CN106411735A - Routing configuration method and device - Google Patents
Routing configuration method and device Download PDFInfo
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- CN106411735A CN106411735A CN201610907493.6A CN201610907493A CN106411735A CN 106411735 A CN106411735 A CN 106411735A CN 201610907493 A CN201610907493 A CN 201610907493A CN 106411735 A CN106411735 A CN 106411735A
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- attribute
- tenant
- vpn instance
- outer net
- route
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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
- H04L45/38—Flow based routing
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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
- H04L45/02—Topology update or discovery
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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
- H04L45/14—Routing performance; Theoretical aspects
Abstract
The invention provides a routing configuration method and device, applied to a controller in an SDN. The method comprises the following steps: RT attributes of a VPN example of a tenant and a routing strategy of a VPN example of an external network are configured through the controller, so that gateway equipment sets RT attributes for routing from different external network equipment according to the routing strategy, matches the RT attributes of the routing with the RT attributes of the VPN example of the tenant, adds the routing into the VPN example of the tenant after successfully matching, and guides the flow of the tenant to be forwarded to the external network. By means of the routing configuration method and device, dynamic updating of the routing on the gateway equipment can be realized.
Description
Technical field
The present invention relates to network communication technology field, more particularly, to a kind of method for configuring route and device.
Background technology
SDN (Software Defined Network, software defined network) is a kind of new transmission via net framework, leads to
Cross control plane data planar separation, realize the flexible control of network traffics.
Existing SDN cloud outlet is generally focused on a cloud gateway, goes out outer net flow and passes through default gateway, static road
By mode point to the IP (InternetProtocol, abbreviation IP) of outer net equipment.
In general, tenant is sent to the flow of outer net by mating the static routing on gateway device to outer net forwarding.By
Equipment outside cloud gateway is uncontrollable, if the next-hop of this static routing is unreachable, flow cannot forward to outer net.
Content of the invention
It is an object of the invention to provide a kind of method for configuring route and device, in order to realize the dynamic of route on gateway device
State configures, and guides tenant's flow to forward to outer net.
For achieving the above object, the invention provides technical scheme：
The present invention provides a kind of method for configuring route, is applied to the controller in SDN, methods described includes：
The routing policy of configuration outer net VPN (Virtual Private Network, Virtual Private Network) example, described outer
The routing policy of net VPN instance is used for making gateway device arrange RT (Router to the route from different outer net equipment
Target, route target) attribute；
The RT attribute of configuration tenant's VPN instance；
The RT attribute of the routing policy of described outer net VPN instance and described tenant's VPN instance is handed down to gateway device,
So that described gateway device arranges RT attribute according to the routing policy of described outer net VPN instance to the route receiving from outer net equipment
Afterwards, judge the RT attribute whether RT attributes match with described tenant's VPN instance of described route, and determine RT attributes match
Afterwards, the route receiving is added in described tenant's VPN instance, guides tenant's flow to forward to outer net.
The present invention also provides a kind of routing configuration device, is applied to the controller in SDN, and described device includes：
Tactful dispensing unit, for configuring the routing policy of outer net virtual private network example, described outer net VPN instance
Routing policy be used for make gateway device to from different outer net equipment route arrange route target RT attribute；
Attribute configuration unit, for configuring the RT attribute of tenant's VPN instance；
Configuration distributing unit, for belonging to the RT of the routing policy of described outer net VPN instance and described tenant's VPN instance
Property is handed down to gateway device, so that described gateway device connects to from outer net equipment according to the routing policy of described outer net VPN instance
After the route setting RT attribute received, judge the RT attribute whether RT attributes match with described tenant's VPN instance of described route, and
After determining RT attributes match, the route receiving is added in described tenant's VPN instance, guides tenant's flow to turn to outer net
Send out.
By above description as can be seen that the present invention configures the RT attribute of tenant's VPN instance by controller, meanwhile, configuration
The routing policy (arranging RT attribute to the route from different outer net equipment) of outer net VPN instance, so that gateway device is according to road
By strategy to the route setting RT attribute receiving, and the RT attribute of route is mated with the RT attribute of tenant's VPN instance,
After being made into work(, route is added in the VPN instance of tenant, guides tenant's flow to forward to outer net.Net be can achieve by the present invention
The dynamic renewal of route on the equipment of pass.
Brief description
Fig. 1 is the method for configuring route flow chart shown in the embodiment of the present invention；
Fig. 2 is the schematic diagram of the SDN shown in the embodiment of the present invention；
Fig. 3 is the structural representation of the SDN internal controller shown in the embodiment of the present invention；
Fig. 4 is the structural representation of the routing configuration device shown in the embodiment of the present invention.
Specific embodiment
Here will in detail exemplary embodiment be illustrated, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the present invention.On the contrary, they be only with such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, the present invention.
It is the purpose only merely for description specific embodiment in terminology used in the present invention, and be not intended to be limiting the present invention.
" a kind of ", " described " and " being somebody's turn to do " of singulative used in the present invention and appended claims is also intended to including most
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps
Containing one or more associated any or all possible combination listing project.
It will be appreciated that though various information may be described using term first, second, third, etc. in the present invention, but this
A little information should not necessarily be limited by these terms.These terms are only used for same type of information is distinguished from each other out.For example, without departing from
In the case of the scope of the invention, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
The embodiment of the present invention proposes a kind of method for configuring route, and the method configures the RT of tenant's VPN instance by controller
Attribute, meanwhile, the routing policy (RT attribute is arranged to the route from different outer net equipment) of configuration outer net VPN instance, so that
Gateway device arranges RT attribute, and the RT by the RT attribute of route and tenant's VPN instance according to routing policy to the route receiving
Attribute is mated, and is added to route in the VPN instance of tenant after the match is successful, guides tenant's flow to forward to outer net.
Referring to Fig. 1, it is an embodiment flow chart of method for configuring route of the present invention, this embodiment is from SDN controller side
Route configuration process is described.
Step 101, the routing policy of configuration outer net VPN instance.
VPN is a kind of virtual private network technology, and VPN instance (VPN- is passed through in the route isolation between different VPN
Instance) realize.Each VPN instance has relatively independent routing table and LFIB (Label Forwarding
Information Base, tag forwarding information base) it is ensured that the independence of VPN data and safety.
Information in VPN instance can include：Interface and VPN instance that LFIB, IP route table are associated with VPN instance
Management information in any one or multiple.The management information of VPN instance can include RD (Route
Distinguisher, Route Distinguisher, for distinguishing the identical address prefix of different VPN), VPN Target (also known as
Route Target, abbreviation RT, for controlling the issue of VPN routing iinformation) attribute, in route filtering strategy any one or
Multiple.
In the present invention, SDN controller is configured with outer net VPN instance on gateway device, and this outer net VPN instance configures in net
Pass equipment connects on the outgoing interface of outer net equipment (for example, PE equipment).Gateway device passes through this outer net VPN instance and outer net equipment
Set up VPN instance neighbours, be that the route that receipt of subsequent outer net equipment is issued is prepared.
In this step, SDN controller configures routing policy for outer net VPN instance, and the routing policy of this outer net VPN instance is used
In making gateway device, RT attribute is arranged to the route from different outer net equipment.For example, the route from outer net equipment PE1 is set
Putting RT attribute is 1:1, it is 2 to the route setting RT attribute from outer net equipment PE2:2.
Step 102, the RT attribute of configuration tenant's VPN instance.
SDN controller is configured with corresponding VPN instance, abbreviation tenant's VPN instance for each tenant on gateway device.
In this step, SDN controller can configure one or more RT attributes for tenant's VPN instance.
Step 103, the RT attribute of the routing policy of described outer net VPN instance and described tenant's VPN instance is handed down to
Gateway device.
The configuration information of step 101 and step 102 is handed down to gateway device by SDN controller.
Gateway device, after outer net VPN instance sets up neighborhood with outer net equipment, receives the road that outer net equipment is issued
By, and RT attribute is arranged to the route receiving according to the routing policy of outer net VPN instance.Then, judge that the RT attribute routeing is
The no RT attributes match with tenant's VPN instance, after determining RT attributes match, the route receiving is added to tenant VPN real
In example, tenant's flow is guided to forward to outer net according to the route in tenant's VPN instance.
Optionally, in another embodiment of the invention, SDN controller can configure the route of tenant's VPN instance further
Strategy, the routing policy of this tenant's VPN instance is excellent according to the RT attribute setting of route to the route being added in tenant's VPN instance
First level.For example, when SDN controller selects active and standby mechanism, it is that tenant selects PE based on PE1, PE2 is from PE, then this tenant VPN
The routing policy of example can be：Setting RT attribute 1:1 route (from route of PE1) is high priority, arranges RT attribute
2:2 route (from route of PE2) is low priority.
The routing policy of tenant's VPN instance of configuration is handed down to gateway device by SDN controller.Gateway device is according to tenant
The routing policy of VPN instance arranges priority to the route being added in tenant's VPN instance, then in this tenant's flow of subsequent boots
When, coupling high priority route and forwards to outer net.When high priority route respective links are unreachable, gateway device ceases to be in force automatically
This high priority route, and the second highest priority route that comes into force is by guide tenant's flow is according to the routing forwarding newly coming into force, i.e. achieve
The active and standby mechanism of a plurality of route.
If SDN controller does not configure routing priority, gateway device using a plurality of route in tenant's VPN instance as etc.
Valency route, and realizes load balancing.It is not emphasis of the present invention that concrete tenant's flow how to mate equal-cost route to forward, and here is no longer superfluous
State.
Additionally, the RT attribute that SDN controller can exclusively enjoy for the configuration of tenant's VPN instance, for example, by RT attribute 1:1 configuration
To tenant 1, then the route being derived from PE1 only can be added in the VPN instance of tenant 1, and that is, tenant 1 exclusively enjoys PE1 and carries out outer net flow
Forward.
It should be added that, SDN controller configures the RT attribute of tenant's VPN instance, specifically may include：Determine gateway
The state of the outgoing interface being connected with outer net equipment on equipment；The outgoing interface that state pair according to outgoing interface is connected with outer net equipment enters
Row sequence, according to the RT attribute of the outer net equipment selecting to be connected with outgoing interface that puts in order of outgoing interface, configures tenant's VPN instance
RT attribute.That is, selecting the outgoing interface of state optimization to forward tenant's flow.Wherein, outgoing interface state can be according to going out to connect
The bandwidth rates of up (enabling)/down (disabling) state of mouth and outgoing interface determine.For example, when outgoing interface is in UP state,
It is ranked up from large to small according to remaining bandwidth speed；Select outgoing interface up and the maximum outgoing interface (state of remaining bandwidth speed
Optimum outgoing interface) the RT attribute of outer net equipment that connects, the RT attribute of configuration tenant's VPN instance.
SDN controller monitor in real time outgoing interface state, when the corresponding outgoing interface of RT attribute of tenant's VPN instance is in down
During state, delete the RT attribute of this tenant's VPN instance, retriggered configures the RT attribute of tenant's VPN instance, i.e. so that tenant is flowed
Amount is mated more excellent route all the time and is forwarded to outer net.Specifically, retriggered configures the RT attribute of tenant's VPN instance, still adopts
The method of above-mentioned offer, that is,：The state of the outgoing interface being connected with outer net equipment is determined on gateway device；State according to outgoing interface
The outgoing interface being connected with outer net equipment is ranked up, selects the outer net being connected with outgoing interface to set according to putting in order of outgoing interface
Standby RT attribute, the RT attribute of configuration tenant's VPN instance.More specifically, can carry out from large to small according to remaining bandwidth speed
Sequence；Select outgoing interface up and the RT attribute of the maximum outer net equipment of outgoing interface connection of remaining bandwidth speed, configure tenant VPN
The RT attribute of example.
It can be seen from the above description that the present invention is configured to the VPN instance on gateway device by SDN controller,
Realize the dynamic interpolation of route on gateway device, provide a plurality of optional path to forward for tenant's flow.
Now taking SDN shown in Fig. 2 as a example, introduce routing configuration process.Diagram SDN includes virtual machine VM1～VM4
(Virtual Machine, abbreviation VM), virtual swap device OVS1 and OVS2 (Open vSwitch, abbreviation OVS), SDN control
Device, gateway device GW (Gateway, abbreviation GW), outer net equipment PE1～PE4 (Provider Edge, abbreviation PE).Gateway device
BGP (Border Gateway Protocol, Border Gateway Protocol) agreement is run on GW.
It is assumed that having created outer net VPN instance on GW, be designated as ExtVPN, and under this ExtVPN respectively with PE1～PE4
Set up neighborhood.SDN controller can configure routing policy for different neighbours, enables the route receiving from different PE
Different RT are set.For example：SDN controller configures routing policy for ExtVPN, is designated as Policy1, this Policy1 is specially right
Route setting RT attribute from PE1 is 1:1；It is 2 to the route setting RT attribute from PE2:2；Route from PE3 is set
Putting RT attribute is 3:3；It is 4 to the route setting RT attribute from PE4:4.SDN controller is issued by netconf agreement
The Policy1 of ExtVPN is to GW.
When tenant User1 (renting VM1) newly-increased in SDN, the VPN that SDN controller creates User1 on GW is real
Example, is designated as UserVPN1, and configures the RT attribute of UserVPN1.It is assumed that the RT attribute of configuration is 1:1 and 2:2, pass through
Netconf agreement issues the RT attribute of UserVPN1 to GW.
When GW receives route (being designated as R1) from PE1, the RT that the routing policy Policy1 according to ExtVPN arranges R1 belongs to
Property be 1:RT attribute 1 in 1, R1 RT attribute and UserVPN1:1 coupling, therefore, R1 is added in UserVPN1.In the same manner,
The route (being designated as R2) that GW receives from PE2, the RT attribute that the routing policy Policy1 according to ExtVPN arranges R2 is 2:2, R2
RT attribute and UserVPN1 in RT attribute 2:2 couplings, therefore, R2 are added in UserVPN1.So far, in UserVPN1
There are two route R1 and R2.GW can route, using this two, the flow guiding User1 as equal-cost route and forward to outer net.
Certainly, also can be using above-mentioned two routes as main standby route.Specifically can configure UserVPN1's by SDN controller
Routing policy Policy2, this Policy2 are specially excellent according to the RT attribute setting of route to the route being added in UserVPN1
First level, for example, setting RT attribute is 1:The priority of 1 route is high priority；RT attribute is 2:The priority of 2 route is
Default priority, i.e. low priority.
Optionally, when arranging priority, can be configured by numeral, the high numeral of such as priority is big, priority
Low numeral is little, and then can determine the priority of route by comparing Digital size.
SDN controller issues the routing policy Policy2 of UserVPN1 to GW by netconf agreement.Then GW to
When UserVPN1 adds route R1, the priority that the Policy2 according to UserVPN1 arranges R1 is 7；When adding route R2, according to
The priority that the Policy2 of UserVPN1 arranges R2 is default priority 0.In GW, high priority route R1 comes into force, low priority
Route R2 lost efficacy, and flow matches R1 of User1 forward to outer net.When the next-hop of R1 is unreachable, R1 lost efficacy, and R2 comes into force,
The flow of User1 can be forwarded to outer net by R2, plays the purpose of main standby route.
It should be noted that the priority of R1 is 7 and the default priority of R2 0, therein digital 7 and digital 0 only
It is to illustrate, should not be as restriction.
It should be added that, SDN controller can dynamic configuration UserVPN1 RT attribute.Specifically, SDN controller
Can being connected by the Openflow between GW, the outgoing interface being connected with PE equipment being obtained on GW (it is assumed that being connected with PE1～PE4
Outgoing interface be respectively Interface1～Interface4) state, including UP/DOWN state, interface bandwidth speed etc..When
Outgoing interface is in up state, and remaining bandwidth is more than predetermined threshold value, and when that is, remaining bandwidth is more, the state of this outgoing interface is more excellent.
It is ranked up according to outgoing interface state, select state preferably RT attribute configuration UserVPN1 of PE equipment of outgoing interface connection
RT attribute.It is assumed that outgoing interface state from excellent to bad put in order for Interface1, Interface2, Interface3,
Interface4, SDN controller is intended to be UserVPN1 and configures two RT attributes, then by the RT of the PE1 being connected with Interface1
Attribute 1:The RT attribute 2 of 1 PE2 being connected with Interface2:2 are allocated to UserVPN1, provide high-quality turn for User1
Send out path.
It is assumed that SDN monitoring control devices Interface1 is in down state, then can actively delete the RT attribute of UserVPN1
1:1, reselect the RT attribute that state preferably outgoing interface configures UserVPN1, for example, according to outgoing interface state sequencing selection
The RT attribute 3 of the PE3 being connected with Interface3:The RT attribute of 3 configuration UserVPN1, now, the two of configuration in UserVPN1
Individual RT attribute is 2:2 and 3:3, to ensure the transfer quality of the flow of User1.
Corresponding with the embodiment of aforementioned method for configuring route, present invention also offers the embodiment of routing configuration device.
The embodiment of routing configuration device of the present invention can be applied on SDN controller.Device embodiment can be passed through soft
Part is realized it is also possible to be realized by way of hardware or software and hardware combining.As a example implemented in software, as a logical meaning
On device, be to be formed by corresponding computer program instructions in the processor run memory of its place equipment.From hard
For part aspect, as shown in figure 3, being a kind of hardware structure diagram of routing configuration device place of the present invention equipment, except shown in Fig. 3
Processor and nonvolatile memory outside, in embodiment device be located equipment generally according to this equipment actual work(
Can, other hardware can also be included, this is repeated no more.
Refer to Fig. 4, be the structural representation of the routing configuration device in one embodiment of the invention.This routing configuration fills
Put including tactful dispensing unit 401, attribute configuration unit 402 and configuration distributing unit 403, wherein：
Tactful dispensing unit 401, for configuring the routing policy of outer net virtual private network example, described outer net VPN is real
The routing policy of example is used for making gateway device arrange route target RT attribute to the route from different outer net equipment；
Attribute configuration unit 402, for configuring the RT attribute of tenant's VPN instance；
Configuration distributing unit 403, for by the routing policy of described outer net VPN instance and described tenant's VPN instance
RT attribute is handed down to gateway device, so that described gateway device sets to from outer net according to the routing policy of described outer net VPN instance
After the standby route setting RT attribute receiving, judge the RT attribute whether RT attribute with described tenant's VPN instance of described route
Join, and determine RT attributes match after, the route receiving is added in described tenant's VPN instance, guide tenant's flow to
Outer net forwards.
Further,
Described strategy dispensing unit 401, is additionally operable to configure the routing policy of described tenant's VPN instance, and described tenant VPN is real
The routing policy of example is used for arranging priority to the route being added in described tenant's VPN instance according to the RT attribute of route；
Described configuration distributing unit 403, is additionally operable to for the routing policy of described tenant's VPN instance to be handed down to described gateway and sets
Standby so that described gateway device according to the routing policy of described tenant's VPN instance to the road being added in described tenant's VPN instance
By setting priority, guide tenant's flow to route using the high priority matching and forward to outer net.
Further, described attribute configuration unit 402, including：
State determining module, for determining the state of the outgoing interface being connected on described gateway device with outer net equipment；
Interface order module, for be connected with outer net equipment according to the up/down state of outgoing interface and bandwidth rates pair
Outgoing interface is ranked up；
Attribute selection module, the RT for the outer net equipment selecting to be connected with outgoing interface that puts in order according to outgoing interface is belonged to
Property, the RT attribute of configuration tenant's VPN instance.
Further,
Described interface order module, specifically for as outgoing interface up, being arranged from large to small according to remaining bandwidth speed
Sequence；
Described attribute selection module, the outgoing interface specifically for selecting outgoing interface up and remaining bandwidth speed maximum connects
The RT attribute of outer net equipment, the RT attribute of configuration tenant's VPN instance.
Further, described attribute configuration unit 402, also includes：
Attribute removing module, for when the corresponding outgoing interface of RT attribute of tenant's VPN instance is in down state, deleting
The RT attribute of described tenant's VPN instance, retriggered configures the RT attribute of tenant's VPN instance.
In said apparatus, the process of realizing of the function of unit and effect specifically refers to corresponding step in said method
Realize process, will not be described here.
For device embodiment, because it corresponds essentially to embodiment of the method, thus real referring to method in place of correlation
The part applying example illustrates.Device embodiment described above is only schematically, wherein said as separating component
The unit illustrating can be or may not be physically separate, as the part that unit shows can be or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to actual
Need to select the purpose to realize the present invention program for some or all of module therein.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and to implement.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement done etc., should be included within the scope of protection of the invention.
Claims (10)
1. a kind of method for configuring route, is applied to controller in software defined network SDN it is characterised in that methods described bag
Include：
The routing policy of configuration outer net virtual private network example, the routing policy of described outer net VPN instance is used for making gateway set
For to the route from different outer net equipment, route target RT attribute is set；
The RT attribute of configuration tenant's VPN instance；
The RT attribute of the routing policy of described outer net VPN instance and described tenant's VPN instance is handed down to gateway device, so that
Described gateway device according to the routing policy of described outer net VPN instance to after the route setting RT attribute that outer net equipment receives,
Judge the RT attribute whether RT attributes match with described tenant's VPN instance of described route, and after determining RT attributes match, will
The route receiving is added in described tenant's VPN instance, guides tenant's flow to forward to outer net.
2. the method for claim 1 is it is characterised in that methods described also includes：
Configure the routing policy of described tenant's VPN instance, the routing policy of described tenant's VPN instance is used for being added to described rent
Route in the VPN instance of family is according to the RT attribute setting priority of route；
The routing policy of described tenant's VPN instance is handed down to described gateway device, so that described gateway device is according to described rent
The routing policy of family VPN instance, to the route setting priority being added in described tenant's VPN instance, guides tenant's flow to adopt
The high priority matching route and forwards to outer net.
3. the method for claim 1 is it is characterised in that the RT attribute of described configuration tenant's VPN instance, including：
The state of the outgoing interface being connected with outer net equipment is determined on described gateway device；
The outgoing interface that up/down state and bandwidth rates pair according to outgoing interface are connected with outer net equipment is ranked up；
According to the RT attribute of the outer net equipment selecting to be connected with outgoing interface that puts in order of outgoing interface, configuration tenant's VPN instance
RT attribute.
4. method as claimed in claim 3 is it is characterised in that the described up/down state according to outgoing interface and bandwidth rates
The outgoing interface being connected with outer net equipment is ranked up, including：
As outgoing interface up, it is ranked up from large to small according to remaining bandwidth speed；
The RT attribute of the described outer net equipment selecting to be connected with outgoing interface that puts in order according to outgoing interface, configuration tenant VPN is real
The RT attribute of example, including：
Select outgoing interface up and the RT attribute of the maximum outer net equipment of outgoing interface connection of remaining bandwidth speed, configure tenant VPN
The RT attribute of example.
5. method as claimed in claim 3 is it is characterised in that the corresponding outgoing interface of RT attribute working as tenant's VPN instance is in
During down state, delete the RT attribute of described tenant's VPN instance, retriggered configures the RT attribute of tenant's VPN instance.
6. a kind of routing configuration device, is applied to controller in software defined network SDN it is characterised in that described device bag
Include：
Tactful dispensing unit, for configuring the routing policy of outer net virtual private network example, the road of described outer net VPN instance
By strategy for making gateway device arrange route target RT attribute to the route from different outer net equipment；
Attribute configuration unit, for configuring the RT attribute of tenant's VPN instance；
Configuration distributing unit, for by under the RT attribute of the routing policy of described outer net VPN instance and described tenant's VPN instance
Issue gateway device so that described gateway device according to the routing policy of described outer net VPN instance to receiving from outer net equipment
After route setting RT attribute, judge the RT attribute whether RT attributes match with described tenant's VPN instance of described route, and true
After determining RT attributes match, the route receiving is added in described tenant's VPN instance, guides tenant's flow to forward to outer net.
7. device as claimed in claim 6 it is characterised in that：
Described strategy dispensing unit, is additionally operable to configure the routing policy of described tenant's VPN instance, the road of described tenant's VPN instance
By strategy for priority is arranged according to the RT attribute of route to the route being added in described tenant's VPN instance；
Described configuration distributing unit, is additionally operable to for the routing policy of described tenant's VPN instance to be handed down to described gateway device, so that
Described gateway device is arranged to the route being added in described tenant's VPN instance according to the routing policy of described tenant's VPN instance
Priority, is guided tenant's flow to be route using the high priority matching and forwards to outer net.
8. device as claimed in claim 6 is it is characterised in that described attribute configuration unit, including：
State determining module, for determining the state of the outgoing interface being connected on described gateway device with outer net equipment；
Interface order module, goes out to connect for be connected with outer net equipment according to the up/down state of outgoing interface and bandwidth rates pair
Mouth is ranked up；
Attribute selection module, for the RT attribute of the outer net equipment selecting to be connected with outgoing interface that puts in order according to outgoing interface,
The RT attribute of configuration tenant's VPN instance.
9. device as claimed in claim 8 it is characterised in that：
Described interface order module, specifically for as outgoing interface up, being ranked up from large to small according to remaining bandwidth speed；
Described attribute selection module, specifically for selecting the outer net of outgoing interface up and the maximum outgoing interface connection of remaining bandwidth speed
The RT attribute of equipment, the RT attribute of configuration tenant's VPN instance.
10. device as claimed in claim 8, it is characterised in that described attribute configuration unit, also includes：
Attribute removing module, described for when the corresponding outgoing interface of RT attribute of tenant's VPN instance is in down state, deleting
The RT attribute of tenant's VPN instance, retriggered configures the RT attribute of tenant's VPN instance.
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| CN109194578A (en) * | 2018-10-29 | 2019-01-11 | 中国联合网络通信集团有限公司 | A kind of activating method and device of private line service |
| CN109474506A (en) * | 2018-11-15 | 2019-03-15 | 中国联合网络通信集团有限公司 | Establish the method and device of Virtual Private Network vpn service |
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