rewrite Destination Point Code and be 6001 and send a message to TCP encapsulated layer, TCP encapsulated layer sends a message to HLR according to the TCP connection of configuration.HLR receives registration message, judges that signaling point code and global title are this locality, is then sent to operation layer process.
The success of start-up logging Message routing.
Owing to present invention focuses on message sink and the process of transmitting of describing TCP encapsulated layer and signaling adaptation layer in detail, therefore the data transfer of each layer existing in traditional TCT/IP protocol stack is repeated no more, this has also become the common prior art of this area, such as described acquiescence link transmission flow.Those skilled in the art it is also understood that above-mentioned first embodiment of the present invention is starting up of terminal registration process, are only the indefiniteness forms realizing technical solution of the present invention, are for understanding the present invention better and the example without loss of generality set forth.Communication network device method for routing of the present invention is equally applicable to any other to be needed to carry out in the process of route the network equipment.Above-mentioned amendment and modification are all within the scope of the invention.
Embodiment 2
The invention allows for a kind of communication network device realizing said method, this equipment is arranged in the communication network of TCP/IP, and carries out route by this network to other network element devices, it is characterized in that, this equipment comprises with lower module:
Expansion module, for expanding ICP/IP protocol stack, increases TCP encapsulated layer and signaling adaptation layer between the transport layer and application layer of protocol stack; TCP encapsulated layer message reception module, for making the reception of TCP encapsulated layer from the message of TCP layer; TCP encapsulated layer message transmission module, for being sent to destination signaling point by message; Signaling adaptation layer message reception module, for making the reception of signaling adaptation layer from the message of TCP encapsulated layer; And signaling adaptation layer message transmission module, mail to object equipment for the route by presetting;
Wherein said TCP encapsulated layer is network element device definition signaling point code, described signaling point code corresponds to IP address and port numbers, adopt the coded system that the whole network is unified, the encapsulation function of TCP realizes the network element device addressing in the whole network by described signaling point code; Described signaling adaptation layer is the application layer of TCP encapsulation, when source device cannot obtain Destination Point Code, be signaling point code by the Global Title translation of numbering unique for the whole network of equipment, then according to signaling point code, message mail to destination by the route preset.
Preferably, described TCP encapsulated layer message reception module is arranged to: when the TCP encapsulated layer of equipment receives the message of TCP layer, first judge whether the TCP Destination Point Code encapsulated in packet header equals the OPC Origination Point Code of current device, if be judged as equal, show that this message is this equipment message to be processed, then judge user type, message is issued signaling adaptation layer or operation layer process; If be judged as unequal, show that this message needs to forward, then utilize TCP encapsulated layer to carry out message transmission.
Whether preferably, described TCP encapsulated layer message transmission module is arranged to: according to described Destination Point Code, search and have corresponding TCP to connect, if had, then message is sent to searched link in pre-configured link set, Message routing success; If no, judge whether acquiescence link, if there is acquiescence link, message has been sent to acquiescence link, otherwise abandons.
Preferably, described signaling adaptation layer message reception module, be arranged to: after message being sent to the process of signaling adaptation layer, judge in signaling adaptation layer header, whether called subscriber's global title is present in pre-configured local global title list, if judge to exist, show that message is that current device need be to be processed, then this message is sent to application layer process; If judge not exist, show that these message needs are forwarded, then utilize signaling adaptation layer to carry out message transmission.
Preferably, described signaling adaptation layer message transmission module is arranged to: according to different global title types, query routing in different global title routing tables, this routing table is pre-configured according to global title planning, save the mapping relations of global title and Destination Point Code, if inquire corresponding mapping relations, then the Destination Point Code in TCP encapsulation header is changed into the Destination Point Code configured in routing table, and send message to TCP encapsulated layer, then TCP encapsulated layer is utilized to carry out message transmission, Message routing success; If do not inquire corresponding mapping relations, then send message by acquiescence link.
In sum, utilize the present invention, tradition single conference users basis increases a kind of special user, and this special user is exactly user's group, has a sets of numbers (dynamic reorganization number).System needs the corresponding function realizing group calling.Group needs to do special processing, if namely group is entered meeting, just receives the voice packet sent from meeting, the voice packet of meeting is sent to user in all groups.Further, group is sent to meeting from the voice packet that user in group receives and goes.Due to the setting of group, make restriction and the management of the user's communication attribute group in group, only have a user outwards can send voice packet as group user, avoid the uncontrolled communicating data amount caused of unique user excessive, and the spoken user in group also can adjust according to application.Therefore achieve and flexibly call property control is carried out to conference users.
Compared to prior art, communication network device method for routing of the present invention has the following advantages: when equipment communicates mutually, without the need to interconnected between two, also can be transferred by miscellaneous equipment, as long as have indirectly path, see Fig. 8 and Fig. 9 between the equipment in guarantee network is mutual.Equipment itself for transferring also can be service node.Because switching can be carried out according to global title or signaling point code, the operation layer of communication equipment is made also to have possessed routing capabilities, and routing policy that can be different according to different service implementations.The deployment of network is convenient, flexible, only needs to have planned the signaling point code of all devices and global title and pre-configured, just can ensure the intercommunication of whole network.When disposing, some alternate routings can be planned, and when primary route fault, be switched in alternate routing, the robustness of network can also be improved.
Embodiments of the invention can be embodied as hardware, firmware, software or its combination in any.Software is preferably embodied as application program, and be visibly implemented on program storage unit (PSU) or tangible computer computer-readable recording medium, it is made up of the combination of parts or some equipment and/or equipment.This application program can be uploaded to computer or the server of the architecture comprising any appropriate, and is performed by it.
Disclosed content is only the present invention's preferably embodiment above; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (15)
1. a communication network device method for routing, the method carries out route to network element device in based on the communication network of TCP/IP, it is characterized in that comprising the following steps:
Expansion ICP/IP protocol stack, increases TCP encapsulated layer and signaling adaptation layer between the transport layer and application layer of protocol stack;
Described TCP encapsulated layer is network element device definition signaling point code, and signaling point code corresponds to IP address and port numbers, and adopt the coded system that the whole network is unified, the encapsulation function of TCP realizes the network element device addressing in the whole network by described signaling point code;
Described signaling adaptation layer is the application layer of TCP encapsulation, when source device cannot obtain Destination Point Code, be signaling point code by the Global Title translation of numbering unique for the whole network of equipment, then according to signaling point code, message mail to destination by the route preset.
2. method according to claim 1, is characterized in that, when the TCP encapsulated layer of equipment receives the message of TCP layer, first judges whether the TCP Destination Point Code encapsulated in packet header equals the OPC Origination Point Code of current device,
If be judged as equal, show that this message is this equipment message to be processed, then judge user type, message is issued signaling adaptation layer or operation layer process;
If be judged as unequal, show that this message needs to forward, then utilize TCP encapsulated layer to carry out message transmission.
3. method according to claim 2, is characterized in that, the described TCP of utilization encapsulated layer carries out message transmission and specifically comprises:
According to described Destination Point Code, search in pre-configured link set and whether have corresponding TCP to connect,
If had, then message is sent to searched link, Message routing success;
If no, judge whether acquiescence link, if there is acquiescence link, message has been sent to acquiescence link, otherwise abandons.
4. method according to claim 3, it is characterized in that, the described acquiescence link that message is sent to specifically comprises: Signalling Transfer Point receives this message, if judge, Destination Point Code is not equal to local terminal signaling point code, then search TCP according to pre-configured link set to connect, when finding connection corresponding to signaling point code, then message is mail to this connection, Message routing success.
5. method according to claim 2, is characterized in that, described message is issued the process of signaling adaptation layer after, signaling adaptation layer receipt message, specifically comprises:
Judge in signaling adaptation layer header, whether called subscriber's global title is present in pre-configured local global title list,
If judge to exist, show that message is that current device need be to be processed, then this message is sent to application layer process;
If judge not exist, show that these message needs are forwarded, then utilize signaling adaptation layer to carry out message transmission.
6. method according to claim 5, is characterized in that, described utilize signaling adaptation layer carry out message send specifically comprise:
According to different global title types, query routing in different global title routing tables, this routing table is pre-configured according to global title planning, saves the mapping relations of global title and Destination Point Code,
If inquire corresponding mapping relations, then the Destination Point Code in TCP encapsulation header is changed into the Destination Point Code configured in routing table, and send message to TCP encapsulated layer, then utilize TCP encapsulated layer to carry out message transmission, Message routing success;
If do not inquire corresponding mapping relations, then send message by acquiescence link.
7. method according to claim 1, is characterized in that, adopts unified message structure form between each network element device, and described message structure comprises following five parts:
Tcp/ip header;
HEAD FLAG, represents the beginning of TCP encapsulated layer message;
TCP encapsulation header;
Application layer message; With
END FLAG, represents the end of TCP encapsulated message.
8. method according to claim 7, is characterized in that, the message of TCP encapsulated layer comprises:
HEAD FLAG；
TCP encapsulation header, comprises length, Destination Point Code, OPC Origination Point Code, user type, route counter;
Application layer message; With
END FLAG，
Wherein, TCP package module locates TCP encapsulated message by packet header of message, bag tail tag will and bag are long, and described user type indicates the classification of application layer, for the message distribution belonging to this node that will receive to corresponding application layer; Described route counter often subtracts 1 through a node, if 0 this bag will be dropped, occurs Routing loops for preventing TCP encapsulated layer user routing error.
9. method according to claim 1, is characterized in that, signaling adaptation layer message format comprises: protocols User represents language, destination address, source address, follow-up data length and application layer data;
Wherein said protocols User represents that pragmatic corresponds to the interface of different application scene in diffServ network, comprises described global title in destination address and source address, completes route in a network to make source device not need the signaling point code of acquisition object equipment.
10. method according to claim 1, is characterized in that, described global title comprises: equipment number, user ID, telephone number or its combination in any.
11. 1 kinds of communication network devices, this equipment is arranged in the communication network of TCP/IP, and carries out route by this network to other network element devices, it is characterized in that, this equipment comprises with lower module:
Expansion module, for expanding ICP/IP protocol stack, increases TCP encapsulated layer and signaling adaptation layer between the transport layer and application layer of protocol stack;
TCP encapsulated layer message reception module, for making the reception of TCP encapsulated layer from the message of TCP layer;
TCP encapsulated layer message transmission module, for being sent to destination signaling point by message;
Signaling adaptation layer message reception module, for making the reception of signaling adaptation layer from the message of TCP encapsulated layer; And
Signaling adaptation layer message transmission module, mails to object equipment for the route by presetting;
Wherein said TCP encapsulated layer is network element device definition signaling point code, described signaling point code corresponds to IP address and port numbers, adopt the coded system that the whole network is unified, the encapsulation function of TCP realizes the network element device addressing in the whole network by described signaling point code; Described signaling adaptation layer is the application layer of TCP encapsulation, when source device cannot obtain Destination Point Code, be signaling point code by the Global Title translation of numbering unique for the whole network of equipment, then according to signaling point code, message mail to destination by the route preset.
12. equipment according to claim 11, is characterized in that, described TCP encapsulated layer message reception module is arranged to:
When the TCP encapsulated layer of equipment receives the message of TCP layer, first judge whether the TCP Destination Point Code encapsulated in packet header equals the OPC Origination Point Code of current device,
If be judged as equal, show that this message is this equipment message to be processed, then judge user type, message is issued signaling adaptation layer or operation layer process;
If be judged as unequal, show that this message needs to forward, then utilize TCP encapsulated layer to carry out message transmission.
13. equipment according to claim 12, is characterized in that, described TCP encapsulated layer message transmission module is arranged to:
According to described Destination Point Code, search in pre-configured link set and whether have corresponding TCP to connect,
If had, then message is sent to searched link, Message routing success;
If no, judge whether acquiescence link, if there is acquiescence link, message has been sent to acquiescence link, otherwise abandons.
14. equipment according to claim 12, is characterized in that, described signaling adaptation layer message reception module, is arranged to:
After message being sent to the process of signaling adaptation layer, judge in signaling adaptation layer header, whether called subscriber's global title is present in pre-configured local global title list,
If judge to exist, show that message is that current device need be to be processed, then this message is sent to application layer process;
If judge not exist, show that these message needs are forwarded, then utilize signaling adaptation layer to carry out message transmission.
15. equipment according to claim 14, is characterized in that, described signaling adaptation layer message transmission module is arranged to:
According to different global title types, query routing in different global title routing tables, this routing table is pre-configured according to global title planning, saves the mapping relations of global title and Destination Point Code,
If inquire corresponding mapping relations, then the Destination Point Code in TCP encapsulation header is changed into the Destination Point Code configured in routing table, and send message to TCP encapsulated layer, then utilize TCP encapsulated layer to carry out message transmission, Message routing success;
If do not inquire corresponding mapping relations, then send message by acquiescence link.
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