CN104468394B - Message forwarding method and device in a kind of VXLAN networks - Google Patents
Message forwarding method and device in a kind of VXLAN networks Download PDFInfo
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Abstract
The invention discloses message forwarding method and device in a kind of VXLAN networks, the VXLAN networks, which include the first tunnel terminal VTEP at VXLAN tunnels both ends and the 2nd VTEP, wherein this method, to be included：Multiple VTEP IP address are configured on the first VTEP；First VTEP establishes one article of VXLAN tunnel using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address respectively, each VXLAN tunnels correspond to different business service grades, and the source and destination VTEP IP address at tunnel both ends and differ, forwarded for the user's message under the first VTEP on the VXLAN tunnels of corresponding business service grade.This method can preferentially ensure the bandwidth requirement of special service.
Description
Technical field
The present invention relates to network communication technology field, message forwarding method and device in more particularly to a kind of VXLAN networks.
Background technology
In the multi-tenant environment of cloud computing, each tenant is required for distribution one to be carried out very with other logical network
The logical network isolated well.The isolation of logical network typically passes through VLAN (VLAN, Virtual Local Area
Network) technology solves.In IEEE802.1Q standards, due to VLAN mark maximum 12bit, so in certain limit
VLAN maximum number only has 4K.As the multi-tenant demand under cloud environment is more and more, 4K VLAN can not meet number
The demand disposed according to center large scale network.In addition, in cloud computing environment, workload is frequently necessary in multiple data centers
Migrated with multiple cloud platforms, and the region division for being currently based on IP subnets limits the application of two layer connectivitys.
VXLAN is a kind of MAC-in-UDP technologies, and it passes through 2.5 layers of setting, one new network segmentation mould in network
Formula, adds 24bit segment identifier, has greatly expanded the number for the logical network that can be supported in cloud computing environment
Amount；And workload is departed from physical network, realizes that logical network crosses over IP network.
VXLAN technologies make multiple virtual machines (VM, Virtual Machine) in same VXLAN can be across three-layer network
Network is communicated, and in VXLAN technologies, the corresponding virtual overlay network of each tenant, each virtual overlay network is considered as one
The individual VXLAN network segments, and pass through virtual expansible local net network identifier (the VXLAN Network of one 24
Identifier, VNI) mark.Only possessing just allows to be communicated between identical VNI VM.
VXLAN networking schematic diagrams are as shown in Figure 1 at present.(encapsulation decapsulation VXLAN is set tunnel terminal (VTEP) equipment
It is standby), can be physical server virtual switch (vSwitch) or physical switches.Such as Fig. 1, in a physics
More virtual machine VM are run on server, while has vSwitch to be used for the encapsulation of VXLAN messages as VTEP on the server and unseals
Dress.All operation has following three VM on two physical servers, then public network is accessed by VXLAN between each VM, due to
Same purpose VTEP (i.e. same purpose vSwitch), therefore only establish one article of VXLAN between the first VTEP and the 2nd VTEP
Tunnel (Tunnel), the communication between three VM all uses this tunnel, if congestion occurs in tunnel, cannot be distinguished by business progress
Bandwidth guaranteed.
So the VXLAN flows forwarding all neither one Bandwidth guaranteed mechanism mentioned in prior art, on server
If multiple VXLAN flows arrive same opposite end, then same VXLAN tunnels will be used, when there is network congestion
When, different VXLAN flow can not obtain Bandwidth guaranteed according to service priority.
The content of the invention
Object of the present invention is to provide message forwarding method and device in a kind of VXLAN networks, it is allowed to high business clothes
The flow special VXLAN tunnels forwarding therethrough for grade of being engaged in, makes different VXLAN flow obtain band according to service priority
Width ensures.
The embodiments of the invention provide message forwarding method in a kind of VXLAN networks, the VXLAN networks include VXLAN
The first tunnel terminal VTEP and the 2nd VTEP, this method at tunnel both ends include：Multiple VTEP are configured on the first VTEP
IP address；First VTEP establishes one article using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address respectively
VXLAN tunnels, each VXLAN tunnel correspond to different business service grades, and the source and destination VTEP IP at tunnel both ends
Location simultaneously differs, and is forwarded for the user's message under the first VTEP on the VXLAN tunnels of corresponding business service grade.
The embodiment of the present invention additionally provides message forwarding method in a kind of VXLAN networks, applied to it is described first virtual
Interchanger direct-connected channel end VTEP；This method includes：The first VTEP static routing is pointed in configuration on the interchanger；
The static routing is introduced into the Routing Protocol of public network operation, the Routing Protocol run by public network is advertised to the 2nd VTEP, is used for
First VTEP gives the 2nd VTEP before flow table is received, by itself advertising of route.
The embodiment of the present invention additionally provides apparatus for forwarding message in a kind of VXLAN networks, and the device is applied to tunnel
Terminal VTEP, including：VTEP IP dispensing units, multiple VTEP IP address are configured on VTEP；Tunnel building unit, makes respectively
A VXLAN tunnel, each VXLAN tunnel are established with each VTEP IP address and opposite end VTEP each VTEP IP address
Corresponding different business service grade, and the source and destination VTEP IP address at tunnel both ends and differ, under the VTEP
User's message forwarded on the VXLAN tunnels of corresponding business service grade.
The embodiment of the present invention additionally provides apparatus for forwarding message in a kind of VXLAN networks, applied to the tunnel
Interchanger direct-connected terminal VTEP；The device includes：Static routing dispensing unit, on the interchanger described in configuration sensing
VTEP static routing；Advertising of route unit, the static routing is introduced into the Routing Protocol of public network operation, by public network operation
Routing Protocol is advertised to opposite end VTEP, for the VTEP before flow table is received, gives itself advertising of route to opposite end VTEP.
The beneficial effects of the present invention are the present invention establishes a plurality of VXLAN tunnels, it is allowed to the flow of high business service grade
Special VXLAN tunnels forwarding therethrough, makes different VXLAN flow obtain Bandwidth guaranteed according to service priority.Avoid
When there is network congestion, different VXLAN flow can not obtain Bandwidth guaranteed according to service priority.
Brief description of the drawings
Fig. 1 is VXLAN networking schematic diagrams；
Fig. 2 is the schematic flow sheet of message forwarding method in a kind of VXLAN networks provided by the invention；
Fig. 3 is the application networking scene schematic diagram of the embodiment of the present invention one；
Fig. 4 is the application networking scene schematic diagram of the embodiment of the present invention two；
Fig. 5 is apparatus for forwarding message in a kind of VXLAN networks that the embodiment of the present invention proposes, the structure applied to VTEP is shown
It is intended to；
Fig. 6 is apparatus for forwarding message in a kind of VXLAN networks that the embodiment of the present invention proposes, applied to direct-connected with VTEP
The structural representation of interchanger.
Embodiment
Referring to the drawings, the embodiment of the present invention is described in further detail.
As shown in Fig. 2 the invention provides message forwarding method in a kind of VXLAN networks, the VXLAN networks include
First VTEP and the 2nd VTEP, this method at VXLAN tunnels both ends include：
Step 21, multiple VTEP IP address are configured on the first VTEP；
Step 22, the first VTEP are respectively using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address
A VXLAN tunnel is established, each VXLAN tunnel corresponds to different business service grades, and the source and destination at tunnel both ends
VTEP IP address simultaneously differs, and turns for the user's message under the first VTEP on the VXLAN tunnels of corresponding business service grade
Hair.
To sum up, by message forwarding method in VXLAN networks provided by the invention, a plurality of VXLAN tunnels are established, it is allowed to high
The flow special VXLAN tunnels forwarding therethrough of business service grade, makes different VXLAN flow according to service priority
Obtain Bandwidth guaranteed.
Further explain how that the tunnel for establishing the different business grade of service is used below by the embodiment of the present invention one and two
In the business for ensureing different brackets service request.
Embodiment one
As shown in figure 3, it is the application networking scene schematic diagram of the embodiment of the present invention one.User under first VTEP in Fig. 3
For VM1, VM2 and VM3, user is VM4, VM5 and VM6 under the 2nd VTEP.First VTEP and the 2nd VTEP are controlled by control device,
Interchanger 1 and interchanger 2 can be controlled by control device, can not also be controlled by control device.Interchanger 1 and interchanger 2 are distinguished
It is direct-connected with the first VTEP and the 2nd VTEP, it is multiple that other are also included on the VXLAN tunnels between the first VTEP and the 2nd VTEP
Intermediate equipment, do not show in figure.
First, according to the quantity of business service grade, it is determined that the VXLAN established between the first VTEP and the 2nd VTEP
Tunnel quantity, establishes two VXLAN tunnels in the present embodiment, and Tunnel1 is used for general service, corresponding business service grade compared with
It is low；Tunnel2 is used for particular service, and corresponding business service grade is higher, and Tunnel2 distributes to preferential guarantee bandwidth
VXLAN user uses.
It should be noted that the present invention establishes the quantity in VXLAN tunnels, however it is not limited to two VXLAN tunnels, can basis
The increase of business service grade, it is mutually deserved to establish VXLAN tunnels.
Then, two VTEP IP address, 1.1.1.1/32,1.1.1.2/32 are configured on the first VTEP；In the 2nd VTEP
Two VTEP IP address of upper configuration, 2.2.2.1/32,2.2.2.2/32.
Tunnel1 corresponds to 1.1.1.1/32 and 2.2.2.1/32.In the VTEP of the first VTEP connections the 2nd Tunnel1,
Source VTEP IP address is 1.1.1.1/32, and purpose VTEP IP address is 2.2.2.1/32；In the VTEP of the 2nd VTEP connections the first
Tunnel1 in, source VTEP IP address is 2.2.2.1/32, and purpose VTEP IP address is 1.1.1.1/32.
Tunnel2 corresponds to 1.1.1.2/32 and 2.2.2.2/32.In the VTEP of the first VTEP connections the 2nd Tunnel2,
Source VTEP IP address is 1.1.1.2/32, and purpose VTEP IP address is 2.2.2.2/32；In the VTEP of the 2nd VTEP connections the first
Tunnel2 in, source VTEP IP address is 2.2.2.2/32, and purpose VTEP IP address is 1.1.1.2/32.
If the first VTEP and the 2nd VTEP are virtual switch, virtual switch does not run Routing Protocol, first
VTEP and the 2nd VTEP can not issue route.So in order to the first VTEP and the 2nd VTEP can by itself advertising of route to pair
End on the interchanger direct-connected with VTEP, it is necessary to be configured, if the direct-connected interchanger is controlled by control device, control is set
It is standby by being configured under Netconf agreements, it is quiet by way of order line if the direct-connected interchanger does not have control device control
State configures, and concrete configuration is as follows, is only said below by taking the configuration that Tunnel1 corresponds to 1.1.1.1/32 and 2.2.2.1/32 as an example
Bright, it is identical that Tunnel2 corresponds to configuration principles of the 1.1.1.2/32 and 2.2.2.2/32 on direct-connected interchanger.
The first VTEP static routing is pointed in configuration on interchanger 1, and the static routing is purpose IP：1.1.1.1/32
Next-hop is the first VTEP；Then the static routing is introduced into the Routing Protocol of public network operation, assisted by the route of public network operation
View is advertised to the 2nd VTEP, and the 2nd VTEP acquires the route up to VTEP IP address 1.1.1.1/32.
Similarly, the 2nd VTEP static routing is pointed in configuration on interchanger 2, and the static routing is purpose IP：
2.2.2.1/32, next-hop is the 2nd VTEP；Then the static routing is introduced into the Routing Protocol of public network operation, transported by public network
Capable Routing Protocol is advertised to the first VTEP, and the first VTEP acquires the route up to VTEP IP address 2.2.2.1/32.
The above is entered to establishing two articles of VXLAN tunnels Tunnel1 and Tunnel2 between the first VTEP and the 2nd VTEP
Explanation is gone.Next, illustrating control device issues flow table, the process that user's message is forwarded by matching flow table.
The flow table that first VTEP receiving control apparatus issues, first flow table occurrence are the source MAC of user's message 1
MAC1 or source IP address IP1, action item are to carry out VXLAN encapsulation to user's message, are encapsulated successively in the outer layer of user's message
VXLAN heads with VNI1, UDP heads, outer layer IP heads, the source IP of wherein outer layer IP heads is Tunnel1 source VTEP
IP1.1.1.1/32, purpose IP are Tunnel1 purpose VTEP IP2.2.2.1/32, on the outgoing interface direct-connected with interchanger 1
User's message by VXLAN encapsulation is forwarded；Article 2 flow table occurrence is the source MAC MAC2 of user's message 2
Or source IP address IP2, action item are to carry out VXLAN encapsulation to user's message, encapsulate and carry successively in the outer layer of user's message
VNI2 VXLAN heads, UDP heads, outer layer IP heads, the source IP of wherein outer layer IP heads is Tunnel2 source VTEP IP1.1.1.2/
32, purpose IP are Tunnel2 purpose VTEP IP2.2.2.2/32, process on the outgoing interface direct-connected with interchanger 1
The user's message of VXLAN encapsulation forwards.
So, it is assumed that VM1 MAC Address is MAC1, and the user's message from VM1 is introduced by matching first flow table
Tunnel1 is forwarded；Assuming that VM2 MAC Address is MAC2, the user's message from VM2 is introduced by matching Article 2 flow table
Tunnel2 is forwarded.Due to Tunnel2 carry particular service, business service grade is higher, can allow in downstream table matching compared with
Few source address, so, in the case of Tunnel1 and Tunnel2 bandwidth identicals, the people that is used due to Tunnel2 less can be with
The preferential bandwidth requirement for ensureing special service.
Embodiment two
As shown in figure 4, it is the application networking scene schematic diagram of the embodiment of the present invention two.Hang and use under the first VTEP in Fig. 4
Family 1, user 2 and user 3, user 4, user 5 and user 6 are hung under the 2nd VTEP.Because VTEP and interchanger be all in the present embodiment
There is no control device control, so each configuration below, is all the static configuration by way of order line.Interchanger 1 and interchanger 2
It is direct-connected with the first VTEP and the 2nd VTEP respectively, also include other on the VXLAN tunnels between the first VTEP and the 2nd VTEP
Multiple intermediate equipments, do not show in figure.
First, according to the quantity of business service grade, it is determined that the VXLAN established between the first VTEP and the 2nd VTEP
Tunnel quantity, establishes two VXLAN tunnels in the present embodiment, and Tunnel1 is used for general service, corresponding business service grade compared with
It is low；Tunnel2 is used for particular service, and corresponding business service grade is higher, and Tunnel2 distributes to preferential guarantee bandwidth
VXLAN user uses.
It should be noted that the present invention establishes the quantity in VXLAN tunnels, however it is not limited to two VXLAN tunnels, business service
More grade, and the VXLAN tunnels quantity of foundation is more.
Then, two VTEP IP address, 1.1.1.1/32,1.1.1.2/32 are configured on the first VTEP；In the 2nd VTEP
Two VTEP IP address of upper configuration, 2.2.2.1/32,2.2.2.2/32.
Tunnel1 corresponds to 1.1.1.1/32 and 2.2.2.1/32.In the VTEP of the first VTEP connections the 2nd Tunnel1,
Source VTEP IP address is 1.1.1.1/32, and purpose VTEP IP address is 2.2.2.1/32；In the VTEP of the 2nd VTEP connections the first
Tunnel1 in, source VTEP IP address is 2.2.2.1/32, and purpose VTEP IP address is 1.1.1.1/32.
Tunnel2 corresponds to 1.1.1.2/32 and 2.2.2.2/32.In the VTEP of the first VTEP connections the 2nd Tunnel2,
Source VTEP IP address is 1.1.1.2/32, and purpose VTEP IP address is 2.2.2.2/32；In the VTEP of the 2nd VTEP connections the first
Tunnel2 in, source VTEP IP address is 2.2.2.2/32, and purpose VTEP IP address is 1.1.1.2/32.
If the first VTEP and the 2nd VTEP is General Physics interchanger, General Physics interchanger can run route association
View, mutually notice is route between the first VTEP and the 2nd VTEP.First VTEP acquires two VTEP IP up to the 2nd VTEP
Location 2.2.2.1/32 and 2.2.2.2/32 route.The 2nd same VTEP can acquire two VTEP IP up to the first VTEP
Address 1.1.1.1/ and 1.1.1.2/32 route.
First VTEP creates Tunnel1, and source VTEP IP address 1.1.1.1/32, purpose VTEP are configured in Tunnel1
IP address 2.2.2.1/32；VSI1 is created, VSI1 corresponds to VNI1 and Tunnel1；VSI1 is tied to user interface 1.In this way, with
Family message enters VSI1 from user interface 1, the source VTEP IP1.1.1.1/32 in VNI1 and Tunnel1 according to corresponding to VSI1
VXLAN encapsulation is carried out with purpose VTEP IP2.2.2.1/32, from corresponding VXLAN tunnels Tunnel1, by user's message from the
One VTEP is sent to the 2nd VTEP.
First VTEP creates Tunnel2, and source VTEP IP address 1.1.1.2/32, purpose VTEP are configured in Tunnel2
IP address 2.2.2.2/32；VSI2 is created, VSI2 corresponds to VNI2 and Tunnel2；VSI2 is tied to user interface 2.In this way, with
Family message enters VSI2 from user interface 2, the source VTEP IP1.1.1.2/32 in VNI2 and Tunnel2 according to corresponding to VSI2
VXLAN encapsulation is carried out with purpose VTEP IP2.2.2.2/32, from corresponding VXLAN tunnels Tunnel2, by user's message from the
One VTEP is sent to the 2nd VTEP.
Because Tunnel2 carries particular service, business service grade is higher, can be in user bound interface, it is allowed to tie up
Fixed less user interface, so, in the case of Tunnel1 and Tunnel2 bandwidth identicals, the use that is used due to Tunnel2
Family can preferentially ensure the bandwidth requirement of special service less.
Further, if hanging multiple users under VTEP some user interface, also it is corresponding with the VSI created
VLAN.Therefore user's message, which carries different VLAN, can enter different VSI forwardings, and also can enters different VXLAN tunnels
Forwarding.So, the first VTEP is established using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address respectively
The method in one VXLAN tunnel includes：
For the first VTEP connections the 2nd VTEP of establishment every VXLAN tunnel configuration IP address, wherein, institute
The first VTEP and the 2nd VTEP each IP address are stated respectively as source VTEP IP address and purpose VTEP IP address；To create
The 2nd VTEP connections the first VTEP every VXLAN tunnel configuration IP address, wherein, the 2nd VTEP and
One VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel, and is corresponding with VLAN；For user
Message enters VSI according to VLAN, and source VTEP IP and purpose the VTEP IP in VNI the and VXLAN tunnels according to corresponding to VSI is carried out
VXLAN is encapsulated, and from corresponding VXLAN tunnels, user's message is sent to the 2nd VTEP from the first VTEP.
So, the message of the different business grade of service is divided in different VLAN, the higher user's report of business service grade
Text can be identified by VLAN enters different VSI, so as to configure into the higher Tunnel2 of corresponding business service grade, from
And preferentially ensure the bandwidth requirement of special service.
According to the description of embodiment one and two, the present invention establishes the tunnel of the corresponding different business grade of service, for ensureing
The business of different brackets service request, the business of different brackets service request is imported to the tunnel of the different grades of service, it is ensured that high
The business of level services requirement preferentially passes through；When the network is congested, it is ensured that the business of high-level service request is still normal
Use.
Embodiment three
Further, reference picture 3 or Fig. 4, on the basis of embodiment one or two, although the difference that two VTEP are used
Address, the destination address and source address that two Tunnel are used are also different, but the path that two tunnels pass through also has
May be identical, so, it is assumed that be required on Tunnel1 and Tunnel2 path by interchanger 1, and outgoing interface is all to hand over
Change planes 1 port2, then even if there is the preferential function of importing tunnel to cannot guarantee that user's total flow exceedes outgoing interface port2
The flow of high business service grade user is not dropped during bandwidth, so the present embodiment proposes, by all intermediary switch
Upper setting qos policy, when message is by each interchanger, according to the qos policy set on the interchanger, high business will be matched
Corresponding to the grade of service on VXLAN tunnels, outer layer VTEP IP VXLAN messages, the corresponding forwarding into high priority are packaged with
Queue, enter row major forwarding, so as to be further ensured that the message of high business service grade can smoothly reach opposite end VTEP.
For example, for the interchanger 1 in Fig. 3 or Fig. 4, high priority is matched on the message entrance port1 of interchanger 1
The outer layer IP address of VXLAN messages, allows this message to enter the queue of limit priority, then the can of interchanger 1 is in exit port
Port2 preferentially forwards the message of this queue.In the present embodiment, because when message passes through interchanger 1, by VXLAN tunnels
Road, message encapsulate with VXLAN, so that matching is source VTEP on Tunnel2 corresponding to high business service grade
IP1.1.1.2/32 or purpose VTEP IP2.2.2.2/32, and then allow the flow of this user preferentially to walk Tunnel2 and be forwarded to
Opposite end, if the message bandwidth of other users also has residue, then enter Tunnel1 at random and forward.
Based on same inventive concept, one embodiment of the invention also proposes apparatus for forwarding message in a kind of VXLAN networks, should
For VTEP, referring to Fig. 5.The device 500 includes：
VTEP IP dispensing units 501, multiple VTEP IP address are configured on VTEP；
Tunnel building unit 502, built respectively using each VTEP IP address and opposite end VTEP each VTEP IP address
A VXLAN tunnel is found, each VXLAN tunnel corresponds to different business service grades, and the source and destination at tunnel both ends
VTEP IP address simultaneously differs, and turns for the user's message under the VTEP on the VXLAN tunnels of corresponding business service grade
Hair.
For being controlled by control device, flow table instructs the VXLAN networks of forwarding, and the device further comprises：
Flow table receiving unit 503, the flow table that receiving control apparatus issues, its flow table occurrence is with including the source of user's message
Location, flow table action item are included on corresponding VXLAN tunnels, the source VTEP in VNI the and VXLAN tunnels according to corresponding to source address
IP address and purpose VTEP IP address carry out VXLAN encapsulation to message, are forwarded the packet on the outgoing interface with switchboard direct connection
Go out.
VXLAN networks for running Routing Protocol, the tunnel building unit 502 are specifically used for：
For the first VTEP connections the 2nd VTEP of establishment every VXLAN tunnel configuration IP address, wherein, institute
The first VTEP and the 2nd VTEP each IP address are stated respectively as source VTEP IP address and purpose VTEP IP address；To create
The 2nd VTEP connections the first VTEP every VXLAN tunnel configuration IP address, wherein, the 2nd VTEP and
One VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel；
VSI is tied to user interface；Enter VSI from user interface for user's message, according to corresponding to VSI VNI and
Source VTEP IP address and purpose VTEP IP address in VXLAN tunnels carry out VXLAN encapsulation, will from corresponding VXLAN tunnels
User's message is sent to the 2nd VTEP from the first VTEP.
For run Routing Protocol VXLAN networks, the tunnel building unit 502 also particularly useful for：：
For the first VTEP connections the 2nd VTEP of establishment every VXLAN tunnel configuration IP address, wherein, institute
The first VTEP and the 2nd VTEP each IP address are stated respectively as source VTEP IP address and purpose VTEP IP address；To create
The 2nd VTEP connections the first VTEP every VXLAN tunnel configuration IP address, wherein, the 2nd VTEP and
One VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel, and is corresponding with VLAN；For user
Message enters VSI according to VLAN, source VTEP IP address and purpose VTEP IP in VNI the and VXLAN tunnels according to corresponding to VSI
Address carries out VXLAN encapsulation, and from corresponding VXLAN tunnels, user's message is sent to the 2nd VTEP from the first VTEP.
The device further comprises：Route learning unit 504, to opposite end VTEP notice route, and receive opposite end VTEP to
Its route noticed, so that VTEP IP address of the VTEP and opposite end VTEP study to other side.
Another embodiment of the present invention also proposes apparatus for forwarding message in a kind of VXLAN networks, applied to direct-connected with VTEP
Interchanger, referring to Fig. 6.The device 600 includes：
Static routing dispensing unit 601, the configuration sensing VTEP static routing on the interchanger；
Advertising of route unit 602, the static routing is introduced into the Routing Protocol of public network operation, the route run by public network
Agreement is advertised to opposite end VTEP, for the VTEP before flow table is received, gives itself advertising of route to opposite end VTEP.
The device further comprises：
Preferential retransmission unit 603, according to the QoS policy set on the interchanger, high business clothes will be matched
Corresponding to grade of being engaged on VXLAN tunnels, the VXLAN messages of outer layer VTEP IP address are packaged with, it is corresponding to turn into high priority
Queue is sent out, enters row major forwarding.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (14)
1. message forwarding method in a kind of VXLAN networks, the VXLAN networks first including VXLAN tunnels both ends are virtually logical
Road terminal VTEP and the 2nd VTEP, this method include：
Multiple VTEP IP address are respectively configured on the first VTEP and the 2nd VTEP；
First VTEP establishes one article using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address respectively
VXLAN tunnels, each VXLAN tunnel corresponds to different business service grades, for the user's message under the first VTEP right
Answer and forwarded on the VXLAN tunnels of business service grade.
2. the method as described in claim 1, it is characterised in that for being controlled by control device, flow table instructs the VXLAN of forwarding
Network, after tunnel building, this method further comprises：
The flow table that first VTEP receiving control apparatus issues, its flow table occurrence include the source address of user's message, flow table action
Item is included on corresponding VXLAN tunnels, source VTEP IP address and mesh in VNI the and VXLAN tunnels according to corresponding to source address
VTEP IP address to message carry out VXLAN encapsulation, forwarded the packet away on the outgoing interface with switchboard direct connection.
3. the method as described in claim 1, it is characterised in that the VXLAN networks for running Routing Protocol, described first
VTEP establishes one article of VXLAN tunnel using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address respectively
Method includes：
For the first VTEP connections the 2nd VTEP of establishment every VXLAN tunnel configuration IP address, wherein, described
One VTEP and the 2nd VTEP each IP address are respectively as source VTEP IP address and purpose VTEP IP address；For the institute of establishment
The 2nd VTEP connections the first VTEP every VXLAN tunnel configuration IP address is stated, wherein, the 2nd VTEP and first
VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel；
VSI is tied to user interface；Enter VSI from user interface for user's message, the VNI and VXLAN according to corresponding to VSI
Source VTEP IP address and purpose VTEP IP address in tunnel carry out VXLAN encapsulation, from corresponding VXLAN tunnels, by user
Message is sent to the 2nd VTEP from the first VTEP.
4. the method as described in claim 1, it is characterised in that the VXLAN networks for running Routing Protocol, described first
VTEP establishes one article of VXLAN tunnel using each VTEP IP address and the VTEP of opposite end the 2nd each VTEP IP address respectively
Method includes：
For the first VTEP connections the 2nd VTEP of establishment every VXLAN tunnel configuration IP address, wherein, described
One VTEP and the 2nd VTEP each IP address are respectively as source VTEP IP address and purpose VTEP IP address；For the institute of establishment
The 2nd VTEP connections the first VTEP every VXLAN tunnel configuration IP address is stated, wherein, the 2nd VTEP and first
VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel, and is corresponding with VLAN；For user's message
VSI is entered according to VLAN, source VTEP IP address and purpose VTEP IP address in VNI the and VXLAN tunnels according to corresponding to VSI
VXLAN encapsulation is carried out, from corresponding VXLAN tunnels, user's message is sent to the 2nd VTEP from the first VTEP.
5. the method as described in claim 3 or 4, it is characterised in that the first VTEP respectively using each VTEP IP address with
The VTEP of opposite end the 2nd each VTEP IP address is established before one article of VXLAN tunnel, and this method further comprises：Described first
2nd VTEP notices route described in VTEP to opposite end, and the route that the 2nd VTEP notices to it is received, so that described first
VTEP IP address of VTEP and the 2nd VTEP study to other side.
A kind of 6. message forwarding method in VXLAN networks, applied to straight with the first tunnel terminal VTEP described in claim 1
Interchanger even；This method includes：
The first VTEP static routing is pointed in configuration on the interchanger；
The static routing being introduced into the Routing Protocol of public network operation, the Routing Protocol run by public network is advertised to the 2nd VTEP,
For the first VTEP before flow table is received, itself advertising of route is given to the 2nd VTEP.
7. method as claimed in claim 6, when message passes through interchanger, this method further comprises：
According to the QoS policy set on the interchanger, VXLAN tunnels corresponding to high business service grade will be matched
On, the VXLAN messages of outer layer VTEP IP address are packaged with, the corresponding forwarding queue into high priority, enter row major forwarding.
8. apparatus for forwarding message in a kind of VXLAN networks, the device is applied to tunnel terminal VTEP, including：
VTEP IP dispensing units, multiple VTEP IP address are configured on VTEP；
Tunnel building unit, establish one using each VTEP IP address and opposite end VTEP each VTEP IP address respectively
VXLAN tunnels, each VXLAN tunnel corresponds to different business service grades, for the user's message under the VTEP right
Answer and forwarded on the VXLAN tunnels of business service grade.
9. device as claimed in claim 8, it is characterised in that for being controlled by control device, flow table instructs the VXLAN of forwarding
Network, the device further comprise：
Flow table receiving unit, the flow table that receiving control apparatus issues, its flow table occurrence include the source address of user's message, flow table
Action item is included on corresponding VXLAN tunnels, the source VTEP IP address in VNI the and VXLAN tunnels according to corresponding to source address
VXLAN encapsulation is carried out to message with purpose VTEP IP address, forwarded the packet away on the outgoing interface with switchboard direct connection.
10. device as claimed in claim 8, it is characterised in that the VXLAN networks for running Routing Protocol, the tunnel
Unit is established to be specifically used for：
For the VTEP of the first VTEP connections the 2nd of establishment every VXLAN tunnel configuration IP address, wherein, the first VTEP and
2nd VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；For described the second of establishment
VTEP connections the first VTEP every VXLAN tunnel configuration IP address, wherein, the 2nd VTEP's and the first VTEP is every
Individual IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel；
VSI is tied to user interface；Enter VSI from user interface for user's message, the VNI and VXLAN according to corresponding to VSI
Source VTEP IP address and purpose VTEP IP address in tunnel carry out VXLAN encapsulation, from corresponding VXLAN tunnels, by user
Message is sent to the 2nd VTEP from the first VTEP.
11. device as claimed in claim 8, it is characterised in that the VXLAN networks for running Routing Protocol, the tunnel
Establish unit also particularly useful for：
For the VTEP of the first VTEP connections the 2nd of establishment every VXLAN tunnel configuration IP address, wherein, the first VTEP and
2nd VTEP each IP address is respectively as source VTEP IP address and purpose VTEP IP address；For described the second of establishment
VTEP connections the first VTEP every VXLAN tunnel configuration IP address, wherein, the 2nd VTEP's and the first VTEP is every
Individual IP address is respectively as source VTEP IP address and purpose VTEP IP address；
VSI is created, each VSI specifies corresponding VNI and VXLAN tunnel, and is corresponding with VLAN；For user's message
VSI is entered according to VLAN, source VTEP IP address and purpose VTEP IP address in VNI the and VXLAN tunnels according to corresponding to VSI
VXLAN encapsulation is carried out, from corresponding VXLAN tunnels, user's message is sent to the 2nd VTEP from the first VTEP.
12. the device as described in claim 10 or 11, it is characterised in that the device further comprises：Route learning unit, to
Opposite end VTEP notice routes, and receive the route that opposite end VTEP notice to it, so that the VTEP and opposite end VTEP study is arrived pair
The VTEP IP address of side.
A kind of 13. apparatus for forwarding message in VXLAN networks, applied to direct-connected with tunnel terminal VTEP described in claim 8
Interchanger；The device includes：
Static routing dispensing unit, the configuration sensing VTEP static routing on the interchanger；
Advertising of route unit, the static routing is introduced into the Routing Protocol of public network operation, the Routing Protocol run by public network leads to
Accuse and give opposite end VTEP, for the VTEP before flow table is received, give itself advertising of route to opposite end VTEP.
14. device as claimed in claim 13, the device further comprises：
Preferential retransmission unit, according to the QoS policy set on the interchanger, high business service grade pair will be matched
On the VXLAN tunnels answered, the VXLAN messages of outer layer VTEP IP address are packaged with, correspond to the forwarding queue into high priority,
Enter row major forwarding.
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| CN105490884B (en) * | 2015-12-14 | 2019-04-02 | 迈普通信技术股份有限公司 | A kind of VXLAN tunnel detection method and device |
| CN106921573B (en) * | 2015-12-28 | 2020-04-14 | 华为技术有限公司 | NVo3 method and device for issuing tenant route in network |
| CN107222409B (en) * | 2016-03-22 | 2021-01-29 | 华为技术有限公司 | Method and node for forwarding traffic |
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