CN104580021B - A kind of acquisition methods and device of collocation point link information - Google Patents
A kind of acquisition methods and device of collocation point link information Download PDFInfo
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- CN104580021B CN104580021B CN201310487633.5A CN201310487633A CN104580021B CN 104580021 B CN104580021 B CN 104580021B CN 201310487633 A CN201310487633 A CN 201310487633A CN 104580021 B CN104580021 B CN 104580021B
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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
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Abstract
The invention discloses a kind of acquisition methods and device of collocation point link information, this method includes：Gateway switch GSW constructs configuration link state advertisement Config LSA information according to the link information of collocation point, wherein, the link information includes the connection protocol type, Internet protocol IP address and port numbers of the collocation point, and the GSW is directly connected to the collocation point；The Config LSA information is sent to the interchanger SW communicated to connect with the GSW, so that the SW obtains the link information of the collocation point carried in the Config LSA information, when solving the problem of that the quantity of interchanger of the prior art in mixed networking is more obtain collocation point link information needed for heavy workload and it is cumbersome, deployment time is long, be easy error.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of the acquisition methods and device of collocation point link information.
Background technology
At present the legacy network devices in network be widely used it is general, in order to protect be directed to legacy network devices it is original
Investment, it is proposed that it had not only supported legacy network devices but also had supported the mixed networking of new network equipment, and the realization of mixed networking, then
The new network equipment in mixed networking is needed, for example, open flows（OpenFlow）Interchanger supports mixing（hybrid）Pattern.
Below by taking OpenFlow interchangers as an example, illustrate the realization process of current mixed networking.
As shown in fig.1, being configured by OpenFlow interchangers between OpenFlow collocation points and OpenFlow interchangers
Management（OF-config）Protocol interaction.According to OF-config agreements, OpenFlow interchangers can pass through Secure Shell
（Secure Shell, abbreviation SSH）Agreement, Simple Object Access Protocol（Simple Object Access Protocol, letter
Claim SOAP）, the expansible exchange agreement of block（Blocks Extensible Exchange Protocol, abbreviation BEEP）Or safety
Transport layer（Transport Layer Security, abbreviation TLS）Agreement and OpenFlow collocation points（Configuration
Point, abbreviation Config Point）It is communicated, obtains configuration information, complete the configuration of interchanger.
However before being communicated with OpenFlow collocation points by SSH agreements, SOAP, BEEP or tls protocol,
OpenFlow interchangers need first to obtain the Internet protocol of OpenFlow collocation points（Internet Protocol, abbreviation IP）Ground
The link informations such as location and port numbers.OpenFlow collocation points can be an independent network element, can also be OpenFlow controls
Device（Controller）A component part.
As shown in fig.1, OpenFlow interchangers are communicated with OpenFlow controllers by OpenFlow agreements.Root
According to the requirement of OpenFlow agreements, OpenFlow interchangers establish transmission control protocol between OpenFlow controllers
（Transmission Control Protocol, abbreviation TCP）Before connection, it is also desirable to first obtain OpenFlow controllers
IP address and port numbers.
By above-mentioned analysis it is found that after OpenFlow interchangers access network, needs to solve allocation problem, can carry
For network service.During solving allocation problem, OpenFlow interchangers need to obtain OpenFlow collocation points first
The link informations such as connection protocol type, IP address and port numbers.
And the method for solving allocation problem at present is, after the startup of OpenFlow interchangers, passes through physical port（For example,
Serial ports, network interface etc.）Computer is directly connected to OpenFlow interchangers, obtaining OpenFlow by order line or graphics mode matches
Link information a little is set, then according to the link information of acquisition, communicates with the foundation of OpenFlow collocation points, matches from OpenFlow
An acquisition configuration information is set, the configuration of OpenFlow interchangers is completed.
By the above process as can be seen that each OpenFlow interchanger in mixed networking is in the process for completing configuration
In, it is required for being based on order line or image mode by computer, obtains the link information of OpenFlow collocation points configuration.
Interchanger realizes that the process of mixed networking realizes the process of mixed networking with above-mentioned OpenFlow interchangers at present
Similar, i.e., each interchanger is required for being based on order line or image mode by computer respectively in mixed networking, obtains configuration
Therefore the link information of point configuration when the quantity of the interchanger in mixed networking is more, obtains needed for collocation point link information
Heavy workload and it is cumbersome, deployment time is long, be easy error.
Invention content
The embodiment of the present invention provides a kind of acquisition methods and device of collocation point link information, to solve in the prior art
Each interchanger is required for being based on order line or image mode by computer respectively in mixed networking, obtains collocation point configuration
Link information when the quantity of the caused interchanger in mixed networking is more, obtains the work needed for collocation point link information
Measure the problem of big and cumbersome, deployment time is long, easy error.
In a first aspect, the embodiment of the present invention provides a kind of acquisition methods of collocation point link information, including：
Gateway switch GSW constructs configuration link state advertisement Config LSA information according to the link information of collocation point,
Wherein, the link information includes connection protocol type, the addresses Internet protocol IP and the port numbers of the collocation point, the GSW
It is directly connected to the collocation point；
The Config LSA information is sent to the interchanger SW communicated to connect with the GSW, so that the SW is obtained
The link information of the collocation point carried in the Config LSA information.
With reference to first aspect, it is multiple match in the collocation point in the first possible realization method of first aspect
When setting,
The GSW constructs Config LSA information according to the link information of collocation point, specially：The GSW is according to
Multiple respective link informations of collocation point construct the Config LSA information；
It is described that the Config LSA information is sent to the SW communicated to connect with the GSW, so that the SW obtains institute
The link information of the collocation point carried in Config LSA information is stated, specially：
The Config LSA information is sent to the SW communicated to connect with the GSW, so that described in SW acquisitions
The link information of each collocation point carried in Config LSA information.
With reference to first aspect, described by the Config LSA in second of possible realization method of first aspect
Information is sent to the SW communicated to connect with the GSW, specifically includes：
Config LSA information carrying is sent in link state update LSU message and is directly connected with the GSW
The SW connect is sent so that the SW being directly connected to the GSW carries the Config LSA information in LSU message
Its own other SW being directly connected to is given, and is carried the Config LSA information in LSU message by other described SW
The other SW being directly connected to its own are sent to, until all SW with GSW communication connections receive the Config
LSA information.
With reference to first aspect, in the third possible realization method of first aspect, the collocation point is open flows
OpenFlow collocation points, the GSW and the SW are open flows OpenFlow interchangers.
With reference to first aspect or the possible realization method of any one of the above of first aspect, the 4th of first aspect the
In the possible realization method of kind, in the interchanger for being sent to the Config LSA information and being communicated to connect with the GSW
Before SW, further include：
GSW transmission datas library describes DBD message and gives the SW that the GSW is directly connected to；
Receiving link status asks LSR message, and the LSR message is the SW being directly connected to the GSW according to connecing
What the DBD message received generated and sent.
Second aspect, the embodiment of the present invention provide a kind of acquisition methods of collocation point link information, including：
Receive the configuration link state advertisement Config LSA information that gateway switch GSW is sent, the GSW and configuration
Point is directly connected to, and the link information of the collocation point is included in the Config LSA information, and the link information includes described
Connection protocol type, Internet protocol IP address and the port numbers of collocation point；
According to the link information of collocation point described in the Config LSA information acquisitions.
It is described to receive what GSW was sent in the first possible realization method of second aspect in conjunction with second aspect
Config LSA information, specifically includes：
Receive the Link State Notification LSA information that the GSW is sent；
Determine that the LSA information is Config LSA information according to the numerical value of the specific field of the LSA information.
In conjunction with second aspect, in second of possible realization method of second aspect, believed according to the Config LSA
The link information that breath obtains the collocation point specifically includes：
When carrying the link information of multiple collocation points in determining the Config LSA information, according to described
The link information of each collocation point of Config LSA information acquisitions.
Further include in the third possible realization method of second aspect in conjunction with second aspect：
The Config LSA information is sent to the SW directly connected, so as to the SW roots directly connected
It is sent to according to the link information of collocation point described in the Config LSA information acquisitions and by the Config LSA information certainly
Other SW that body is directly connected to, until all SW with GSW communication connections receive the Config LSA information；
Wherein, the Config LSA information carrying is sent in link state update LSU message.
In conjunction with second aspect, in the 4th kind of possible realization method of second aspect, the collocation point is open flows
OpenFlow collocation points, the GSW and the SW are open flows OpenFlow interchangers.
In conjunction with the possible realization method of any one of the above of second aspect or second aspect, at the 5th kind of second aspect
In possible realization method, before the Config LSA information that the reception GSW is sent, further include：
Receive the database description DBD message that the GSW is sent；
Receiving link status request LSR information and sendings are generated to the GSW according to the DBD message.
In conjunction with the third possible realization method of second aspect, in the 6th kind of possible realization method of second aspect
In, it is described the Config LSA information is sent to the SW directly connected before, further include：
Transmission data library describes DBD message to the SW directly connected；
Receiving link status asks LSR message, and the LSR message is the SW directly connected according to receiving
What the DBD message generated and sent.
The third aspect, the embodiment of the present invention provide a kind of acquisition device of collocation point link information, including：
Constructing module, for constructing configuration link state advertisement Config LSA information according to the link information of collocation point,
Wherein, the link information includes the connection protocol type, Internet protocol IP address and port numbers of the collocation point, the present apparatus with
The collocation point is directly connected to；
Sending module, for the Config LSA information to be sent to the interchanger SW communicated to connect with the present apparatus, with
The SW is set to obtain the link information of the collocation point carried in the Config LSA information.
It it is multiple match in the collocation point in the first possible realization method of the third aspect in conjunction with the third aspect
When setting, the constructing module is specifically used for constructing the Config according to the respective link information of the multiple collocation point
LSA information；
The sending module, specifically for the Config LSA information is sent to the SW communicated to connect with the present apparatus,
So that the SW obtains the link information of each collocation point carried in the Config LSA information.
In conjunction with the third aspect, in second of possible realization method of the third aspect, the sending module is specific to use
In：
Config LSA information carrying is sent in link state update LSU message and is directly connected to the present apparatus
SW so that the SW being directly connected to the present apparatus Config LSA information is carried be sent in LSU message with
Its own other SW being directly connected to, and the Config LSA information is carried by other described SW and is sent in LSU message
Its own other SW being directly connected to is given, until all SW with present apparatus communication connection receive the Config LSA and believe
Breath.
In conjunction with the third aspect, in the third possible realization method of the third aspect, the collocation point is open flows
OpenFlow collocation points, the SW are open flows OpenFlow interchangers.
In conjunction with the possible realization method of any one of the above of the third aspect or the third aspect, at the 4th kind of the third aspect
In possible realization method, the sending module is communicated to connect being sent to the Config LSA information with the present apparatus
Before interchanger SW, it is additionally operable to：
Transmission data library describes DBD message and gives the SW that the present apparatus is directly connected to；
Described device further includes：
Receiving module, it is described directly to connect with the present apparatus to ask LSR message, the LSR message for receiving link status
The SW connect generates and sends according to the DBD message received.
Fourth aspect, the embodiment of the present invention provide a kind of acquisition device of collocation point link information, including：
Receiving module, the configuration link state advertisement Config LSA information sent for receiving gateway switch GSW,
The GSW is directly connected to collocation point, and the link information of the collocation point, the connection are included in the Config LSA information
Information includes the connection protocol type, Internet protocol IP address and port numbers of the collocation point；
Acquisition module, for the link information according to collocation point described in the Config LSA information acquisitions.
In conjunction with fourth aspect, in the first possible realization method of fourth aspect, the receiving module is specific to use
In：
Receive the Link State Notification LSA information that the GSW is sent；
Determine that the LSA information is Config LSA information according to the numerical value of the specific field of the LSA information.
In conjunction with fourth aspect, in second of possible realization method of fourth aspect, the acquisition module is specific to use
In：
When carrying the link information of multiple collocation points in determining the Config LSA information, according to described
The link information of each collocation point of Config LSA information acquisitions.
Further include sending module, be used in the third possible realization method of fourth aspect in conjunction with fourth aspect：
The Config LSA information is sent to the SW directly connected, so as to the SW roots directly connected
It is sent to according to the link information of collocation point described in the Config LSA information acquisitions and by the Config LSA information certainly
Other SW that body is directly connected to, until all SW with GSW communication connections receive the Config LSA information,
In, the Config LSA information carrying is sent in link state update LSU message.
In conjunction with the third possible realization method of fourth aspect, in the 4th kind of possible realization method of fourth aspect
In, the receiving module is additionally operable to receive what the GSW was sent before the Config LSA information that the reception GSW is sent
Database description DBD message；The acquisition module is additionally operable to be disappeared according to DBD message generation receiving link status request LSR
Breath；The sending module is additionally operable to send the LSR message to the GSW.
In conjunction with the third possible realization method of fourth aspect, in the 5th kind of possible realization method of fourth aspect
In, the sending module it is described the Config LSA information is sent to the SW directly connected before, be additionally operable to：
Transmission data library describes DBD message to the SW directly connected；
The receiving module, be additionally operable to receiving link status request LSR message, the LSR message be it is described directly
The SW of connection generates and sends according to the DBD message received.
In the possible realization method of any one of the above in conjunction with fourth aspect or fourth aspect, the 6th of fourth aspect the
In the possible realization method of kind, the collocation point is open flows OpenFlow collocation points, and the GSW and the SW are open flows
OpenFlow interchangers.
In the embodiment of the present invention, gateway switch（Gateway Switch, abbreviation GSW）By the way that the connection of collocation point is believed
Breath is carried in configuration link state advertisement（Configuration Link-State Advertisement, abbreviation Config
LSA）In information, the interchanger that is sent in mixed networking（Switch, abbreviation SW）, so that it may so that SW directly passes through Config
LSA acquisition of information is connected to be established with collocation point based on the link information to the link information of collocation point, avoids each
SW, by connecting computer, and the link information based on order line or image mode acquisition collocation point, subtracts as the prior art
It is the workload for obtaining the link information of collocation point and needing to dispose to have lacked the SW in hybrid network, shortens entire hybrid network
The setup time summation of middle interchanger also avoids the case where SW configurations malfunction, improves system effectiveness.
Description of the drawings
Interaction schematic diagrames of the Fig. 1 between OpenFlow collocation points and OpenFlow interchangers；
A kind of acquisition methods flow chart for collocation point link information that Fig. 2 designs for the embodiment of the present invention；
Fig. 3 is the schematic diagram of the hybrid patterns of OpenFlow interchangers in the embodiment of the present invention；
Fig. 4 is the topological structure schematic diagram of hybrid network in the embodiment of the present invention；
Fig. 5 be the embodiment of the present invention hybrid network between GSW and SW notice link information schematic diagram；
Fig. 6 A are a kind of typical structure schematic diagram of the Config LSA information in the embodiment of the present invention；
Fig. 6 B are the structural schematic diagram of the Config LSA information comprising multiple link informations in the embodiment of the present invention；
The flow chart of the acquisition methods for another collocation point link information that Fig. 7 designs for the embodiment of the present invention；
Fig. 8 is SW in the embodiment of the present invention to the process flow of the LSA information of reception；
A kind of structural schematic diagram of the acquisition device for collocation point link information that Fig. 9 designs for the embodiment of the present invention；
A kind of a kind of possible structure of the acquisition device for collocation point link information that Figure 10 designs for the embodiment of the present invention
Schematic diagram；
The structural schematic diagram of the acquisition device for another collocation point link information that Figure 11 designs for the embodiment of the present invention；
A kind of possible knot of the acquisition device for another collocation point link information that Figure 12 designs for the embodiment of the present invention
Structure schematic diagram；
A kind of structural schematic diagram for gateway switch that Figure 13 designs for the embodiment of the present invention；
Figure 14 is a kind of structural schematic diagram of interchanger provided in an embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.
As shown in fig.2, the embodiment of the present invention devises a kind of acquisition methods of collocation point link information, including walk as follows
Suddenly.
Step 201：GSW constructs configuration link state advertisement according to the link information of collocation point（configuration
Link-State Advertisement, abbreviation Config LSA）Information.Wherein, above-mentioned link information includes above-mentioned collocation point
Connection protocol type, Internet protocol IP address and port numbers, above-mentioned GSW is directly connected to above-mentioned collocation point.It needs to illustrate
It is that described be directly connected to each mean between two network entities carries out communication switching without other network entities in the present invention.
Step 202：Above-mentioned Config LSA information is sent to the interchanger communicated to connect with above-mentioned GSW（Switch, letter
Claim SW）, so that above-mentioned SW obtains the link information of the above-mentioned collocation point carried in above-mentioned Config LSA information.
Above-mentioned collocation point can be OpenFlow collocation points, and OpenFlow collocation points can be an independent network element,
Can be OpenFlow controllers（Controller）A component part.Above-mentioned GSW or/and SW can be supported
The OpenFlow interchangers of Hybrid patterns, that is to say, that GSW or/and SW is while supporting OpenFlow agreements, moreover it is possible to
Enough support ospf（OSPF, Open Shortest Path First）Agreement or OSPF scaled-down versions（Lite）
Agreement.
The schematic diagram of the hybrid patterns of OpenFlow interchangers is refering to shown in Fig. 3.Dotted line indicates that data flow away in Fig. 3
To the interaction between bold portion representation module.Fig. 3 only shows a kind of possible realization method, in practical application
The structure of OpenFlow interchangers is not limited to this possibility that Fig. 3 is shown.
In Fig. 3, control plane can be that by the module of control function, for example, central processing unit（CPU, Central
Processing Unit）.Forwarding surface can be the hardware module for information matches and forwarding.Data are passing through physical layer end
Mouthful（PHY Port, Port Physical Layer Port）Into after OpenFlow interchangers, into forwarding surface.Forwarding surface is sentenced
The data that disconnecting receives are based on OpenFlow agreements or based on ospf protocol or OSPF Lite agreements：
If the data are non-ospf protocols（For example, OpenFlow agreements）Data, then extremely by the data forwarding
OpenFlow protocol modules are handled；If the data are based on ospf protocol or OSPF Lite agreements, which is led to
Cross logic interfacing（Logic Port）Be forwarded to OSPF/OSPF Lite protocol modules processing, wherein OpenFlow protocol modules and
OSPF/OSPF Lite protocol modules can be agreement relevant software programs.
That is, running OSPF or OSPF Lite agreements in the control plane of OpenFlow interchangers to realize routing
The notice and forwarding of information.
The link information of above-mentioned collocation point can be, but not limited to：The connection protocol type of the collocation point, the addresses IP and
Port numbers.
Preferably, the link information for including in Config LSA information can be multiple.For example, in a Config
Can include 3 collocation points and 2 corresponding link informations of controller in LSA information.
Therefore, when above-mentioned collocation point is multiple collocation points, above-mentioned GSW believes according to above-mentioned multiple respective connections of collocation point
Breath constructs above-mentioned Config LSA information, and above-mentioned Config LSA information is sent to the SW communicated to connect with above-mentioned GSW, with
Above-mentioned SW is set to obtain the link information of each collocation point carried in above-mentioned Config LSA information.
SW that one is directly connected to collocation point can arbitrarily be chosen as GSW.Assuming that the topological structure of hybrid network is such as
Shown in Fig. 4.Collocation point is directly connected to GSW, and GSW constitutes a domain together with other SW.
Preferably, above-mentioned Config LSA information to be sent to the SW communicated to connect with above-mentioned GSW, specifically include：
The carrying of above-mentioned Config LSA information is sent in link state update LSU message and is directly connected with above-mentioned GSW
The SW connect is sent so that the above-mentioned SW being directly connected to above-mentioned GSW carries above-mentioned Config LSA information in LSU message
Its own other SW being directly connected to is given, and is carried above-mentioned Config LSA information in LSU message by other above-mentioned SW
The other SW being directly connected to its own are sent to, until all SW with above-mentioned GSW communication connections receive above-mentioned Config
LSA information.
Before stating step 201 in realization, further include：
GSW transmission link states update（Link State Update, abbreviation LSU）Message gives above-mentioned GSW and directly connects
The SW connect；
GSW receiving link status is asked（Link State Request, abbreviation LSR）Message, on above-mentioned LSR message is
State what the SW being directly connected to above-mentioned GSW generated and sent according to the above-mentioned DBD message received.
Shown in Fig. 5.Fig. 5 be the embodiment of the present invention hybrid network between GSW and SW, be based on Config LSA
Information notices the schematic diagram of link information.Config LSA information is sent to SW adjacent thereto by GSW.The SW adjacent with GSW
The Config LSA information received is transmitted to other SW again.
A kind of typical structure of Config LSA information in the embodiment of the present invention is refering to shown in Fig. 6 A, type field chain
Line state（LS, Link State）Type=n, wherein n is the integer less than 1 or more than 11, and n is preset solid under normal conditions
Definite value.
LS age indicate the link state age in Fig. 6 A；
Options indicates option；
LS Type indicate link-state type, as type field；
Link State ID indicate link state identification code；
Adverting Router indicate advertizing router；
LS Sequence number indicate link state sequence number；
LS checksum indicate link state verification and；
Length indicates length；
Port indicates the port numbers of collocation point；
IP indicates the IP address of collocation point；
Conn Type indicate the connection protocol type of collocation point, may include a variety of OF-CONFIG agreements, for example, SSH,
SOAP, BEEP, tls protocol, transmission control protocol（TCP, Transmission Control Protocol）Deng.
May include multiple link informations shown in Fig. 6 B, in a Config LSA information, Conn in Fig. 6 B
Type M indicate that the connection protocol type of m-th collocation point, Port M indicate that the port numbers of m-th collocation point, IP M indicate M
The IP address of a collocation point, wherein M is the positive integer more than 1.
Embodiment one：
Assuming that GSW and SW1, and GSW is adjacent with SW2, and SW2 is adjacent with SW3, and SW3 is non-conterminous with GSW, SW1 and SW2 not phase
Neighbour, SW1 and SW3 are non-conterminous.
GSW/SW in mixed networking is based on multicast or broadcast mode, periodically sends Hello to adjacent GSW/SW
Message, with foundation and maintaining adjacent relationship.The mutual switching database descriptions of GSW/SW with syntople（DBD,
Database Description）Message.The header information that LSA information is contained in DBD message, for describing link state
The summary info of database.
GSW generates Config LSA information after the link information for obtaining collocation point, based on the link information, at this point, GSW
Link state change, then, GSW generates new DBD information and sendings to SW1 and SW2.
SW1 and SW2 determines that local Config LSA information needs to update respectively according to the DBD message received.This
When, SW1 will generate link state request（LSR, Link State Request）Message（LSR1）, and GSW is sent it to,
To ask GSW to send Config LSA information to SW1；SW2 can also generate LSR message, and send it to GSW, with request
GSW sends Config LSA information to SW2.
GSW is in the LSR message for receiving SW1 transmissions（LSR1）Afterwards, Config LSA information is carried and is sent out in LSU message
Give SW1.GSW is in the LSR message for receiving SW2 transmissions（LSR2）Afterwards, Config LSA information is carried and is sent out in LSU message
Give SW2.
SW1 parses Config LSA information from the LSU message received, and based in the Config LSA information
Link information, with corresponding collocation point establish connect.
SW2 parses Config LSA information from the LSU message received, and based in the Config LSA information
Link information, with corresponding collocation point establish connect.At this point, the link state of SW2 changes, then, SW2 generates new DBD
Information and sending is to SW3.
SW3 determines that local Config LSA information needs to update according to the DBD message received.At this point, SW3 will
Generate link state request（LSR, Link State Request）Message（LSR3）, and SW1 is sent it to, to ask SW2
Config LSA information is sent to SW3.
The Config LSA information that GSW is sent is transmitted to SW3 by SW2.
Based on same mentality of designing, a kind of acquisition methods of collocation point link information have also been devised in the embodiment of the present invention, ginseng
It reads shown in Fig. 7, includes the following steps.
Step 701：Receive the configuration link state advertisement Config LSA information that gateway switch GSW is sent.Above-mentioned GSW
It is directly connected to collocation point, the link information of above-mentioned collocation point is included in above-mentioned Config LSA information.
Step 702：According to the link information of the above-mentioned above-mentioned collocation point of Config LSA information acquisitions.
Wherein, above-mentioned link information includes the connection protocol type, Internet protocol IP address and port numbers of above-mentioned collocation point.
Step 701 can be realized by following specifically realization methods：
Receive the Link State Notification that above-mentioned GSW is sent（Link-State Advertisement, abbreviation LSA）Information；
Determine that above-mentioned LSA information is Config LSA information according to the numerical value of the specific field of above-mentioned LSA information.
Preferably, when carrying the link information of multiple collocation points in determining above-mentioned Config LSA information, according to upper
State the link information of each collocation point of Config LSA information acquisitions.
Above-mentioned Config LSA information is sent to the SW directly connected, so as to the above-mentioned SW roots directly connected
According to the above-mentioned above-mentioned collocation point of Config LSA information acquisitions link information and by above-mentioned Config LSA information be sent to its from
Other SW that body is directly connected to, until all SW with above-mentioned GSW communication connections receive above-mentioned Config LSA information；
Wherein, above-mentioned Config LSA information carrying is sent in link state update LSU message.
Preferably, above-mentioned collocation point can be, but not limited to as OpenFlow collocation points, above-mentioned GSW and above-mentioned SW can with but not
It is limited to OpenFlow interchangers.
Before the Config LSA information that above-mentioned reception GSW is sent, further include：
Receive the database description DBD message that above-mentioned GSW is sent；
Receiving link status request LSR information and sendings are generated to above-mentioned GSW according to above-mentioned DBD message.
Preferably, it is above-mentioned above-mentioned Config LSA information is sent to the SW directly connected before, further include：
Transmission data library describes DBD message to the above-mentioned SW directly connected；
Receiving link status asks LSR message, and above-mentioned LSR message is the above-mentioned SW directly connected according to receiving
What above-mentioned DBD message generated and sent.
The executive agent of above-mentioned steps includes having the SW directly or indirectly communicated to connect between GSW.
With reference to Fig. 8 for example, some SW in hybrid network（For example, OpenFLow interchangers）It is receiving
Process flow after LSA information.
Step 801：SW receives LSA information.
Step 802：SW judges whether the LSA information is Config LSA information, if so then execute step 804, otherwise,
Execute step 803.
SW can parse the LSA information in practical application, and the value of type field is that characterization should in determining the LSA information
LSA information is the predetermined fixed value of Config LSA information（The predetermined fixed value can be less than 1 or the integer more than 11）When,
Judge that the LSA information is Config LSA information.
Step 803：SW handles the LSA information according to existing ospf protocol.
Step 804：SW is established with corresponding collocation point and is connected according to the link information carried in the Config LSA information
It connects.
During the realization of step 804, SW parses the connection in the link information carried in Config LSA information
Then protocol type, IP address and port numbers initiate the connection foundation request to the IP address and the corresponding collocation point of port numbers, use
According to the connection protocol type, to establish corresponding connection.
In practical application, SW when carrying the link information of multiple collocation points in determining above-mentioned Config LSA information,
It is based respectively on the corresponding link information of each collocation point carried in above-mentioned Config LSA information, establishes and connects with the collocation point
It connects.
In mixed networking respective switch get the link information of collocation point process it is as follows：
（1）The SW being directly connected to collocation point in mixed networking is chosen, as GSW.
（2）GSW configures the link information of collocation point.
The link information includes connection protocol type, IP address and port numbers.
（3）GSW generates Config LSA information according to link information.
The value of the type field of the Config LSA information is n, wherein n is the integer for being more than 11 less than 1.
（4）Config LSA information is sent to SW by GSW.
In this course, it can be exchanged with each other Config LSA information between all SW and GSW in mixed networking,
To obtain the link information of each collocation point in mixed networking.
（5）After SW receives LSA information, based on the type field of LSA information, judge the LSA information for Config LSA
When information, the link information carried in the Config LSA information is read.
（6）SW is initiated the connection according to the link information of reading to corresponding collocation point, to be built between SW and collocation point
Vertical communication connection.
Based on same mentality of designing, the embodiment of the present invention additionally provides a kind of acquisition device of collocation point link information, ginseng
It reads shown in Fig. 9, which includes：
Constructing module 901, for constructing configuration link state advertisement Config LSA letters according to the link information of collocation point
Breath, wherein above-mentioned link information includes connection protocol type, the addresses Internet protocol IP and the port numbers of above-mentioned collocation point, this dress
It sets and is directly connected to above-mentioned collocation point；
Sending module 902, for above-mentioned Config LSA information to be sent to the interchanger SW communicated to connect with the present apparatus,
So that above-mentioned SW obtains the link information of the above-mentioned collocation point carried in above-mentioned Config LSA information.
Preferably, when above-mentioned collocation point is multiple collocation points, above-mentioned constructing module 901 is specifically used for, according to above-mentioned more
A respective link information of collocation point constructs above-mentioned Config LSA information, and above-mentioned sending module 902, being specifically used for will be above-mentioned
Config LSA information is sent to the SW communicated to connect with the present apparatus, is taken in above-mentioned Config LSA information so that above-mentioned SW is obtained
The link information of each collocation point of band.
Preferably, above-mentioned sending module 901, is specifically used for：
The carrying of above-mentioned Config LSA information is sent in link state update LSU message and is directly connected to the present apparatus
SW so that the above-mentioned SW being directly connected to the present apparatus above-mentioned Config LSA information is carried be sent in LSU message with
Its own other SW being directly connected to, and above-mentioned Config LSA information is carried by other above-mentioned SW and is sent in LSU message
Its own other SW being directly connected to is given, until all SW with present apparatus communication connection receive above-mentioned Config LSA and believe
Breath.
In practical application, above-mentioned collocation point can be, but not limited to as OpenFlow collocation points, and above-mentioned SW can be, but not limited to
For OpenFlow interchangers.
Preferably, as shown in fig.10, above-mentioned apparatus can also include receiving module 903, above-mentioned sending module 902,
Before above-mentioned Config LSA information is sent to the interchanger SW communicated to connect with the present apparatus, it is additionally operable to：
Transmission data library describes DBD message and gives the SW that the present apparatus is directly connected to；
Receiving module 903 asks LSR message for receiving link status, and above-mentioned LSR message is above-mentioned direct with the present apparatus
The SW of connection generates and sends according to the above-mentioned DBD message received.
Based on same mentality of designing, the embodiment of the present invention also provides the acquisition device of another collocation point link information, ginseng
It reads shown in Figure 11, including：
Receiving module 1001, the configuration link state advertisement Config LSA letters sent for receiving gateway switch GSW
Breath, above-mentioned GSW are directly connected to collocation point, and the link information of above-mentioned collocation point is included in above-mentioned Config LSA information, above-mentioned
Link information includes connection protocol type, the addresses Internet protocol IP and the port numbers of above-mentioned collocation point；
Acquisition module 1002, for the link information according to the above-mentioned above-mentioned collocation point of Config LSA information acquisitions.
Preferably, above-mentioned receiving module 1001, is specifically used for：
Receive the LSA information that above-mentioned GSW is sent；
Determine that above-mentioned LSA information is Config LSA information according to the numerical value of the specific field of above-mentioned LSA information.
Preferably, above-mentioned acquisition module 1002, is specifically used for：
When carrying the link information of multiple collocation points in determining above-mentioned Config LSA information, according to above-mentioned
The link information of each collocation point of Config LSA information acquisitions.
Refering to fig. 1 shown in 2, above-mentioned apparatus can also include sending module 1003, be used for：
Above-mentioned Config LSA information is sent to the SW directly connected, so as to the above-mentioned SW roots directly connected
According to the above-mentioned above-mentioned collocation point of Config LSA information acquisitions link information and by above-mentioned Config LSA information be sent to its from
Other SW that body is directly connected to, until all SW with above-mentioned GSW communication connections receive above-mentioned Config LSA information,
In, above-mentioned Config LSA information carrying is sent in link state update LSU message.
In practical application, above-mentioned collocation point can be, but not limited to as OpenFlow collocation points, and above-mentioned GSW and above-mentioned SW can be with
But it is not limited to OpenFlow interchangers.
Preferably, above-mentioned receiving module 1001 is additionally operable to connect before the Config LSA information that above-mentioned reception GSW is sent
Receive the database description DBD message that above-mentioned GSW is sent；Above-mentioned acquisition module 1002 is additionally operable to be connect according to the generation of above-mentioned DBD message
It receives link state and asks LSR message；Above-mentioned sending module 1003 is additionally operable to send above-mentioned LSR message to above-mentioned GSW.
Preferably, above-mentioned sending module 1003 is directly connected in above-mentioned be sent to above-mentioned Config LSA information
Before SW, it is additionally operable to：
Transmission data library describes DBD message to the above-mentioned SW directly connected；
Above-mentioned receiving module 1001 is additionally operable to receiving link status request LSR message, and above-mentioned LSR message is above-mentioned straight with it
The SW connect in succession generates and sends according to the above-mentioned DBD message received.
Above-mentioned apparatus is one-to-one with method flow, and details are not described herein.
Based on same mentality of designing, the embodiment of the present invention has been also provided to a kind of gateway switch.Refering to fig. 1 shown in 3,
The gateway switch includes transceiver 1201, processor 1202, memory 1203 and bus 1204, the transceiver 1201, processing
Device 1202 and memory 1203 connect by bus 1204 and complete mutual communication, wherein：
The bus 1204 can be industry standard architecture（Industry Standard Architecture, ISA）
Bus, external equipment interconnection（Peripheral Component, PCI）Bus or extended industry-standard architecture
（Extended Industry Standard Architecture, EISA）Bus etc..It is total that the bus 1204 can be divided into address
Line, data/address bus, controlling bus etc..For ease of indicating, only indicated with a line in Figure 13, it is not intended that an only bus
Or a type of bus.
For memory 1203 for storing program code, which includes operational order.Memory 1203 may include
High speed random access memory（Random access memory, RAM）, it is also possible to including nonvolatile memory（non-
volatile memory）, such as magnetic disk storage.
Processor 1202 may be a central processing unit（Central Processing Unit, CPU）, or it is special
Determine integrated circuit（Application Specific Integrated Circuit, ASIC）, or be arranged to implement this
One or more integrated circuits of inventive embodiments.
Transceiver 1201 can be used for sending information to the SW connecting with this gateway switch communication.
Above-mentioned processor 1202 executes following operation for calling the program code in above-mentioned memory 1203：
Config LSA information is constructed according to the link information of collocation point, wherein above-mentioned link information includes above-mentioned configuration
Connection protocol type, IP address and the port numbers of point, this gateway switch are directly connected to above-mentioned collocation point；
By above-mentioned transceiver 1201 above-mentioned Config LSA information is sent to and to be connect with this gateway switch communication
SW, so that above-mentioned SW obtains the link information of the above-mentioned collocation point carried in above-mentioned Config LSA information.
Preferably, above-mentioned processor 1202, is specifically used for calling the program code in above-mentioned memory 1203 to execute following
Operation：
It is above-mentioned according to above-mentioned multiple respective link information constructions of collocation point when above-mentioned collocation point is multiple collocation points
Config LSA information is called above-mentioned transceiver 1201 to be sent to above-mentioned Config LSA information and is communicated to connect with above-mentioned GSW
SW so that above-mentioned SW obtains the link information of each collocation point carried in above-mentioned Config LSA information.
Preferably, above-mentioned transceiver 1201 is specifically used for：
The carrying of above-mentioned Config LSA information is sent to the SW being directly connected to above-mentioned GSW in LSU message, so that
Above-mentioned Config LSA information is carried and is sent in LSU message with it certainly by the above-mentioned SW connect in succession with this gateway switchboard direct
Other SW that body is directly connected to, and by other above-mentioned SW above-mentioned Config LSA information carried be sent in LSU message with
Its own other SW being directly connected to, until all SW being connect with this gateway switch communication receive above-mentioned Config LSA
Information.
In practical application, above-mentioned collocation point can be, but not limited to as OpenFlow collocation points, this gateway switch and above-mentioned
SW can be, but not limited to as OpenFlow interchangers.
Preferably, above-mentioned transceiver 1201, communicated to connect with the present apparatus being sent to above-mentioned Config LSA information
Before interchanger SW, it is additionally operable to：
Transmission data library describes DBD message and gives the SW that the present apparatus is directly connected to；
Receiving link status asks LSR message, and above-mentioned LSR message is the above-mentioned SW being directly connected to the present apparatus according to connecing
What the above-mentioned DBD message received generated and sent.
Based on same mentality of designing, the embodiment of the present invention has been also provided to a kind of interchanger.Refering to fig. 1 shown in 4, the gateway
Interchanger includes transceiver 1301, processor 1302, memory 1303 and bus 1304, the transceiver 1301, processor 1302
Mutual communication is connected and completed by bus 1304 with memory 1303, wherein：
The bus 1304 can be pci bus or eisa bus etc..It is total that the bus 1304 can be divided into address bus, data
Line, controlling bus etc..For ease of indicating, only indicated with a line in Figure 14, it is not intended that an only bus or a type
The bus of type.
For memory 1303 for storing program code, which includes operational order.Memory 1303 may include
RAM, it is also possible to including nonvolatile memory, such as magnetic disk storage.
Processor 1302 may be a CPU or ASIC, or be arranged to implement the one of the embodiment of the present invention
A or multiple integrated circuits.
Transceiver 1301 is used to receive the configuration link state advertisement Config LSA information that gateway switch GSW is sent,
Above-mentioned GSW is directly connected to collocation point, and the link information of above-mentioned collocation point, above-mentioned connection are included in above-mentioned Config LSA information
Information includes connection protocol type, the addresses Internet protocol IP and the port numbers of above-mentioned collocation point.
Above-mentioned processor 1302 is specifically used for calling the program code in above-mentioned memory 1303 to execute following operation：
According to the link information of the above-mentioned above-mentioned collocation point of Config LSA information acquisitions.
Preferably, above-mentioned transceiver 1301, is specifically used for：
Receive the LSA information that above-mentioned GSW is sent；
Determine that above-mentioned LSA information is Config LSA information according to the numerical value of the specific field of above-mentioned LSA information.
Preferably, above-mentioned transceiver 1301 is specifically used for：
When carrying the link information of multiple collocation points in determining above-mentioned Config LSA information, according to above-mentioned
The link information of each collocation point of Config LSA information acquisitions.
In the embodiment of the present invention, GSW is sent to by carrying the link information of collocation point in Config LSA information
SW in mixed networking, so that it may so that SW is directly by the link information of Config LSA acquisition of information to collocation point, to
It is established and is connected based on the link information and collocation point, avoid each SW as the prior art by connecting computer, and
The link information that collocation point is obtained based on order line or image mode, it is the company for obtaining collocation point to reduce the SW in hybrid network
It connects information and needs the workload disposed, shorten the setup time summation of interchanger in entire hybrid network, also avoid SW and match
The case where setting error occurs, and improves system effectiveness.
The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out the embodiment of the present invention various modification and variations without departing from this hair
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (24)
1. a kind of acquisition methods of collocation point link information, which is characterized in that be applied to support ospf
In the mixed networking of OSPF and openflow agreements, the method includes：
Gateway switch GSW constructs configuration link state advertisement Config LSA information according to the link information of collocation point, wherein
The link information includes the connection protocol type, Internet protocol IP address and port numbers of the collocation point, the GSW with it is described
Collocation point is directly connected to；
The Config LSA information is sent to the interchanger SW communicated to connect with the GSW, so that described in SW acquisitions
The link information of the collocation point carried in Config LSA information, to be built with the collocation point based on the link information
Vertical connection.
2. the method as described in claim 1, which is characterized in that when the collocation point is multiple collocation points,
The GSW constructs Config LSA information according to the link information of collocation point, specially：The GSW is according to the multiple
The respective link information of collocation point constructs the Config LSA information；
It is described that the Config LSA information is sent to the SW communicated to connect with the GSW, so that described in SW acquisitions
The link information of the collocation point carried in Config LSA information, specially：
The Config LSA information is sent to the SW communicated to connect with the GSW, so that the SW obtains the Config
The link information of each collocation point carried in LSA information.
3. the method as described in claim 1, which is characterized in that it is described by the Config LSA information be sent to it is described
The SW of GSW communication connections, specifically includes：
The Config LSA information is carried to be sent in link state update LSU message and is directly connected to the GSW
SW so that the SW being directly connected to the GSW by Config LSA information carrying be sent in LSU message and its
The other SW itself being directly connected to, and the Config LSA information is carried by other SW and is sent in LSU message
The other SW being directly connected to its own, until all SW with GSW communication connections receive the Config LSA and believe
Breath.
4. the method as described in claim 1, which is characterized in that the collocation point is open flows OpenFlow collocation points, described
The GSW and SW is open flows OpenFlow interchangers.
5. the method as described in Claims 1-4 is any, which is characterized in that send the Config LSA information described
Before the interchanger SW for giving the GSW communication connections, further include：
GSW transmission datas library describes DBD message and gives the SW that the GSW is directly connected to；
Receiving link status asks LSR message, and the LSR message is the SW being directly connected to the GSW according to receiving
The DBD message generate and send.
6. a kind of acquisition methods of collocation point link information, which is characterized in that be applied to support ospf
In the mixed networking of OSPF and openflow agreements, the method includes：
The configuration link state advertisement Config LSA information that gateway switch GSW is sent is received, the GSW and collocation point are direct
It connects, the link information of the collocation point is included in the Config LSA information, the link information includes the collocation point
Connection protocol type, Internet protocol IP address and port numbers；
According to the link information of collocation point described in the Config LSA information acquisitions；
According to the link information, establishes and connect with the collocation point.
7. method as claimed in claim 6, which is characterized in that the Config LSA information for receiving GSW and sending is specific to wrap
It includes：
Receive the Link State Notification LSA information that the GSW is sent；
Determine that the LSA information is Config LSA information according to the numerical value of the specific field of the LSA information.
8. method as claimed in claim 6, which is characterized in that according to collocation point described in the Config LSA information acquisitions
Link information specifically includes：
When carrying the link information of multiple collocation points in determining the Config LSA information, according to the Config LSA
The link information of each collocation point of information acquisition.
9. method as claimed in claim 6, which is characterized in that further include：
The Config LSA information is sent to the SW directly connected, so that the SW directly connected is according to institute
It states the link information of collocation point described in Config LSA information acquisitions and the Config LSA information is sent to its own directly
The other SW connect in succession, until all SW with GSW communication connections receive the Config LSA information；
Wherein, the Config LSA information carrying is sent in link state update LSU message.
10. method as claimed in claim 6, which is characterized in that the collocation point is open flows OpenFlow collocation points, described
The GSW and SW is open flows OpenFlow interchangers.
11. the method as described in claim 6 to 10 is any, which is characterized in that in the Config LSA that the reception GSW is sent
Before information, further include：
Receive the database description DBD message that the GSW is sent；
Receiving link status request LSR information and sendings are generated to the GSW according to the DBD message.
12. method as claimed in claim 9, which is characterized in that it is described by the Config LSA information be sent to and its
Before the SW being directly connected to, further include：
Transmission data library describes DBD message to the SW directly connected；
Receiving link status asks LSR message, and the LSR message is the SW directly connected according to what is received
DBD message generates and sends.
13. a kind of acquisition device of collocation point link information, which is characterized in that be applied to support ospf
In the mixed networking of OSPF and openflow agreements, described device includes：
Constructing module, for constructing configuration link state advertisement Config LSA information according to the link information of collocation point, wherein
The link information includes the connection protocol type, Internet protocol IP address and port numbers of the collocation point, the present apparatus with it is described
Collocation point is directly connected to；
Sending module, for the Config LSA information to be sent to the interchanger SW communicated to connect with the present apparatus, so that institute
State the link information that SW obtains the collocation point carried in the Config LSA information, to based on the link information with
The collocation point establishes connection.
14. device as claimed in claim 13, which is characterized in that when the collocation point is multiple collocation points, the construction
Module is specifically used for constructing the Config LSA information according to the respective link information of the multiple collocation point；
The sending module, specifically for the Config LSA information is sent to the SW communicated to connect with the present apparatus, so that
The SW obtains the link information of each collocation point carried in the Config LSA information.
15. device as claimed in claim 13, which is characterized in that the sending module is specifically used for：
The Config LSA information is carried to be sent in link state update LSU message and is directly connected to the present apparatus
SW so that the SW being directly connected to the present apparatus by Config LSA information carrying be sent in LSU message and its
The other SW itself being directly connected to, and the Config LSA information is carried by other SW and is sent in LSU message
The other SW being directly connected to its own, until all SW with present apparatus communication connection receive the Config LSA and believe
Breath.
16. device as claimed in claim 13, which is characterized in that the collocation point is open flows OpenFlow collocation points, institute
It is open flows OpenFlow interchangers to state SW.
17. the device as described in claim 13 to 16 is any, which is characterized in that the sending module, by the Config
LSA information is sent to before the interchanger SW communicated to connect with the present apparatus, is additionally operable to：
Transmission data library describes DBD message and gives the SW that the present apparatus is directly connected to；
Described device further includes：
Receiving module, it is described to be directly connected to the present apparatus to ask LSR message, the LSR message for receiving link status
SW generates and sends according to the DBD message received.
18. a kind of acquisition device of collocation point link information, which is characterized in that be applied to support ospf
In the mixed networking of OSPF and openflow agreements, described device includes：
Receiving module, the configuration link state advertisement Config LSA information sent for receiving gateway switch GSW are described
GSW is directly connected to collocation point, and the link information of the collocation point, the link information are included in the Config LSA information
Connection protocol type, Internet protocol IP address including the collocation point and port numbers；
Acquisition module, for the link information according to collocation point described in the Config LSA information acquisitions, so that the dress
It sets to be established according to the link information and the collocation point and connect.
19. device as claimed in claim 18, which is characterized in that the receiving module is specifically used for：
Receive the Link State Notification LSA information that the GSW is sent；
Determine that the LSA information is Config LSA information according to the numerical value of the specific field of the LSA information.
20. device as claimed in claim 18, which is characterized in that the acquisition module is specifically used for：
When carrying the link information of multiple collocation points in determining the Config LSA information, according to the Config LSA
The link information of each collocation point of information acquisition.
21. device as claimed in claim 18, which is characterized in that further include：
Sending module, for the Config LSA information to be sent to the SW directly connected, so as to it is described directly
The SW of connection is according to the link information of collocation point described in the Config LSA information acquisitions and by the Config LSA information
It is sent to its own other SW being directly connected to, until all SW with GSW communication connections receive the Config
LSA information, wherein the Config LSA information carrying is sent in link state update LSU message.
22. device as claimed in claim 21, which is characterized in that the receiving module is sent in the reception GSW
Before Config LSA information, it is additionally operable to receive the database description DBD message that the GSW is sent；The acquisition module is also used
LSR message is asked in generating receiving link status according to the DBD message；The sending module, which is additionally operable to send the LSR, to disappear
It ceases to the GSW.
23. device as claimed in claim 21, which is characterized in that the sending module believes the Config LSA described
Breath is sent to before the SW directly connected, is additionally operable to：
Transmission data library describes DBD message to the SW directly connected；
The receiving module is additionally operable to receiving link status request LSR message, and the LSR message is described directly to connect
SW generated and sent according to the DBD message received.
24. the device as described in claim 18 to 23 is any, which is characterized in that the collocation point is that open flows OpenFlow matches
It sets a little, the GSW and the SW are open flows OpenFlow interchangers.
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| CN201310487633.5A CN104580021B (en) | 2013-10-17 | 2013-10-17 | A kind of acquisition methods and device of collocation point link information |
| PCT/CN2014/088436 WO2015055103A1 (en) | 2013-10-17 | 2014-10-13 | Method and apparatus for obtaining connection information of configuration point |
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| CN101102325A (en) * | 2006-11-09 | 2008-01-09 | 华为技术有限公司 | Method and device for notifying boundary connection information of autonomous system |
| WO2013021304A1 (en) * | 2011-08-11 | 2013-02-14 | Telefonaktiebolaget L M Ericsson (Publ) | Implementing ospf in split architecture networks |
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| CN100461784C (en) * | 2006-04-10 | 2009-02-11 | 杭州华三通信技术有限公司 | Method and system for communication between gateway device |
| US8873398B2 (en) * | 2011-05-23 | 2014-10-28 | Telefonaktiebolaget L M Ericsson (Publ) | Implementing EPC in a cloud computer with openflow data plane |
| US8762501B2 (en) * | 2011-08-29 | 2014-06-24 | Telefonaktiebolaget L M Ericsson (Publ) | Implementing a 3G packet core in a cloud computer with openflow data and control planes |
| CN103209121B (en) * | 2013-03-15 | 2019-02-01 | 中兴通讯股份有限公司 | The discovery processing method and processing device of control plane equipment based on open flow agreement |
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| CN101102325A (en) * | 2006-11-09 | 2008-01-09 | 华为技术有限公司 | Method and device for notifying boundary connection information of autonomous system |
| WO2013021304A1 (en) * | 2011-08-11 | 2013-02-14 | Telefonaktiebolaget L M Ericsson (Publ) | Implementing ospf in split architecture networks |
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