CN108462637A - One kind being routed back to blanking method, controller and system - Google Patents
One kind being routed back to blanking method, controller and system Download PDFInfo
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- CN108462637A CN108462637A CN201611138981.1A CN201611138981A CN108462637A CN 108462637 A CN108462637 A CN 108462637A CN 201611138981 A CN201611138981 A CN 201611138981A CN 108462637 A CN108462637 A CN 108462637A
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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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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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
- H04L45/22—Alternate 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
- H04L45/70—Routing based on monitoring results
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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
- H04L45/64—Routing or path finding of packets in data switching networks using an overlay routing layer
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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
- H04L45/68—Pseudowire emulation, e.g. IETF WG PWE3
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The embodiment of the present invention provides one kind and being routed back to blanking method,Controller and system,Blanking method is routed back to applied in IPRAN,IPRAN includes first network equipment,Second network equipment,The third network equipment and the 4th network equipment,Second network equipment is primary route via the routing of first network equipment to the 4th network equipment,Second network equipment is alternate routing via the routing of the third network equipment to the 4th network equipment,4th network equipment is the purpose network equipment of primary route and alternate routing,First network equipment is next-hop of second network equipment on primary route,The third network equipment is the next-hop of second network equipment on the backup route,After service traffics are switched to alternate routing from primary route,Controller obtains status message from first network equipment,If the status message indicates that primary route is available,Then controller issues switchback instruction to second network equipment.The service traffics switchback time can be made more particularly suitable using the embodiment of the present invention.
Description
Technical field
The present invention relates to fields of communication technology more particularly to one kind being routed back to blanking method, controller and system.
Background technology
Static IP wireless access network (Internet Protocol Radio Access Network, IPRAN) scheme
Mainly use static routing technology, the equal static configurations such as each network node label, routing, without dynamic learning.
The quick heavy-route of Virtual Private Network (Virtual Private Network Fast Reroute, VPN FRR) is
Using the VPN route fast handoff technique based on VPN, the technology is in advance in remote service Provider edge router equipment
The standby usage forwarding-table item of primary PE and spare PE are set to point in (Provider Edge Router, PE), in primary PE events
Spare PE is switched to when barrier to improve reliability.Far-end PE carries out VPN FRR switchbacks in primary PE fault recoveries, if distal end
PE uses static routing, as long as far-end PE perceives the far-end PE to the traffic engineering (Traffic of primary PE
Engineering, TE) tunnel restoration, routing is to come into force, and the business of possible primary PE to other equipment is restored not yet at this time,
If the time for carrying out VPN FRR switchbacks or setting delay switchback immediately is too short, packet loss may be caused.If the switchback being arranged is prolonged
When it is long, will make flow for a long time forward on the backup route.
Invention content
The embodiment of the present invention provides one kind and being routed back to blanking method, controller and system, and issuing routing switchback by controller refers to
It enables so that the routing switchback time is more particularly suitable.
First aspect of the embodiment of the present invention provides one kind and being routed back to blanking method, is applied to IPization wireless access network
In (Internet Protocol Radio Access Network, IPRAN), which includes first network equipment, second
The network equipment, the third network equipment and the 4th network equipment, second network equipment is via first network equipment to the 4th network
The routing of equipment is primary route；Second network equipment is spare via the routing of the third network equipment to the 4th network equipment
Routing, the 4th network equipment are the purpose network equipment of primary route, and the mesh that the 4th network equipment is alternate routing
The network equipment.
The first network equipment is next-hop of second network equipment on primary route, and the third network equipment is the second net
The next-hop of network equipment on the backup route.
After service traffics are switched to alternate routing from primary route, controller obtains state from first network equipment and disappears
Breath, the status message are used to indicate whether primary route can be used.Optionally, which obtains the acquisition modes of the status message
It can be active obtaining, can also be passive acquisition.If status message instruction primary route is available, the controller is to the second network
Equipment sends switchback instruction, after second network equipment receives switchback instruction, i.e., by service traffics from alternate routing switchback to master
With routing.
Second aspect of the embodiment of the present invention provides a kind of controller, which sets with first network equipment and the second network
Standby communication, the first network equipment and second network equipment are located in IPRAN.The IPRAN can also include the third network equipment
With the 4th network equipment, which is primary route via the routing of first network equipment to the 4th network equipment.
Second network equipment is alternate routing via the routing of the third network equipment to the 4th network equipment.4th network equipment is
The purpose network equipment of primary route, while the 4th network equipment is also the purpose network equipment of alternate routing.
Above-mentioned first network equipment is next-hop of second network equipment on primary route, and the third network equipment is second
The next-hop of the network equipment on the backup route.
Above controller includes acquiring unit and transmission unit, which is used in service traffics by from primary route
After being switched to alternate routing, status message is obtained from first network equipment, which is used to indicate primary route and whether may be used
With.
If transmission unit is available for status message instruction primary route, switchback instruction is sent to second network equipment, the
After two network equipments receive switchback instruction, by service traffics from alternate routing switchback to primary route.
Third aspect present invention provides one kind and being routed back to cutting system, and it includes controller, first network that this, which is routed back to cutting system,
Equipment, second network equipment and the third network equipment.Wherein, first network equipment, second network equipment and third network are set
Standby to be located in IPRAN, which can also include the 4th network equipment.
Second network equipment is primary route, second network via the routing of first network equipment to the 4th network equipment
Equipment is alternate routing via the routing of the third network equipment to the 4th network equipment.4th network equipment be primary route and
The purpose network equipment of alternate routing.
First network equipment is next-hop of second network equipment on primary route, and the third network equipment is the second network
The next-hop of equipment on the backup route.
Controller is used for after service traffics are switched to alternate routing from primary route, and shape is obtained from first network equipment
State message, the status message are used to indicate whether primary route can be used.If status message indicates that primary route is available, the control
Device sends switchback instruction to second network equipment.
Second network equipment is instructed in response to the switchback, by service traffics from alternate routing switchback to primary route.
Fourth aspect of the embodiment of the present invention provides a kind of controller, including：Transceiver, processor and memory；The control
Device is the concrete structure for carrying second aspect functional unit.
The memory, for storing computer program instructions；
The processor is coupled to the memory, the computer program instructions for reading the memory storage, control
It makes the transceiver and executes the method that first aspect as above is provided.
What the flow performed by above-mentioned processor can be found in above-mentioned first aspect is routed back to blanking method flow, herein no longer in detail
It states.
The 5th aspect of the embodiment of the present invention also provides a kind of program recorded medium, the program which is stored
It is performed, the method that above-mentioned first aspect is provided may be implemented.
In a kind of above first aspect to possible design of the 5th aspect, if above-mentioned status message includes address resolution
The hot standby completion information of agreement (Address Resolution Protocol, ARP) or pseudo-wire (Pseudo Wire, PW) restore letter
It ceases, then the status information indicates that the primary route is available.The hot standby completion information of the ARP is used to indicate first network equipment and has obtained
The backup of all ARP entry on the third network equipment is taken, which restores information and be used to indicate the PW in the first network equipment
Restore.
In the above first aspect to the alternatively possible design of the 5th aspect, if status message includes ARP hot standby complete
Restore information at information and/or PW, then the status message indicates that the primary route is available.The hot standby completion information of the ARP is for referring to
Show that first network equipment has obtained the backup of all ARP entry on the third network equipment, which restores information and be used to indicate this
PW in first network equipment has restored.
The above first aspect to the 5th aspect alternatively possible design in, PW restore information include indicate this first
The information recovered PW of the network equipment to the 5th network equipment.5th network equipment is primary road in first network equipment
By next-hop.
In the above first aspect to the alternatively possible design of the 5th aspect, it includes the first net of instruction that PW, which restores information,
Network equipment is to the information recovered PW of the third network equipment.
In the possibility design of the above first aspect to the 5th aspect, routing switchback is executed again after the completion of ARP is hot standby, is helped
The generation that ARP entry is also needed to wait for after avoiding too early switchback to route switchback, to reduce the possibility of packet loss.The above design
PW executes routing switchback again after restoring in middle first network equipment, also needs to wait for first network after helping avoid routing switchback and sets
The recovery of standby upper PW, to reduce the possibility of packet loss.
In the above first aspect to the 5th aspect, the status message of the network equipment is obtained by controller, is referred in status message
In the case of showing that primary route is available, switchback instruction triggers alternate routing switchback is just sent to primary route, so that business
The switchback time of flow is more particularly suitable, and helping avoid switchback too early leads to flow packet loss, and helps avoid switchback too late
Flow is caused to forward on the backup route for a long time.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described.
Fig. 1 is a kind of IPRAN configuration diagrams in the prior art；
Fig. 2 is a kind of network architecture schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of flow diagram being routed back to blanking method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of controller provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of controller provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram being routed back to cutting system provided in an embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the embodiment of the present invention is described.
As shown in Figure 1, be a kind of network architecture schematic diagram of IPRAN, which includes access ring and convergence ring,
Equipment 101, equipment 102, equipment 103 and equipment 104 form access ring, 106 groups of equipment 103, equipment 104, equipment 105 and equipment
At convergence ring.
Equipment 101, equipment 102, equipment 103, equipment 104, equipment 105 and equipment 106 are Packet Transport Network (Packet
Transport Network, PTN) equipment.Equipment 101 is communicated with base station A, and equipment 102 is communicated with base station B, and equipment
101 and equipment 102 dispose VLL (Virtual Leased Line, VLL) dual homed to equipment 103 and equipment 104；
Equipment 103 and equipment 104 are both two-layer equipment and three-layer equipment, and equipment 103 and equipment 104 access three layers of void using VLL
Quasi- dedicated network (Virtual Private Network, VPN) realizes two layers to three layers of business conversion；It equipment 103 and sets
Standby 104 forward to the VPN using three layers between equipment 105 and equipment 106.
Needed in three layers of equipment deployment VPN quick heavy-routes (Virtual Private Network Fast Reroute,
VPN FRR), to increase service reliability protection when node failure；As equipment 105 to equipment 103 and equipment 104 exist
VPN FRR.Equipment 105 includes the primary route and alternate routing to the identical purpose network equipment such as base station A, primary route and
Alternate routing is static routing, and primary route passes through equipment 103, and alternate routing passes through equipment 104.When 103 failure of equipment,
Equipment 105 is perceived by operation management maintainance (Operation Administration and Maintenance, OAM) and is set
Standby traffic engineering (Traffic Engineering, TE) tunnel failure between 105 and equipment 103, triggering VPN FRR switchings,
Primary route is switched to alternate routing, service traffics are switched to alternate routing by primary route, i.e., are sent to business datum
The next-hop device 104 of alternate routing.
When 103 fault recovery of equipment, equipment 105 executes VPN FRR switchbacks, by alternate routing switchback to primary route,
By service traffics by alternate routing switchback to primary route, i.e., business datum is sent to the next-hop device 103 of primary route.
But due to being static routing, as long as the traffic engineering tunnel that equipment 105 perceives equipment 103 is restored, routing comes into force,
The business of possible equipment 103 to the equipment such as equipment 101 and equipment 102 is restored not yet at this time, if VPN FRR switchbacks immediately,
It may lead to flow packet loss.
It attempts to solve the problems, such as this by the switchback delay that VPN FRR are arranged in the prior art, i.e., is arranged based on experience value, example
It is 7 minutes that such as unified setting, which waits for turnaround time (Wait to Restore, WTR),.Since equipment is different, this unified setting
The time of WTR can cause the switchback time not accurate, for example assume that 103 service recovery time of equipment is slow, and VPN FRR's 7 minutes prolongs
When the time in, equipment 103 without restore with equipment 101, whole business of equipment 102 and equipment 104.105 switchback of equipment at this time
After packet loss overlong time, lower extension base station will be caused all to exit service state.If overlong time is arranged in WTR, flow will be made long
Time forwards on the backup route, cannot be in time used after primary route recovery to improve primary route utilization rate.
When primary route is capable of providing communication quality more better than alternate routing, the communication resource can be caused to waste, in addition be also possible to increase
Add other hidden danger such as flow congestion, secondary failure.
The embodiment of the present invention proposes a solution, as shown in Fig. 2, IPRAN network rack of the embodiment of the present invention in Fig. 1
Increase controller 107 on the basis of structure, controller 107 can be communicated with equipment 103 and equipment 105.
For example, equipment 101, equipment 102, equipment 103, equipment 104, equipment 105 and equipment 106 are that service provides
Quotient edge (Provider Edge, PE) equipment.Equipment 101 and equipment 102 are user side Provider Edge (User
Provider Edge, UPE) equipment, equipment 103 and equipment 104 are upper layer service provider edge (Superstratum
Provider Edge, SPE) equipment, equipment 105 and equipment 106 are network core Provider Edge (Network
Provider Edge, NPE) equipment.
Controller 107 obtains whether status message instruction primary route can be used from equipment 103 or equipment 105；Or equipment
103 or 105 active of equipment oneself state is reported on controller 107, controller is according to the instruction of status message to equipment 105
Or equipment 103 sends routing switchback instruction so that the service switchback time is more particularly suitable, switchback and can flow after reducing switchback in time
Measure packet loss.
Referring to Fig. 3, Fig. 3, which is one kind provided in an embodiment of the present invention, is routed back to blanking method, this is routed back to blanking method can be with
Applied in the network architecture shown in Fig. 2 for increasing controller, that is, pass through the letter between controller and equipment 103 or equipment 105
Routing switchback is realized in breath interaction；As shown in figure 3, the described method comprises the following steps：
S100, controller obtain status message from the first network equipment, and the status message is used to indicate the master
Whether can be used with routing；
S101, if the status message indicates that the primary route is available, the controller is to second network equipment
Send switchback instruction, switchback instruction is for triggering second network equipment by service traffics from the alternate routing switchback
To the primary route.
The first network equipment of the embodiment of the present invention can be the equipment 103 in Fig. 2, and second network equipment can be Fig. 2
In equipment 105, the third network equipment can be Fig. 2 in equipment 104, the 4th network equipment be the embodiment of the present invention it is primary
Routing and alternate routing the purpose network equipment, the purpose network equipment can be equipment 101, equipment 102, base station A, base station B, with
The network equipment of base station A communications or the network equipment communicated with base station B, the 5th network equipment are the equipment 101 in Fig. 2.
In one embodiment, IPRAN may include first network equipment, second network equipment, the third network equipment and
4th network equipment, controller are located at outside the IPRAN；Alternatively, the IPRAN may include controller, first network equipment, second
The network equipment, the third network equipment and the 4th network equipment.
Second network equipment is primary route via the routing of first network equipment to the 4th network equipment, and the second network is set
The standby routing via the third network equipment to the 4th network equipment is alternate routing.Continuation is carried out by taking the network architecture of Fig. 2 as an example
Illustrate, primary route is the routing that equipment 105 reaches the purpose network equipment via equipment 103, and alternate routing is equipment 105
The routing of the purpose network equipment is reached via equipment 104.
There is the primary route and alternate routing to the purpose network equipment in equipment 105.The primary route and alternate routing
Can be that the routing of VPN instance internet protocol version 4 (Internet Protocol version 4, IPv4) address family is
VPNv4 is route.Primary route and the destination address of alternate routing for example all can be the purpose network equipment IP address.
First network equipment is next-hop of second network equipment on primary route, and the third network equipment is the second network
The next-hop of equipment on the backup route.Continuation is illustrated by taking Fig. 2 as an example, is the next-hop of the primary route of equipment 105
Next-hop for equipment 103, the alternate routing of equipment 105 is equipment 104.Optionally, primary route and alternate routing can be with
There are respective label and Tunnel Identifier, is forwarded for flow.
As shown in Fig. 2, equipment 104 is the stand-by equipment of equipment 103, equipment 106 is the stand-by equipment of equipment 105, equipment
103 be SPE equipment, and equipment 105 is NPE equipment, and the embodiment of the present invention is said so that first network equipment is equipment 103 as an example
It is bright, when 103 failure of equipment, equipment 105 by OAM detect NPE equipment to SPE equipment traffic engineering tunnel failure, such as it is lasting
A period of time does not receive connectivity testing message etc., and the service traffics by the equipment 103 switch to equipment by VPN FRR
104, i.e., equipment 101 or equipment 102 are forwarded to by equipment 104.
After the traffic engineering tunnel of equipment 105 to equipment 103 is restored, come into force as the primary route of static routing, into VPN
In FRR switchback delay states, controller 107 obtains the status message in equipment 103, and the acquisition can pass through controller 107
Netconf interfaces between equipment 103 are obtained.For example, the netconf interfaces by controller obtain in equipment 103
The whether available status message of primary route, primary route, which is equipment 105, arrives the road of the purpose network equipment via equipment 103
By.
If the status message instruction primary route that controller obtains is available, controller 107 sends switchback to equipment 105 and refers to
It enables, switchback instruction is for triggering equipment 105 by service traffics from alternate routing switchback to primary route.
It should be noted that routing switchback is equipment 105 generates forwarding-table item according to main route table items, forwarding table is utilized
To 103 forwarding data packets of equipment.
Optionally, for controller 107 before equipment 103 obtains status message, controller 107 obtains primary road from equipment 103
By whether the information activated；Specifically, as shown in Fig. 2, first network equipment is equipment 103, equipment 105 arrives the TE of equipment 103
After tunnel restoration, primary route activates, and into VPN FRR switchback delay states, controller for example passes through netconf interfaces
Read the primary route (example of route forwarding table (reading order is, for example, display ip routing table) in equipment 103
If purpose network appliance IP address is 100.1.1.0/24) whether activate, when not finding corresponding activated routing, no
The instruction whether available status message of primary route is obtained from equipment 103, to reduce network burden and facility load.
Optionally, controller 107 can periodically to the transmission of equipment 103 STATUS ENQUIRY message, (frequency can be per minute looks into
Once), STATUS ENQUIRY message is for inquiring whether primary route can be used.Optionally, after VPN FRR switchbacks, controller
Do not retransmit STATUS ENQUIRY message.Optionally, when there are a plurality of main roads by needing inquiry, controller can be by a plurality of main road
By STATUS ENQUIRY message transmit.
Optionally, whether 103 active of equipment is used to indicate primary route to controller report status message, the status message
It can use.After 103 fault recovery of equipment, by status message active reporting to controller.This, which is reported, can for example pass through netconf
Interface is completed.For example, equipment 103 detects the recovery state of itself, and the recovery state encapsulation detected is disappeared for state
Breath is sent to controller.
Optionally, if the status message, which includes the hot standby completion information of Address Resolution Protocol ARP and/or pseudo-wire PW, restores letter
Breath, then the status message instruction primary route is available, and the hot standby completion information of ARP is used to indicate the equipment 103
The backup of all ARP entry in equipment 104 is obtained, the PW restores the PW that information is used to indicate in equipment 103 and restored.
PW recoveries information may include the recovered information of the PW of indicating equipment 103 to equipment 101；Or the PW is extensive
Complex information may include the recovered information of the PW of indicating equipment 103 to equipment 104；Or PW recoveries information may include
The PW of recovered information and indicating equipment 103 to the equipment 104 of PW of indicating equipment 103 to equipment 101 is recovered
Information.Wherein equipment 103 to equipment 104 PW for example can be double mode interconnection (dual mode interconnection,
DNI)PW。
In the embodiment of the present invention, first network equipment can be that the SPE equipment in the IPRAN network architectures of Fig. 2 is such as set
Standby 103, can also be NPE equipment such as equipment 105.If service traffics flow to equipment 105 by equipment 103, first network is set
Standby is equipment 105, and primary route is that equipment 103 arrives signaling entity (Mobility Management via equipment 105
Entity, MME) or gateway (Serving Gate Way, SGW) routing, alternate routing be equipment 103 via equipment
106 arrive the routing of the MME or SGW, and primary route is identical with the purpose network equipment of alternate routing.If service traffics are by equipment
105 flow to equipment 103, then first network equipment is equipment 103, and primary route is that equipment 105 arrives purpose network via equipment 103
The routing of equipment, alternate routing are the routing that equipment 105 arrives the purpose network equipment via equipment 103.
In the embodiment of the present invention, if controller 107 determines status message, instruction primary route is available, the controller 107 to
Second network equipment issues the instruction of VPN FRR switchbacks, to trigger second network equipment by service traffics from alternate routing switchback
To primary route.
Specific optional, controller 107 sends routing switchback instruction to equipment 105, and the transmission for example passes through netconf
Interface.Equipment 105 receives and service traffics is introduced primary route from alternate routing after routing switchback instructs.It is further alternative,
If controller can not receive on the status message that equipment 103 reports or controller query facility 103 primary route always
Unavailable i.e. un-activation then remains routing switchback delay state, until the traffic engineering tunnel also failure of equipment 105 to equipment 104
Switchback again.
As shown in Fig. 2, if service traffics are from equipment 105 to equipment 103, which is equipment 103, should
Second network equipment is equipment 105, and controller 107 issues switchback instruction to equipment 105, and equipment 105 receives switchback instruction
Afterwards, by service traffics switchback to primary route.
If service traffics are from equipment 103 to equipment 105, which is equipment 105, which sets
Standby is equipment 103, and controller issues switchback instruction to equipment 103, after equipment 103 receives switchback instruction, by service traffics
Switchback is to primary route.
Specific optional, controller 107 can also obtain status message from equipment 105.Such as when 105 fault recovery of equipment
It actively sends status message and periodically inquires whether primary route can be used to equipment 105 to controller 107 or controller 107.If
The status message instruction primary route that controller 107 obtains is available, i.e., issues switchback instruction to equipment 103, by equipment 103 by industry
Business flow switches to equipment 105 by equipment 106.Specific process flow is referred to the failure that first network equipment is equipment 103
Process flow after recovery, details are not described herein.
Wherein be similar to the mutual standby relationship of equipment 103 and equipment 104, equipment 105 as host apparatus, equipment 106 as
Stand-by equipment.Optionally, for obtaining status message from equipment 105, the hot standby completion information indicating equipment of the ARP 105 has obtained
The backup of all ARP entry on taking equipment 106.Optionally, for obtaining status message from equipment 105, the PW restores information
The PW being used to indicate in equipment 105 has restored.Optionally, for obtaining status message from equipment 105, the PW has restored information
May include indicating equipment 105 to equipment 106 the information restored of PW and/or indicating equipment 105 to MME or SGW PW
The information of recovery.Optionally, equipment 105 and equipment 106 can establish DNI PW.
Provided in an embodiment of the present invention to be routed back to blanking method, controller obtains the status message of first network equipment, in shape
State message indicate primary route it is available in the case of, just to second network equipment send switchback instruction triggers alternate routing switchback to
Primary route, so that the switchback time of service traffics is more particularly suitable.On the one hand, in the state obtained from first network equipment
Message indicated to carry out switchback again after primary route is available, and helping avoid switchback too early leads to flow packet loss；On the other hand,
The status message is actively or passively obtained in time help avoid switchback too late and cause flow turn on the backup route for a long time
Hair wastes the communication resource.
With reference to Fig. 4 and Fig. 5, for the structural schematic diagram provided in an embodiment of the present invention for routeing the controller of switchback, institute
Controller and first network equipment and the second network device communications are stated, first network equipment and second network equipment are located at IPRAN
In, IPRAN further includes the third network equipment and the 4th network equipment, and second network equipment is via first network equipment to the 4th net
The routing of network equipment is primary route, and second network equipment is spare via the routing of the third network equipment to the 4th network equipment
Routing, the 4th network equipment are the purpose network equipment of primary route and alternate routing, and first network equipment is that the second network is set
The standby next-hop on the primary route, the third network equipment are that second network equipment is next in the alternate routing
It jumps, as shown in figure 4, the controller may include：Acquiring unit 401 and transmission unit 402.The controller can be used for shown in Fig. 2
In scene, and execute Fig. 3 the methods S100 and S101.
Detail can refer to the description in above method, and details are not described herein.
For example, acquiring unit 401, for after service traffics are switched to the alternate routing from the primary route from
The first network equipment obtains status message, and the status message is used to indicate whether the primary route can be used；
Transmission unit 402, if indicating that the primary route is available for the status message, to second network equipment
Send switchback instruction, switchback instruction is for triggering second network equipment by service traffics from the alternate routing switchback
To the primary route.
Optionally, if the status message, which includes the hot standby completion information of Address Resolution Protocol ARP or pseudo-wire PW, restores information,
Then the status message indicates that the primary route is available, and the hot standby completion information of ARP is used to indicate the first network and sets
The standby backup for having obtained all ARP entry on the third network equipment, the PW restore information and are used to indicate first net
PW in network equipment has restored.
Optionally, if the status message, which includes the hot standby completion information of Address Resolution Protocol ARP and pseudo-wire PW, restores information,
Then the status message indicates that the primary route is available, and the hot standby completion information of ARP is used to indicate the first network and sets
The standby backup for having obtained all ARP entry on the third network equipment, the PW restore information and are used to indicate first net
PW in network equipment has restored.
Optionally, it includes indicating that the PW of first network equipment to the 5th network equipment has restored that the PW, which restores information,
Information, the 5th network equipment be the first network equipment on primary route next-hop.
Optionally, the PW restore information include the instruction first network equipment to the third network equipment PW
The information of recovery.
It is corresponding, as shown in figure 5, be a kind of structural schematic diagram of controller provided in an embodiment of the present invention, as shown,
The controller may include：Transceiver 5001 and processor 5002.Processor 5002 is used to control the operation of the controller, including control
Transceiver 5001 processed carry out data transmission (including receive and/or send, for example, with first network equipment and second network equipment
It is communicated, specifically for example obtain status message from first network equipment and sends switchback instruction etc. to second network equipment).
The controller can be used in scene shown in Fig. 2, and execute Fig. 3 the methods S100 and S101.Detail can refer to
Description in upper method, details are not described herein.
Further, the controller can also include memory 5003, memory 5003 may include read-only memory and
Random access memory, for providing instruction and data to processor 5002.Memory 5003 can be integrated in processor 5002
In, it can also be independently of processor 5002.The a part of of memory 5003 can also include non-volatile row random access memory
(NVRAM).The various components of the device are coupled by bus system, and wherein bus system 5009 may include that data are total
Line.Bus system 5009 can also include power bus, controlling bus and status signal bus in addition.But illustrate in order to clear
See, various buses are all designated as bus system 5009 in figure.
Optionally, transceiver 5001 be used for after service traffics are switched to the alternate routing from the primary route from
The first network equipment obtains status message, and the status message is used to indicate whether the primary route can be used；
If transceiver 5001 is additionally operable to the status message and indicates that the primary route is available, to second network equipment
Send switchback instruction, switchback instruction is for triggering second network equipment by service traffics from the alternate routing switchback
To the primary route.
The flow that the embodiment of the present application discloses can be applied in processor 5002, or be realized by processor 5002.
During realization, each step for the flow which realizes can pass through the integrated logic circuit of the hardware in processor 5002
Or the instruction of software form is completed.Processor 5002 can be general processor, digital signal processor, special integrated electricity
Road, field programmable gate array either other programmable logic device, discrete gate or transistor logic, discrete hardware group
Part may be implemented or execute disclosed each method, step and logic diagram in the embodiment of the present application.General processor can be with
It is microprocessor or any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present application, can direct body
Be now that hardware processor executes completion, or in processor hardware and software unit combine and execute completion.Software unit can
To be located at random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory are posted
In the storage medium of this fields such as storage maturation.The storage medium is located at memory 5003, and processor 5002 reads memory
Information in 5003 completes the step of embodiment of the present invention indicates flow in conjunction with its hardware.
Fig. 6 is please referred to, is a kind of structural schematic diagram being routed back to cutting system provided in an embodiment of the present invention, as shown,
The embodiment of the present invention be routed back to cutting system include controller (controller in such as Fig. 2 to Fig. 5), first network equipment (such as
Equipment 103 in Fig. 2 or equipment 105), second network equipment (such as the equipment 105 in Fig. 2 or equipment 103) and third network
Equipment (such as the equipment 104 in Fig. 2 or equipment 106), wherein the first network equipment, second network equipment and described
The third network equipment is located in IPization wireless access network IPRAN, and the IPRAN further includes the 4th network equipment, second net
Network equipment is primary route, second network equipment via the routing of the first network equipment to the 4th network equipment
It is alternate routing via the routing of the third network equipment to the 4th network equipment, the 4th network equipment is described
The purpose network equipment of primary route and the alternate routing, the first network equipment are second network equipment described
Next-hop on primary route, the third network equipment are that second network equipment is next in the alternate routing
It jumps；
The controller, for after service traffics are switched to the alternate routing from the primary route from described
One network equipment obtains status message, and the status message is used to indicate whether the primary route can be used；If the state disappears
Breath indicates that the primary route is available, and switchback instruction is sent to second network equipment；
Second network equipment, for being instructed in response to the switchback, by service traffics from the alternate routing switchback
To the primary route.
The system can be used in scene shown in Fig. 2, and execute Fig. 3 the methods.Controller in the system can be
Controller in Fig. 2 to Fig. 5, detail can refer to the description in above method, and details are not described herein.
Optionally, if the status message, which includes the hot standby completion information of Address Resolution Protocol ARP or pseudo-wire PW, restores information,
Then the status message indicates that the primary route is available, and the hot standby completion information of ARP is used to indicate the first network and sets
The standby backup for having obtained all ARP entry on the third network equipment, the PW restore information and are used to indicate first net
The PW of network equipment to the third network equipment has restored and/or the first network equipment is extensive to the PW of the 5th network equipment
Multiple, the 5th network equipment is the next-hop of the primary route in the first network equipment.
Optionally, if the status message, which includes the hot standby completion information of Address Resolution Protocol ARP and pseudo-wire PW, restores information,
Then the status message indicates that the primary route is available, and the hot standby completion information of ARP is used to indicate the first network and sets
The standby backup for having obtained all ARP entry on the third network equipment, the PW restore information and are used to indicate first net
The PW of network equipment to the third network equipment has restored and/or the first network equipment is extensive to the PW of the 5th network equipment
Multiple, the 5th network equipment is the next-hop of the primary route in the first network equipment.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, knots
Structure or characteristic can in any suitable manner combine in one or more embodiments.In various embodiments of the present invention, on
The size for stating the serial number of each process is not meant that the order of the execution order, and the execution sequence of each process should be with its function and inherence
Logic determines that the implementation process of the embodiments of the invention shall not be constituted with any limitation.
In addition, the terms " system " and " network architecture " are often used interchangeably herein.The terms
"and/or", only a kind of incidence relation of description affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, it can
To indicate：Individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent
Forward-backward correlation object is a kind of relationship of "or".
It should be understood that in the embodiment of the present application, " B corresponding with A " indicates that B is associated with A, and B can be determined according to A.But
It should also be understood that determining that B is not meant to determine B only according to A according to A, B can also be determined according to A and/or other information.
In the embodiment of the present application, " at least one of A, B or C " expression selected from set (A, B, C) it is at least one, such as A, B, C, A
And B, A and C, B and C, alternatively, A and B and C etc..Descriptions such as " the first A " " the 2nd A " in the embodiment of the present application, are only used for distinguishing
Multiple A are not used to express other meanings.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware
With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This
A little functions are implemented in hardware or software actually, depend on the specific application and design constraint of technical solution.Specially
Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be the indirect coupling by some transceivers, device or unit
It closes or communicates to connect, can also be electricity, mechanical or other forms connections.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown can be or may not be physical unit, you can be located at a place, or may be distributed over multiple nets
On network unit.Some or all of unit therein can be selected according to the actual needs to realize the embodiment of the present invention
Purpose.
In addition, each functional unit in each embodiment of the present invention can integrate in a processor, can also be
Each unit physically exists alone, and can also be during two or more units are integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with
It is realized with hardware realization or firmware realization or combination thereof mode.It when implemented in software, can be by above-mentioned function
Storage in computer-readable medium or as on computer-readable medium one or more instructions or code be transmitted.Meter
Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another
Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With
For this but it is not limited to：Computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk
Storage medium or other magnetic storage apparatus or can be used in carry or store with instruction or data structure form expectation
Program code and can be by any other medium of computer access.In addition.Any connection appropriate can become computer
Readable medium.For example, if software is using coaxial cable, optical fiber cable, twisted-pair feeder, number STA lines (DSL) or such as red
The wireless technology of outside line, radio and microwave etc is transmitted from website, server or other remote sources, then coaxial electrical
The wireless technology of cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless and microwave etc is included in affiliated medium
In fixing.As used in the present invention, disk (Disk) and dish (disc) include compressing optical disc (CD), laser disc, optical disc, number to lead to
With optical disc (DVD), floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come optical duplication
Data.Above combination above should also be as being included within the protection domain of computer-readable medium.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and 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 so that
A stream in flow chart can be achieved in the instruction executed by the computer or the processor of other programmable data processing devices
The function of being specified in journey or multiple flows and/or one box of 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 a flow of flow chart or multiple flows and/or block diagram
A box or multiple boxes in specify function the step of.
Claims (13)
1. one kind being routed back to blanking method, it is applied in IPization wireless access network IPRAN, which is characterized in that the IPRAN includes the
One network equipment, second network equipment, the third network equipment and the 4th network equipment, second network equipment is via described
The routing of one network equipment to the 4th network equipment is primary route, and second network equipment is via the third network
The routing of equipment to the 4th network equipment is alternate routing, and the 4th network equipment is the primary route and described standby
With the purpose network equipment of routing, the first network equipment is that second network equipment is next on the primary route
It jumps, the third network equipment is next-hop of second network equipment in the alternate routing, and service traffics are by from institute
It states after primary route is switched to the alternate routing, this method includes：
Controller obtains status message from the first network equipment, and whether the status message is used to indicate the primary route
It can use；
If the status message indicates that the primary route is available, the controller sends switchback to second network equipment and refers to
It enables, switchback instruction is for triggering second network equipment by service traffics from the alternate routing switchback to described primary
Routing.
2. the method as described in claim 1, which is characterized in that if the status message includes that Address Resolution Protocol ARP is hot standby
It completes information or pseudo-wire PW restores information, then the status message indicates that the primary route is available, the hot standby completion letters of ARP
Breath is used to indicate the backup that the first network equipment has obtained all ARP entry on the third network equipment, and the PW is extensive
The PW that complex information is used to indicate in the first network equipment has restored.
3. the method as described in claim 1, which is characterized in that if the status message includes that Address Resolution Protocol ARP is hot standby
It completes information and pseudo-wire PW restores information, then the status message indicates that the primary route is available, the hot standby completion letters of ARP
Breath is used to indicate the backup that the first network equipment has obtained all ARP entry on the third network equipment, and the PW is extensive
The PW that complex information is used to indicate in the first network equipment has restored.
4. method as claimed in claim 2 or claim 3, which is characterized in that it includes indicating the first network that the PW, which restores information,
The information that the PW of equipment to the 5th network equipment has restored, the 5th network equipment are primary in the first network equipment
The next-hop of routing.
5. the method as described in claim 2 to 4 any one, which is characterized in that it includes described in instruction that the PW, which restores information,
The information that the PW of first network equipment to the third network equipment has restored.
6. a kind of controller, which is characterized in that the controller and first network equipment and the second network device communications, described the
One network equipment and second network equipment are located in IPization wireless access network IPRAN, and the IPRAN further includes third network
Equipment and the 4th network equipment, second network equipment is via the first network equipment to the road of the 4th network equipment
By for primary route, second network equipment is standby via the routing of the third network equipment to the 4th network equipment
With routing, the 4th network equipment is the purpose network equipment of the primary route and the alternate routing, first net
Network equipment is next-hop of second network equipment on the primary route, and the third network equipment is second net
Next-hop of the network equipment in the alternate routing, the controller include：
Acquiring unit, for after service traffics are switched to the alternate routing from the primary route from the first network
Equipment obtains status message, and the status message is used to indicate whether the primary route can be used；
Transmission unit is sent back if indicating that the primary route is available for the status message to second network equipment
Cut instruction, the switchback instruction is for triggering second network equipment by service traffics from the alternate routing switchback to described
Primary route.
7. controller as claimed in claim 6, which is characterized in that if the status message includes Address Resolution Protocol ARP heat
Standby to complete information or pseudo-wire PW recovery information, then the status message indicates that the primary route is available, the hot standby completions of ARP
Information is used to indicate the backup that the first network equipment has obtained all ARP entry on the third network equipment, the PW
Restore the PW that information is used to indicate in the first network equipment to have restored.
8. controller as claimed in claim 6, which is characterized in that if the status message includes Address Resolution Protocol ARP heat
Standby to complete information and pseudo-wire PW recovery information, then the status message indicates that the primary route is available, the hot standby completions of ARP
Information is used to indicate the backup that the first network equipment has obtained all ARP entry on the third network equipment, the PW
Restore the PW that information is used to indicate in the first network equipment to have restored.
9. controller as claimed in claim 7 or 8, which is characterized in that it includes indicating first net that the PW, which restores information,
The information that the PW of network equipment to the 5th network equipment has restored, the 5th network equipment are the master in the first network equipment
With the next-hop of routing.
10. the controller as described in claim 7 to 9 any one, which is characterized in that it includes instruction institute that the PW, which restores information,
The information that the PW for stating first network equipment to the third network equipment has restored.
11. one kind being routed back to cutting system, which is characterized in that including controller, first network equipment, second network equipment and third
The network equipment, wherein the first network equipment, second network equipment and the third network equipment are located at IPization wirelessly
In access net IPRAN, the IPRAN further includes the 4th network equipment, and second network equipment is set via the first network
The standby routing to the 4th network equipment is primary route, and second network equipment is via the third network equipment to institute
The routing for stating the 4th network equipment is alternate routing, and the 4th network equipment is the primary route and the alternate routing
The purpose network equipment, the first network equipment is next-hop of second network equipment on the primary route, described
The third network equipment is next-hop of second network equipment in the alternate routing；
The controller, for after service traffics are switched to the alternate routing from the primary route from first net
Network equipment obtains status message, and the status message is used to indicate whether the primary route can be used；If the status message refers to
Show that the primary route is available, switchback instruction is sent to second network equipment；
Second network equipment, for being instructed in response to the switchback, by service traffics from the alternate routing switchback to institute
State primary route.
12. system as claimed in claim 11, which is characterized in that if the status message includes Address Resolution Protocol ARP heat
Standby to complete information or pseudo-wire PW recovery information, then the status message indicates that the primary route is available, the hot standby completions of ARP
Information is used to indicate the backup that the first network equipment has obtained all ARP entry on the third network equipment, the PW
The PW that recovery information is used to indicate the first network equipment to the third network equipment has restored and/or the first network
The PW of equipment to the 5th network equipment has restored, and the 5th network equipment is the primary route in the first network equipment
Next-hop.
13. system as claimed in claim 11, which is characterized in that if the status message includes Address Resolution Protocol ARP heat
Standby to complete information and pseudo-wire PW recovery information, then the status message indicates that the primary route is available, the hot standby completions of ARP
Information is used to indicate the backup that the first network equipment has obtained all ARP entry on the third network equipment, the PW
The PW that recovery information is used to indicate the first network equipment to the third network equipment has restored and/or the first network
The PW of equipment to the 5th network equipment has restored, and the 5th network equipment is the primary route in the first network equipment
Next-hop.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138981.1A CN108462637A (en) | 2016-12-12 | 2016-12-12 | One kind being routed back to blanking method, controller and system |
| PCT/CN2017/113953 WO2018107974A1 (en) | 2016-12-12 | 2017-11-30 | Routing switching-back method, and controller and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138981.1A CN108462637A (en) | 2016-12-12 | 2016-12-12 | One kind being routed back to blanking method, controller and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108462637A true CN108462637A (en) | 2018-08-28 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138981.1A Pending CN108462637A (en) | 2016-12-12 | 2016-12-12 | One kind being routed back to blanking method, controller and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108462637A (en) |
| WO (1) | WO2018107974A1 (en) |
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| CN113783791A (en) * | 2020-06-10 | 2021-12-10 | ***通信集团山东有限公司 | Transmission control method and device suitable for packet transport network and transmission equipment |
| CN114844826A (en) * | 2021-01-14 | 2022-08-02 | 瞻博网络公司 | Asynchronous socket replication between nodes of a network |
| US11962507B1 (en) | 2021-03-10 | 2024-04-16 | Juniper Networks, Inc. | Estimating standby socket window size during asynchronous socket replication |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111885630B (en) * | 2020-07-01 | 2023-06-30 | 中国联合网络通信集团有限公司 | Data transmission method and communication device |
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| CN104518960A (en) * | 2014-12-05 | 2015-04-15 | 华为技术有限公司 | Delayed back-switching method, devices and system |
| US20150256383A1 (en) * | 2014-03-05 | 2015-09-10 | Electronics And Telecommunications Research Institute | Method for transiting operation mode of routing processor |
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| US20150256383A1 (en) * | 2014-03-05 | 2015-09-10 | Electronics And Telecommunications Research Institute | Method for transiting operation mode of routing processor |
| CN104518960A (en) * | 2014-12-05 | 2015-04-15 | 华为技术有限公司 | Delayed back-switching method, devices and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113783791A (en) * | 2020-06-10 | 2021-12-10 | ***通信集团山东有限公司 | Transmission control method and device suitable for packet transport network and transmission equipment |
| CN114844826A (en) * | 2021-01-14 | 2022-08-02 | 瞻博网络公司 | Asynchronous socket replication between nodes of a network |
| US11671309B2 (en) | 2021-01-14 | 2023-06-06 | Juniper Networks, Inc. | Asynchronous socket replication between nodes of a network |
| CN114844826B (en) * | 2021-01-14 | 2024-04-19 | 瞻博网络公司 | Asynchronous socket replication between nodes of a network |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018107974A1 (en) | 2018-06-21 |
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Application publication date: 20180828 |