CN104158768B - A kind of method and system of extended network interface, the method for receiving and dispatching message - Google Patents
A kind of method and system of extended network interface, the method for receiving and dispatching message Download PDFInfo
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- CN104158768B CN104158768B CN201410311826.XA CN201410311826A CN104158768B CN 104158768 B CN104158768 B CN 104158768B CN 201410311826 A CN201410311826 A CN 201410311826A CN 104158768 B CN104158768 B CN 104158768B
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Abstract
The invention discloses a kind of method and system of extended network interface, the method for receiving and dispatching message, this method includes：By the extension mouth of exchange chip layout and saving interface number, and registered by virtual network card equipment in order, the interface name externally shown is set；According to the upper united mouth of interface number setting extension mouth and extension mouth, the correspondence of the network interface of the network equipment, and preserve the correspondence；Mouth will be extended according to interface name and correspond to the corresponding VLAN of virtual network card equipment, it is according to the correspondence that the upper united mouth of extension mouth, network interface is corresponding with VLAN, and preserve the VLAN ID of VLAN；Exchange chip configures double label modes according to the VLAN ID, and outer layer label is set, it disclosure satisfy that requirement of the heterogeneous networks equipment to network interface density, while it is independent network interface externally apparently each to extend mouth by exchange chip, can independently issue configuration and receive and dispatch message.
Description
Technical field
The present invention relates to network to extend field, more particularly to a kind of method and system of extended network interface, transmitting-receiving message
Method.
Background technology
Current digital communication era requires higher and higher, the network such as fire wall, interchanger to the interface density of the network equipment
The quantity and species of the external network of equipment are all being continuously increased.If the network equipment all draws independent network interface Lai external net by network interface card
Network, the totle drilling cost of the network equipment will become very high, so most of network equipment is all to pass through exchange chip in the prior art
Carry out extended network interface.
When in the prior art, by exchange chip extended network interface, dynamic division virtual LAN (Virtual first
Local Area Network, VLAN), then the interface of the network equipment is added in corresponding VLAN by exchange chip, is handed over
Change chip and do not register network interface in itself.It is required for carrying out the behaviour such as VLAN divisions and interface configuration when receiving and dispatching message by interface every time
Make, while to the external network interface for seeing extension nor stand-alone interface, can not the directly data such as configuration of IP, route, flow it is multiple
It is miscellaneous, operate cumbersome.
The content of the invention
The present invention makes in view of the foregoing, and the purpose is to provide a kind of system and method for extended network interface, receive
Transmit messages the method for text, disclosure satisfy that requirement of the heterogeneous networks equipment to network interface density, while each extension mouth is divided into solely
Vertical VLAN is simultaneously registered by virtual network card equipment interface, sees that each by exchange chip extension mouth is separate mesh to external
Mouthful, it can independently issue configuration and receive and dispatch message.
According to an aspect of the present invention, there is provided a kind of method of extended network interface, includes the following steps：
Step S1, by the extension mouth of exchange chip layout and saving interface number, and carried out by virtual network card equipment in order
Registration, sets the interface name externally shown.
Step S2, the extension mouth and the upper united mouth for extending mouth, the net of the network equipment are set according to the interface number
The correspondence of network interface, and preserve the correspondence.
Step S3, it is according to the interface name that the extension mouth is corresponding corresponding to the virtual network card equipment
VLAN, it is according to the correspondence that the upper united mouth of the extension mouth, network interface is corresponding with the VLAN, and described in preservation
The VLAN-ID of VLAN.
Step S4, exchange chip configures double label modes according to the VLAN-ID, and sets outer layer label.
Further, before the step S1, further include：
Step S00, network device registration network interface, the network interface carry interface handle function, and the network connects
The pointer of mouth is stored in global variable array, and the network interface after registering is hidden state.
Step S01, the network equipment are connected with the upper united mouth of exchange chip.
Preferably, the interface processing function includes at least：Message function is received, sends message function, the network equipment
Open the closing function of function and the network equipment.
Further, after the step S1, further include：
Step S11, extends mouth for the extension mouth carry and handles function, the extension mouth processing function includes at least：Even
Connect status scan function and speed duplex sets function.
According to another aspect of the present invention, there is provided a kind of method of network expansion interfaces transmitting-receiving message, the described method includes：
The extension mouth of exchange chip is registered as into virtual network card equipment, and is corresponded with VLAN；The exchange chip leads to
Upper united mouth is crossed with the network interface of the network equipment to be connected.
When receiving message, the reception message of carry on the exchange chip poll network interface corresponding with each extension mouth
Function, determines that one is used to forward the extension mouth of the message and sends the message to identified extension mouth；The institute
Definite extension mouth divests the outer layer label carried in message after receiving message, while by the corresponding extension message of the message
Breath preserves in messages, then message is transmitted up protocol stack and is handled.
Further, the method further includes：
Corresponding outer layer label is taken out according to the extension message breath preserved in message when sending message, and institute is stamped for message
Outer layer label is stated, then sending function according to the message of carry on the corresponding network equipment of extension mouth sends message.
According to another aspect of the invention, there is provided a kind of system of extended network interface, the system comprises：
Mouth registration module is extended, for by the extension mouth of exchange chip layout and saving interface number, and by virtual in order
Network card equipment is registered, and sets the interface name externally shown.
Network interface adaptation module, for setting the first line of a couplet of the extension mouth and the extension mouth according to the interface number
Mouthful, the correspondence of the network interface of the network equipment, and preserve the correspondence.
VLAN adaptation modules, for the extension mouth to be corresponded to the virtual network card equipment phase according to the interface name
Corresponding VLAN, it is according to the correspondence that the upper united mouth of the extension mouth, network interface is corresponding with the VLAN, and protect
Deposit the VLAN-ID of the VLAN.
Outer layer label setup module, for configuring double label modes according to the VLAN-ID, and sets outer layer label.
Preferably, the system also includes：Network device management module, for for network device registration network interface, being
Network interface carry respective handling function after registration, and the pointer of network interface is stored in global variable array.
Preferably, the processing function includes at least：Message function is received, sends the unlatching of message function, the network equipment
The closing function of function and the network equipment.
Preferably, the extension mouth registration module is additionally operable to extend mouth processing function, the expansion for the extension mouth carry
Exhibition mouth processing function includes at least：Connection status scanning function and speed duplex set function.
Preferably, it is described extension mouth registration module when exchange chip initialize according to be actually needed extend number of ports into
The registration of row extension mouth.
A kind of method of extended network interface provided by the present invention, including：The extension mouth of exchange chip is compiled in order
Simultaneously saving interface number, and being registered by virtual network card equipment is arranged, sets the interface name externally shown；According to the interface number
The extension mouth and the extension upper united mouth of mouth, the correspondence of the network interface of the network equipment are set, and preserve it is described right
It should be related to；The extension mouth is corresponded to by the corresponding VLAN of the virtual network card equipment according to the interface name, according to institute
State correspondence the upper united mouth of the extension mouth, network interface is corresponding with the VLAN, and preserve the VLAN- of the VLAN
ID；Exchange chip configures double label modes according to the VLAN-ID, and sets outer layer label.By extending mouth, extending the upper of mouth
Join the setting of correspondence between mouth, the network interface of the network equipment, VLAN, disclosure satisfy that heterogeneous networks equipment to network interface
The requirement of density, while each extension mouth is divided into independent VLAN and is registered by virtual network card equipment interface, to external
See it is each by exchange chip extension mouth be independent network interface, can independently issue configuration and receive and dispatch message.
Brief description of the drawings
Fig. 1 is the flow diagram of the method for the extended network interface of first preferred embodiment of the invention；
Fig. 2 is the flow diagram of the method for the extended network interface of second preferred embodiment of the invention；
Fig. 3 is the flow diagram of the method for third preferred embodiment of the invention transmitting-receiving message；
Fig. 4 is the structure diagram of the system of the extended network interface of four preferred embodiment of the invention；
Fig. 5 is the exchange chip of fifth preferred embodiment of the invention and the networking schematic diagram of the network equipment.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid this is unnecessarily obscured
The concept of invention.
The present invention provides a kind of system and method for extended network interface, the method for receiving and dispatching message, disclosure satisfy that different nets
Requirement of the network equipment to network interface density, while each extension mouth is divided into independent VLAN and by virtual network card equipment interface
Registered, to it is external see it is each by exchange chip extension mouth be independent network interface, can independently issue configuration and receive and dispatch message.
Fig. 1 is the flow diagram of the method for the extended network interface of first preferred embodiment of the invention.
As shown in Figure 1, a kind of method of extended network interface, includes the following steps：
Step S1, by the extension mouth of exchange chip layout and saving interface number, and carried out by virtual network card equipment in order
Registration, sets the interface name externally shown.
Wherein, the exchange chip has at least one upper united mouth and multiple extension mouths.
Step S2, the extension mouth and the upper united mouth for extending mouth, the net of the network equipment are set according to the interface number
The correspondence of network interface, and preserve the correspondence.
Wherein, the upper united mouth is Ethernet interface, at least one in the GMAC network interfaces of RMI or the RGMII network interfaces of ARM
Kind.The upper united mouth is to hide mouth, externally invisible, and the extension mouth is externally visible.
Step S3, it is according to the interface name that the extension mouth is corresponding corresponding to the virtual network card equipment
VLAN, it is according to the correspondence that the upper united mouth of the extension mouth, network interface is corresponding with the VLAN, and described in preservation
The VLAN-ID of VLAN.
According to interface number to the value of the remainder of the network interface quantity of the network equipment by the interface and the net
The network interface of network equipment corresponds to, and preserves the correspondence.
Model split VLAN by each extension mouth according to interface number+x, and the extension mouth and corresponding upper united mouth are drawn
Assign in the VLAN, and preserve corresponding VLAN-ID.Here, division VLAN is operation to exchange chip, exchange chip branch
Configuration register division VLAN is held, while has port mapping inside exchange chip.Exchange chip can be by accordingly after dividing VLAN
No. port is added in corresponding VLAN inside the corresponding exchange chip of extension mouth and upper united mouth, that is, make extension mouth with it is corresponding
VLAN is corresponding, realizes the isolation of each extension mouth, in case message blocks inside exchange chip, while can be by message
Upper united mouth is sent to, and network card equipment is sent to by upper united mouth.Wherein, the value of the x is the numerical value that can customize, value model
Enclose can be 1000 to 10000, it is preferred that can value be 4000.
Step S4, exchange chip configures double label modes according to the VLAN-ID, and sets outer layer label.
Wherein, after step S1, can also include：
Step S11, extends mouth for the extension mouth carry and handles function, the extension mouth processing function includes at least：Even
Connect status scan function and speed duplex sets function.
Fig. 2 is the flow diagram of the method for the extended network interface of second preferred embodiment of the invention.
As shown in Fig. 2, the method for the present embodiment extended network interface includes the following steps：
Step S00, network device registration network interface, the network interface carry interface handle function, and the network connects
The pointer of mouth is stored in global variable array, and the network interface after registering is hidden state.
The network interface is externally invisible under hidden state.
Step S01, the network equipment are connected with the upper united mouth of exchange chip.
Wherein, the interface processing function includes at least：Message function is received, sends message function, the network equipment is opened
Open the closing function of function and the network equipment.Wherein, the transmission-receiving function opened function and be used for opening network equipment of the network equipment,
The closing function of the network equipment is used to close the transmission-receiving function of the network equipment, can be distributed in the two functions and release software
Receive and dispatch resource.
Step S1 to step S4 is identical to step S4 with step S1 shown in Fig. 1, and details are not described herein.
A kind of method for extended network interface that the present embodiment is provided, disclosure satisfy that heterogeneous networks equipment to network interface
The requirement of density, while each extension mouth is divided into independent VLAN and is registered by virtual network card equipment interface, to external
See it is each by exchange chip extension mouth be independent network interface.
Fig. 3 is the flow diagram of the method for third preferred embodiment of the invention transmitting-receiving message.
As shown in figure 3, a kind of method of network expansion interfaces transmitting-receiving message, includes the following steps：
Step S301, virtual network card equipment is registered as by the extension mouth of exchange chip, and is corresponded with VLAN；The friendship
Chip is changed by upper united mouth with the network interface of the network equipment to be connected.
Step S302, when receiving message, carry on the exchange chip poll network interface corresponding with each extension mouth
Reception message function, determine one be used for forward the message extension mouth and the message is sent to identified extension
Mouthful；Extension mouth divests the outer layer label carried in message after receiving message determined by described, while the message is corresponded to
Extension message breath preserve in messages, then message is transmitted up into protocol stack and is handled.
Step S303, corresponding outer layer label is taken out when sending message according to the extension message breath preserved in message, and is
Message stamps the outer layer label, and then sending function according to the message of carry on the corresponding network equipment of extension mouth sends out message
See off.
Wherein, sequencing relation is had no between step S302 and step S303, they are triggered by different condition.
A kind of method for transmitting-receiving message that the present embodiment is provided, be by the extended network interface based on exchange chip into
The transmitting-receiving of row message, can reach each extension is independent network interface, independently issues configuration and receives and dispatches the purpose of message.
Fig. 4 is the structure diagram of the system of the extended network interface of four preferred embodiment of the invention.
As shown in figure 4, a kind of system of extended network interface, including：
Mouth registration module 401 is extended, for by the extension mouth of exchange chip layout and saving interface number, and by void in order
Intend network card equipment to be registered, set the interface name externally shown.
Extend mouth registration module 401 and also extend mouth processing function, the extension mouth processing function for the extension mouth carry
Include at least：Connection status scanning function and speed duplex set function.
Network interface adaptation module 402, for setting the extension mouth and the extension mouth according to the interface number
Join mouth, the network equipment network interface correspondence, and preserve the correspondence.
VLAN adaptation modules 403, for being set the extension mouth corresponding to the Microsoft Loopback Adapter according to the interface name
Standby corresponding VLAN, it is according to the correspondence that the upper united mouth of the extension mouth, network interface is corresponding with the VLAN,
And preserve the VLAN-ID of the VLAN.
Outer layer label setup module 404, for configuring double label modes according to the VLAN-ID, and sets outer layer label.
The system also includes：Network device management module 405, for for network device registration network interface, for registration
Network interface carry respective handling function afterwards, and the pointer of network interface is stored in global variable array.After registration
Network interface is hidden state, externally invisible.
Wherein, the processing function includes at least：Message function is received, sends message function, the unlatching letter of the network equipment
The closing function of number and the network equipment.
Preferably, the interface that the extension mouth registration module 401 is extended when exchange chip is initialized according to being actually needed
Number is extended the registration of mouth.
When the system receives message, carry on the exchange chip poll network interface corresponding with each extension mouth
Message function is received, determines that one is used to forward the extension mouth of the message and sends the message to identified extension
Mouthful；Extension mouth divests the outer layer label carried in message after receiving message determined by described, while the message is corresponded to
Extension message breath preserve in messages, then message is transmitted up into protocol stack and is handled.
Corresponding outer layer label is taken out according to the extension information mouth preserved in message when the system sends message, and is report
Text stamps the outer layer label, and then sending function according to the message of carry on the corresponding network equipment of extension mouth sends message
Go out.
A kind of system for extended network interface that the present embodiment is provided, based on exchange chip, disclosure satisfy that heterogeneous networks
Requirement of the equipment to network interface density, at the same each extension mouth be divided into independent VLAN and by virtual network card equipment interface into
Row registration, to it is external see it is each by exchange chip extension mouth be independent network interface, can independently issue configuration and receive and dispatch message.
Fig. 5 is the exchange chip of fifth preferred embodiment of the invention and the networking schematic diagram of the network equipment.
As shown in figure 5,2 network interfaces of network device registration, are respectively network interface 1 and network interface 2, and be them
Carry interface processing function, the pointer of network interface 1 and network interface 2 after registration are stored in global variable array respectively,
Such as g_stnetdev [0]=netdev1, wherein netdev1 are the pointers of network interface 1.Network interface 1 and net after registration
Network interface 2 is hidden state, invisible to external equipment.
Wherein, interface processing function includes at least：Message function is received, sends message function, the unlatching letter of the network equipment
The closing function of number and the network equipment.
The registration of mouth is extended when exchange chip initializes according to the number of ports for being actually needed extension.When needing extension 5
During a interface, 5 extension mouths are registered, respectively extend mouth 1 to extension mouth 5.And extend mouth for each extension mouth carry and handle letter
Number, including：Connection status scanning function and speed duplex set function.
Each extension mouth is registered by virtual network card equipment, sets the interface name externally shown, such as GE00-
00-00, and the interface number port_number for extending mouth is stored in pointer sw_netdev corresponding with the extension mouth, such as
It is sw_netdev1 to extend 1 corresponding pointer of mouth, and extension 2 corresponding pointer of mouth is sw_netdev2, and so on, extend mouth 5
Corresponding pointer is sw_netdev5.
Because 2 network interfaces of network device registration, by the interface number port_number of each extension mouth to 2
Remainder, according to obtained result will extend mouth it is corresponding with the network interface of the network equipment, which is stored in extension
In the corresponding pointer sw_netdev of mouth, and to sw_netdev->Up_port carries out assignment.According to above-mentioned algorithm, mouth 1 is extended
Interface number port_number is 1, and the result obtained to 2 remainders is 1, so extension mouth 1 is corresponding with network interface 1, sw_
netdev1->Up_port=g_stnetdev [0], the interface number port_number of extension mouth 2 is 2, the knot obtained to 2 remainders
Fruit is 2, so extension mouth 2 is corresponding with network interface 2, sw_netdev2->Up_port=g_stnetdev [1].And so on,
It is corresponding with network interface 1 to extend mouth 3, extension mouth 4 is corresponding with network interface 2, and extension mouth 5 is corresponding with network interface 1.
Model split VLAN by each extension mouth according to port_number+x, and will extension mouth and corresponding upper united mouth
It is divided into the VLAN, and VLAN-ID is preserved into corresponding pointer sw_netdev, for example, extension mouth 1 is corresponding
VLAN-ID is sw_netdev1->VlanId=vlanId1.
When exchange chip initializes, configuration supports double label (vlan_tag) patterns and defines outer layer mark for each VLAN
Label, such as：0x9300.
The poll network equipment (the sw_netdev- corresponding with each extension mouth when system receives message>Up_port on)
The reception message function of carry, divests the outer layer label carried in message after the network equipment receives message, while by message
Corresponding extension mouth preserves in messages, and message then is transmitted up protocol stack and is handled.
Corresponding outer layer label (sw_netdev- is taken out according to the extension mouth preserved in message when system sends message>
VlanId the outer layer label), and for message is stamped, then according to the corresponding network equipment (sw_netdev- of extension mouth>up_
Port the message of carry sends function and sends message on).
The network interface of the network equipment is extended by the extension mouth of exchange chip in the present embodiment, reaches extension net
Network interface, the purpose for increasing interface density, while each extension mouth is divided into independent VLAN and by virtual network card equipment interface
Registered, to it is external see it is each by exchange chip extension mouth be independent network interface, can independently issue configuration and receive and dispatch message.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (10)
- A kind of 1. method of extended network interface, it is characterised in that described method includes following steps：Step S1, by the extension mouth of exchange chip layout and saving interface number, and registered by virtual network card equipment in order, Set the interface name externally shown；Step S2, sets the upper united mouth of the extension mouth and the extension mouth, the network of the network equipment to connect according to the interface number The correspondence of mouth, and preserve the correspondence；Step S3, corresponds to the corresponding VLAN of the virtual network card equipment, root according to the interface name by the extension mouth It is according to the correspondence that the upper united mouth of the extension mouth, network interface is corresponding with the VLAN, and preserve the VLAN's VLAN-ID；Step S4, exchange chip configures double label modes according to the VLAN-ID, and sets outer layer label.
- 2. according to the method described in claim 1, it is characterized in that, before the step S1, further include：Step S00, network device registration network interface, the network interface carry interface handle function, the network interface Pointer is stored in global variable array, and the network interface after registering is hidden state；Step S01, the network equipment are connected with the upper united mouth of exchange chip.
- 3. according to the method described in claim 2, it is characterized in that, interface processing function includes at least：Receive message letter Number, the closing function for opening function and the network equipment for sending message function, the network equipment.
- 4. according to the method described in claim 3, it is characterized in that, after the step S1, further include：Step S11, extends mouth for the extension mouth carry and handles function, the extension mouth processing function includes at least：Connect shape State scanning function and speed duplex set function.
- 5. according to the method described in claim 4, it is characterized in that, the method further includes：The extension mouth of exchange chip is registered as into virtual network card equipment, and is corresponded with VLAN；The exchange chip passes through upper Connection mouth is connected with the network interface of the network equipment；When receiving message, the reception message letter of carry on the exchange chip poll network interface corresponding with each extension mouth Number, determines that one is used to forward the extension mouth of the message and sends the message to identified extension mouth；Extension mouth divests the outer layer label carried in message after receiving message determined by described, while the message is corresponded to Extension message breath preserve in messages, then message is transmitted up into protocol stack and is handled.
- 6. according to the method described in claim 5, it is characterized in that, the method further includes：Corresponding outer layer label is taken out according to the extension message breath preserved in message when sending message, and is stamped for message outside described Layer label, then sends function according to the message of carry on the corresponding network equipment of extension mouth and sends message.
- A kind of 7. system of extended network interface, it is characterised in that the system comprises：Mouth registration module is extended, for by the extension mouth of exchange chip layout and saving interface number, and press Microsoft Loopback Adapter in order Equipment is registered, and sets the interface name externally shown；Network interface adaptation module, for setting upper united mouth, the net of the extension mouth and the extension mouth according to the interface number The correspondence of the network interface of network equipment, and preserve the correspondence；VLAN adaptation modules, it is corresponding for the extension mouth to be corresponded to the virtual network card equipment according to the interface name VLAN, it is according to the correspondence that the extension upper united mouth of mouth, network interface is corresponding with the VLAN, and preserve institute State the VLAN-ID of VLAN；Outer layer label setup module, for configuring double label modes according to the VLAN-ID, and sets outer layer label.
- 8. system according to claim 7, it is characterised in that the system also includes：Network device management module, is used for For network device registration network interface, for the network interface carry respective handling function after registration, and by the pointer of network interface It is stored in global variable array；The processing function includes at least：Receive message function, send message function, the network equipment The closing function for opening function and the network equipment.
- 9. system according to claim 7, it is characterised in that the extension mouth registration module is additionally operable to as the extension mouth Carry extension mouth processing function, the extension mouth processing function include at least：Connection status scanning function and speed duplex are set Function.
- 10. system according to any one of claims 7 to 9, it is characterised in that the extension mouth registration module is exchanging core The registration of mouth is extended when piece initializes according to the number of ports for being actually needed extension.
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| CN106533700B (en) * | 2016-10-31 | 2021-03-02 | 新华三技术有限公司 | Method and device for realizing interface function |
| CN108270638B (en) * | 2017-01-03 | 2022-10-28 | 中兴通讯股份有限公司 | Error correction method and device based on internet access transmission and internet access transmission equipment |
| CN111083073B (en) * | 2019-12-31 | 2022-03-11 | 北京华环电子股份有限公司 | Interface extension method of Ethernet switch equipment |
| CN113965456A (en) * | 2021-08-30 | 2022-01-21 | 广州文远知行科技有限公司 | Host interface expanding method, device, equipment and storage medium |
| CN114430392A (en) * | 2022-01-26 | 2022-05-03 | 福州创实讯联信息技术有限公司 | Method and terminal for connecting Intel network card with Switch to expand internet access |
| CN115801710B (en) * | 2023-01-10 | 2023-04-21 | 北京六方云信息技术有限公司 | CPU interface expansion method, device, equipment and storage medium |
| CN115941629A (en) * | 2023-02-22 | 2023-04-07 | 江西联创精密机电有限公司 | Network port expansion method, system, equipment and storage medium based on ARM platform |
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