CN109039707A - The method and system of the rapid active-standby switching of Vxlan channel service - Google Patents
The method and system of the rapid active-standby switching of Vxlan channel service Download PDFInfo
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- CN109039707A CN109039707A CN201810726253.5A CN201810726253A CN109039707A CN 109039707 A CN109039707 A CN 109039707A CN 201810726253 A CN201810726253 A CN 201810726253A CN 109039707 A CN109039707 A CN 109039707A
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- Prior art keywords
- vxlan
- channel
- bfd
- opposite end
- business
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
Abstract
The invention discloses a kind of method and system of the rapid active-standby switching of Vxlan channel service, are related to the business transmission field of Vxlan.The step of this method includes: that the channel Vxlan and the BFD linkage channel Vxlan are established between source node and destination node；Source node and destination node send BFD detection messages to opposite end according to the specified period on the BFD linkage channel Vxlan；Source node or destination node, if not receiving the BFD detection messages of opposite end transmission, carry out the business masterslave switchover in the channel Vxlan in specified period.The present invention can significantly shorten the channel the Vxlan masterslave switchover time, and then reduce the probability because of masterslave switchover bring network failure and data packetloss not in time.
Description
Technical field
The present invention relates to the business transmission fields of Vxlan, and in particular to a kind of rapid active-standby switching of Vxlan channel service
Method and system.
Background technique
With the arrival of mobile internet era, network function virtualization is a trend of the development of networking at this stage, respectively
Big operator also increases the investment to network function virtualization.Under the overall background of network function virtualization, virtual machine scale
It is limited by network specification, in big double layer network environment, the data message of virtual machine is by inquiring Mac address table (Media
Access Contro, physical address table) carry out two layers of forwarding, i.e., the quantity of data message is no more than in Mac address table
The capacity of Mac number of addresses, such Mac address table will limit the quantity of virtual machine.Current mainstream network isolation technology is
Vlan (Virtual Local Area Network, virtual LAN) or VPN (Virtual Private Network, void
Quasi- dedicated network) technology, since Vlan TAG (Vlan label) only has 12 bits to be only capable of indicating 4096 Vlan ID, Vlan ID
Negligible amounts, be unable to satisfy the demand of a large number of users group in virtual network, and be unable to satisfy network dynamic adjustment.
It is limited for virtual machine scale by network specification, IETF proposes a kind of Vxlan (Virtual Extensible
LAN, empty like extension local area network) type message encapsulation format.The message for the Vxlan type that virtual machine issues is encapsulated in UDP
In the data portion of (User Datagram Protocol, User Datagram Protocol) message, and use the IP/ of physical network
Encapsulation of the address Mac as outer layer head.Three layers of network below are only shown as with conventional UDP message, but for having
The protocol module of the head Vxlan decapsulation, can decapsulate the data portion of Vxlan message, and which is identified belonging to outgoing packet
The channel Vxlan.A Mac address list item is allowed to correspond to a plurality of Vxlan after carrying out message encapsulation using the head Vxlan
Channel；Therefore, Vxlan greatly reduces demand of the big double layer network to Mac address specification.
Due to the high speed development of system for cloud computing, for the limitation of Network Isolation ability, Vxlan introduces similar Vlan
The user identifier of ID, referred to as VNI (Vxlan Network ID, Vxlan network ID)；VNI is made of 24 bits, can be supported more
Up to the Vxlan network management section of 16M ((224-1)/10242), to meet a large amount of user identifier；For virtual machine (vm) migration
Range is limited by the network architecture, constructs big double layer network by Vxlan, ensure that in virtual migration the IP address of virtual machine,
The parameters such as the address Mac remain unchanged.
It follows that network specification dilatation ability, Network Isolation ability and the virtual machine (vm) migration ability of Vxlan compared with
It is good；All big enterprises also all carry out business transmission using the channel Vxlan.
But obtain according to investigations, when the existing channel Vxlan carries out business transmission, the convergent duration in the channel Vxlan (into
The time of row masterslave switchover) it is 300ms (millisecond) or more, which can bring network failure, and then mass data occurs
The case where packet loss.
Summary of the invention
In view of the deficiencies in the prior art, present invention solves the technical problem that are as follows: how significantly to shorten the channel Vxlan
The masterslave switchover time, and then reduce the probability because of masterslave switchover bring network failure and data packetloss not in time.
To achieve the above objectives, the method for the rapid active-standby switching of Vxlan channel service provided by the invention, including it is following
Step:
S1: the channel Vxlan is established between source node and destination node, goes to S2；
S2: the BFD linkage channel Vxlan between source node and destination node goes to S3；
S3: source node and destination node send BFD detection report to opposite end on the BFD linkage channel Vxlan, according to the specified period
Text goes to S4；
S4: source node or destination node, if not receiving the BFD detection messages of opposite end transmission, carry out in specified period
The business masterslave switchover in the channel Vxlan.
Based on the above technical solution, the process of S1 includes: the network virtualization platform of source node and destination node, is led to
After crossing the business configuration that control plane carries out the channel Vxlan, the business configuration in the channel Vxlan is issued to Forwarding plane, is forwarded
Plane establishes the channel Vxlan for sending Vxlan service message according to the business configuration in the channel Vxlan；The process packet of S2
Include: the network virtualization platform of source node and destination node carries out the business configuration in the BFD linkage channel Vxlan by control plane
Afterwards, the business configuration in the BFD linkage channel Vxlan is issued to Forwarding plane, Forwarding plane is according to the BFD linkage channel Vxlan
Business configuration establishes the BFD linkage channel Vxlan.
Based on the above technical solution, the business configuration in the channel Vxlan includes VNI, local terminal IP and opposite end IP,
The opposite end of source node is destination node, and the opposite end of destination node is source node；The business configuration in the BFD linkage channel Vxlan includes
BFD ID, VNI, local terminal IP and opposite end IP, VNI, local terminal IP and opposite end IP are identical as the business configuration in the channel Vxlan.
Based on the above technical solution, the process of S4 includes: source node or destination node in specified period, if not receiving
The BFD detection messages sent to opposite end, then generate Link Failure message and be sent to control plane；Control plane receives link
After failure message, the business masterslave switchover in the channel Vxlan is carried out.
Based on the above technical solution, it is 3~50ms that the period is specified described in S3, and specified period described in S4 is 30
~50ms.
The system of the rapid active-standby switching of Vxlan channel service provided by the invention, including it is set to source node and Su Jie
Service management module, BFD configuration module, BFD detection module and control management module on point；
Service management module is used for: establishing the channel Vxlan with opposite end；
BFD configuration module is used for: being established the BFD linkage channel Vxlan with opposite end, is sent BFD detection letter to BFD detection module
Number；
BFD detection module is used for: receive BFD detection signal after, BFD linkage the channel Vxlan on, according to the specified period to
Opposite end sends BFD detection messages, sends control management signal to control management module；
Control management module is used for: after receiving control management signal, in specified period, if not receiving opposite end transmission
BFD detection messages then carry out the business masterslave switchover in the channel Vxlan.
Based on the above technical solution, the workflow of the service management module includes: control network virtualization
After the control plane of platform carries out the business configuration in the channel Vxlan, the business configuration in the channel Vxlan is issued to Forwarding plane,
Forwarding plane establishes the channel Vxlan for sending Vxlan service message according to the business configuration in the channel Vxlan；The BFD
The workflow of configuration module includes: to control the business in the control plane progress BFD linkage channel Vxlan of network virtualization platform
With postponing, the business configuration in the BFD linkage channel Vxlan is issued to Forwarding plane, Forwarding plane is logical according to BFD linkage Vxlan
The business configuration in road establishes the BFD linkage channel Vxlan.
Based on the above technical solution, the business configuration in the channel Vxlan includes VNI, local terminal IP and opposite end IP,
The opposite end of source node is destination node, and the opposite end of destination node is source node；The business configuration in the BFD linkage channel Vxlan includes
BFD ID, VNI, local terminal IP and opposite end IP, VNI, local terminal IP and opposite end IP are identical as the business configuration in the channel Vxlan.
Based on the above technical solution, it is described control management module workflow include: in specified period, if
The BFD detection messages for not receiving opposite end transmission, then generate Link Failure message and be sent to control plane；Control plane receives
After Link Failure message, the business masterslave switchover in the channel Vxlan is carried out.
Based on the above technical solution, the specified period in the BFD detection module is 3~50ms, the control
Specified period in management module is 30~50ms.
Compared with the prior art, the advantages of the present invention are as follows:
Referring to the S1 to S4 of the method for the present invention it is found that the present invention can be by monitoring whether BFD detection messages receive, to determine
Whether carry out main-apparatus protection calmly to switch, since the sending time of BFD detection messages is shorter (3~50ms).Therefore, with the prior art
The time of the masterslave switchover in the middle channel Vxlan is compared in 300ms or more, and the present invention can monitor BFD detection report within 50ms
Whether text receives, so that at most only needing 50ms, masterslave switchover time from network failure to the time for carrying out masterslave switchover
It is very short, it can satisfy the protection demand of telecommunication network grade 50ms interruption.
Detailed description of the invention
Fig. 1 is the network structure of the Vxlan in the embodiment of the present invention；
Fig. 2 is the flow chart of the method for the rapid active-standby switching of Vxlan channel service in the embodiment of the present invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to figure 1 and figure 2, the method for the rapid active-standby switching of the Vxlan channel service in the embodiment of the present invention, packet
Include following steps:
S1: establishing the channel Vxlan for being used to send Vxlan service message of two-way equity between source node and destination node,
Go to S2.
The real work process of S1 is to establish the process in the channel Vxlan in the prior art.
S2: BFD (the Bidirectional Forwarding of two-way equity is established between source node and destination node
Detection, for detecting the network protocol of failure between two forwarding points) the linkage channel Vxlan, go to S3.
S3: source node and destination node are on the BFD linkage channel Vxlan, according to specified period (the specified period is 3~50ms)
BFD detection messages are sent to opposite end, go to S4.
The principle of S2 and S3 are as follows: on the basis of establishing the channel Vxlan, introduce BFD detection messages, examined subsequently through BFD
Text is observed and predicted to monitor whether that network failure occurs and carry out masterslave switchover.
S4: source node or destination node are in specified period (specified period is 30~50ms), if not receiving opposite end transmission
BFD detection messages (Vxlan BFD message), then carry out the business masterslave switchover in the channel Vxlan.
Referring to the S1 to S4 of the method for the present invention it is found that the present invention can be by monitoring whether BFD detection messages receive, to determine
Whether carry out main-apparatus protection calmly to switch, since the sending time of BFD detection messages is shorter (3~50ms).Therefore, with the prior art
The time of the masterslave switchover in the middle channel Vxlan is compared in 300ms or more, and the present invention can monitor BFD detection report within 50ms
Whether text receives, so that at most only needing 50ms, masterslave switchover time from network failure to the time for carrying out masterslave switchover
It is very short, it can satisfy the protection demand of telecommunication network grade 50ms interruption.
Illustrate method of the invention below by six specific embodiments.
Embodiment one:
The process of S1 includes: the network virtualization platform of source node and destination node, carries out the channel Vxlan by control plane
Business configuration after, the business configuration in the channel Vxlan is issued to Forwarding plane, Forwarding plane is according to the business in the channel Vxlan
The channel Vxlan is established in configuration.
Embodiment two:
On the basis of example 1, the business configuration in the channel Vxlan includes VNI, local terminal IP and opposite end IP, source section in S1
The opposite end of point is destination node, and the opposite end of destination node is source node.
Embodiment three:
The process of S2 includes: the network virtualization platform of source node and destination node, carries out BFD linkage by control plane
After the business configuration in the channel Vxlan, the business configuration in the BFD linkage channel Vxlan is issued to Forwarding plane, Forwarding plane according to
The business configuration in the BFD linkage channel Vxlan establishes the BFD linkage channel Vxlan.
Example IV:
On the basis of embodiment three, the business configuration in the BFD linkage channel Vxlan includes BFD ID, VNI, local terminal in S2
IP and opposite end IP, VNI, local terminal IP and opposite end IP are identical as the business configuration in the channel Vxlan.
Embodiment five:
The process of S4 includes: source node or destination node in specified period, if not receiving the BFD detection report of opposite end transmission
Text then generates Link Failure message and is sent to control plane；After control plane receives Link Failure message, according to matching in advance
The Preservation tactics set execute the business masterslave switchover in the corresponding channel Vxlan.
Embodiment six:
The process of the method for the rapid active-standby switching of Vxlan channel service in the present embodiment includes:
One, when the virtualization network platform of source node and destination node starts, by the Ethernet card of server as external connection
Port；The network virtualization platform of source node and destination node carries out the business configuration (business in the channel Vxlan by control plane
Configuration includes VNI, local terminal IP and opposite end IP) after, the business configuration in the channel Vxlan is issued to Forwarding plane, Forwarding plane root
According to the business configuration in the channel Vxlan, the channel Vxlan for sending Vxlan service message is established on external connection port.
Two, the network virtualization platform of source node and destination node carries out the BFD linkage channel Vxlan by control plane
After business configuration (business configuration includes BFD ID, VNI, local terminal IP and opposite end IP, VNI), by the industry in the BFD linkage channel Vxlan
Configuration distributing be engaged in Forwarding plane, Forwarding plane establishes BFD linkage Vxlan according to the business configuration in the BFD linkage channel Vxlan
Channel.
Three, source node and destination node send BFD detection messages to opposite end every 30ms on the BFD linkage channel Vxlan.
Four, source node or destination node are in 30ms, if not receiving the BFD detection messages of opposite end transmission, generate link event
Barrier message is simultaneously sent to control plane；After control plane receives Link Failure message, executed according to preconfigured Preservation tactics
The business masterslave switchover in the corresponding channel Vxlan.
The system of the rapid active-standby switching of Vxlan channel service in the embodiment of the present invention includes being set to source node and place
Service management module, BFD configuration module, BFD detection module and control management module on node.
Service management module is used for: establish the channel Vxlan with opposite end: the control plane for controlling network virtualization platform carries out
After the business configuration in the channel Vxlan, the business configuration in the channel Vxlan is issued to Forwarding plane, Forwarding plane is logical according to Vxlan
The business configuration in road establishes the channel Vxlan for sending Vxlan service message；The business configuration in the channel Vxlan include VNI,
Local terminal IP and opposite end IP, the opposite end of source node are destination node, and the opposite end of destination node is source node.
BFD configuration module is used for: establish the BFD linkage channel Vxlan with opposite end: the control for controlling network virtualization platform is flat
After face carries out the business configuration in the BFD linkage channel Vxlan, it is flat that the business configuration in the BFD linkage channel Vxlan is issued to forwarding
Face, Forwarding plane establish the BFD linkage channel Vxlan according to the business configuration in the BFD linkage channel Vxlan；BFD linkage Vxlan is logical
The business configuration in road includes BFD ID, VNI, local terminal IP and opposite end IP, VNI, local terminal IP and opposite end IP, with the channel Vxlan
Business configuration is identical.BFD links after the completion of Vxlan Path Setup, sends BFD to BFD detection module and detects signal；
BFD detection module is used for: after receiving BFD detection signal, on the BFD linkage channel Vxlan, according to the specified period
(the specified period is 3~50ms) sends BFD detection messages to opposite end, sends control management signal to control management module；
Control management module is used for: after receiving control management signal, in specified period (specified period is 30~50ms),
If not receiving the BFD detection messages of opposite end transmission, the business masterslave switchover in the channel Vxlan is carried out: in specified period, if not
The BFD detection messages for receiving opposite end transmission, then generate Link Failure message and be sent to control plane；Control plane receives chain
After the failure message of road, the business masterslave switchover in the channel Vxlan is carried out.
It should be understood that system provided in an embodiment of the present invention is when carrying out intermodule communication, only with above-mentioned each function
The division progress of module can according to need and for example, in practical application by above-mentioned function distribution by different function moulds
Block is completed, i.e., the internal structure of system is divided into different functional modules, to complete all or part of function described above
Energy.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art,
Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the present invention
Protection scope within.The content being not described in detail in this specification belongs to existing skill well known to professional and technical personnel in the field
Art.
Claims (10)
1. a kind of method of the rapid active-standby switching of Vxlan channel service, which is characterized in that method includes the following steps:
S1: the channel Vxlan is established between source node and destination node, goes to S2；
S2: the BFD linkage channel Vxlan between source node and destination node goes to S3；
S3: source node and destination node send BFD detection messages to opposite end according to the specified period on the BFD linkage channel Vxlan,
Go to S4；
S4: source node or destination node are in specified period, if not receiving the BFD detection messages of opposite end transmission, it is logical to carry out Vxlan
The business masterslave switchover in road.
2. the method for the rapid active-standby switching of Vxlan channel service as described in claim 1, it is characterised in that:
The process of S1 includes: the network virtualization platform of source node and destination node, and the industry in the channel Vxlan is carried out by control plane
Business is issued to Forwarding plane with postponing, by the business configuration in the channel Vxlan, Forwarding plane according to the business configuration in the channel Vxlan,
Establish the channel Vxlan for sending Vxlan service message；
The process of S2 includes: the network virtualization platform of source node and destination node, carries out BFD linkage Vxlan by control plane
After the business configuration in channel, the business configuration in the BFD linkage channel Vxlan is issued to Forwarding plane, Forwarding plane joins according to BFD
The business configuration in the dynamic channel Vxlan establishes the BFD linkage channel Vxlan.
3. the method for the rapid active-standby switching of Vxlan channel service as claimed in claim 2, it is characterised in that: the Vxlan
The business configuration in channel includes VNI, local terminal IP and opposite end IP, and the opposite end of source node is destination node, and the opposite end of destination node is source section
Point；The business configuration in the BFD linkage channel Vxlan includes BFD ID, VNI, local terminal IP and opposite end IP, VNI, local terminal IP and right
IP is held, it is identical as the business configuration in the channel Vxlan.
4. the method for the rapid active-standby switching of Vxlan channel service as described in claim 1, which is characterized in that the process of S4
Include: source node or destination node in specified period, if not receiving the BFD detection messages of opposite end transmission, generates link failure
Message is simultaneously sent to control plane；After control plane receives Link Failure message, the business masterslave switchover in the channel Vxlan is carried out.
5. the method for the rapid active-standby switching such as the described in any item Vxlan channel services of Claims 1-4, it is characterised in that:
It is 3~50ms that the period is specified described in S3, and specified period described in S4 is 30~50ms.
6. a kind of system of the rapid active-standby switching of Vxlan channel service, which is characterized in that the system includes being set to source node
With service management module, BFD configuration module, BFD detection module and the control management module on destination node；
Service management module is used for: establishing the channel Vxlan with opposite end；
BFD configuration module is used for: being established the BFD linkage channel Vxlan with opposite end, is sent BFD to BFD detection module and detect signal；
BFD detection module is used for: after receiving BFD detection signal, on the BFD linkage channel Vxlan, according to the specified period to opposite end
BFD detection messages are sent, send control management signal to control management module；
Control management module is used for: after receiving control management signal, in specified period, if not receiving the BFD inspection of opposite end transmission
Text is observed and predicted, then carries out the business masterslave switchover in the channel Vxlan.
7. the system of the rapid active-standby switching of Vxlan channel service as claimed in claim 6, it is characterised in that:
The workflow of the service management module includes: to control the control plane progress channel Vxlan of network virtualization platform
Business configuration after, the business configuration in the channel Vxlan is issued to Forwarding plane, Forwarding plane is according to the business in the channel Vxlan
Configuration, establishes the channel Vxlan for sending Vxlan service message；
The workflow of the BFD configuration module includes: to control the control plane progress BFD linkage of network virtualization platform
After the business configuration in the channel Vxlan, the business configuration in the BFD linkage channel Vxlan is issued to Forwarding plane, Forwarding plane according to
The business configuration in the BFD linkage channel Vxlan establishes the BFD linkage channel Vxlan.
8. the system of the rapid active-standby switching of Vxlan channel service as claimed in claim 7, it is characterised in that: the Vxlan
The business configuration in channel includes VNI, local terminal IP and opposite end IP, and the opposite end of source node is destination node, and the opposite end of destination node is source section
Point；The business configuration in the BFD linkage channel Vxlan includes BFD ID, VNI, local terminal IP and opposite end IP, VNI, local terminal IP and right
IP is held, it is identical as the business configuration in the channel Vxlan.
9. the system of the rapid active-standby switching of Vxlan channel service as claimed in claim 6, which is characterized in that the control
The workflow of management module includes:, if not receiving the BFD detection messages of opposite end transmission, to generate link in specified period
Failure message is simultaneously sent to control plane；After control plane receives Link Failure message, the business for carrying out the channel Vxlan is active and standby
It switches.
10. the system of the rapid active-standby switching such as the described in any item Vxlan channel services of claim 6 to 9, feature exist
In: specified period in the BFD detection module is 3~50ms, the specified period in the control management module is 30~
50ms。
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| CN201810726253.5A CN109039707A (en) | 2018-07-04 | 2018-07-04 | The method and system of the rapid active-standby switching of Vxlan channel service |
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| CN201810726253.5A CN109039707A (en) | 2018-07-04 | 2018-07-04 | The method and system of the rapid active-standby switching of Vxlan channel service |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109818857A (en) * | 2019-02-13 | 2019-05-28 | 烽火通信科技股份有限公司 | The method and system of pretection switch are carried out to the business run on CPU |
| CN111682982A (en) * | 2020-06-03 | 2020-09-18 | 北京东土军悦科技有限公司 | Path fault detection method, device, equipment, system and storage medium |
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| CN104270298A (en) * | 2014-09-30 | 2015-01-07 | 杭州华三通信技术有限公司 | Method and device for forwarding message in VXLAN |
| CN105591974A (en) * | 2014-10-20 | 2016-05-18 | 华为技术有限公司 | Message processing method, device and system |
| US20170257260A1 (en) * | 2016-03-07 | 2017-09-07 | Cisco Technology, Inc. | BFD OVER VxLAN ON vPC UPLINKS |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104270298A (en) * | 2014-09-30 | 2015-01-07 | 杭州华三通信技术有限公司 | Method and device for forwarding message in VXLAN |
| CN105591974A (en) * | 2014-10-20 | 2016-05-18 | 华为技术有限公司 | Message processing method, device and system |
| US20170257260A1 (en) * | 2016-03-07 | 2017-09-07 | Cisco Technology, Inc. | BFD OVER VxLAN ON vPC UPLINKS |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109818857A (en) * | 2019-02-13 | 2019-05-28 | 烽火通信科技股份有限公司 | The method and system of pretection switch are carried out to the business run on CPU |
| CN111682982A (en) * | 2020-06-03 | 2020-09-18 | 北京东土军悦科技有限公司 | Path fault detection method, device, equipment, system and storage medium |
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Application publication date: 20181218 |