CN101741676A - Method and device for converting user multi-service virtual local area network (VLAN) - Google Patents
Method and device for converting user multi-service virtual local area network (VLAN) Download PDFInfo
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Abstract
The invention discloses a method and a device for converting a user multi-service virtual local area network (VLAN). The method is realized based on an access device and comprises the following steps of: (a) allocating an uplink conversion table from a user original service VLAN to a real service VLAN, (b) extracting user information from a protocol message and dynamically creating a downlink conversion table from the real service VLAN to the original service VLAN, and (c) according to the uplink conversion table and the downlink conversion table, correspondingly converting the service VLAN of the protocol message or a data message. The method and the device can solve the one-to-many problem of downlink direction data flow.
Description
Technical field
The present invention relates to network communications technology, particularly a kind of method and apparatus of user multi-service Virtual Local Area Network conversion.
Background technology
At present, broadband access network moves to ethernet technology from the ATM(Asynchronous Transfer Mode) technology rapidly.The development of broadband technology progressively requires network architecture aspect to develop to the direction that merges multiple service supporting, and operator optimizes its Internet of transformation, so that the carrying multi-service.Along with carrying out of miscellaneous service, produced multiple network model in the practical application, more typical two kinds of networking modes are: polygon hoddy network and single edges network.Polygon hoddy network has identification of user's uniqueness and service sensing ability to user and business need, can realize traffic differentiation.And single edges network insertion business is all passed through same IAD processing.
Fig. 1 is user side list PVC or EFM (VDSL) the tagged mode multi-service networking model of describing among the TR101.Is single PVC or adopts in the group-network construction of EFM encapsulation at user side, by in the different business of tag identifier of utilizing 802.1Q between ustomer premises access equipment and the access node.This mode requires configuration trunk connection between access node and ustomer premises access equipment, and the vlan information that access node can be brought ustomer premises access equipment up converts different VLAN to.
After the VDSL2 technology is widely applied, this model will be the networking mode of main flow, because for the VDSL2 technology, the design of main flow is that user side uses the EFM encapsulation, it is the notion of single UNI PVC-free, multi-service this moment can't come differentiated service by the logic PVC tunnel in the atm technology again, and user side use VLAN tag is good selection as the expansion logical channel in this case.In the demand planning in TR101, also the demand assurance has been proposed for this networking mode.DSLAM is last will to realize the supported vlans conversion, and this provides assurance for using user side VLAN to distinguish as logical channel, and the Business Stream of up-downgoing can be according to being linked to aggregation networks on the normal service VLAN after by conversion.
By the typical service logic passage of this model dividing mode be: user side MODEM needs supported vlans tag, and the mapping of support Multi-netmouth and VLAN, after user side arrives DSLAM from the up tag data flow of different network interfaces, configuration VLAN conversion and member of vlan's table on DSLAM, realize of the VLAN conversion of the original service VLAN passage of user side by the VLAN conversion, and can be connected to aggregation networks with single VLAN tag or dual-VLAN tag mode to first line of a couplet actual services passage.Down direction VLAN translation function is carried out the conversion of actual services VLAN to the original service VLAN of user side, and sends to user side in the tagged mode.
We can see that different business stamps different VLANtag on MODEM in this model, be converted to different S-TAG after arriving DSLAM, form simple 1 pair 1 transformational relation between actual services VLAN and user side original vlan, do not describe for different business being transformed into identical S-TAG.And at present typical single edges network organizing (Fig. 2) has only the accessing gateway equipment of a first line of a couplet, so all service needed of the second line of a couplet use identical S-TAG, and at this moment just there is the VLAN transfer problem of one-to-many in the data flow of down direction.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of user multi-service VLAN conversion method and device, to solve the problem of down direction data flow one-to-many.
In order to address the above problem, the invention provides a kind of user multi-service VLAN conversion method, this method realizes based on access device, comprising:
(a) the original professional virtual LAN VLAN of configure user is to the up conversion table of actual services virtual LAN VLAN;
(b) user profile in the extraction protocol massages, dynamic creation actual services VLAN is to the down conversion table of original service VLAN;
(c) according to described up and down conversion table, with protocol massages or data message with service VLAN carry out corresponding conversion.
Further, described up conversion table and down conversion table comprise coupling list item and matching operation, in the described up conversion table, described coupling list item is the original service VLAN of user, and described matching operation is for to be converted to actual services VLAN with the original service VLAN of user; In the described down conversion table, described coupling list item is real service VLAN and user profile, and matching operation is for to be converted to the original service VLAN of user with real service VLAN; In the step (c), when the service VLAN of message is changed, search the corresponding coupling list item of corresponding conversion table earlier, carry out the service VLAN conversion according to the matching operation of correspondence again.
Further, protocol massages is the SIP message described in the step (b), and step (c) also comprises according to the conversation end protocol massages and removes the down conversion table afterwards.
Further, for the DHCP mode, the SIP message refers to: the message of first arrival among DISCOVER, REQUEST or the INFORM; The conversation end protocol massages refers to RELEASE, NAK or DECLINE message; For the PPPOE mode, the SIP message refers to: the message of first arrival among PADI or the PADR; The conversation end protocol massages refers to the PADT message.
Further, described user profile is user's MAC address, User IP or user port.
For solving the problems of the technologies described above, the present invention also provides a kind of user multi-service VLAN conversion equipment, and this device is realized based on access device, and comprise Configuration Manager, monitor module and traffic classification administration module, wherein,
Configuration Manager is used for the up conversion table of the original professional virtual LAN VLAN of configure user to the actual services virtual LAN VLAN, and up conversion table is set to the traffic classification administration module;
Monitor the user profile that module is used for extracting protocol massages, dynamic creation actual services VLAN is set to the traffic classification administration module to the down conversion table of original service VLAN and with the down conversion table;
The traffic classification administration module is used to receive Configuration Manager and monitors the conversion table that module sends, and according to described up and down conversion table, with protocol massages or data message with service VLAN carry out corresponding conversion.
Further, described up conversion table and down conversion table comprise coupling list item and matching operation, in the described up conversion table, described coupling list item is the original service VLAN of user, and described matching operation is for to be converted to actual services VLAN with the original service VLAN of user; In the described down conversion table, described coupling list item is real service VLAN and user profile, and matching operation is for to be converted to the original service VLAN of user with real service VLAN; Described traffic classification administration module when the service VLAN of message is changed, is searched the corresponding coupling list item of corresponding conversion table earlier, carries out the service VLAN conversion according to the matching operation of correspondence again.
Further, this device also comprises the protocol massages filtering module, and described protocol massages filtering module is used for the protocol massages according to heading intercepting DHCP/PPPOE, and with the protocol massages of intercepting and send to the monitoring module.
Further, described monitoring module begins to extract user profile the protocol massages from session, and described user profile refers to user's MAC address, User IP or user port, and described monitoring module also is used for removing the down conversion table according to the conversation end protocol massages.
Further, for the DHCP mode, the SIP message refers to: the message of first arrival among DISCOVER, REQUEST or the INFORM; The conversation end protocol massages refers to RELEASE, NAK or DECLINE message; For the PPPOE mode, the SIP message refers to: the message of first arrival among PADI or the PADR; The conversation end protocol massages refers to the PADT message.
User multi-service VLAN conversion method of the present invention and device obtain user profile by the monitoring module and create the down conversion table, and realize of the conversion of user multi-service VLAN to the actual services VLAN according to up conversion table and down conversion table that static state is provided with, thereby solve the problem of down direction data flow one-to-many, satisfied the VLAN processing demands of present single edges network, strengthened the disposal ability of access device access device.
Description of drawings
Fig. 1 is user side list PVC or EFM (VDSL) tagged mode multi-service networking model schematic diagram.
Fig. 2 is a single edges network organizing model schematic diagram.
Fig. 3 is a user multi-service VLAN conversion equipment schematic diagram of the present invention.
Fig. 4 is a user multi-service VLAN conversion method schematic flow sheet of the present invention.
Fig. 5 is that the inventive method is to DISCOVER, the REQUEST of DHCP and the handling process schematic diagram of INFORM message.
Fig. 6 is that the inventive method is to the OFFER of DHCP and the handling process schematic diagram of ACK message.
Fig. 7 is RELEASE, NAK and the DECLINE message handling process schematic diagram of the inventive method to DHCP.
Fig. 8 is that the inventive method is to the PADI of PPPOE and the handling process schematic diagram of PADR message.
Fig. 9 is that the inventive method is to the PADS of PPPOE and the handling process schematic diagram of PADO message.
Figure 10 is the handling process schematic diagram of the inventive method to the PADT message of PPPOE.
Embodiment
The main thought of the inventive method and device is in conjunction with the up conversion table of static configuration and the user profile Dynamic Maintenance down conversion table in the protocol massages, according to the conversion between up and down conversion table realization original VLAN of user multi-service and the actual and virtual local area network (LAN), thus the one-to-many problem of solution down direction data flow.
It is exchcange core that access device of the present invention adopts Ethernet, and is operated in two layers of forward mode.On access device DHCP and PPPOE message are monitored, obtain the user profile in the message, the conversion table in conjunction with configuration is provided with the traffic classification list item.After the foundation of finishing the conversion mapping table, the exchanges data of back is directly transmitted by two layers of exchange.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme.
As shown in Figure 3, user multi-service Virtual Local Area Network conversion equipment of the present invention is realized at access device, comprising: configuration module, receiver module, traffic classification administration module, protocol massages filtering module, monitoring module and forwarding module, wherein,
Configuration module is used for the up conversion table of the original service VLAN of static configuration user to actual services VLAN, and is set to the traffic classification administration module, and this up conversion table is set to the VLAN conversion process that is used for upstream in the traffic classification table;
Receiver module is used to receive all protocol massages and data message, and is transmitted to the traffic classification processing module;
The traffic classification administration module, be used to accept configuration module and monitor the conversion table that module sends over, and according to described up and down conversion table, with protocol massages or data message with service VLAN carry out corresponding conversion, also be used for message is transmitted to the protocol massages filtering module;
The protocol massages filtering module is used for the protocol massages according to heading intercepting DHCP/PPPOE, and with the protocol massages of intercepting and deliver to the monitoring module, data message is sent to forwarding module transmit;
Monitor module, be used to resolve DHCP and PPPOE protocol massages, extract user profile and set up and remove the down conversion table and the down conversion table is set to the traffic classification administration module, and the protocol massages that does not carry out conversion process is as yet carried out conversion process;
Described monitoring module is created the down conversion table according to the initiation protocol message, eliminates the down conversion table according to the protocol finishes message.
For the DHCP mode, the SIP message refers to: the message of first arrival among DISCOVER, REQUEST or the INFORM; The conversation end protocol massages refers to RELEASE, NAK or DECLINE message.
For the PPPOE mode, the SIP message refers to: the message of first arrival among PADI or the PADR; The conversation end protocol massages refers to the PADT message.
Described up conversion table and down conversion table comprise coupling list item and matching operation, and in the described up conversion table, described coupling list item is the original service VLAN of user, and described matching operation is for to be converted to actual services VLAN with the original service VLAN of user; In the described down conversion table, described coupling list item is real service VLAN and user profile, and matching operation is for to be converted to the original service VLAN of user with real service VLAN; Described traffic classification administration module when the service VLAN of message is changed, is searched the corresponding coupling list item of corresponding conversion table earlier, carries out the service VLAN conversion according to the matching operation of correspondence again.
Forwarding module is used for the traffic classification administration module and the message after monitoring resume module is transmitted.
As shown in Figure 4, customer service VLAN conversion method of the present invention may further comprise the steps:
Step 401: configure user multi-service original vlan is to the up conversion table of actual services VLAN;
Up conversion table content is: the original service VLAN of user is to the corresponding relation of actual services VLAN.Up conversion table can be finished in configuration module by the manmachine command mode, specifies user multi-service original vlan and actual services VLAN in configuration order, and the user multi-service original vlan here is a range section usually.After configuration was finished, up conversion table comprised coupling list item and matching operation, and Configuration Manager is set to this conversion table in the traffic classification table of upstream classification of traffic classification administration module, is used for the VLAN conversion of uplink data messages.
Step 402: extract the user profile in the protocol massages, dynamic creation actual services VLAN is to the down conversion table of original service VLAN;
The down conversion table that the user profile that dynamic foundation is carried by message is formed, divide two aspects: the one, extract any user profile, the 2nd, how to extract.For extracting what user profile, the present invention is that example describes to extract user's MAC address, in fact as long as the traffic classification table can be supported more multilist item and matching operation, can also extract information such as User IP, user port.For how to extract, different access waies need be carried out different processing operations.Two kinds of the most frequently used access waies are PPPOE and DHCP at present, the message here comprises DHCP and PPPOE protocol massages, for DHCP and PPPOE protocol massages, when extracting user profile, distinguish to some extent, as user's MAC address, comprised user's MAC address in the DHCP protocol header of DHCP message, so from the DHCP protocol header, obtain for DHCP message user's MAC address.And PPPOE can only obtain from the Ethernet message head, but will note the up-downlink direction difference, and user's MAC address position difference during up direction, is the source MAC in the Ethernet message head, during down direction, is the target MAC (Media Access Control) address in the Ethernet message head.
In the described down conversion table, described coupling list item is real service VLAN and user profile, and matching operation is for to be converted to the original service VLAN of user with real service VLAN.The down conversion table that the monitoring module will be obtained the user profile generation is set in the downstream classification chart of traffic classification administration module, is used for the VLAN conversion of downlink data message.
Telex network is dynamically removed the down conversion table after finishing.
Step 403: according to the conversion mapping table, judge whether the literary composition of receiving telegraph needs to carry out conversion process, conversion if desired, then execution in step 404, otherwise do not carry out conversion process;
Said conversion mapping table is up conversion table and down conversion table.
Step 404: with message with service VLAN carry out conversion process according to conversion table, carry out corresponding forwarding then;
Concrete conversion process is divided into up direction and down direction: at up direction, described coupling list item is the original service VLAN of user, and being operating as of coupling is converted to actual services VLAN with the original service VLAN of user; At down direction, described coupling list item is real service VLAN and user's a MAC Address, and being operating as of coupling is converted to the original service VLAN of user with real service VLAN.
Below in conjunction with Fig. 5 to Fig. 7, under the DHCP access way, the foundation and the sweep-out method of down conversion table are elaborated:
When Fig. 5 is the DHCP access way, monitor DISCOVER, REQUEST and the INFORM message process chart of module to DHCP, its processing procedure comprises the steps:
Step 501: receive DISCOVER, REQUEST or the INFORM message of DHCP, extract customer service VLAN and user's MAC address in the message;
The user's MAC address here is the user's MAC address in the DHCP head.
DISCOVER, REQUEST and INFORM message all are the up direction messages, normally dynamically set up conversion table by first DISCOVER message that reaches, after setting up successfully, the VLAN of follow-up message is exactly the actual services VLAN after the conversion, directly transmits to get final product.
Step 502: check whether this customer service VLAN exists the down conversion list item of coupling,, illustrate that this service VLAN is through the actual services VLAN after the conversion of traffic classification administration module, directly execution in step 505 if exist; If there is no enter step 503;
Step 503: dynamically add a descending traffic classification list item, the coupling list item is user's MAC address and actual services VLAN, the operation of coupling is to be this user MAC with descending purpose MAC, and VLAN is that the VLAN of the message of actual services VLAN is converted to the original service VLAN of user;
Step 504: the original service VLAN of user is transformed into actual services VLAN;
Step 505: this message is sent to corresponding first line of a couplet port.
When Fig. 6 is the DHCP access way, monitor OFFER and the ACK message handling process flow process figure of module to DHCP, its processing procedure comprises the steps:
Step 601: receive OFFER and the ACK message of DHCP, extract customer service VLAN and user's MAC address in the message;
OFFER and ACK message all are the down direction messages, and the user's MAC address here is the user's MAC address in the DHCP head, and the customer service VLAN here is actual services VLAN.
Step 602: check whether this customer service VLAN exists coupling down conversion list item, if there is no, illustrate that this service VLAN is through the user's original vlan after the conversion of traffic classification administration module, does not carry out any processing, directly execution in step 604; Enter step 603 if exist;
Step 603: the actual services VLAN of message is converted to the original service VLAN of user;
Step 604: this message is sent to user port.
When Fig. 7 is the DHCP access way, monitor RELEASE, NAK and the DECLINE message handling process flow process figure of module to DHCP, its processing procedure comprises the steps:
Step 701: receive RELEASE, NAK and the DECLINE message of DHCP, extract customer service VLAN and user's MAC address in the message;
The user's MAC address here is the user's MAC address in the DHCP head, and the customer service VLAN here is actual services VLAN.
Step 702: check whether this customer service VLAN exists coupling down conversion list item, if there is no, shows and finishes conversion process by the traffic classification administration module, does not carry out any processing, directly execution in step 705; If exist, enter step 703;
Step 703: remove the down conversion list item of dynamically setting up;
Step 704: the service VLAN of message is changed;
Step 705: this message is sent to the corresponding port.
Among the present invention RELEASE, NAK and DECLINE message are called the conversation end protocol massages.
Below in conjunction with Fig. 8 to Figure 10, under the PPPOE access way, the foundation or the removing method of down conversion table are elaborated:
When Fig. 8 is the PPPOE access way, implement PADI and the PADR message process chart of the PPPOE of realization VLAN conversion, its processing procedure further comprises the steps:
Step 801: receive that first arrives message among the PADI of PPPOE and the PADR, extract user's MAC address in original service VLAN of user in the message and the Ethernet header;
PADI and PADR message all are the up direction messages, for these two kinds of messages, normally dynamically set up conversion table by the PADI message that first reaches, set up successfully after, the VLAN of follow-up message is exactly the actual services VLAN after the conversion of traffic classification administration module, directly transmits to get final product.
Step 802: check whether this customer service VLAN exists the down conversion list item of coupling, if exist, illustrate that this service VLAN is through the actual services VLAN after the traffic classification conversion, shows and finishes conversion process by the traffic classification administration module, do not carry out any processing, directly execution in step 805; If there is no enter step 803;
Step 803: dynamically add a descending traffic classification list item, the coupling list item is user's MAC address and actual services VLAN, the operation of coupling is to be this user MAC with descending purpose MAC, and VLAN is that the VLAN of the message of actual services VLAN is converted to the original service VLAN of user;
Step 804: carry out of the conversion of the original service VLAN of user to actual services VLAN;
Step 805: and this message is sent to corresponding first line of a couplet port.
When Fig. 9 is the PPPOE access way, monitor PADS and the PADO message handling process flow process figure of module to PPPOE, its processing procedure comprises the steps:
Step 901: receive PADS and the PADO message of PPPOE, extract customer service VLAN and user's MAC address in the message;
PADS and PADO message all are the down direction messages, and the customer service VLAN here is actual services VLAN.
Step 902: check whether this customer service VLAN exists coupling down conversion list item, if there is no, shows and finishes conversion process by the traffic classification administration module, does not carry out any processing, directly execution in step 904; Enter step 903 if exist;
Step 903: the actual services VLAN of message is converted to the original service VLAN of user;
Step 904: this message is sent to user port.
When Figure 10 is the PPPOE access way, monitor the PADT message handling process flow process figure of module to PPPOE, its processing procedure comprises the steps:
Step 101: receive the PADT message of PPPOE, extract customer service VLAN and user's MAC address in the message;
The customer service VLAN here is actual services VLAN;
Step 102: check whether this customer service VLAN exists coupling down conversion list item, if there is no, shows and finishes conversion process by the traffic classification administration module, does not carry out any processing, directly execution in step 105; Enter step 103 if exist;
Step 103: remove the down conversion list item of dynamically setting up;
Step 104: the service VLAN of message is changed;
Step 105: this message is sent to the corresponding port.
Here it is different with DHCP to it should be noted that PPPOE finishes, and user and server all may be initiated ending request.
In the embodiment of above method and apparatus, traffic classification administration module and monitoring module all have the function of conversion process, also need protocol massages is monitored to set up or to eliminate transformation table entries and monitor module.The conversion process function of monitoring module and traffic classification administration module can be divided according to type of message, it is as follows to change apparatus of the present invention: all messages that receiver module receives are transferred to the protocol massages filtering module, by the protocol massages filtering module protocol massages is transferred to the monitoring module and monitor and conversion process, data message is transferred to the traffic classification administration module carry out conversion process.
Certainly, can convection current Classification Management module and monitor module and carry out clear and definite function and divide, can be on the basis of above change, make and monitor module and only have the function of setting up or removing the down conversion table, and the message after will monitoring is transmitted to the traffic classification administration module and carries out conversion process.
In sum, user multi-service VLAN conversion method of the present invention and device obtain user profile by the monitoring module and create the down conversion table, and realize of the conversion of user multi-service VLAN to the actual services VLAN according to up conversion table and down conversion table that static state is provided with, thereby solve the problem of down direction data flow one-to-many, satisfied the VLAN processing demands of present single edges network, strengthened the disposal ability of access device access device.
Claims (10)
1. user multi-service VLAN conversion method is characterized in that this method realizes based on access device, comprising:
(a) the original professional virtual LAN VLAN of configure user is to the up conversion table of actual services virtual LAN VLAN;
(b) user profile in the extraction protocol massages, dynamic creation actual services VLAN is to the down conversion table of original service VLAN;
(c) according to described up and down conversion table, with protocol massages or data message with service VLAN carry out corresponding conversion.
2. the method for claim 1, it is characterized in that: described up conversion table and down conversion table comprise coupling list item and matching operation, in the described up conversion table, described coupling list item is the original service VLAN of user, and described matching operation is for to be converted to actual services VLAN with the original service VLAN of user; In the described down conversion table, described coupling list item is real service VLAN and user profile, and matching operation is for to be converted to the original service VLAN of user with real service VLAN; In the step (c), when the service VLAN of message is changed, search the corresponding coupling list item of corresponding conversion table earlier, carry out the service VLAN conversion according to the matching operation of correspondence again.
3. as each described method in the claim 1, it is characterized in that: protocol massages is the SIP message described in the step (b), and step (c) also comprises according to the conversation end protocol massages and removes the down conversion table afterwards.
4. method as claimed in claim 3 is characterized in that: for the DHCP mode, the SIP message refers to: the message of first arrival among DISCOVER, REQUEST or the INFORM; The conversation end protocol massages refers to RELEASE, NAK or DECLINE message; For the PPPOE mode, the SIP message refers to: the message of first arrival among PADI or the PADR; The conversation end protocol massages refers to the PADT message.
5. the method for claim 1, it is characterized in that: described user profile is user's MAC address, User IP or user port.
6. a user multi-service VLAN conversion equipment is characterized in that, this device is realized based on access device, comprise Configuration Manager, monitor module and traffic classification administration module, wherein,
Configuration Manager is used for the up conversion table of the original professional virtual LAN VLAN of configure user to the actual services virtual LAN VLAN, and up conversion table is set to the traffic classification administration module;
Monitor the user profile that module is used for extracting protocol massages, dynamic creation actual services VLAN is set to the traffic classification administration module to the down conversion table of original service VLAN and with the down conversion table;
The traffic classification administration module is used to receive Configuration Manager and monitors the conversion table that module sends, and according to described up and down conversion table, with protocol massages or data message with service VLAN carry out corresponding conversion.
7. device as claimed in claim 6, it is characterized in that: described up conversion table and down conversion table comprise coupling list item and matching operation, in the described up conversion table, described coupling list item is the original service VLAN of user, and described matching operation is for to be converted to actual services VLAN with the original service VLAN of user; In the described down conversion table, described coupling list item is real service VLAN and user profile, and matching operation is for to be converted to the original service VLAN of user with real service VLAN; Described traffic classification administration module when the service VLAN of message is changed, is searched the corresponding coupling list item of corresponding conversion table earlier, carries out the service VLAN conversion according to the matching operation of correspondence again.
8. device as claimed in claim 6 is characterized in that: this device also comprises the protocol massages filtering module, and described protocol massages filtering module is used for the protocol massages according to heading intercepting DHCP/PPPOE, and with the protocol massages of intercepting and send to the monitoring module.
9. device as claimed in claim 6, it is characterized in that, described monitoring module begins to extract the protocol massages user profile from session, described user profile refers to user's MAC address, User IP or user port, and described monitoring module also is used for removing the down conversion table according to the conversation end protocol massages.
10. method as claimed in claim 9 is characterized in that: for the DHCP mode, the SIP message refers to: the message of first arrival among DISCOVER, REQUEST or the INFORM; The conversation end protocol massages refers to RELEASE, NAK or DECLINE message; For the PPPOE mode, the SIP message refers to: the message of first arrival among PADI or the PADR; The conversation end protocol massages refers to the PADT message.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103812707A (en) * | 2014-02-28 | 2014-05-21 | 上海斐讯数据通信技术有限公司 | Forwarding processing method of line identity messages |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812707A (en) * | 2014-02-28 | 2014-05-21 | 上海斐讯数据通信技术有限公司 | Forwarding processing method of line identity messages |
| CN103812707B (en) * | 2014-02-28 | 2019-07-16 | 上海斐讯数据通信技术有限公司 | A kind of method for processing forwarding of line identification message |
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