CN107342940A - The generation method and device and message processing method and device of a kind of control information - Google Patents
The generation method and device and message processing method and device of a kind of control information Download PDFInfo
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- CN107342940A CN107342940A CN201610285708.5A CN201610285708A CN107342940A CN 107342940 A CN107342940 A CN 107342940A CN 201610285708 A CN201610285708 A CN 201610285708A CN 107342940 A CN107342940 A CN 107342940A
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- message
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- control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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Abstract
The embodiment of the invention discloses a kind of generation method of control information and device and message processing method and device, the generation method of control information is applied to server, including：The user profile of terminal is obtained, wherein, user profile includes：MAC Address, IP address and pppoe session mark；After PPP connections are established between server and terminal, user profile is sent to by controller by the first control passage, so that controller generates subscriber control information according to user profile, and subscriber control information is sent to by forwarding unit by the second control passage.Using technical scheme provided in an embodiment of the present invention, the flexibility of message handling system is increased.
Description
Technical field
The present invention relates to communication technical field, the generation method and device and report of more particularly to a kind of control information
Literary processing method and processing device.
Background technology
At present, usually using BRAS (Broadband Remote Access Server, broad band remote access clothes
It is engaged in device) building network, the message that terminal room communicates in network is all to be responsible for processing by BRAS.Specifically,
BRAS is generated according to the information of the terminal of access network and is stored user control table, according to the user control table
The message received is handled.BRAS needs to generate user control table, it is also necessary to is controlled according to the user
Tabulation processing message, this causes system all underactions of whole message handling system.
The content of the invention
The embodiment of the invention discloses a kind of generation method of control information and device and message processing method and dress
Put, to increase the flexibility of message handling system.
To reach above-mentioned purpose, the embodiment of the invention discloses a kind of generation method of control information, it is applied to
Server, methods described include：
The user profile of terminal is obtained, wherein, the user profile includes：MAC Address, IP address and PPPoE
Session identification；
After PPP connections are established between the server and the terminal, by the first control passage by the use
Family information is sent to controller, so that the controller generates subscriber control information according to the user profile,
And the subscriber control information is sent to by forwarding unit by the second control passage.
Optionally, the user profile for obtaining terminal, including：
The MAC Address is obtained in any message sent from the terminal received；
The pppoe session obtained between the terminal of discovery phase distribution and the server identifies；
Obtain in the IP address that negotiation phase is the terminal distribution.
Optionally, the subscriber control information includes：MAC Address, IP address, pppoe session mark and
Port-mark.
To reach above-mentioned purpose, the embodiment of the invention also discloses a kind of message processing method, applied to forwarding
Equipment, methods described include：
Receive the first message；
If first message carrys out the PPPoE data messages of self terminal or first message carrys out automatic network
The IP messages of side, judge user profile that first message carries whether with the subscriber control information that prestores
Matching, wherein, the subscriber control information includes：MAC Address, IP address, pppoe session mark and
Port-mark；
If matching, the second message is obtained according to first message, and send second message.
Optionally, when first message is the message that terminal is sent, methods described also includes：
Judge whether first message includes PPPoE data message feature fields；
If it is, judge that first message is PPPoE data messages；
It is described judge user profile that first message carries whether with the subscriber control information that prestores
Match somebody with somebody, including：
Judge source MAC, source IP address, source pppoe session mark and source that first message carries
Whether port-mark matches with the subscriber control information；
If it is, judge that the user profile that first message carries matches with the subscriber control information；
It is described that second message is obtained according to first message, and second message is sent, including：
First message is decapsulated, removes PPPoE heads, the second message is obtained and sends.
Optionally, when judging that obtaining first message does not include PPPoE data message feature fields, or work as
Source MAC, source IP address, source pppoe session mark and the source port mark that first message carries
When not matched with the subscriber control information, methods described also includes：
First message is transmitted to by server by the double layer network data channel pre-established.
Optionally, it is described to judge first message when first message is the IP messages from network side
Whether the user profile of carrying matches with the subscriber control information prestored, including：
Judge the purpose IP address of the first message carrying whether in the subscriber control information prestored；
If it is, judge that the user profile that first message carries matches with the subscriber control information；
It is described that second message is obtained according to first message, and second message is sent, including：
According to the purpose IP address, target MAC (Media Access Control) address, purpose are obtained from the subscriber control information
Pppoe session identifies and destination interface mark；
Identified according to the target MAC (Media Access Control) address, purpose pppoe session mark and the destination interface,
PPPoE heads are encapsulated for first message, obtain the second message, and second message is sent from destination interface.
Optionally, when first message is the PPPoE messages from server, methods described also includes：
Described in being searched from two layer MAC address table corresponding to the double layer network switching domain belonging to first message
Target MAC (Media Access Control) address corresponding to the purpose IP address that first message carries, and turned according to the target MAC (Media Access Control) address
Send out the first message described.
To reach above-mentioned purpose, the embodiment of the invention also discloses a kind of generating means of control information, application
In server, described device includes：
Information acquisition unit, for obtaining the user profile of terminal, wherein, the user profile includes：MAC
Address, IP address and pppoe session mark；
Information transmitting unit, after PPP connections are established between the server and the terminal, pass through
The user profile is sent to controller by one control passage, so that the controller is according to the user profile
Subscriber control information is generated, and the subscriber control information is sent to by forwarding unit by the second control passage.
Optionally, described information acquiring unit, it is specifically used for：
The MAC Address is obtained in any message sent from the terminal received；
The pppoe session obtained between the terminal of discovery phase distribution and the server identifies；
Obtain in the IP address that negotiation phase is the terminal distribution.
Optionally, the subscriber control information includes：MAC Address, IP address, pppoe session mark and
Port-mark.
To reach above-mentioned purpose, the embodiment of the invention also discloses a kind of message process device, applied to forwarding
Equipment, described device include：
Message receiving unit, for receiving the first message；
Information judging unit, if carrying out the PPPoE data messages or described of self terminal for first message
Whether one message is the IP messages from network side, judge the user profile of the first message carrying with depositing in advance
The subscriber control information matching of storage, wherein, the subscriber control information includes：MAC Address, IP address,
Pppoe session identifies and port-mark；
Packet sending unit, in the case of being in described information judging unit judged result, according to institute
State the first message and obtain the second message, and send second message.
Optionally, when first message is the message that terminal is sent, described device also includes：
Field judging unit, for judging whether first message includes PPPoE data message feature fields；
If it is, judge that first message is PPPoE data messages；
Described information judging unit, is specifically used for：
Judge source MAC, source IP address, source pppoe session mark and source that first message carries
Whether port-mark matches with the subscriber control information；If it is, judge the use that first message carries
Family information matches with the subscriber control information；
The packet sending unit, is specifically used for：
First message is decapsulated, removes PPPoE heads, the second message is obtained and sends.
Optionally, described device also includes：
Message retransmission unit, for not including PPPoE data message tagged words when judgement obtains first message
Duan Shi, or when first message carry source MAC, source IP address, source pppoe session mark and
When source port mark does not match with the subscriber control information, pass through the double layer network data channel pre-established
First message is transmitted to server.
Optionally, when first message is the IP messages from network side, described information judging unit, tool
Body is used for：
Judge the purpose IP address of the first message carrying whether in the subscriber control information prestored；If
It is yes, judges that the user profile that first message carries matches with the subscriber control information；
The packet sending unit, is specifically used for：
According to the purpose IP address, target MAC (Media Access Control) address, purpose are obtained from the subscriber control information
Pppoe session identifies and destination interface mark；
Identified according to the target MAC (Media Access Control) address, purpose pppoe session mark and the destination interface,
PPPoE heads are encapsulated for first message, obtain the second message, and second message is sent from destination interface.
Optionally, when first message is the PPPoE messages from server, the message retransmission unit,
It is additionally operable to：
Described in being searched from two layer MAC address table corresponding to the double layer network switching domain belonging to first message
Target MAC (Media Access Control) address corresponding to the purpose IP address that first message carries, and turned according to the target MAC (Media Access Control) address
Send out the first message described.
Therefore in embodiments of the present invention, when generating control information, server obtains the use of terminal
Family information, wherein, user profile includes：MAC Address, IP address and pppoe session mark；In the clothes
After establishing PPP connections between business device and terminal, user profile is sent to by controller by the first control passage,
Controller generates subscriber control information according to the user profile that receives, then by the second control passage by user
Control information is sent to forwarding unit.In this case, controller is responsible for specially safeguarding in renewal forwarding unit
Subscriber control information is stored so that whole message handling system is more flexible.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
The required accompanying drawing used is briefly described in example or description of the prior art, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of the generation method of control information provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic flow sheet of message processing method provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of communication between devices process provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of the generating means of control information provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of message process device provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
Below by specific embodiment, the present invention is described in detail.
With reference to figure 1, Fig. 1 is that a kind of flow of generation method of control information provided in an embodiment of the present invention is illustrated
Figure, applied to server, this method includes：
S101：Obtain the user profile of terminal；
Here, user profile includes：MAC Address, IP address and pppoe session mark.
In a kind of implementation of the present invention, each information included in user profile can be in terminal and clothes
Different phase when business device establishes PPP connections obtains, such as：
The acquisition of MAC Address：The end is obtained in any message that server can be sent from the terminal received
The MAC Address at end；
The acquisition of pppoe session mark：In discovery phase, session that server can be between terminal and the server
Pppoe session mark is distributed, server can obtain pppoe session mark；
The acquisition of IP address：In negotiation phase, server can be the IP address of terminal distribution, and server can obtain
Take the IP address.
S102：After PPP connections are established between server and terminal, by the first control passage by user profile
It is sent to controller.
In this case, controller generates subscriber control information according to the user profile that receives, and passes through the
Subscriber control information is sent to forwarding unit by two control passages, and then forwarding unit is according to subscriber control information
Forward PPPoE data messages.
In a kind of implementation of the present invention, the message of terminal room communication is mostly PPPoE data messages, is also had
A small amount of other messages, such as protocol massages, specific message, in the embodiment of the present invention, in order to avoid all
Message is all sent by same equipment, and then requires that the equipment has higher forwarding performance, improves network cost
The problem of, PPPoE data messages are sent by forwarding unit, realize the unloading of flow.
In this case, forwarding unit is mainly responsible for the transmission of PPPoE data messages, and the message in network is more
For data message, therefore it is required that forwarding unit needs the high forwarding performance of comparison, in this case, forward
The hardware product of equipment can be used and realized based on the server of ASIC/NP frameworks, in order to ensure in network
The transmission of message.
It is noted that the first control passage is：Control sets the control passage between device and server；Second
Control passage is：Control passage between controller and forwarding unit.In one embodiment of the invention, control
Device obtains user profile by the first control passage from server, and by the second control passage to forwarding
Subscriber control information in equipment such as is added, deleted at the attended operation.Here, subscriber control information can be with
Including：MAC Address, IP address, pppoe session mark and port-mark.
In one embodiment of the invention, above-mentioned first control passage and above-mentioned second control passage can adopt
With the management interface technique construction such as Openflow, netconf, SNMP, REST API, alternatively, it is also possible to
Using other management interface technique constructions, the present invention is to this without limiting.
Using embodiment illustrated in fig. 1, when generating control information, server obtains the user profile of terminal, its
In, user profile includes：MAC Address, IP address and pppoe session mark；In the server and terminal
Between establish PPP connections after, user profile is sent to by controller by the first control passage, controller according to
The user profile generation subscriber control information received, then sent out subscriber control information by the second control passage
Give forwarding unit.In this case, controller, which is responsible for specially safeguarding in renewal forwarding unit, has stored user
Control information so that whole message handling system is more flexible.
In a kind of implementation of the present invention, forwarding unit forwards PPPoE datagrams according to subscriber control information
Text, the method for realizing flow unloading, specifically refers to Fig. 2, Fig. 2 is one kind provided in an embodiment of the present invention
The schematic flow sheet of message processing method, this method are applied to forwarding unit, including：
S201：Receive the first message；
S202：It is to come from network side that if the first message, which comes the PPPoE data messages of self terminal or first message,
IP messages, judge the first message carry user profile whether matched with the subscriber control information prestored；
If it is, perform S203；
In the PPPoE business of broadband, if the first message includes PPPoE data message feature fields, it can sentence
Fixed first message is PPPoE data messages.Specifically, PPPoE data messages feature field can be：
EtheretType=0x8864, PPPoE Code=0x00, PPP protocol=0x21.
In one embodiment of the invention, the subscriber control information can be stored in user control table, with
It is easy to forwarding unit quickly to obtain information from the user control table, and is controlled according to the information of acquisition
The transmission of message.
S203：Second message is obtained according to the first message, and sends the second message.
In a kind of implementation of the present invention, when the first message carrys out the PPPoE data messages of self terminal,
S202 is specially：
S2021, judge the first message carry source MAC, source IP address, source pppoe session mark and
Source port identifies whether to match with subscriber control information, if it is, performing S2022；
S2022, judge that the user profile that the first message carries matches with subscriber control information.
In this case, S203 is specially：
The first message is decapsulated, removes PPPoE heads, IP messages is obtained, is further searched in three-layer routing table
The information such as purpose P address, target MAC (Media Access Control) address, and the IP messages are sent to by network according to the information found
Side.Here, IP messages are above-mentioned second message.
In the implementation of the present invention, the terminal for accessing network is at real-time change, current time
First terminal accesses network, and perhaps the subsequent time first terminal will exit network, therefore, it is necessary in real time
Subscriber control information is updated, specifically, can be included：
S11, the first user profile of first terminal is sent to server by double layer network data channel, with
Make server that the first user profile are sent into controller by the first control passage pre-established；
Here, forwarding unit is established with server and communicated to connect, and forwarding unit is established with first terminal and communicated
Connection, this communication connection, it is substantially：Server communicates to connect with first terminal.
It is noted that first terminal, forwarding unit and service equipment belong to same Layer 2 -switched domain, this
When sample server communicates with first terminal, two layer net of the forwarding unit can according to belonging to the message received
The message received is transmitted to same two layers of net by the information in two layer MAC address table corresponding to network switching domain
The equipment of network switching domain, realize the interaction of message between first terminal and server.In addition, forwarding is set
Standby to be connected with server by the Layer 2 data tunneling traffic pre-established, forwarding unit can pass through message
The double layer channel is forwarded to server, Layer 2 data passage mentioned here can use VLAN, VxLAN,
Various two layers of networking technology structures such as L2OverGRE, MPLS L2VPN, can also use other two layers of groups
Network technology is built, and the present invention is to this without limiting.
In addition, the first user profile can include：Belonging to the source MAC of first terminal, the first terminal
The information such as mark of source port used by VLAN mark and the first terminal communicate with forwarding unit.This
In, the first user profile is more detailed, and controller is directed to the first terminal according to what first user profile generated
The first subscriber control information and after being sent to forwarding unit, be more easy to forwarding unit to be controlled according to first user
Information processed controls the message that the first terminal is sent and the message sent to the first terminal.
S12, the first subscriber control information that controller is sent by the second control passage is received, and according to first
Subscriber control information updates subscriber control information.
Specifically, PPP connections are established between first terminal and server, that is to say, that first terminal access network
After network, the first user profile of the first terminal that controller is sent according to server by the first control passage
The first subscriber control information is generated, user's control of first subscriber control information for addition for first terminal
First subscriber control information is sent to forwarding unit by information, controller by the second control passage, forwarding
Equipment stores first subscriber control information into the subscriber control information prestored, is set in order to forward
It is standby to control first terminal to send message according to the subscriber control information；In first terminal is connected with server PPP
To have no progeny, controller will receive the first user profile for first terminal of server transmission again, according to
First user profile generates the first subscriber control information, and first subscriber control information is deleted and stored
First subscriber control information, controller control forwarding unit by the first subscriber control information from subscriber control information
Middle deletion；In addition, when the user profile of first terminal changes, controller can also control forwarding to set
It is standby to update its first subscriber control information stored.It is this to be responsible for safeguarding that renewal turns specially by controller
The subscriber control information stored in hair equipment so that whole message handling system is more flexible.
In order to preferably control the forwarding of message, its subscriber control information stored needs to include forwarding unit：
The mark for the port that first terminal communicates with forwarding unit, but first may not included in the first user profile
The mark for the port that terminal communicates with forwarding unit, in this case, above-mentioned S12 can include：
S121, receive the port-mark for the first terminal that controller is sent by the second control passage
Obtain instruction；
S122, the source MAC according to the first terminal included in port-mark acquisition instruction, from two layers
Source port mark is obtained in mac address table, and source port is identified control is sent to by the second control passage
Device, to cause first subscriber control information of the controller according to the generation of source port mark for first terminal；
Specifically, controller receive source port mark after, according to the source port mark and the first user profile,
The first subscriber control information is generated, and first subscriber control information is sent to forwarding unit.
S123, receive the first subscriber control information that controller is sent by the second control passage；
S124, the subscriber control information prestored according to the renewal of the first subscriber control information.
In another implementation, if not including the mark of port in the first user profile, above-mentioned S12 can be wrapped
Include：
S125, the first subscriber control information that controller is sent by the second control passage is received, wherein, should
Do not include source port in first subscriber control information to identify；
S126, the source MAC according to the first terminal included in the first subscriber control information, from two layers
Source port mark is obtained in mac address table, and is used according to source port mark and the renewal of the first subscriber control information
Family control information.
Specifically, the first user profile received is sent to and turned by controller as the first subscriber control information
Equipment is sent out, forwarding unit finds first subscriber control information after first subscriber control information is received
In do not include source port identify, then according to the source MAC included in first subscriber control information at two layers
Source port mark is obtained in mac address table, and source port mark is filled to first subscriber control information
In, update subscriber control information further according to first subscriber control information after filling.
In one embodiment of the invention, when the first message is the message that terminal is sent, if the first report
Do not include PPPoE data message feature fields in text, or the first message carry source MAC, source IP
Location, source pppoe session mark and source port mark do not match with subscriber control information, pass through double layer network data
First message is transmitted to server by passage.Server is handled first message, is obtained and is sent
Two messages.
Here, server can be connected with multiple forwarding units by double layer network data channel communication, and it is negative
Duty concentrate send the message from each forwarding unit, and its send message for non-data message and comprising
Source MAC and the unmatched message of subscriber control information, this message are a small number of messages, therefore to clothes
The forwarding performance of business device requires relatively low.In addition, server is also responsible for management terminal access network, summary
Two factors, its hardware product can not use BRAS to realize, but use the service based on x86 frameworks
Device realizes that here, server based on x86 frameworks has the ability of preferable management terminal access network,
And the forwarding capability with double layer network and three-layer network, it can concentrate and send the report from each forwarding unit
Text, and then saved the cost of networking.
In one embodiment of the invention, forwarding unit not only needs processing to carry out the message of self terminal, also needs
Handle the message from network side.Specifically, when the first message is the IP messages from network side, S202
Specially：
S2023, judge the purpose IP address of the first message carrying whether in the subscriber control information prestored
In, if it is, performing S2024；
S2024, judge that the user profile that the first message carries matches with subscriber control information.
In this case, S203 is specially：
S2031, according to purpose IP address, target MAC (Media Access Control) address, purpose PPPoE are obtained from subscriber control information
Session identification and destination interface mark；
S2032, according to target MAC (Media Access Control) address, purpose pppoe session mark and destination interface identify, be first
Message encapsulates PPPoE heads, obtains the second message, and send the second message from destination interface.
Specifically, purpose IP address is carried in the first message, if first message is the IP messages from network side
When, forwarding unit can obtain control information corresponding with purpose IP address from subscriber control information, such as：Mesh
MAC Address, purpose pppoe session mark and destination interface mark etc., if finding, can be should
First message encapsulates PPPoE heads, obtains the second message, and being sent from destination interface corresponding to destination interface mark should
Second message.
In a kind of implementation of the present invention, if not found and purpose IP address pair from subscriber control information
The control information answered, Yi Zhongshi：Directly first packet loss is fallen；Another kind is to retain one section of duration
First message, can so avoid purpose terminal because temporarily with server interrupt communicate to connect, control
Device deletes the subscriber control information of the purpose terminal from the subscriber control information of forwarding unit, and causes mesh
Terminal the problem of can not receiving first message in time.If in addition, more than duration is retained, still can not be from
Control information corresponding with destination address is found in subscriber control information, then first packet loss is fallen,
To avoid excessive message from caching or be stored in forwarding unit for a long time, the Message processing of forwarding unit is influenceed
Energy.
In one embodiment of the invention, when the first message is what server was sent by Layer 2 data passage
During PPPoE messages, from two layer MAC address table corresponding to the double layer network switching domain belonging to first message
Target MAC (Media Access Control) address corresponding to the purpose IP address of the first message carrying is searched, and is turned according to target MAC (Media Access Control) address
Send out the first message.
In one embodiment of the invention, multiple terminals, multiple forwarding units, more can be included in network
Individual server and multiple controllers, with reference to an example, only with included in network a terminal, one turn
The communication process of equipment room is illustrated exemplified by hair equipment, a server and a controller.
With reference to figure 3, Fig. 3 is a kind of schematic diagram of communication between devices process provided in an embodiment of the present invention, the width
301, one, a terminal server 303 of forwarding unit 302, one and a control are included in band PPPoE business
Device 304 processed.Specifically, the communication between terminal 301, forwarding unit 302, server 303 and controller 304
Journey can be divided into 2 stages：Discovery phase and session stage：
Discovery phase：
Terminal 301 sends a PADI message to forwarding unit 302, can be included in the PADI messages：The end
The service type information that end 301 needs；When there is multiple forwarding units to be communicated to connect with the terminal 301, the end
End 301 is to communicating with each forwarding unit broadcast transmission of connection PADI messages；
After forwarding unit 302 receives the PADI messages, the PADI messages are transmitted to server 303；
After server 303 receives the PADI messages, by the service type information included in the PADI messages and
The access service type information that itself can be provided is compared, if it does, sending one to forwarding unit 302
Individual PADO messages, then the PADO messages are transmitted to terminal 301 by forwarding unit 302；
After terminal 301 receives the PADO messages, it is its PPPoE service equipment to determine server 303, and to
Forwarding unit 302 sends a PADR message；In addition, if terminal 301 receives multiple PADO messages,
Server 303 corresponding to the PIDO messages being initially received is defined as its PPPoE server；
After forwarding unit 302 receives the PADR messages, the PADR messages are transmitted to server 303；
Server 303 generates a pppoe session to be conversated with the terminal 301 according to the PADR messages
Mark, pppoe session mark are unique, then send one to forwarding unit 302 and carry the PPPoE
The PADS messages of session identification, then the PADS messages are transmitted to terminal 301 by forwarding unit 302；
After terminal 301 receives the PADS messages, identified according to the pppoe session carried in the PADS messages,
Session is established with server 303, discovery phase terminates；
Session stage：The stage can be subdivided into LCP negotiation phases, authentication phase, ipcp negotiation stage again
And data transfer phase；
LCP negotiation phases：Configuring request message, configure-ack/negative/refusal report are forwarded by forwarding unit 302
Text, complete foundation, configuration and the detection of link connection between terminal 301 and server 303；
Authentication phase：Terminal 301 forwards ID authentication request message by forwarding unit 302 to server 303；
Server 303 goes the identity of AAA system certification terminal 301, and sends identity validation report to forwarding unit 302
Text, then identity validation message is transmitted to terminal 301 by forwarding unit 302；
The ipcp negotiation stage：Configuring request message, configure-ack/negative/refusal are forwarded by forwarding unit 302
Message, it is the network layer protocols such as the configuration of IP of terminal 301 and DNS；
Data transfer phase：In authentication phase, server 303 obtains the identity information (user of terminal 301
Information), in this stage, the identity information of terminal 301 is sent to controller 304, controller by server 303
304 generate subscriber control information according to identity information, and are sent to forwarding unit 302；Forwarding unit 302 is connecing
After the PPPoE data messages for receiving the transmission of terminal 301, according to subscriber control information and PPPoE data messages,
Message is sent to network.
In this case, the PPPoE data messages that terminal 301 is sent, carried in the PPPoE data messages
In the case that user profile matches with subscriber control information, forwarding unit 302 obtains according to the PPPoE data messages
IP messages are obtained, are concurrently sent to network, without PPPoE data messages are sent into server 303, are completed
The unloading of flow.
In addition, server 303 can also retain the function of forwarding and processing message.If the report that terminal 301 is sent
Text is the protocol massages such as PADI messages, or the message that terminal 301 is sent is the user profile and user's control carried
The message received is sent to server 303, server 303 by the unmatched message of information, forwarding unit 302
Message is received, handles or forward the message.This can both be unloaded by forwarding unit 302 E-Packets, and also may be used
To handle the framework of message by server 303 so that Message processing process is more flexible.
Using above-mentioned each embodiment, when handling message, forwarding unit is responsible for sending datagram, and carries out
Flow unloads, and forwarding unit by non-data message and comprising information and the subscriber control information that prestores
Unmatched low volume data message is transmitted to server, by server process.Forwarding unit is responsible for the number sent
Occupied the majority according to message, and the message that server is responsible for processing occupies the minority, so, in actual building network,
Consider the demand of forwarding unit and server process message, individually plan forwarding unit and server, save
The cost of networking.
With reference to figure 4, Fig. 4 is a kind of structural representation of the generating means of control information provided in an embodiment of the present invention
Figure, applied to server, the device includes：
Information acquisition unit 401, for obtaining the user profile of terminal, wherein, the user profile includes：
MAC Address, IP address and pppoe session mark；
Information transmitting unit 402, after PPP connections are established between the server and the terminal, lead to
Cross the first control passage and the user profile is sent to controller, so that the controller is according to the user
Information generates subscriber control information, and the subscriber control information is sent into forwarding by the second control passage
Equipment.
In a kind of implementation of the present invention, information acquisition unit 401, it is specifically used for：
The MAC Address is obtained in any message sent from the terminal received；
The pppoe session obtained between the terminal of discovery phase distribution and the server identifies；
Obtain in the IP address that negotiation phase is the terminal distribution.
In a kind of implementation of the present invention, the subscriber control information includes：MAC Address, IP address,
Pppoe session identifies and port-mark.
Using embodiment illustrated in fig. 4, when generating control information, server obtains the user profile of terminal, its
In, user profile includes：MAC Address, IP address and pppoe session mark；In the server and terminal
Between establish PPP connections after, user profile is sent to by controller by the first control passage, controller according to
The user profile generation subscriber control information received, then sent out subscriber control information by the second control passage
Give forwarding unit.In this case, controller, which is responsible for specially safeguarding in renewal forwarding unit, has stored user
Control information so that whole message handling system is more flexible.
In a kind of implementation of the present invention, forwarding unit forwards PPPoE datagrams according to subscriber control information
Text, realize that the device of flow unloading refers to Fig. 5, Fig. 5 is a kind of Message processing provided in an embodiment of the present invention
The structural representation of device, the device are applied to forwarding unit, including：
Message receiving unit 501, for receiving the first message；
Information judging unit 502, if coming PPPoE data messages or the institute of self terminal for first message
It is the IP messages from network side to state the first message, judge user profile that first message carries whether with advance
The subscriber control information matching first stored, wherein, the subscriber control information includes：MAC Address, IP
Location, pppoe session mark and port-mark；
Packet sending unit 503, in the case of being in the judged result of described information judging unit 502,
Second message is obtained according to first message, and sends second message.
In one embodiment of the invention, it is above-mentioned when first message is the message that terminal is sent
Message process device can also include：
Field judging unit, for judging whether first message includes PPPoE data message feature fields；
If it is, judge that first message is PPPoE data messages (not shown in Fig. 5)；
Described information judging unit 502, is specifically used for：
Judge source MAC, source IP address, source pppoe session mark and source that first message carries
Whether port-mark matches with the subscriber control information；If it is, judge the use that first message carries
Family information matches with the subscriber control information；
The packet sending unit 503, is specifically used for：
First message is decapsulated, removes PPPoE heads, the second message is obtained and sends.
In one embodiment of the invention, described device also includes：
Message retransmission unit, for not including PPPoE data message tagged words when judgement obtains first message
Duan Shi, or when first message carry source MAC, source IP address, source pppoe session mark and
When source port mark does not match with the subscriber control information, pass through the double layer network data channel pre-established
First message is transmitted to server (not shown in Fig. 5).
In one embodiment of the invention, when first message is the IP messages from network side, institute
Information judging unit 502 is stated, is specifically used for：
Judge the purpose IP address of the first message carrying whether in the subscriber control information prestored；If
It is yes, judges that the user profile that first message carries matches with the subscriber control information；
The packet sending unit 503, is specifically used for：
According to the purpose IP address, target MAC (Media Access Control) address, purpose are obtained from the subscriber control information
Pppoe session identifies and destination interface mark；
Identified according to the target MAC (Media Access Control) address, purpose pppoe session mark and the destination interface,
PPPoE heads are encapsulated for first message, obtain the second message, and second message is sent from destination interface.
In one embodiment of the invention, when first message is the PPPoE messages from server
When, the message retransmission unit, it is additionally operable to：
Described in being searched from two layer MAC address table corresponding to the double layer network switching domain belonging to first message
Target MAC (Media Access Control) address corresponding to the purpose IP address that first message carries, and turned according to the target MAC (Media Access Control) address
Send out the first message described.
Using above-mentioned each embodiment, when handling message, forwarding unit is responsible for sending datagram, and carries out
Flow unloads, and forwarding unit by non-data message and comprising information and the subscriber control information that prestores
Unmatched low volume data message is transmitted to server, by server process.Forwarding unit is responsible for the number sent
Occupied the majority according to message, and the message that server is responsible for processing occupies the minority, so, in actual building network,
Consider the demand of forwarding unit and server process message, individually plan forwarding unit and server, save
The cost of networking.
For device embodiment, because it is substantially similar to embodiment of the method, so the comparison of description is simple
Single, the relevent part can refer to the partial explaination of embodiments of method.
It should be noted that herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these
Any this actual relation or order be present between entity or operation.Moreover, term " comprising ", "comprising"
Or any other variant thereof is intended to cover non-exclusive inclusion, so that the mistake including a series of elements
Journey, method, article or equipment not only include those key elements, but also other including being not expressly set out
Key element, or also include for this process, method, article or the intrinsic key element of equipment.Do not having
In the case of more limitations, the key element that is limited by sentence "including a ...", it is not excluded that including it is described will
Other identical element also be present in the process of element, method, article or equipment.
One of ordinary skill in the art will appreciate that realize all or part of step in above method embodiment
It is that by program the hardware of correlation can be instructed to complete, described program can be stored in computer-readable
Take in storage medium, the storage medium designated herein obtained, such as：ROM/RAM, magnetic disc, CD etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
Any modification, equivalent substitution and improvements made within the spirit and principles of the invention etc., are all contained in
In protection scope of the present invention.
Claims (16)
1. a kind of generation method of control information, it is characterised in that applied to server, methods described includes：
The user profile of terminal is obtained, wherein, the user profile includes：MAC Address, IP address and PPPoE
Session identification；
After PPP connections are established between the server and the terminal, by the first control passage by the use
Family information is sent to controller, so that the controller generates subscriber control information according to the user profile,
And the subscriber control information is sent to by forwarding unit by the second control passage.
2. according to the method for claim 1, it is characterised in that the user profile for obtaining terminal,
Including：
The MAC Address is obtained in any message sent from the terminal received；
The pppoe session obtained between the terminal of discovery phase distribution and the server identifies；
Obtain in the IP address that negotiation phase is the terminal distribution.
3. according to the method for claim 1, it is characterised in that the subscriber control information includes：MAC
Address, IP address, pppoe session mark and port-mark.
4. a kind of message processing method, it is characterised in that applied to forwarding unit, methods described includes：
Receive the first message；
If first message carrys out the PPPoE data messages of self terminal or first message carrys out automatic network
The IP messages of side, judge user profile that first message carries whether with the subscriber control information that prestores
Matching, wherein, the subscriber control information includes：MAC Address, IP address, pppoe session mark and
Port-mark；
If matching, the second message is obtained according to first message, and send second message.
5. according to the method for claim 4, it is characterised in that when first message sends for terminal
Message when, methods described also includes：
Judge whether first message includes PPPoE data message feature fields；
If it is, judge that first message is PPPoE data messages；
It is described judge user profile that first message carries whether with the subscriber control information that prestores
Match somebody with somebody, including：
Judge source MAC, source IP address, source pppoe session mark and source that first message carries
Whether port-mark matches with the subscriber control information；
If it is, judge that the user profile that first message carries matches with the subscriber control information；
It is described that second message is obtained according to first message, and second message is sent, including：
First message is decapsulated, removes PPPoE heads, the second message is obtained and sends.
6. according to the method for claim 5, it is characterised in that when judgement obtains first message not
During comprising PPPoE data message feature fields, or when first message carry source MAC, source IP
When address, source pppoe session mark and source port mark do not match with the subscriber control information, methods described
Also include：
First message is transmitted to by server by the double layer network data channel pre-established.
7. according to the method for claim 4, it is characterised in that when first message is to carry out automatic network
During the IP messages of side, whether the user profile for judging that first message carries is controlled with the user prestored
Information matches processed, including：
Judge the purpose IP address of the first message carrying whether in the subscriber control information prestored；
If it is, judge that the user profile that first message carries matches with the subscriber control information；
It is described that second message is obtained according to first message, and second message is sent, including：
According to the purpose IP address, target MAC (Media Access Control) address, purpose are obtained from the subscriber control information
Pppoe session identifies and destination interface mark；
Identified according to the target MAC (Media Access Control) address, purpose pppoe session mark and the destination interface,
PPPoE heads are encapsulated for first message, obtain the second message, and second message is sent from destination interface.
8. according to the method for claim 4, it is characterised in that when first message is from service
During the PPPoE messages of device, methods described also includes：
Described in being searched from two layer MAC address table corresponding to the double layer network switching domain belonging to first message
Target MAC (Media Access Control) address corresponding to the purpose IP address that first message carries, and turned according to the target MAC (Media Access Control) address
Send out the first message described.
9. a kind of generating means of control information, it is characterised in that applied to server, described device includes：
Information acquisition unit, for obtaining the user profile of terminal, wherein, the user profile includes：MAC
Address, IP address and pppoe session mark；
Information transmitting unit, after PPP connections are established between the server and the terminal, pass through
The user profile is sent to controller by one control passage, so that the controller is according to the user profile
Subscriber control information is generated, and the subscriber control information is sent to by forwarding unit by the second control passage.
10. device according to claim 9, it is characterised in that described information acquiring unit is specific to use
In：
The MAC Address is obtained in any message sent from the terminal received；
The pppoe session obtained between the terminal of discovery phase distribution and the server identifies；
Obtain in the IP address that negotiation phase is the terminal distribution.
11. device according to claim 9, it is characterised in that the subscriber control information includes：MAC
Address, IP address, pppoe session mark and port-mark.
12. a kind of message process device, it is characterised in that applied to forwarding unit, described device includes：
Message receiving unit, for receiving the first message；
Information judging unit, if carrying out the PPPoE data messages or described of self terminal for first message
Whether one message is the IP messages from network side, judge the user profile of the first message carrying with depositing in advance
The subscriber control information matching of storage, wherein, the subscriber control information includes：MAC Address, IP address,
Pppoe session identifies and port-mark；
Packet sending unit, in the case of being in described information judging unit judged result, according to institute
State the first message and obtain the second message, and send second message.
13. device according to claim 12, it is characterised in that when first message is sent out for terminal
During the message sent, described device also includes：
Field judging unit, for judging whether first message includes PPPoE data message feature fields；
If it is, judge that first message is PPPoE data messages；
Described information judging unit, is specifically used for：
Judge source MAC, source IP address, source pppoe session mark and source that first message carries
Whether port-mark matches with the subscriber control information；If it is, judge the use that first message carries
Family information matches with the subscriber control information；
The packet sending unit, is specifically used for：
First message is decapsulated, removes PPPoE heads, the second message is obtained and sends.
14. device according to claim 13, it is characterised in that described device also includes：
Message retransmission unit, for not including PPPoE data message tagged words when judgement obtains first message
Duan Shi, or when first message carry source MAC, source IP address, source pppoe session mark and
When source port mark does not match with the subscriber control information, pass through the double layer network data channel pre-established
First message is transmitted to server.
15. device according to claim 12, it is characterised in that when first message is from net
During the IP messages of network side, described information judging unit, it is specifically used for：
Judge the purpose IP address of the first message carrying whether in the subscriber control information prestored；If
It is yes, judges that the user profile that first message carries matches with the subscriber control information；
The packet sending unit, is specifically used for：
According to the purpose IP address, target MAC (Media Access Control) address, purpose are obtained from the subscriber control information
Pppoe session identifies and destination interface mark；
Identified according to the target MAC (Media Access Control) address, purpose pppoe session mark and the destination interface,
PPPoE heads are encapsulated for first message, obtain the second message, and second message is sent from destination interface.
16. device according to claim 12, it is characterised in that when first message is from clothes
During the PPPoE messages of business device, the message retransmission unit, it is additionally operable to：
Described in being searched from two layer MAC address table corresponding to the double layer network switching domain belonging to first message
Target MAC (Media Access Control) address corresponding to the purpose IP address that first message carries, and turned according to the target MAC (Media Access Control) address
Send out the first message described.
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