CN102255762A - Method and device for constructing network example - Google Patents

Method and device for constructing network example Download PDF

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Publication number
CN102255762A
CN102255762A CN2011102464990A CN201110246499A CN102255762A CN 102255762 A CN102255762 A CN 102255762A CN 2011102464990 A CN2011102464990 A CN 2011102464990A CN 201110246499 A CN201110246499 A CN 201110246499A CN 102255762 A CN102255762 A CN 102255762A
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network example
network
configuration
address information
information
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CN2011102464990A
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Chinese (zh)
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文远癸
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2011102464990A priority Critical patent/CN102255762A/en
Publication of CN102255762A publication Critical patent/CN102255762A/en
Priority to PCT/CN2012/070874 priority patent/WO2012149832A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0803Configuration setting
    • H04L41/0806Configuration setting for initial configuration or provisioning, e.g. plug-and-play

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention relates to a method and device for constructing a network example. The method comprises the following steps of: intercepting a protocol message of a user to obtain user address information in the protocol message; transmitting the user address information to configuration equipment to inquire configuration information; receiving network example configuration information corresponding to the user address information transmitted by the configuration equipment; and establishing a network example according to the network example configuration information. In the method and device for constructing the network example provided by the embodiment of the invention, a corresponding relation is inquired automatically by using the user address information and network example configuration information corresponding to the address information is acquired, so that the network example can be constructed automatically according to the network example configuration information, the cost on manual configuration of the network example is saved, and the configuring efficiency of the network example is increased effectively.

Description

The creation method of network example and device
Technical field
The present invention relates to data communication field, relate in particular to a kind of creation method and device of network example.
Background technology
Multiprotocol label switching (Multi Protocol Label Switching, MPLS) two-layer virtual private network (Layer 2 Virtual Private Network, L2VPN) can on same network, provide IP service and two-layer VPN service simultaneously, and can set arbitrary velocity, and configuration is simple.Use this network technology, operator just can only manage and move a network, IP service, three-layer virtual special network (Virtual Private Network just can be provided on a network simultaneously, VPN), many services such as two-layer VPN, traffic engineering, Differentiated Services, thereby reduced construction, maintenance and the operating cost of operator.MPLS L2VPN business especially is fit to those can manage the enterprise of the routing infrastructure of own network voluntarily, and is reluctant enterprise network is planned the enterprise that is exposed to operator.
MPLS L2VPN comprise the virtual special local area network service (Virtual Private LAN Service, VPLS) and VLL (Virtual Leased Line, VLL) two kinds.The VPLS technology is exactly the Ethernet data of transparent transmission user on the MPLS network.From user's angle, the MPLS network of having used the VPLS technology is exactly one two layers a switching network, by this network, can set up the connection based on two layers of Ethernets between the different user network example.
The user is configuration VPLS network example information on router or switch earlier, goes up the VPLS network example information of propagating by agreement at many network equipments (as router or switch) then.So prior art must at first dispose VPLS network example information by the user on the network equipment, find the VPLS network example information that the user has configured then automatically, on many network equipments, create virtual circuit by agreement at last.
This shows that VPLS network example information must (for example have 1000 VPLS examples on 500 routers, every router) by carrying out manual configuration when large scale deployment VPLS, user's configuration effort amount is very big; And after customer equipment inserted the VPLS network, when the position of customer equipment in network changes, need the manual configuration that changes.
Summary of the invention
The embodiment of the invention relates to a kind of creation method and device of network example, to realize the automatic establishment to network example, saves the time cost and the Financial cost of configuration, has effectively improved efficient.
An aspect of of the present present invention provides a kind of creation method of network example, and described method comprises:
Protocol massages to the user is intercepted, and obtains the station address information in the described protocol massages;
Send described station address information to configuration device and come query configuration information;
Receive the pairing network example configuration information of described station address information that described configuration device sends;
Create network example according to described network example configuration information.
An aspect of of the present present invention provides a kind of creation method of network example, and described method comprises:
Receive station address information;
Inquire about the corresponding relation of described address information and network example configuration information;
Obtain the pairing required network example configuration information of configuration network example that is used for of described address information;
Send the described required network example configuration information of configuration network example that is used for.
An aspect of of the present present invention provides a kind of creation apparatus of network example, and described device comprises:
Acquiring unit is used for user's protocol massages is intercepted, and obtains the station address information in the described protocol massages;
Transmitting element is used for sending described station address information to configuration device and comes query configuration information;
Receiving element is used to receive the pairing network example configuration information of described station address information that described configuration device sends;
The example creating unit is used for creating network example according to described network example configuration information.
An aspect of of the present present invention provides a kind of creation apparatus of network example, and described device comprises:
Receiving element is used to receive station address information;
Query unit is used to inquire about the corresponding relation of described address information and network example configuration information;
Acquiring unit is used to obtain the pairing required network example configuration information of configuration network example that is used for of described address information;
Transmitting element is used to send the described required network example configuration information of configuration network example that is used for.
Present embodiment of the present invention is created the network example method and apparatus, utilize station address information to inquire about corresponding relation automatically and obtain the network example configuration information of this address information correspondence, can create network example according to this network example configuration information automatically thus, so exempted the cost that utilizes the human configuration network example, effectively improved the efficient of configuration network example.
Description of drawings
Fig. 1 is the flow chart of creation method of the network example of one embodiment of the invention;
Fig. 2 is the flow chart of creation method of the network example of one embodiment of the invention;
Fig. 3 is the applied environment schematic diagram of creation method of the network example of one embodiment of the invention;
Fig. 4 is the flow chart of creation method of the network example of one embodiment of the invention;
Fig. 5 is the reciprocal process schematic diagram of creation method of the network example of one embodiment of the invention;
Fig. 6 sets up the process schematic diagram for the PW of the creation method of the network example of one embodiment of the invention;
Fig. 7 is the schematic diagram of creation apparatus of the network example of one embodiment of the invention;
Fig. 8 is the schematic diagram of creation apparatus of the network example of one embodiment of the invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
To be the mode that will create network example become and can have been disposed automatically by the manual human configuration of prior art the embodiment of the invention, can create network example quickly and easily thus.
Fig. 1 is the flow chart of creation method of the network example of one embodiment of the invention, as shown in the figure, the creation method of the network example of the embodiment of the invention for disposal subject, for example switch or router, present embodiment specifically comprises the steps.
Step 101 is intercepted user's protocol massages, obtains the station address information in the protocol massages.
The protocol massages of intercepting includes but not limited to address resolution protocol (Address Resolve Protocol, ARP) or DHCP (Dynamic Host Configure Protocol, DHCP) message, the station address information that can obtain, the station address information of ARP message includes but not limited to MAC Address, the IP address, the address information of DHCP message comprises MAC Address, the IP address, information such as Hostname and domain names, the purpose that this step is intercepted message is exactly in order to obtain user's address information, for example MAC Address, the IP address, MAC Address adds the IP address, Hostname or the like.
Step 102 sends station address information to configuration device and comes query configuration information.
The purpose that mac address information that step 101 is obtained or IP address information send is utilized these address informations exactly, removes to inquire about corresponding network example configuration information to configuration device.
The network example configuration information also can be called site information, comprises various parameters, for example can comprise title, encapsulated type and/or the maximum encapsulation unit (MTU) of network example.
Step 103 receives the pairing network example configuration information of station address information that configuration device sends.
When utilizing mac address information or IP address information to inquire the network example configuration information, receive the network example configuration information, this network example configuration information is exactly the network example configuration information of mac address information or IP address information correspondence.
Step 104 is created network example according to the network example configuration information.
Creating network example is to create the network example configuration information establishment network example that basis is returned on the main body, and the various parameters of this network example, for example encapsulated type and MTU etc. are set.
Preferably, described step 101-104 is carried out by access switch.
Preferably, more as shown in Figure 1, the embodiment of the invention also comprises step 105, sets up the corresponding relation between station address information and network example, and described corresponding relation is sent to forwarding engine.
Corresponding relation between forwarding engine maintenance customer address information and network example, when receiving the user data message, obtain the station address information in this user's message, so just can inquire about corresponding relation and obtain the network example of this station address information correspondence, then this user data message be sent to corresponding network example.
Present embodiment create the network example method the processing main body can but be not limited to router or switch, and network example includes, but are not limited to VPLS example, virtual private circuit business (Virtual Private Wire Service, VPWS) example, three-layer virtual special network (Layer 3 Virtual Private Network, L3VPN) example.According to the network example creation method of present embodiment, utilize the network example configuration information that obtains automatically to create network example, exempted the cost that utilizes the human configuration network example, effectively improved the efficient of configuration network example.
Fig. 2 is the flow chart of creation method of the network example of one embodiment of the invention, as shown in the figure, the creation method of the network example of the embodiment of the invention for network example configuration information main body is set, deployment server for example, present embodiment specifically comprises the steps.
Step 201 receives station address information.
Station address information be network example create main body for example switch or server send, obtain by intercepting ARP message or DHCP message, these address informations can be that MAC Address, IP address, MAC Address add IP address, Hostname or the like.
Step 202, the corresponding relation of inquire address information and network example configuration information.
Corresponding relation can create in advance, just the corresponding relation between good network example configuration information of configured in advance and the station address.
Step 203 is obtained the pairing required network example configuration information of configuration network example that is used for of address information.
The network example configuration information also can be called site information, comprises various parameters, for example can comprise title, encapsulated type and/or the maximum encapsulation unit (MTU) of network example.
From above-mentioned corresponding relation, can obtain the pairing network example configuration information of station address.
Step 204, transmission is used for the required network example configuration information of configuration network example.
Present embodiment create the network example method the processing main body can but be not limited to deployment server, and network example includes, but are not limited to VPLS example, VPWS example and L3VPN example.According to the network example creation method of present embodiment, the network example configuration information that the network equipment can obtain automatically so that create network example automatically, has been exempted the cost that utilizes the human configuration network example, has effectively improved the efficient of configuration network example.
Fig. 3 is the applied environment schematic diagram of creation method of the network example of one embodiment of the invention, as shown in the figure, comprise main frame (H1 and H2) 10, have network interface card 11 in the main frame 10, automatically deployment server 20, access switch (SW_A1 and SW_A2) 31 and converge/core switch 32.Shown in the flow chart of the creation method of the network example of Fig. 4 one embodiment of the invention, the network example creation method of present embodiment specifically comprises the steps;
Step 301, configuration network example, for example configuration information of VPLS example and station address information, for example corresponding relation between MAC Address, the IP address on automatic deployment server.
The configuration of corresponding relation can be a manual configuration, for example carries out manual configuration by the network manager.
Step 302, on access switch the configuration VPLS dispose ability automatically.
Switch just can be inquired about and create the needed network example configuration information of VPLS example thus, and the configuration of this step can be manual configuration equally, for example carries out manual configuration by the network manager.
Step 311, access switch, for example SW_A1 intercepts the ARP or the DHCP message of the network interface card transmission of main frame H1, obtains host MAC address and/or IP address information in the message thus.
Step 312, access switch SW_A1 sends to automatic deployment server with MAC Address and/or the IP address information of extracting.
Step 313, deployment server obtains the VPLS network example configuration information of MAC Address, IP address correspondence thus according to MAC Address, IP address lookup corresponding relation automatically.
Step 314, deployment server returns to access switch SW_A1 with the VPLS network example configuration information that inquiry obtains automatically.
Step 315, access switch SW_A1 creates the VPLS example automatically according to the VPLS network example configuration information that receives.
Step 316, access switch SW_A1 sets up corresponding relation between MAC Address and the VPLS network example and/or the corresponding relation between IP address and the VPLS network example, and corresponding relation is sent to the forwarding engine of switch.Forwarding engine just can be transmitted the user data message that receives according to corresponding relation like this.
Step 320, to other switch, as SW_A2 issue VPLS information, (Pseudo Wire, PW) PW also are virtual circuit to access switch SW_A1 thereby create pseudo-line by agreement.
Other switch also is so to create the VPLS example automatically, after switch creates the VPLS example, just can issue VPLS information mutually.After the issue, access switch just can receive the data message of the network interface card transmission of main frame, extract MAC Address, IP address information in the data message then, obtain corresponding VPLS example, send datagram to this VPLS example according to address information inquiry corresponding relation.
Because for VPLS, several ietf standards: RFC 4761, RFC 4762, RFC 6074, draft-xu-l2vpn-vpls-isis-XX are arranged.
Use the VPLS of RFC 4761 standards to be called BGP VPLS, RFC 4761 standards are that (Border Gateway Protocol BGP) sets up the solution that virtual circuit (being pseudo-line) is realized VPLS by Border Gateway Protocol.In this scheme, bgp protocol is realized equipment (the Provider Equipment of operator, PE) the automatic discovery and the label distribution of equipment, set up full the connection between other all PE of edge router PE that each participation provides VPLS to serve in the core net, send the multi-protocols that comprise VPLS network example information by BGP to other PE can reach/unreachable network layer information (MP_REACH/UNREACH_NLRI) message carries out parameter negotiation, set up and remove the virtual circuit between the VPLS network example, constitute the VPLS network thereby each VPLS network example can be linked together.
Use the VPLS of RFC 4762 standards to be called LDP VPLS, RFC 4762 standard definitions (Label Distribute Protocol LDP) sets up the solution that virtual circuit is realized VPLS by tag distribution protocol.In this scheme, the user specifies PE equipment by hand, the LDP agreement realizes the label distribution of VPLS network example, set up full the connection between other all PE of edge router PE that each participation provides VPLS to serve in the core net, send the signaling message that comprises VPLS network example information (network example sign, label) by LDP to other PE and carry out parameter negotiation, set up and remove the virtual circuit between the VPLS network example, constitute the VPLS network thereby each VPLS network example can be linked together.
Use the VPLS of RFC 6074 standards to be referred to as BGP-AD VPLS, RFC 6074 standard definitions find (Auto Discovery, AD) solution of VPLS network example information automatically by bgp protocol.In this scheme, bgp protocol is realized the automatic discovery of PE equipment, after certain VPL network example information of discovery, sets up the pseudo-line of VPLS by RFC 4762 standards again.
Use the VPLS of draft-xu-l2vpn-vpls-isis-XX agreement to be referred to as IS-IS VPLS, the draft-xu-l2vpn-vpls-isis-XX protocol definition (Intermediate System to Intermediate System, IS-IS) agreement is set up the solution that virtual circuit is realized VPLS by Intermediate System-to-Intermediate System.In this scheme, Intermediate System to Intermediate System is realized the automatic discovery and the label distribution of PE equipment.
Utilize the creation method of the network example of the embodiment of the invention to create after the VPLS example, just can carry out the mutual of VPLS member, and the automatic deployment of PW.Be that example describes with BGP-AD VPLS below.
Referring to the reciprocal process schematic diagram of the creation method of the network example of one embodiment of the invention of Fig. 5, as shown in the figure, PE equipment (for example PE1 and PE2) is exactly the switch in the foregoing description, as access switch with converge/core switch,
After creating the VPLS network example automatically on the PE equipment, PE1 is with VPLS-ID, Route Distinguisher (RD, Route Distinguisher), route target (RT, Route Target), the VSI-ID parameter is encapsulated in the Update message of BGP as in the BGP AD message, the opposite end PE in all BGP territories sends then.
The parameter that encapsulates in the Update message of the BGP of PE1 among the figure is: VPLS-ID:65535:100, RD:65535:100, VSI-ID:1.1.1.1, RT:5:5, next jumping (Next Hop): 1.1.1.1.
The parameter that encapsulates in the Update message of the BGP of PE2 is: VPLS-ID:65535:100, RD:65535:100, VSI-ID:2.2.2.2, RT:5:5, Next Hop:2.2.2.2.
After PE receives the Update message that far-end sends over, can filter the BGP AD message of receiving according to the RT strategy of configuration.For the BGP AD message that meets the RT strategy, PE equipment can obtain the information of far-end VSI from message, and these far-end information and the information that local configuration generates are compared.
If when the VPLS-ID among the VSI of two ends PE equipment is identical, for example be 65535:100 in the present embodiment, illustrate that two VSI belong to same VPLS territory, PW can be consulted to set up, and a PW can only be set up between these two VSI.If the VPLS-ID among the VSI of two ends PE equipment is not simultaneously, illustrate that these two VSI adhere to different VPLS territories separately, then can not set up PW.
After finishing VPLS member's discovery, then consult to set up PW by LDP FEC 129 signalings, PW referring to the creation method of the network example of one embodiment of the invention shown in Figure 6 sets up the process schematic diagram, as shown in the figure, the VSI that belongs to identical VPLS territory on two PE (PE1 and PE2) wherein carries information such as AGI, SAII, TAII and label according to initiating LDP Mapping (FEC 129) signaling mutually to the LDP session status of far-end (the Next Hop among the BGP AD).
The message of carrying in the LDP Mapping signaling of PE1 among the figure is: Next Hop:1.1.1.1, additional group id (AGI, Attachment Group Identifier): 65535:100 (VPLS-ID), the additional person identifier (SAII in source, Source Attachment Individual Identifier): 1.1.1.1 (VSI-ID), the additional person identifier (TAII, Target Attachment Individual Identifier) of purpose: 2.2.2.2 (VSI-ID from BAG AD), label (Label): 2001.
The message of carrying in LDP mapping (Mapping) signaling of PE2 is Next Hop:2.2.2.2, AGI:65535:100 (VPLS-ID), SAII:2.2.2.2 (VSI-ID), TAII:1.1.1.1 (VSI-ID from BAG AD), Label:2001.
After PE receives the LDP Mapping signaling of far-end, resolve VPLS-ID, PW type, the information such as MTU, TAII obtained, these information and local VSI are compared,, and satisfy when setting up the condition of PW, be created to the PW of opposite end if consult to pass through.
The embodiment of the invention is the creation method of a network example again, the address information that the access switch utilization obtains when intercepting message, obtain the pairing network example configuration information of this address information to automatic deployment server inquiry corresponding relation, switch utilizes this network example configuration information can be used to create the VPLS example, exempt the cost that utilizes the human configuration network example thus, effectively improved the efficient of configuration network example.After creating the VPLS example, just the data message that receives can be issued to this VPLS example and suffer.
The foregoing description is for the network example creation method, following for utilizing the network example creation apparatus to come network example is created, Fig. 7 is the schematic diagram of creation apparatus of the network example of one embodiment of the invention, as shown in the figure, the network example creation apparatus of present embodiment specifically comprises: acquiring unit 71, transmitting element 72, receiving element 73 and example creating unit 74.
Acquiring unit 71 is used for user's protocol massages is intercepted, and obtains the station address information in the described protocol massages; Transmitting element 72 is used for sending described station address information to configuration device and comes query configuration information; Receiving element 73 is used to receive the pairing network example configuration information of described station address information that described configuration device sends; Example creating unit 74 is used for creating network example according to described network example configuration information.
Again as shown in Figure 7, present embodiment comprises that also corresponding relation sets up unit 75 and retransmission unit 76, and corresponding relation is set up unit 75 and is used to set up corresponding relation between described station address information and described network example, and described corresponding relation is sent to forwarding engine; And retransmission unit 76 is used for described forwarding engine according to described corresponding relation forwarding data message.
Concrete, 71 pairs of ARP messages of acquiring unit or DHCP message are intercepted, and station address information can be MAC Address and/or IP address, and the configuration information that receiving element 73 receives can be title, encapsulated type and/or the maximum encapsulation unit information of the pairing network example of station address information, present embodiment create the network example device can but be not limited to router or switch, and network example can be VPLS example, VPWS example or L3VPN example.The network example creation apparatus of present embodiment can obtain the network example configuration information automatically, creates network example automatically according to this network example configuration information, has exempted the cost that utilizes the human configuration network example, has effectively improved the efficient of configuration network example.
Fig. 8 is the schematic diagram of creation apparatus of the network example of one embodiment of the invention, and as shown in the figure, the network example creation apparatus of present embodiment specifically comprises: creating unit 80, receiving element 81, query unit 82, acquiring unit 83 and transmitting element 84.
Creating unit 80 is optionally, is used to create the corresponding relation of station address information and network example configuration information; Receiving element 81 is used to receive station address information, and these address informations can be that network example is created for example MAC Address and/or the IP address that send of switch or server of main body; Query unit 82 is used for the corresponding relation of inquire address information and network example configuration information; Acquiring unit 83 is used to obtain the pairing required network example configuration information of configuration network example that is used for of address information; Transmitting element 84 is used to send and is used for the required network example configuration information of configuration network example.
Present embodiment create network example device can but be not limited to deployment server, and network example can be VPLS example, VPWS example or L3VPN example.The address information that the device utilization of the establishment network example of present embodiment obtains, the inquiry corresponding relation obtains the pairing network example configuration information of this address information, and the network example configuration information sent to equipment that need to create network example, make it can create network example automatically, exempt the cost that utilizes the human configuration network example thus, effectively improved the efficient of configuration network example.
The professional should further recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in the above description.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each specific should being used for, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (14)

1. the creation method of a network example is characterized in that, described method comprises:
Protocol massages to the user is intercepted, and obtains the station address information in the described protocol massages;
Send described station address information to configuration device and come query configuration information;
Receive the pairing network example configuration information of described station address information that described configuration device sends;
Create network example according to described network example configuration information.
2. the creation method of network example according to claim 1, it is characterized in that, described protocol massages to the user is intercepted, the station address information of obtaining in the described protocol massages comprises: ARP message or dynamic host configuration protocol DHCP message are intercepted, obtain MAC Address or IP address in described ARP or the DHCP message.
3. the creation method of network example according to claim 1 and 2 is characterized in that, title, encapsulated type and/or the maximum encapsulation unit of the described network example configure packet includes network example that receives.
4. the creation method of network example according to claim 1 is characterized in that, described method also comprises: set up the corresponding relation between described station address information and described network example, and described corresponding relation is sent to forwarding engine.
5. the creation method of network example according to claim 4 is characterized in that, described method comprises that also described forwarding engine is according to described corresponding relation forwarding data message.
6. according to the creation method of claim 1,2,4 or 5 described network example, it is characterized in that the described network example of establishment comprises virtual special local area network service VPLS example, the professional VPWS example of virtual private circuit or three-layer virtual special network L3VPN example.
7. the creation method of a network example is characterized in that, described method comprises:
Receive station address information;
Inquire about the corresponding relation of described address information and network example configuration information;
Obtain the pairing required network example configuration information of configuration network example that is used for of described address information;
Send the described required network example configuration information of configuration network example that is used for.
8. the creation apparatus of a network example is characterized in that, described device comprises:
Acquiring unit is used for user's protocol massages is intercepted, and obtains the station address information in the described protocol massages;
Transmitting element is used for sending described station address information to configuration device and comes query configuration information;
Receiving element is used to receive the pairing network example configuration information of described station address information that described configuration device sends;
The example creating unit is used for creating network example according to described network example configuration information.
9. the creation apparatus of network example according to claim 8, it is characterized in that, described acquiring unit is used for ARP message or dynamic host configuration protocol DHCP message are intercepted, and obtains MAC Address or IP address in described ARP or the DHCP message.
10. according to Claim 8 or the creation apparatus of 9 described network example, it is characterized in that described receiving element is used to receive title, encapsulated type and/or the maximum encapsulation unit of the pairing network example of described station address information that described configuration device sends.
11. the creation apparatus of network example according to claim 8, it is characterized in that, described device comprises that also corresponding relation sets up the unit, is used to set up the corresponding relation between described station address information and described network example, and described corresponding relation is sent to forwarding engine.
12. the creation apparatus of network example according to claim 11 is characterized in that, described device also comprises retransmission unit, is used for described forwarding engine and transmits data message according to described corresponding relation.
13. the creation apparatus of 9,11 or 12 described network example according to Claim 8,, it is characterized in that the described network example that described example creating unit is created comprises virtual special local area network service VPLS example, the professional VPWS example of virtual private circuit or three-layer virtual special network L3VPN example.
14. the creation apparatus of a network example is characterized in that, described device comprises:
Receiving element is used to receive station address information;
Query unit is used to inquire about the corresponding relation of described address information and network example configuration information;
Acquiring unit is used to obtain the pairing required network example configuration information of configuration network example that is used for of described address information;
Transmitting element is used to send the described required network example configuration information of configuration network example that is used for.
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WO2014180199A1 (en) * 2013-05-08 2014-11-13 华为技术有限公司 Network establishment method and control device
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