CN108924028A - The switching method and device of a kind of unknown unicast message between tunnel - Google Patents
The switching method and device of a kind of unknown unicast message between tunnel Download PDFInfo
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- CN108924028A CN108924028A CN201810690636.1A CN201810690636A CN108924028A CN 108924028 A CN108924028 A CN 108924028A CN 201810690636 A CN201810690636 A CN 201810690636A CN 108924028 A CN108924028 A CN 108924028A
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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
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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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]
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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
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Abstract
This application provides switching method and device of a kind of unknown unicast message between tunnel, are related to the communications field, the method includes：Each tunnel in multiple tunnels is bound with multiple VSI respectively, and is each tunnel configuration tunnel state after binding；Wherein, the tunnel multiple tunnel Zhong Zhu is configured as effective forwarding state, and over run tunnel is configured as inhibiting forwarding state；Main tunnel by being configured as effective forwarding state forwards unknown unicast message；During forwarding unknown unicast message by main tunnel, if detecting main tunnel failure, the tunnel state of over run tunnel is then switched to effective forwarding state identical with the main tunnel before failure, to forward unknown unicast message by the over run tunnel after switching.Wherein, based on tunnel tunnel state switching only operate a hardware and operate the hardware the cost time it is few, improve the tunnel switch speed of unknown unicast message, realize fast transferring of the unknown unicast message between tunnel.
Description
Technical field
This application involves fields of communication technology, in particular to a kind of switching of unknown unicast message between tunnel
Method and device.
Background technique
Agreement (Internet Protocol, IP) core net by interconnecting between network is needed in data center network
Network carries out two layers of interconnection between website, when website is more, generallys use the agent way transmitting message that floods, is flooded with saving
Occupancy of the message to IP core network bandwidth resources.
Under the agent way that floods, when being usually laid with a master proxy server and multiple alternative proxies in data center
Server, all VTEP in the same VXLAN establish tunnel with each proxy server respectively.VTEP is being received from this
After the message that floods of ground website, message is flooded in site-local and the message that will flood is sent to primary proxy by main tunnel and takes
Business device, is forwarded to distal end VTEP for the message that floods received by master proxy server；And when main tunnel failure, VTEP will be general
Big vast message will be sent to alternative proxy server by over run tunnel, continue the message turn that floods by alternative proxy server
Hair.
But VTEP corresponds to multiple VSI, this multiple VSI with the same main tunnel binding, the broadcasting packet of all VSI
Master proxy server is all transmitted to by main tunnel, and when main tunnel failure, need first to release main tunnel and each VSI's
Then binding relationship is established respectively again by the binding of tunnel (the abbreviation over run tunnel) and each VSI of alternative proxy server
Relationship, this process needs take a substantial amount of time, and may cause prolonged cutout, and then message is caused largely to be lost.
Summary of the invention
In view of this, the embodiment of the present application is designed to provide a kind of switching side of unknown unicast message between tunnel
Method, can be identical with the main tunnel before failure by being switched to the over run tunnel that VSI is bound when detecting main tunnel failure
Effective forwarding state reduces the loss of message to realize fast transferring of the unknown unicast message between tunnel, alleviates
The problem of message loss in tunnel handoff procedure.
In a first aspect, the embodiment of the present application provides a kind of switching method of unknown unicast message between tunnel, application
Multiple virtual machine exchange example VSI are corresponded in expansible Virtual Local Area Network VXLAN endpoint of a tunnel VTEP, the VTEP, it is described
Establishing respectively between VTEP and multiple proxy servers has tunnel, the method includes：
Each tunnel in multiple tunnels is bound with multiple VSI respectively, and is each tunnel configuration tunnel after binding
State；Wherein, multiple tunnels include main tunnel corresponding with master proxy server and corresponding spare with alternative proxy server
Tunnel, the main tunnel are configured as effective forwarding state, and the over run tunnel is configured as inhibiting forwarding state；
Main tunnel by being configured as effective forwarding state forwards unknown unicast message；
During forwarding the unknown unicast message by the main tunnel, if detecting the main tunnel event
The tunnel state of over run tunnel is then switched to effective forwarding state identical with the main tunnel before failure, to pass through by barrier
Over run tunnel after switching forwards the unknown unicast message.
Second aspect, the embodiment of the present application also provides a kind of switching device of unknown unicast message between tunnel, packets
It includes：
Binding module, for binding each tunnel in multiple tunnels with multiple VSI respectively；
Configuration module, for for binding after each tunnel configuration tunnel state；Wherein, multiple tunnels include and master
Proxy server corresponds to main tunnel and over run tunnel corresponding with alternative proxy server, and the main tunnel is configured as effectively forwarding
State, the over run tunnel are configured as inhibiting forwarding state；
Forwarding module forwards unknown unicast message for the main tunnel by being configured as effective forwarding state；
Switching module is used for during forwarding the unknown unicast message by the main tunnel, if detecting
The tunnel state of over run tunnel is then switched to effective forwarding identical with the main tunnel before failure by the main tunnel failure
State, to forward the unknown unicast message by the over run tunnel after switching.
Switching method and device of a kind of unknown unicast message provided by the embodiments of the present application between tunnel, by multiple tunnels
Each tunnel in road is bound with multiple VSI respectively, and is each tunnel configuration tunnel state after binding, wherein multiple tunnels
The road tunnel Zhong Zhu is configured as effective forwarding state, and over run tunnel is configured as inhibiting forwarding state.In this way, by being configured
During main tunnel forwarding unknown unicast message for effective forwarding state, if detecting main tunnel failure, VTEP can be certainly
It is dynamic that the tunnel state of over run tunnel is switched to effective forwarding state identical with the main tunnel before failure, so as to standby after switching
Continued to forward unknown unicast message with tunnel.In the embodiment of the present application, the tunnel state switching only operation one based on tunnel
The secondary hardware and cost time for operating the hardware is few, compared with the prior art in repeatedly carry out the unbundlings in tunnel and VSI and tie up
Fixed process improves the tunnel switch speed of unknown unicast message, it is fast between tunnel to realize unknown unicast message
Speed migration, the problem of reducing the loss of message, alleviate the message loss in tunnel handoff procedure.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the schematic diagram of data center network architecture provided by the embodiment of the present application.
Fig. 2 shows a kind of streams of switching method of unknown unicast message between tunnel provided by the embodiment of the present application
Cheng Tu.
Fig. 3 shows switching method of the another kind unknown unicast message between tunnel provided by the embodiment of the present application
Flow chart.
Fig. 4 shows switching method of the another kind unknown unicast message between tunnel provided by the embodiment of the present application
Flow chart.
Fig. 5 shows switching method of the another kind unknown unicast message between tunnel provided by the embodiment of the present application
Flow chart.
Fig. 6 shows the structural schematic diagram of the binding relationship of VSI and tunnel provided by the embodiment of the present application.
Fig. 7 shows a kind of knot of switching device of the unknown unicast message provided by the embodiment of the present application between tunnel
Structure schematic diagram.
Fig. 8 shows the structural schematic diagram of computer equipment 40 provided by one embodiment of the application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall in the protection scope of this application.
Fig. 1 shows the schematic diagram of data center network architecture provided by the embodiments of the present application, as shown in Figure 1, in data
Central site network includes：First expansible Virtual Local Area Network (Virtual eXtensible LAN, VXLAN) endpoint of a tunnel
(VXLAN Tunnel End Point, VTEP1), VTEP2 and proxy server 1, proxy server 2, proxy server 3 and generation
Manage server 4；Wherein, VTEP1 and VTEP2 belongs to the same VXLAN, and VTEP1 is located locally, with the first virtual machine (Virtual
Machine, VM1) connection；VTEP2 is located at distal end, connect with VM2.
In the embodiment of the present application, VTEP1 establish with the VXLAN tunnel11 (abbreviation tunnel 11) of proxy server 1, build
The vertical VXLAN tunnel12 (abbreviation tunnel 12) with proxy server 2, establishes the VXLAN tunnel13 with proxy server 3
(abbreviation tunnel 13) establishes the VXLAN tunnel14 (abbreviation tunnel 14) with proxy server 4；VTEP2 is established to be taken with agency
Be engaged in the VXLAN tunnel21 (abbreviation tunnel 21) of device 1, (the abbreviation tunnel VXLAN tunnel22 of foundation and proxy server 2
22) the VXLAN tunnel23 (abbreviation tunnel 23) with proxy server 3, is established, the VXLAN with proxy server 4 is established
Tunnel24 (abbreviation tunnel 24).
In the embodiment of the present application, can be established manually by system manager VTEP1 and VTEP2 respectively with above-mentioned multiple generations
The tunnel VXLAN for managing server, in advance can also configure VTEP1 and VTEP2 by system manager, by with postponing
VTEP1 and VTEP2 establishes the respectively tunnel VXLAN with above-mentioned multiple proxy servers automatically.
In the embodiment of the present application, include in VTEP1 and VTEP2 multiple access circuits (Attachment Circuit,
AC) interface, VTEP1 and VTEP2 respectively will exchange example (Virtual with virtual machine with the AC interface of site-local connection respectively
Switch Instance, VSI) association.In the embodiment of the present application, VTEP1 and VTEP2 respectively correspond multiple VSI.
Fig. 2 shows a kind of processes of switching method of the unknown unicast message provided by the embodiments of the present application between tunnel
Figure, as shown in Fig. 2, a kind of switching method of the unknown unicast message provided for the application first embodiment between tunnel, is answered
For VTEP, the VTEP corresponds to multiple VSI, and establishing respectively between the VTEP and multiple proxy servers has tunnel, described
Method includes：
S101, each tunnel in multiple tunnels is bound with multiple VSI respectively, and is each tunnel configuration after binding
Tunnel state；Wherein, multiple tunnels include main tunnel corresponding with master proxy server and corresponding with alternative proxy server
Over run tunnel, the main tunnel are configured as effective forwarding state, and the over run tunnel is configured as inhibiting forwarding state.
There are multiple proxy servers in the embodiment of the present application, in data center network, it is every in the VTEP and data center
Establishing between a proxy server has tunnel, after the completion of tunnel is established, each tunnel is corresponding with VTEP multiple
VSI is bound, and is then effective forwarding state by the main tunnel configuration after binding, the over run tunnel after binding is configured as
Inhibit forwarding state.
Here, above-mentioned main tunnel can be with 1, can also be multiple.When main tunnel is 1, effective forwarding shape in main tunnel
State be for the main tunnel binding all VSI it is effective namely main tunnel is for forwarding all VSI from the main tunnel binding
Unknown unicast message.When main tunnel is multiple, effective forwarding state in each main tunnel is for the main tunnel binding
Part VSI is effective namely main tunnel is used to forward the unknown unicast message of the part VSI from the main tunnel binding；Its
In, the sum of quantity of this multiple main corresponding live part VSI in tunnel is equal to the number of all VSI of each main tunnel binding
Amount.In application embodiment, the message from the corresponding all VSI of VTEP is forwarded by multiple main tunnels, multiple masters can be made
The unknown unicast message from all VSI is shared in tunnel jointly, is solved a main tunnel and is E-Packeted the concurrent bottle of generation
Neck problem improves the transmission speed of unknown unicast message.
As shown in Figure 1, agency is taken so that the VTEP1 of local side forwards unknown unicast message to the VTEP2 of distal end as an example
Be engaged in the multiple VSI binding corresponding with VTEP1 respectively of the corresponding tunnel 11 of device 1, by the corresponding tunnel 12 of proxy server 2 respectively with
The corresponding multiple VSI bindings of VTEP1, by the corresponding tunnel 13 of proxy server 3, multiple VSI corresponding with VTEP1 is bound respectively,
By the multiple VSI bindings corresponding with VTEP1 respectively of the corresponding tunnel 14 of proxy server 4.Then, it is based on above-mentioned proxy server
The active and standby configuration information of 1~proxy server 4, the corresponding respective tunnel of tunnel configuration of respectively aforementioned four proxy server
State；It here, is effective forwarding state by the corresponding main tunnel configuration of master proxy server, alternative proxy server is corresponding
Over run tunnel is configured to inhibit forwarding state.In the tunnel state for completing the respective tunnel of aforementioned four proxy server with postponing,
The unknown unicast message from VSI is transmitted to the corresponding master proxy server in the main tunnel by main tunnel, so as to described
The unknown unicast message is forwarded to the VTEP2 of distal end by master proxy server.
S102, unknown unicast message is forwarded by the main tunnel for being configured as effective forwarding state.
In the embodiment of the present application, VTEP is being detected after from target AC interface to unknown unicast message, search with
The target VSI of the target AC interface conjunctionn；Then, by associated in addition to the target AC interface with the target VSI
Other AC interfaces and target VSI binding and the main tunnel for being configured as effective forwarding state, by the unknown unicast report
Text is forwarded to the master proxy server.
S103, during forwarding the unknown unicast message by the main tunnel, if detecting the main tunnel
The tunnel state of over run tunnel is then switched to effective forwarding state identical with the main tunnel before failure by road failure, with
The unknown unicast message is forwarded by the over run tunnel after switching.
In the embodiment of the present application, VTEP can obtain the running state information in main tunnel in real time, then according to the main tunnel
Running state information come determine the main tunnel whether failure.VTEP is when determining the main tunnel failure, if having detected multiple
Over run tunnel, then the selection target over run tunnel from multiple over run tunnels, and before the target over run tunnel is switched to failure
The identical effective forwarding state in the main tunnel, in this way, the over run tunnel after switching can continue to replace the main tunnel after failure
Forward the corresponding unknown unicast message for needing to forward；Meanwhile VTEP unbinds the main tunnel after failure, and will be after unbundlings
The tunnel state in the main tunnel is arranged to the reset condition of default.
As shown in Figure 1, with a master proxy server (such as proxy server 1), two alternative proxy servers are (such as spare
Proxy server 2 and alternative proxy server 3) for, here, the corresponding tunnel 11 of proxy server 1 is main tunnel, agency's clothes
Business device 2 and the corresponding tunnel 12 of proxy server 3 and tunnel 13 are respectively over run tunnel.Wherein, above-mentioned 11 quilt of main tunnel
It is configured to forward effective forwarding state of the unknown unicast message of all VSI from the main tunnel binding, over run tunnel 12
It is configured as inhibiting forwarding state with over run tunnel 13.VTEP is after detecting main 11 failure of tunnel, by the tunnel of over run tunnel 12
Road state is switched to the effective forwarding state for forwarding the unknown unicast message of all VSI bound from over run tunnel 12, or
The tunnel state of over run tunnel 13 is switched to the unknown unicast report for all VSI that forwarding is bound from over run tunnel 13 by person
Effective forwarding state of text.
With two master proxy servers (such as proxy server 1 and proxy server 2), an alternative proxy server is (such as
Alternative proxy server 3) for, here, proxy server 1 and the corresponding tunnel 11 of proxy server 2 and tunnel 12 are
For main tunnel, the corresponding tunnel 13 of proxy server 3 is over run tunnel.Wherein, above-mentioned main tunnel 11 is configured as forwarding coming from and be somebody's turn to do
Effective forwarding state of the unknown unicast message for a part of VSI that main tunnel 11 is bound, main tunnel 12, which is configured as forwarding, to be come
Effective forwarding state of the unknown unicast message of another part VSI bound from the main tunnel 12；Over run tunnel 13 is configured
To inhibit forwarding state.The tunnel state of over run tunnel 13 is switched to forwarding and come by VTEP after detecting main 11 failure of tunnel
Effective forwarding state of the unknown unicast message for a part of VSI that voluntary tunnel 11 is bound, wherein the one of the main binding of tunnel 11
Part VSI is also bound with over run tunnel 13；Alternatively, VTEP is after detecting main 12 failure of tunnel, by over run tunnel 13
Tunnel state is switched to effective forwarding shape that forwarding carrys out the unknown unicast message for another part VSI that voluntary tunnel 12 is bound
State, wherein another part VSI that main tunnel 12 is bound also is bound with over run tunnel 13.
It by binding each tunnel in multiple tunnels with multiple VSI respectively, and is after binding in the embodiment of the present application
Each tunnel configuration tunnel state, and make to be configured as the main tunnel forwarding unknown unicast message of effective forwarding state.This
Sample, during the main tunnel by being configured as effective forwarding state forwards unknown unicast message, if detecting main tunnel
The tunnel state of over run tunnel can be switched to effective forwarding shape identical with the main tunnel before failure automatically by road failure, VTEP
State, so that the over run tunnel after switching continues to forward unknown unicast message.Since the tunnel state switching based on tunnel is only grasped
Make a hardware and operate the hardware the cost time it is few, compared with the prior art in repeatedly carry out tunnel and the unbundlings of VSI
With the process of binding, the tunnel switch speed of unknown unicast message is improved, realizes unknown unicast message between tunnel
Fast transferring, the problem of reducing the loss of message, alleviate the message loss in tunnel handoff procedure.
In the embodiment of the present application, when main tunnel be 1, the unknown unicast of all VSI from the main tunnel binding
Message is forwarded in the main tunnel, and in practice, the unknown unicast message that VTEP is received is to remove to target VSI is associated
What other AC interfaces outside the target AC interface were broadcasted, each other AC interface is equal after receiving unknown unicast message
Unknown unicast message can be transmitted to main tunnel, this allows for the substantial amounts of the received unknown unicast message in main tunnel,
These messages can cause concurrency to impact in main tunnel, and then generate the concurrency bottleneck problem in main tunnel.Therefore, in order to solve
The above problem in the embodiment of the present application, is pre-configured with multiple main tunnels, make multiple main tunnels it is common share it is corresponding from VTEP
All VSI unknown unicast messages.Based on this, as shown in figure 3, the main tunnel be it is multiple, it is described for binding after each of
Tunnel configuration tunnel state, including：
S201, each main tunnel after binding is matched at least one VSI respectively；Wherein, different main tunnel
The matched VSI in road is different.
Here, the purpose for multiple main tunnels being arranged is to share the unknown unicast from the corresponding all VSI of VTEP
Therefore message in the embodiment of the present application, will be divided equally according to the quantity in main tunnel in the corresponding all VSI of VTEP, be made each
Main tunnel is matched with a part of VSI after dividing equally.In this way, each main tunnel can share forwarding after dividing equally
The unknown unicast message of a part of VSI.
S202, by each main tunnel configuration be for the main matched VSI in tunnel effective forwarding state so that each master
Tunnel forwards the unknown unicast message from itself matched VSI.
In the embodiment of the present application, by each main tunnel with divide equally after a part of VSI matched after, by each master
The tunnel state in tunnel is configured to effective forwarding state for the main matched VSI in tunnel, to make each main tunnel forwarding
Unknown unicast message from itself matched a part of VSI.
By the above method, all unknown unicast messages from VSI can shunt transmission in multiple main tunnels, delay
The concurrency bottleneck problem generated by a main tunnel transmission message has been solved, while having also reduced and the configuration in main tunnel is wanted
It asks, improves the forwarding speed of unknown unicast message.
Further, switching method of the unknown unicast message provided by the embodiments of the present application between tunnel, additionally provides
A part of VSI after each main tunnel is divided equally with the quantity according to main tunnel carries out matched method, as shown in figure 4, step
Rapid 201, each main tunnel after binding is matched at least one VSI respectively, including：
S301, multiple VSI are divided at least one VSI group, make the quantity of the VSI for including in each VSI group with
The quantity in the main tunnel is identical.
In the embodiment of the present application, as an alternative embodiment, each VSI oneself mark, according to VTEP pairs
The sequence of the identification information of all VSI answered from small to large (or from big to small) is successively chosen identical as the quantity in main tunnel
VSI, as a VSI group, so as to obtain VSI group collection.
In the embodiment of the present application, as shown in figures 1 to 6, by taking two main tunnels (such as tunnel 11 and tunnel 12) as an example for,
VTEP1 corresponds to four ASI, respectively ASI0, ASI1, ASI2 and ASI3, wherein tunnel 13 and tunnel 14 are over run tunnel.Cause
This, is that corresponding four ASI of VTEP1 are divided two VSI groups here, makes to include two VSI, such as ASI group in each VSI group
1 includes ASI0, ASI1, and ASI group 2 includes ASI2, ASI3.
S302, it is directed to any VSI group, the main tunnel progress after each VSI in the VSI group is bound with one respectively
Match, and VSI different in the VSI group is made to match different main tunnels.
As shown in figures 1 to 6, each tunnel is equal in main tunnel 11, main tunnel 12, over run tunnel 13 and over run tunnel 14
Bound with four VSI, for example, here it is possible to make tunnel 11 respectively with the ASI3 in ASI1 the and ASI group 2 in ASI group 1
Matching, matches tunnel 12 with the ASI2 in ASI0 the and ASI group 2 in ASI group 1.
In conjunction with step 301 to step 302, in the embodiment of the present application, the corresponding all VSI of VTEP are divided into first more
A VSI group, and keep the VSI for including in each VSI group identical as the quantity in main tunnel, then, by different main tunnels respectively with
Different VSI in each VSI group are matched, in this way, there is a VSI to match in multiple groups with one of them main tunnel,
It realizes a part of VSI after dividing equally in each main tunnel with the quantity according to main tunnel and carries out matched purpose.
In addition, in practice, the quantity of the corresponding VSI of VTEP is not necessarily the integral multiple of main tunnel quantity, when VTEP is corresponding
The quantity of VSI when not being the integral multiple of main tunnel quantity, after the VSI group for completing multiple VSI, can also there is residue
Ungrouped VSI, then, when there are ungrouped VSI, then ungrouped VSI and at least one described main tunnel are carried out
Matching；Wherein, when ungrouped VSI is one, this ungrouped VSI is matched with any main tunnel；When not dividing
When the VSI of group is multiple, this multiple ungrouped VSI is matched from different main tunnels respectively, in order to can
Make the number of the matched VSI in tunnel more evenly, so as to the subsequent transmission for carrying out unknown unicast message.
Further, switching method of the unknown unicast message provided by the embodiments of the present application between tunnel, additionally provides
The method that each tunnel in multiple tunnels is bound with multiple VSI respectively, as shown in figure 5, step 101, it will be in multiple tunnels
Each tunnel respectively with multiple VSI bind, including：
The next hop address of S401, each tunnel of creation, make the quantity of the next hop address in each tunnel and the main tunnel
The quantity in road is identical；Wherein, the next hop address is used to the unknown unicast message being forwarded to itself corresponding tunnel.
In the embodiment of the present application, the quantity of the corresponding next hop address in each tunnel is identical as the quantity in main tunnel.Such as Fig. 6
Shown, tunnel 11 and tunnel 12 are main tunnel, corresponding, each tunnel respectively there are two next hop address, respectively L3NHa and
L3NHb.In a specific embodiment, tunnel 11, tunnel 12, tunnel 13 and 14 corresponding two, tunnel next hop address are respectively
L3NH1a and L3NH1b, L3NH2a and L3NH2b, L3NH3a and L3NH3b, L3NH4a and L3NH4b.
S402, for any VSI group, the next hop address that each tunnel passes through itself respectively is bound in the VSI group
VSI, and next hop address different in each tunnel binds VSI different in the VSI group respectively.
In the embodiment of the present application, as shown in fig. 6, the index of VSI is the addition of odd number when each tunnel binding VSI
L3NHa indexes the addition L3NHb for even number.Therefore, tunnel 11 is bound by L3NH1a in VSI1, VSI group 2 in VSI group 1
VSI3, pass through L3NH1b bind VSI group 1 in VSI0, VSI group 2 in VSI2.Tunnel 12 VSI group 1 is bound by L3NH2a
In VSI1, VSI group 2 in VSI3, pass through L3NH2b bind VSI group 1 in VSI0, VSI group 2 in VSI2.Tunnel 13 is logical
The VSI3 in VSI1, VSI group 2 in L3NH3a binding VSI group 1 is crossed, VSI0, VSI group 2 in VSI group 1 is bound by L3NH3b
In VSI2.The VSI3 in VSI1 the and VSI group 2 in VSI group 1 is bound in tunnel 14 by L3NH4a, binds VSI by L3NH4b
The VSI2 in VSI0 and VSI group 2 in group 1.
It is corresponding, in step 202, it is described by each main tunnel configuration be for the main matched VSI in tunnel effectively turn
Hair-like state, including：
It configures next hop address bound in each main matched VSI in tunnel to for non-known single from the VSI
Casting text is effectively forwarded.
As shown in fig. 6, for tunnel 11, due to ASI3 with ASI1 the and ASI group 2 in ASI group 1 respectively of tunnel 11
Match, tunnel 12 is matched with the ASI2 in ASI0 the and ASI group 2 in ASI group 1 respectively.Therefore, ASI1 and ASI3 is bound in tunnel 11
Next hop address L3NH1a it is effective, and next hop address L3NH1b is invalid；The next-hop of ASI0 and ASI2 is bound in tunnel 12
Address L3NH2b is effective, and next hop address L3NH2a is invalid.In this way, the forwarding of 11, tunnel is non-known from ASI1 and ASI3
Unicast message, 12, tunnel unknown unicast message of the forwarding from ASI0 and ASI2, thus reached make it is all from VSI's
Unknown unicast message shunts the purpose of transmission in multiple main tunnels.
Below with reference to Fig. 1 and Fig. 6, between switching method of the unknown unicast message provided by the embodiments of the present application tunnel
It is illustrated, here, with tunnel 11 (i.e. Tunnel 11) and tunnel 12 (i.e. Tunnel 12) for main tunnel, tunnel 13 is (i.e.
Tunnel 13) and tunnel 14 (i.e. Tunnel 14) be over run tunnel for be illustrated：
It 1, is each tunnel creation two broadcast next-hop L3NHa and L3NHb, in the corresponding institute of each tunnel binding VTEP
When having VSI, the index of VSI is the addition L3NHa of odd number, indexes the addition L3NHb for even number.
The next-hop L3NH1a and L3NH1b that Tunnel 11 is broadcasted, Tunnel 11 are used when binding 0 VSI
L3NH1b, Tunnel11 use L3NH1a, Tunnel 11 to use L3NH1b when binding VSI2 when binding VSI1,
Tunnel11 uses L3NH1a when binding VSI3.
Tunnel12 broadcasts next-hop L3NH2a and L3NH2b, and Tunnel12 uses L3NH2b when binding VSI0,
Tunnel12 uses L3NH2a, Tunnel12 to use L3NH2b, Tunnel2 binding when binding VSI2 when binding VSI1
L3NH2a is used when VSI3.
Tunnel13 broadcasts next-hop L3NH3a and L3NH3b, and Tunnel3 uses L3NH3b when binding VSI0,
Tunnel3 uses L3NH3a, Tunnel3 to use L3NH3b, Tunnel3 binding when binding 2 VSI when binding VSI1
L3NH3a is used when VSI3.
Tunnel14 broadcasts next-hop L3NH4a and L3NH4b, and Tunnel14 uses L3NH4b when binding VSI0,
Tunnel4 uses L3NH4a, Tunnel14 to use L3NH4b, Tunnel14 binding when binding VSI2 when binding VSI1
L3NH4a is used when VSI3.
2, four states are arranged in the broadcast in tunnel：FORWARD：Setting is forwarded from L3NHa, is also forwarded from L3NHb；
MASTER：Setting is forwarded from L3NHa, is not forwarded from L3NHb；SLAVE：Setting is not forwarded from L3NHa, is forwarded from L3NHb；
BLOCK：Setting is not forwarded from L3NHa, is not forwarded from L3NHb；It wherein, is FORWARD state when tunnel creation.Create
The tunnel state of Tunnel11 be FORWARD, the tunnel state of Tunnel12 is FORWARD, the tunnel state of Tunnel13
For FORWARD, the tunnel state of Tunnel14 is FORWARD.The state in tunnel only can be either last in first time binding VSI
It is recalculated when primary solution binding VSI.As global only one tunnel binding VSI, which is arranged to FORWARD；Entirely
There are two tunnel binding VSI for office, and tunnel is arranged respectively to MASTER and SLAVE state；More than two tunnel binding VSI of the overall situation,
The first two tunnel is arranged respectively to MASTER and SLAVE state, other tunnels are arranged to BLOCK state.
3, in the embodiment of the present application, Tunnel11 is bound into VSI0 first, at this point, keeping the original tunnel-like of Tunnel11
State FORWARD state is constant.When Tunnel12 is bound 0 VSI, since the overall situation has had a tunnel Tunnel11
It is bundled with VSI0, therefore, the FORWARD state of the Tunnel11 bound is first changed to MASTER state, then by Tunnel12
FORWARD state be changed to SLAVE state, Tunnel2 is finally bound into VSI0.When Tunnel13 is bound VSI0, due to
Tunnel11 and Tunnel12 has bound VSI0 in the overall situation, therefore, Tunnel13 is first arranged to BLOCK state, then will
Tunnel13 binds VSI0.When Tunnel14 is bound VSI0, due to Tunnel11, Tunnel12 and Tunnel13 in the overall situation
VSI0 has been bound, therefore, Tunnel14 has first been arranged to BLOCK state, then Tunnel14 is bound into VSI0.
It 4, will when VTEP1 detects tunnel Tunnel11DOWN (i.e. the Tunnel11 failure) of MASTER state
The state of Tunnel13 switches MASTER state, and Tunnel1 solution is bound all VSI, by Tunnel1 after unbundlings are completed
It is arranged to default FORWARD state, other tunnel states remain unchanged.When VTEP1 detects the tunnel of SLAVE state
When Tunnel12DOWN, the state of Tunnel13 is changed to SLAVE state, and Tunnel12 solution is bound into all VSI, unbinded
Tunnel12 is arranged to default FORWARD state after completion, other tunnel states remain unchanged.When VTEP1 is detected
When the tunnel Tunnel13DOWN of BLOCK state, Tunnel13 solution is bound into all VSI, it will after unbundlings are completed
Tunnel13 is arranged to default FORWARD state, other tunnel states remain unchanged.
If only Tunnel11 is main tunnel, remaining tunnel is over run tunnel, when VTEP1 detects FORWARD shape
When the tunnel Tunnel11DOWN of state, the state of any over run tunnel (such as Tunnel12) is changed to FORWARD state, and will
Tunnel11 solution binds all VSI, and after unbundlings are completed, Tunnel11 is arranged to default FORWARD state, other tunnels
State remains unchanged.
A kind of switching method of the unknown unicast message provided by the embodiments of the present application between tunnel, will be in multiple tunnels
Each tunnel is bound with multiple VSI respectively, and is each tunnel configuration tunnel state after binding, wherein main in multiple tunnels
Tunnel is configured as effective forwarding state, and over run tunnel is configured as inhibiting forwarding state.In this way, by being configured as effectively
During the main tunnel forwarding unknown unicast message of forwarding state, if detecting main tunnel failure, VTEP can automatically will be standby
It is switched to effective forwarding state identical with the main tunnel before failure with the tunnel state in tunnel, so as to the over run tunnel after switching
Continue to forward unknown unicast message.In the embodiment of the present application, the tunnel state switching based on tunnel only operates a hardware
And the cost time for operating the hardware is few, compared with the prior art in repeatedly carry out the unbundlings in tunnel and VSI and the mistake of binding
Journey improves the tunnel switch speed of unknown unicast message, realizes fast transferring of the unknown unicast message between tunnel,
The loss for reducing message, the problem of alleviating the message loss in tunnel handoff procedure.
As shown in fig. 7, providing a kind of switching dress of unknown unicast message between tunnel for the application second embodiment
It sets, provides a kind of switching method of unknown unicast message between tunnel, the dress for executing the application first embodiment
Set including：
Binding module 11, for binding each tunnel in multiple tunnels with multiple VSI respectively；
Configuration module 12, for for binding after each tunnel configuration tunnel state；Wherein, multiple tunnels include with
Master proxy server corresponds to main tunnel and over run tunnel corresponding with alternative proxy server, and the main tunnel is configured as effectively turning
Hair-like state, the over run tunnel are configured as inhibiting forwarding state；
Forwarding module 13 forwards unknown unicast message for the main tunnel by being configured as effective forwarding state；
Switching module 14 is used for during forwarding the unknown unicast message by the main tunnel, if detection
To the main tunnel failure, then the tunnel state of over run tunnel is switched to effective turn identical with the main tunnel before failure
Hair-like state, to forward the unknown unicast message by the over run tunnel after switching.
Further, switching device of the unknown unicast message provided by the embodiments of the present application between tunnel, the main tunnel
Road be it is multiple, configuration module 12 is specifically used for：
Each main tunnel after binding is matched at least one VSI respectively；Wherein, different main tunnels matching
VSI it is different；
By effective forwarding state that each main tunnel configuration is for the main matched VSI in tunnel, so that each main tunnel
Forward the unknown unicast message from itself matched VSI.
Further, switching device of the unknown unicast message provided by the embodiments of the present application between tunnel, configuration module
12, it is specifically used for：
Multiple VSI are divided at least one VSI group, make the quantity for the VSI for including in each VSI group and the master
The quantity in tunnel is identical；
For any VSI group, each VSI in the VSI group is matched with the main tunnel after a binding respectively, and
VSI different in the VSI group is set to match different main tunnels.
Further, switching device of the unknown unicast message provided by the embodiments of the present application between tunnel, configuration module
12, it is specifically used for：
Ungrouped VSI if it exists then matches ungrouped VSI with main tunnel described at least one；Wherein, when
When ungrouped VSI is multiple, different ungrouped VSI matches different main tunnels.
Further, switching device of the unknown unicast message provided by the embodiments of the present application between tunnel, binding module
11, it is specifically used for：
The next hop address for creating each tunnel makes the quantity of the next hop address in each tunnel and the number in the main tunnel
It measures identical；Wherein, the next hop address is used to the unknown unicast message being forwarded to itself corresponding tunnel；
For any VSI group, the next hop address that each tunnel passes through itself respectively binds the VSI in the VSI group,
And different next hop address binds VSI different in the VSI group respectively in each tunnel；
Configuration module 12, specifically for next hop address bound in each main matched VSI in tunnel to be configured to be directed to
Unknown unicast message from the VSI is effectively forwarded.
Further, switching device of the unknown unicast message provided by the embodiments of the present application between tunnel, forwarding module
13, it is specifically used for：
After from target AC interface to unknown unicast message, the target with the target AC interface conjunctionn is searched
VSI；
By being tied up with associated other AC interfaces in addition to the target AC interface of the target VSI and the target VSI
Main tunnel that is fixed and being configured as effective forwarding state, is forwarded to the master proxy server for the unknown unicast message.
Switching device of a kind of unknown unicast message provided by the embodiments of the present application between tunnel, by by multiple tunnels
In each tunnel respectively with multiple VSI bind, and for binding after each tunnel configuration tunnel state, wherein multiple tunnels
Middle main tunnel is configured as effective forwarding state, and over run tunnel is configured as inhibiting forwarding state.In this way, by being configured as
During the main tunnel forwarding unknown unicast message of effective forwarding state, if detecting main tunnel failure, VTEP can be automatic
The tunnel state of over run tunnel is switched to effective forwarding state identical with the main tunnel before failure, so as to spare after switching
Continue to forward unknown unicast message in tunnel.In the embodiment of the present application, the tunnel state switching based on tunnel only operates primary
The hardware and cost time for operating the hardware is few, compared with the prior art in repeatedly carry out tunnel and the unbundlings and binding of VSI
Process, improve the tunnel switch speed of unknown unicast message, it is quick between tunnel to realize unknown unicast message
Migration, the problem of reducing the loss of message, alleviate the message loss in tunnel handoff procedure.
Fig. 8 is the structural schematic diagram for the computer equipment 40 that one embodiment of the application provides, as shown in figure 5, for executing
Switching method of the unknown unicast message between tunnel in Fig. 2, the equipment include memory 401, processor 402 and are stored in
On the memory 401 and the computer program that can be run on the processor 402, wherein above-mentioned processor 402 executes above-mentioned meter
The step of switching method of the above-mentioned unknown unicast message between tunnel is realized when calculation machine program.
Specifically, above-mentioned memory 401 and processor 402 can be general memory and processor, do not do have here
Body limits, and when the computer program of 402 run memory 401 of processor storage, is able to carry out above-mentioned unknown unicast message
Switching method between tunnel.
Corresponding to switching method of the unknown unicast message between tunnel in Fig. 2, the embodiment of the present application also provides one
Computer readable storage medium is planted, is stored with computer program on the computer readable storage medium, which is located
The step of executing switching method of the above-mentioned unknown unicast message between tunnel when reason device operation.
Specifically, which can be general storage medium, such as mobile disk, hard disk, on the storage medium
Computer program when being run, be able to carry out switching method of the above-mentioned unknown unicast message between tunnel.
Switching device of the unknown unicast message between tunnel provided by the embodiment of the present application can be the spy in equipment
Determine hardware or the software being installed in equipment or firmware etc..Device provided by the embodiment of the present application, realization principle and production
Raw technical effect is identical with preceding method embodiment, and to briefly describe, Installation practice part does not refer to place, before can refer to
State corresponding contents in embodiment of the method.It is apparent to those skilled in the art that for convenience and simplicity of description,
System, the specific work process of device and unit of foregoing description, the corresponding process during reference can be made to the above method embodiment,
Details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method, it can be by others side
Formula is realized.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, only one kind are patrolled
Function division is collected, there may be another division manner in actual implementation, in another example, multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some communication interfaces, device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in embodiment provided by the present application can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing, in addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Finally it should be noted that：Embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that：Anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution.The protection in the application should all be covered
Within the scope of.Therefore, the protection scope of the application should be based on the protection scope of the described claims.
Claims (12)
1. a kind of switching method of unknown unicast message between tunnel, which is characterized in that be applied to expansible virtual LAN
Network VXLAN endpoint of a tunnel VTEP, the VTEP correspond to multiple virtual machine exchange example VSI, the VTEP and multiple agency services
Establishing respectively between device has tunnel, the method includes：
Each tunnel in multiple tunnels is bound with multiple VSI respectively, and is each tunnel configuration tunnel state after binding；
Wherein, multiple tunnels include main tunnel corresponding with master proxy server and with the corresponding over run tunnel of alternative proxy server,
The main tunnel is configured as effective forwarding state, and the over run tunnel is configured as inhibiting forwarding state；
Main tunnel by being configured as effective forwarding state forwards unknown unicast message；
During forwarding the unknown unicast message by the main tunnel, if detecting the main tunnel failure,
The tunnel state of over run tunnel is switched to effective forwarding state identical with the main tunnel before failure, after through switching
Over run tunnel forward the unknown unicast message.
2. switching method of the unknown unicast message according to claim 1 between tunnel, which is characterized in that the main tunnel
Road is multiple；Each tunnel configuration tunnel state for after binding, including：
Each main tunnel after binding is matched at least one VSI respectively；Wherein, different main tunnels is matched
VSI is different；
By effective forwarding state that each main tunnel configuration is for the main matched VSI in tunnel, so that each main tunnel forwarding
The unknown unicast message from itself matched VSI.
3. switching method of the unknown unicast message according to claim 2 between tunnel, which is characterized in that described to tie up
Each main tunnel after fixed is matched at least one VSI respectively, including：
Multiple VSI are divided at least one VSI group, make the quantity for the VSI for including in each VSI group and the main tunnel
Quantity it is identical；
For any VSI group, each VSI in the VSI group is matched with the main tunnel after a binding respectively, and make institute
It states VSI different in VSI group and matches different main tunnels.
4. switching method of the unknown unicast message according to claim 3 between tunnel, which is characterized in that it is described will be more
A VSI is divided into after at least one VSI group, further includes：
Ungrouped VSI if it exists then matches ungrouped VSI with main tunnel described at least one；Wherein, when not dividing
When the VSI of group is multiple, different ungrouped VSI matches different main tunnels.
5. switching method of the unknown unicast message according to claim 2 between tunnel, which is characterized in that it is described will be more
Each tunnel in a tunnel is bound with multiple VSI respectively, including：
The next hop address for creating each tunnel makes the quantity phase of the quantity of the next hop address in each tunnel with the main tunnel
Together；Wherein, the next hop address is used to the unknown unicast message being forwarded to itself corresponding tunnel；
For any VSI group, the next hop address that each tunnel passes through itself respectively binds the VSI in the VSI group, and every
Different next hop address binds VSI different in the VSI group respectively in a tunnel；
It is described by each main tunnel configuration be for the main matched VSI in tunnel effective forwarding state, including：
It configures next hop address bound in each main matched VSI in tunnel to for the unknown unicast report from the VSI
Text is effectively forwarded.
6. switching method of the unknown unicast message according to claim 1 between tunnel, which is characterized in that the VTEP
Access circuit AC interface including connecting local server, the AC interface is associated with virtual switch instance VSI, it is described pass through by
It is configured to the main tunnel forwarding unknown unicast message of effective forwarding state, including：
After from target AC interface to unknown unicast message, the target VSI with the target AC interface conjunctionn is searched；
By with associated other AC interfaces in addition to the target AC interface of the target VSI and the target VSI binding and
It is configured as the main tunnel of effective forwarding state, the unknown unicast message is forwarded to the master proxy server.
7. a kind of switching device of unknown unicast message between tunnel, which is characterized in that including：
Binding module, for binding each tunnel in multiple tunnels with multiple VSI respectively；
Configuration module, for for binding after each tunnel configuration tunnel state；Wherein, multiple tunnels include and primary proxy
Server corresponds to main tunnel and over run tunnel corresponding with alternative proxy server, and the main tunnel is configured as effectively forwarding shape
State, the over run tunnel are configured as inhibiting forwarding state；
Forwarding module forwards unknown unicast message for the main tunnel by being configured as effective forwarding state；
Switching module is used for during forwarding the unknown unicast message by the main tunnel, if detecting described
The tunnel state of over run tunnel is then switched to effective forwarding shape identical with the main tunnel before failure by main tunnel failure
State, to forward the unknown unicast message by the over run tunnel after switching.
8. switching device of the unknown unicast message according to claim 7 between tunnel, which is characterized in that the main tunnel
Road is multiple；The configuration module, is specifically used for：
Each main tunnel after binding is matched at least one VSI respectively；Wherein, different main tunnels is matched
VSI is different；
By effective forwarding state that each main tunnel configuration is for the main matched VSI in tunnel, so that each main tunnel forwarding
The unknown unicast message from itself matched VSI.
9. switching device of the unknown unicast message according to claim 8 between tunnel, which is characterized in that the configuration
Module is specifically used for：
Multiple VSI are divided at least one VSI group, make the quantity for the VSI for including in each VSI group and the main tunnel
Quantity it is identical；
For any VSI group, each VSI in the VSI group is matched with the main tunnel after a binding respectively, and make institute
It states VSI different in VSI group and matches different main tunnels.
10. switching device of the unknown unicast message according to claim 9 between tunnel, which is characterized in that described to match
Module is set, is specifically used for：
Ungrouped VSI if it exists then matches ungrouped VSI with main tunnel described at least one；Wherein, when not dividing
When the VSI of group is multiple, different ungrouped VSI matches different main tunnels.
11. switching device of the unknown unicast message according to claim 8 between tunnel, which is characterized in that described to tie up
Cover half block, is specifically used for：
The next hop address for creating each tunnel makes the quantity phase of the quantity of the next hop address in each tunnel with the main tunnel
Together；Wherein, the next hop address is used to the unknown unicast message being forwarded to itself corresponding tunnel；
For any VSI group, the next hop address that each tunnel passes through itself respectively binds the VSI in the VSI group, and every
Different next hop address binds VSI different in the VSI group respectively in a tunnel；
The configuration module, specifically for configuring next hop address bound in each main matched VSI in tunnel to for next
It is effectively forwarded from the unknown unicast message of the VSI.
12. switching device of the unknown unicast message according to claim 7 between tunnel, which is characterized in that described turn
Module is sent out, is specifically used for：
After from target AC interface to unknown unicast message, the target VSI with the target AC interface conjunctionn is searched；
By with associated other AC interfaces in addition to the target AC interface of the target VSI and the target VSI binding and
It is configured as the main tunnel of effective forwarding state, the unknown unicast message is forwarded to the master proxy server.
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| CN112350918A (en) * | 2020-12-10 | 2021-02-09 | 武汉绿色网络信息服务有限责任公司 | Service traffic scheduling method, device, equipment and storage medium |
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