CN102238091B - A kind of file transmitting method and access controller - Google Patents
A kind of file transmitting method and access controller Download PDFInfo
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- CN102238091B CN102238091B CN201110207348.4A CN201110207348A CN102238091B CN 102238091 B CN102238091 B CN 102238091B CN 201110207348 A CN201110207348 A CN 201110207348A CN 102238091 B CN102238091 B CN 102238091B
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- access point
- address
- interface
- access
- controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
Abstract
The present invention provides method and the access controller that a kind of message sends, and the method includes：Set up the address information of access point and the corresponding relation of the interface of access point access access controller；When the access controller accesses described access point, if the access controller find access the access point outgoing interface be default virtual interface, the interface that the access point accesses access controller is searched according to next-hop ip address and the corresponding relation then, wherein, the IP address of the virtual interface belongs to the same network segment with the IP address of described access point；The packet is sent to described access point by encapsulated data packet, the interface for accessing the access controller by described access point.IP address resource in access network can be saved by the present invention.
Description
Technical field
A kind of the present invention relates to communications field, more particularly to method and the access controller of message transmission.
Background technology
In access network, by substantial amounts of application, this networking mode is to be accessed to control by one to the network topology structure of star
Device processed is concurrently accessed multiple access points, refers to Fig. 1.Different interface on access controller, the interface 1, interface 2 in such as Fig. 1
The IP address of different segment must be configured to interface n, and so each access point is required for taking a network segment, and IP1 to IPn is adhered to separately
In different segment.As a minimum network segment must also have 4 IP address, such n access point to need to take 4*n IP ground
Location.As increasing for access point, the consumption of IP address are serious, the number of routes of access controller also can increase therewith, so increase
The complexity of the network planning and management is added.
When IP address lazy weight is run into, at present methods that takes are using without numbering IP technology, i.e. IP more
UNNUMBERED.Access controller side interface 1, interface 2 do not configure IP address to interface n, but configuration of IP UNNUMBERED belongs to
Property, while the static routing of is configured for each access point, directly specify corresponding interface as the outgoing interface of static routing.
There is very big restrictive condition without numbering IP technology, this technology is only applied to point-to-point interface, cannot use during Ethernet access.Separately
The static routing of a large amount of directly specified outgoing interfaces will be configured on external access controller, and management and maintenance cost are higher.
Also there are a kind of technology for saving IP address, VLAN (Virtual Local Area Network, void over ethernet
Intend LAN) polymerization is SUPERVLAN.Physical interface is divided on access controller the logic interfacing of ownership difference VLAN,
Vlan sub-interface, one or more vlan sub-interface can be aggregated to one new logic of formation together to these logic interfacings
Interface, i.e. SUPERVLAN mouths.Each access point and SUPERVLAN mouths plan an IP address, and are all divided in same
The network segment.This Technical comparing is suitable for accessing multiple access points under same interface, needs to plan the VLAN of network, including
Access controller, access point and double layer network between the two, so also considerably increase the complexity of the network planning and management
Degree.
Content of the invention
The technical problem to be solved in the present invention is to provide method and the access controller that a kind of message sends, to save access
IP address resource in net.
In order to solve above-mentioned technical problem, the invention provides a kind of file transmitting method, including：
Set up the address information of access point and the corresponding relation of the interface of access point access access controller；
When the access controller accesses described access point, if the access controller finds accesses the access point
Outgoing interface is default virtual interface, then search the access point according to next-hop ip address and the corresponding relation and access control
The interface of device processed, wherein, the IP address of the virtual interface belongs to the same network segment with the IP address of described access point；
The packet is sent to institute by encapsulated data packet, the interface for accessing the access controller by described access point
State access point.
Further, said method also has following feature：The address information for setting up access point is connect with the access point
Enter the corresponding relation of the interface of access controller, including：
The access controller is with enabling the medium education (MAC) of address analysis protocol proxy study described access point
Location information；
Set up the IP address of described access point, the MAC Address of described access point and the access point and access the Access Control
The corresponding relation of the interface of device.
Further, said method also has following feature：Connecing for the access controller is accessed by described access point
The packet is sent to described access point by mouth, including：
Target MAC (Media Access Control) address and source MAC according to the Ethernet frame head of the corresponding relation encapsulated message；
The message is sent to described access point by the interface for accessing the access controller by described access point.
Further, said method also has following feature：The address information for setting up access point is connect with the access point
Enter the corresponding relation of the interface of access controller, including：
The access controller consults the IP address of study described access point by the IP control protocol of peer-peer protocol；
Set up the IP address of described access point and the corresponding relation of the interface of access point access access controller.
Further, said method also has following feature：Connecing for the access controller is accessed by described access point
The packet is sent to described access point by mouth, including：
The peer-peer protocol frame originating point information of encapsulated message；
The message is sent to described access point by the interface for accessing the access controller by described access point.
Further, said method also has following feature：The address information for setting up access point is connect with the access point
Enter the corresponding relation of the interface of access controller, including：
The access controller enables asynchronous transfer mode address analysis protocol proxy, learns the asynchronous biography of described access point
Defeated mode address；
Set up the IP address of described access point, the asynchronous transmission address of described access point and the access point and access the access
The corresponding relation of the interface of controller.
Further, said method also has following feature：Connecing for the access controller is accessed by described access point
The packet is sent to described access point by mouth, including：
The interface letter that VPI, VCI and the virtual connections that virtual connections are obtained according to the corresponding relation are located
The IP messages for being sent to described access point are converted to ATM cell by breath；
The ATM cell is sent to institute by the interface for accessing the access controller by described access point
State access point.
For solving the above problems, present invention also offers a kind of access controller, including：
Module is set up, for the address information of access point being set up with the interface of access point access access controller
Corresponding relation；
Searching modul, for when the access controller accesses described access point, accessing the access point finding
In the case that outgoing interface is default virtual interface, the access point is searched according to next-hop ip address and the corresponding relation and is accessed
The interface of access controller, wherein, the IP address of the virtual interface belongs to the same network segment with the IP address of described access point；
Sending module, for encapsulated data packet, the interface for accessing the access controller by described access point will be described
Packet is sent to described access point.
Further, above-mentioned access controller also has following feature：
The module of setting up includes：
Unit, learns the MAC Address of described access point for enabling address analysis protocol proxy；
Unit is set up, is accessed for setting up the IP address of described access point, the MAC Address of described access point and the access point
The corresponding relation of the interface of the access controller；
The sending module, including：
Encapsulation unit, for the target MAC (Media Access Control) address and source MAC of the Ethernet frame head according to the corresponding relation encapsulated message
Address；
The message is sent to institute for accessing the interface of the access controller by described access point by transmitting element
State access point.
Further, above-mentioned access controller also has following feature：
The module of setting up includes：
Unit, for consulting the IP address of study described access point by the IP control protocol of peer-peer protocol；
Unit is set up, and the interface of the access controller is accessed for setting up the IP address of described access point and the access point
Corresponding relation.
The sending module, including：
Encapsulation unit, for the peer-peer protocol frame originating point information of encapsulated message；
The message is sent to institute for accessing the interface of the access controller by described access point by transmitting element
State access point.
Further, above-mentioned access controller also has following feature：
The module of setting up includes：
Unit, learns the asynchronous transmission of described access point for enabling asynchronous transfer mode address analysis protocol proxy
Address；
Unit is set up, for setting up the IP address of described access point, the asynchronous transmission address of described access point and the access
Point accesses the corresponding relation of the interface of the access controller；
The sending module, including：
Encapsulation unit, for obtaining the VPI of virtual connections, VCI according to the corresponding relation and virtually connecting
The interface message at place is connect, the IP messages for being sent to described access point are converted to ATM cell；
Transmitting element, for accessing the interface of the access controller by the asynchronous transfer mode by described access point
Cell is sent to described access point.
To sum up, the present invention provides method and the access controller that a kind of message sends, and can save IP address in access network
Resource.
Description of the drawings
Fig. 1 is the schematic diagram of traditional access way；
Schematic diagrams of the Fig. 2 for the access controller of the embodiment of the present invention；
Flow charts of the Fig. 3 for the file transmitting method of the embodiment of the present invention；
Schematic diagrams of the Fig. 4 for the access way of the embodiment of the present invention.
Specific embodiment
For making the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutual combination in any.
For a better understanding of the present invention, the present invention is further described with specific embodiment below in conjunction with the accompanying drawings.
Schematic diagrams of the Fig. 2 for the access controller of the embodiment of the present invention, as shown in Fig. 2 the access controller of the present embodiment
Including：
Module is set up, for the address information of access point being set up with the interface of access point access access controller
Corresponding relation；
Searching modul, for when the access controller accesses described access point, accessing the access point finding
In the case that outgoing interface is default virtual interface, the access point is searched according to next-hop ip address and the corresponding relation and is accessed
The interface of access controller, wherein, the IP address of the virtual interface belongs to the same network segment with the IP address of described access point；
Sending module, for encapsulated data packet, the interface for accessing the access controller by described access point will be described
Packet is sent to described access point.
In a preferred embodiment, the module of setting up includes：
Unit, learns the MAC Address of described access point for enabling address analysis protocol proxy；
Unit is set up, is accessed for setting up the IP address of described access point, the MAC Address of described access point and the access point
The corresponding relation of the interface of the access controller；
The sending module, including：
Encapsulation unit, for the target MAC (Media Access Control) address and source MAC of the Ethernet frame head according to the corresponding relation encapsulated message
Address；
The message is sent to institute for accessing the interface of the access controller by described access point by transmitting element
State access point.
In a preferred embodiment, the module of setting up includes：
Unit, for consulting the IP address of study described access point by the IP control protocol of peer-peer protocol；
Unit is set up, and the interface of the access controller is accessed for setting up the IP address of described access point and the access point
Corresponding relation.
The sending module, including：
Encapsulation unit, for the peer-peer protocol frame originating point information of encapsulated message；
The message is sent to institute for accessing the interface of the access controller by described access point by transmitting element
State access point.
In a preferred embodiment, the module of setting up includes：
Unit, learns the asynchronous transmission of described access point for enabling asynchronous transfer mode address analysis protocol proxy
Address；
Unit is set up, for setting up the IP address of described access point, the asynchronous transmission address of described access point and the access
Point accesses the corresponding relation of the interface of the access controller；
The sending module, including：
Encapsulation unit, for obtaining the VPI of virtual connections, VCI according to the corresponding relation and virtually connecting
The interface message at place is connect, the IP messages for being sent to described access point are converted to ATM cell；
Transmitting element, for accessing the interface of the access controller by the asynchronous transfer mode by described access point
Cell is sent to described access point.
Flow charts of the Fig. 3 for the file transmitting method of the embodiment of the present invention, as shown in figure 3, the method for the present embodiment includes：
S10, the address information for setting up access point and the access point access the corresponding relation of the interface of access controller；
S20, the access controller access described access point when, if the access controller find access the access
The outgoing interface of point is default virtual interface, then search the access point according to next-hop ip address and the corresponding relation and connect
Enter the interface of controller, wherein, the IP address of the virtual interface belongs to the same network segment with the IP address of described access point；
The packet is sent by S30, encapsulated data packet, the interface for accessing the access controller by described access point
Give described access point.
The method that the message of the present embodiment sends, it is adaptable to various access ways, for example, Ethernet access mode, PPP
(IP over ATM, in asynchronous transfer mode for (Point-to-Point Protocol, peer-peer protocol) access way and IPoA
IP is carried on network) access way etc. is all suitable for, and the number of routes that can be greatly reduced on access controller reduces network rule
The complexity that draws and manage.
The embodiment of the present invention is applied to various access networks, can be used widely in 3G access networks.Below with WCDMA
As a example by the access network of (Wideband Code Division Multiple Access, WCDMA), if connect in Fig. 4
Access point be base station (Node B), access controller be RNC (radio network controller), specific embodiment is as follows：
First, can plan same in each Node B configuration of IP (Internet Protocol) address, these IP address
In the network segment.RNC fictionalizes an interface, is that the IP address of the virtual interface configuration belongs to same net with the IP address of Node B
In section, and each Node B accesses the actual interface of RNC without configuring IP address.
The message transmissions of the present invention are described in detail with three kinds of access ways below.
Embodiment one, Ethernet access mode：
The access interface of RNC sides needs to enable ARP (address resolution protocol) agencies, for acting on behalf of RNC virtual interfaces IP ground
MAC (Media Access Control, the medium education) address of location.
When the MAC Address of Node B Active Learning RNC, Node B send ARP request to RNC.The access interface of RNC sides
After receiving ARP request, find to enable ARP proxy, then the MAC responses of this interface are given Node B by agent service IP responses,
Also the MAC Address for recording the Node B simultaneously and the corresponding relation for accessing the interface of RNC accordingly.Node B receive ARP
After response, the MAC of RNC has been arrived in also study.
When the MAC Address of RNC Active Learning Node B, RNC sends ARP request to Node B.From enabling ARP proxy
When interface sends ARP request, source MAC should extend this as the MAC Address of this interface.After Node B receive ARP request, will
The MAC Address response of oneself is to RNC, while recording the MAC Address of RNC.After RNC receives arp reply, also study is arrived
The MAC Address of Node B and the accordingly interface of access RNC.
After the interface study of MAC Address and accordingly access RNC is arrived, you can set up IP address and the Node B of Node B
MAC Address and RNC sides access interface corresponding relation, or the IP address of the good Node B of manual configuration and Node B
After the corresponding relation of the access interface of MAC Address and RNC sides, the transmitting-receiving of message can be carried out.
For downlink message, RNC when message is sent, first searches routing table and obtains outgoing interface, if outgoing interface is default
Virtual interface, then searches ARP table according to next-hop ip address, obtains the MAC and corresponding access interface of Node B, packaged
After the ethernet frame headers such as purpose MAC, source MAC, you can be successfully transmitted away from corresponding access interface.Node B are received
To after message, without special character, normal process.
For uplink message, Node B when message is sent, first search routing table and obtain actual outgoing interface, then look up
ARP table, can be from outgoing interface success after obtaining the ethernet frame headers such as the MAC of RNC, packaged purpose MAC of message, source MAC
Send, this transmission process is identical with flow process when not using the present invention.After RNC receives message, there is no spy yet
Different part, normal process.
Embodiment two, PPP access ways：
IPCP (IP control associations of the RNC and Node B in PPP (Point-to-Point Protocol, peer-peer protocol)
View) when consulting, no matter the IP address of NodeB is manual configuration, or the distribution automatically of RNC sides, RNC sides can be recorded
By the IP of ipcp negotiation study to Node B, thus establish between the IP of Node B and the corresponding interface for accessing RNC
Corresponding relation.Either so corresponding relation, or manual configuration corresponding relation are arrived in study automatically, as long as there is this correspondingly to close
After system, the transmitting-receiving of message can be carried out.
For downlink message, RNC when message is sent, first searches routing table and obtains outgoing interface, and outgoing interface is default
Virtual interface.The corresponding relation between the IP of Node B and the corresponding interface for accessing RNC is then looked up, obtains connecing accordingly
Mouthful, after the PPP frame originating point informations of packaged message, you can be successfully transmitted away from corresponding access interface.Node B are received
After message, without special character, normal process.
For uplink message, Node B search routing table when message is sent, first and obtain actual outgoing interface, and message is encapsulated
Can be successfully transmitted away from outgoing interface after good PPP frame originating point informations, this transmission process with flow process when not using the present invention is
Identical.After RNC receives message, also without special character, normal process.
Embodiment three, IPoA access ways：
The access interface of RNC sides needs to enable ATM ARP proxy, for acting on behalf of the ATM ground of RNC virtual interface IP address
Location.
The learning process of whole atm address is identical with during Ethernet access, so can learn automatically the IP to Node B
Address and Node B access the corresponding relation between the atm address of the interface of RNC, naturally it is also possible to manual configuration this correspondingly close
System.After having this corresponding relation, the transmitting-receiving of message can be carried out.
For downlink message, RNC when message is sent, first searches routing table and obtains outgoing interface, and outgoing interface is default
Virtual interface.Corresponding relation between the atm address of the interface that the IP address and Node B for then looking up Node B accesses RNC,
The access interface that VPI (VPI), the VCI (VCI) and virtual connections for obtaining corresponding virtual connections is located, IP are reported
Text can be exchanged into ATM cell and be successfully transmitted away from corresponding access interface.After Node B receive cell, there is no spy
Different part, normal process.
For uplink message, Node B search routing table when message is sent, first and obtain actual outgoing interface, and IP messages turn
It is successfully transmitted away from outgoing interface by after being changed to ATM cell, this transmission process is phase with flow process when not using the present invention
With.After RNC receives cell, also without special character, ATM cell is converted to IP messages normally and is processed.
Compared with the prior art, the present embodiment saves IP address resource in access network, does not increase multiple in terms of configuration
Miscellaneous degree, but the present embodiment is applied to the plurality of access modes such as Ethernet, PPP and IPoA, and drastically reduce the area Access Control
Number of routes on device, is conducive to the maintenance and management of access controller.The simultaneously technical scheme provided by the embodiment of the present invention
Only for access controller, fully transparent to access point, accessing user is without making any adjustments.
One of ordinary skill in the art will appreciate that all or part of step in said method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read only memory, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Can be realized in the form of hardware in ground, each module/unit in above-described embodiment, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
The preferred embodiments of the present invention are these are only, certainly, the present invention can also there are other various embodiments, without departing substantially from this
In the case of spirit and its essence, those of ordinary skill in the art work as and can make various corresponding changes according to the present invention
And deformation, but these corresponding changes and deformation should all belong to the protection domain of appended claims of the invention.
Claims (11)
1. a kind of file transmitting method, including：
Set up the address information of access point and the corresponding relation of the interface of access point access access controller；
When the access controller accesses described access point, if the access controller finds and accesses the access point and go out to connect
Mouth is default virtual interface, then search the access point according to next-hop ip address and the corresponding relation and access access controller
Interface, wherein, the IP address of the virtual interface and the IP address of described access point belong to the same network segment；
The packet is sent to described connecing by encapsulated data packet, the interface for accessing the access controller by described access point
Access point；
Wherein, described access point specifically includes Node B, and the access controller specifically includes RNC；The IP of virtual interface configuration
Address belongs to the same network segment with the IP address of Node B；Each Node B accesses the actual interface of RNC without configuring IP address.
2. the method for claim 1, it is characterised in that：The address information for setting up access point is accessed with the access point
The corresponding relation of the interface of access controller, including：
The access controller enables medium education (MAC) the address letter of address analysis protocol proxy study described access point
Breath；
Set up the IP address of described access point, the MAC Address of described access point and the access point and access the access controller
The corresponding relation of interface.
3. method as claimed in claim 2, it is characterised in that：The encapsulated data packet, is accessed by described access point described
The packet is sent to described access point by the interface of access controller, including：
Target MAC (Media Access Control) address and source MAC according to the Ethernet frame head of the corresponding relation encapsulated message；
The message is sent to described access point by the interface for accessing the access controller by described access point.
4. the method for claim 1, it is characterised in that：The address information for setting up access point is accessed with the access point
The corresponding relation of the interface of access controller, including：
The access controller consults the IP address of study described access point by the IP control protocol of peer-peer protocol；
Set up the IP address of described access point and the corresponding relation of the interface of access point access access controller.
5. method as claimed in claim 4, it is characterised in that：The encapsulated data packet, is accessed by described access point described
The packet is sent to described access point by the interface of access controller, including：
The peer-peer protocol frame originating point information of encapsulated message；
The message is sent to described access point by the interface for accessing the access controller by described access point.
6. the method for claim 1, it is characterised in that：The address information for setting up access point is accessed with the access point
The corresponding relation of the interface of access controller, including：
The access controller enables asynchronous transfer mode address analysis protocol proxy, learns the asynchronous transmission mould of described access point
Formula address；
Set up the IP address of described access point, the asynchronous transmission address of described access point and the access point and access the Access Control
The corresponding relation of the interface of device.
7. method as claimed in claim 6, it is characterised in that：The encapsulated data packet, is accessed by described access point described
The packet is sent to described access point by the interface of access controller, including：
The interface message that VPI, VCI and the virtual connections that virtual connections are obtained according to the corresponding relation are located,
The IP messages for being sent to described access point are converted to ATM cell；
The ATM cell is sent to described connecing by the interface for accessing the access controller by described access point
Access point.
8. a kind of access controller, including：
Module is set up, for setting up the corresponding of the interface of the address information of access point and the access point access access controller
Relation；
Searching modul, for when the access controller accesses described access point, accesses the access point and goes out to connect finding
In the case that mouth is default virtual interface, the access point is searched according to next-hop ip address and the corresponding relation and is accessed
The interface of controller, wherein, the IP address of the virtual interface belongs to the same network segment with the IP address of described access point；
Sending module, for encapsulated data packet, accesses the interface of the access controller by the data by described access point
Bag is sent to described access point；
Wherein, described access point specifically includes Node B, and the access controller specifically includes RNC；The IP of virtual interface configuration
Address belongs to the same network segment with the IP address of Node B；Each Node B accesses the actual interface of RNC without configuring IP address.
9. access controller as claimed in claim 8, it is characterised in that：
The module of setting up includes：
Unit, learns the MAC Address of described access point for enabling address analysis protocol proxy；
Unit is set up, described for setting up the access of the IP address of described access point, the MAC Address of described access point and the access point
The corresponding relation of the interface of access controller；
The sending module, including：
Encapsulation unit, the target MAC (Media Access Control) address for the Ethernet frame head according to the corresponding relation encapsulated message and source MAC ground
Location；
The message is sent to described connecing for accessing the interface of the access controller by described access point by transmitting element
Access point.
10. access controller as claimed in claim 8, it is characterised in that：
The module of setting up includes：
Unit, for consulting the IP address of study described access point by the IP control protocol of peer-peer protocol；
Unit is set up, for setting up the right of the interface of the IP address of described access point and the access point access access controller
Should be related to；
The sending module, including：
Encapsulation unit, for the peer-peer protocol frame originating point information of encapsulated message；
The message is sent to described connecing for accessing the interface of the access controller by described access point by transmitting element
Access point.
11. access controllers as claimed in claim 8, it is characterised in that：
The module of setting up includes：
Unit, for enabling the asynchronous transmission ground of asynchronous transfer mode address analysis protocol proxy study described access point
Location；
Unit is set up, is connect for setting up the IP address of described access point, the asynchronous transmission address of described access point and the access point
Enter the corresponding relation of the interface of the access controller；
The sending module, including：
Encapsulation unit, for obtaining VPI, VCI and the virtual connections institute of virtual connections according to the corresponding relation
Interface message, the IP messages for being sent to described access point are converted to ATM cell；
Transmitting element, for accessing the interface of the access controller by the ATM cell by described access point
It is sent to described access point.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207348.4A CN102238091B (en) | 2011-07-22 | 2011-07-22 | A kind of file transmitting method and access controller |
| PCT/CN2012/076837 WO2012155867A1 (en) | 2011-07-22 | 2012-06-13 | Packet sending method and access controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110207348.4A CN102238091B (en) | 2011-07-22 | 2011-07-22 | A kind of file transmitting method and access controller |
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| CN102238091A CN102238091A (en) | 2011-11-09 |
| CN102238091B true CN102238091B (en) | 2017-03-15 |
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| CN201110207348.4A Expired - Fee Related CN102238091B (en) | 2011-07-22 | 2011-07-22 | A kind of file transmitting method and access controller |
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| CN103152255B (en) * | 2013-02-20 | 2016-06-29 | 神州数码网络(北京)有限公司 | The method and apparatus that a kind of data forward |
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| US11223569B2 (en) | 2020-04-02 | 2022-01-11 | PrimeWan Limited | Device, method, and system that virtualize a network |
| JP2023523915A (en) * | 2020-05-06 | 2023-06-08 | プライムワン リミテッド | virtual network device |
| CN114035539B (en) * | 2021-10-25 | 2023-12-05 | 东风商用车有限公司 | Method, device, equipment and storage medium for generating communication matrix of instantiated vehicle type |
| CN116827627B (en) * | 2023-06-27 | 2023-12-26 | 江苏元信网安科技有限公司 | IPsecVPN-based source MAC transparent transmission system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1722872A (en) * | 2004-07-15 | 2006-01-18 | 大唐移动通信设备有限公司 | Method for realizing automatic establishment of specific OM channel for 3G base station |
| CN1964323A (en) * | 2006-11-15 | 2007-05-16 | 华为技术有限公司 | A system, device and method for realizing base station to support IP transmission via Iub interface |
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| US7983716B2 (en) * | 2003-09-30 | 2011-07-19 | Interdigital Technology Corporation | Centralized radio network controller |
| CN102238091B (en) * | 2011-07-22 | 2017-03-15 | 中兴通讯股份有限公司 | A kind of file transmitting method and access controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1722872A (en) * | 2004-07-15 | 2006-01-18 | 大唐移动通信设备有限公司 | Method for realizing automatic establishment of specific OM channel for 3G base station |
| CN1964323A (en) * | 2006-11-15 | 2007-05-16 | 华为技术有限公司 | A system, device and method for realizing base station to support IP transmission via Iub interface |
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| CN102238091A (en) | 2011-11-09 |
| WO2012155867A1 (en) | 2012-11-22 |
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