CN105791457B - A kind of data processing method and device - Google Patents
A kind of data processing method and device Download PDFInfo
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- CN105791457B CN105791457B CN201610107880.1A CN201610107880A CN105791457B CN 105791457 B CN105791457 B CN 105791457B CN 201610107880 A CN201610107880 A CN 201610107880A CN 105791457 B CN105791457 B CN 105791457B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4541—Directories for service discovery
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Abstract
The present invention provides a kind of data processing method and device, the described method includes: when the first VTEP equipment receives the flow of the neighbours' VTEP device forwards of itself, and when the corresponding ARP entry of the purpose IP address that does not inquire the flow, carry out flooding for the ARP request message of the destination IP address in this website；If the first VTEP equipment does not receive the arp reply message for the destination IP address in the first preset time, then ARP flooding instruction message is sent to target base VTEP equipment, the ARP flooding instruction message carries the destination IP address, so that the target base VTEP equipment carries out flooding for the ARP request message of the destination IP address in this website, and after receiving the arp reply message for the destination IP address, the corresponding ARP entry of the arp reply message is synchronized to neighbours' VTEP equipment by the target base VTEP equipment.The flooding of ARP message in IP backbone can be reduced using the embodiment of the present invention.
Description
Technical field
The present invention relates to network communication technology field more particularly to a kind of data processing method and devices.
Background technique
EVPN (Ethernet Virtual Private Network, ether Virtual Private Network) network and BGP
(Border Gateway Protocol, Border Gateway Protocol)/MPLS (Multi-Protocol Label Switching, it is more
Protocol label exchange) IP (Internet Protocol, Internet protocol) VPN network structure it is similar, in order to realize each station
Intercommunication between point (Site), in the online PE of operator backbone (Provider Edge, service provider network edge) equipment
It establishes EVPN example and accesses CE (Customer Edge, customer network edge) equipment of each website, while between each PE
Establish neighborhood and MPLS lsp tunnel.
In EVPN network, when VM (Virtual Machine, virtual machine) (CE in EVPN network) is online, usually
It can be to VTEP (VXLAN (virtual Extensible Local Area Network, virtual expansible local area network) Tunnel
End Point, VXLAN tunneling termination) equipment (PE in EVPN network) transmission gratuitous ARP (Address Resolution
Protocol, address resolution protocol) message.MAC (Media Access Control, media of the VTEP learning equipment to local terminal
Access control) after list item and ARP entry, MAC address entries and ARP entry are synchronized to by EVPN bgp neighbor by bgp protocol.
However, there is also the characteristics of a kind of silence VM, this VM in EVPN network to be:, will not active transmission when online
Gratuitous ARP packet.To which VTEP, to the ARP entry of silence VM, also can not be just synchronized to opposite end VTEP and set without calligraphy learning
It is standby, cause the flow between VM that can not forward.
Summary of the invention
The present invention provides a kind of data processing method and device, to solve under silence VM scene ARP message in IP backbone
In flooding, the problem of influencing the business of IP backbone network.
According to a first aspect of the embodiments of the present invention, a kind of data processing method is provided, applied in EVPN network
One VTEP equipment, which comprises
When the first VTEP equipment receives the flow of the neighbours' VTEP device forwards of itself, and the stream is not inquired
When the corresponding Address Resolution Protocol ARP list item of the purpose IP address of amount, carried out in this website for the destination IP address
ARP request message flooding；
If the first VTEP equipment does not receive the arp reply for the destination IP address in the first preset time
Message, then send ARP flooding instruction message to target base VTEP equipment, and the ARP flooding instruction message carries the mesh
IP address so that the target base VTEP equipment carries out the ARP request report for the destination IP address in this website
Text flooding, and after receiving the arp reply message for the destination IP address, the target base VTEP equipment will be described
The corresponding ARP entry of arp reply message is synchronized to neighbours' VTEP equipment of the target base VTEP equipment.
According to a second aspect of the embodiments of the present invention, a kind of data processing equipment is provided, applied in EVPN network
One VTEP equipment, described device include:
Receiving unit, the flow of neighbours' VTEP device forwards for receiving the first VTEP equipment；
First transmission unit, for not inquiring the corresponding address resolution of purpose IP address of the flow when described device
When agreement ARP entry, carry out flooding for the ARP request message of the destination IP address in this website；
Second transmission unit, if not received in the first preset time for the destination IP for the receiving unit
The arp reply message of address then sends ARP flooding instruction message, the ARP flooding instruction message to target base VTEP equipment
The destination IP address is carried, so that the target base VTEP equipment is carried out in this website for the destination IP address
ARP request message flooding, and after receiving the arp reply message for the destination IP address, the target base
The corresponding ARP entry of the arp reply message is synchronized to neighbours' VTEP equipment by VTEP equipment.
Using the embodiment of the present invention, when the flow for receiving neighbours' VTEP device forwards, and the mesh of the flow is not inquired
IP address corresponding ARP entry when, carry out flooding for the ARP request message of the purpose IP address in this website；If not
The arp reply message for the purpose IP address is received within a preset time, then sends ARP flood to target base VTEP equipment
Refer to and show message, ARP flooding instruction message carries the destination IP address, so that target base VTEP equipment is in our station
It carries out flooding for the ARP request message of the purpose IP address in point, and is receiving the arp reply for the purpose IP address
After message, which is synchronized to neighbours' VTEP equipment, i.e., is this receiving destination not
In website when the flow of host, it is adjacent that the purpose IP address of flow is sent to target identical with itself gateway virtual interface IP address
It occupies VTEP equipment and carries out corresponding ARP request message flooding, it is and in the prior art, main in this website receiving destination not and being
The implementation for directly carrying out corresponding ARP request message flooding when the flow of machine in VXLAN L 2 broadcast domain is compared, and is reduced
The flooding of ARP message in IP backbone.
Detailed description of the invention
Fig. 1 is a kind of network architecture schematic diagram of EVPN network；
Fig. 2 is a kind of flow diagram of data processing method provided in an embodiment of the present invention；
Fig. 3 is a kind of configuration diagram of concrete application scene provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of data processing equipment provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another data processing equipment provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another data processing equipment provided in an embodiment of the present invention.
Specific embodiment
Technical solution in embodiment in order to enable those skilled in the art to better understand the present invention, and make of the invention real
The above objects, features, and advantages for applying example can be more obvious and easy to understand, with reference to the accompanying drawing to technical side in the embodiment of the present invention
Case is described in further detail.
When to perceive VM (being assumed to be VM1) online for VTEP equipment (being assumed to be VTEP1), but do not receive within a preset time
When gratuitous ARP packet (VM1 is silence VM), VTEP1 can be by the Host routes and MAC of GW (Gateway, gateway) virtual interface
Address synchronization gives all opposite end VTEP equipment (such as VTEP2 and VTEP3) as EVPN bgp neighbor；Opposite end VTEP equipment connects
After the Host routes and MAC Address that receive the synchronous GW virtual interface of VTEP1, corresponding APR list item is generated；VM2 under VTEP2
When wanting access to VM1, after flow to VTEP2, VTEP2 inquires corresponding Host routes and ARP entry, and it is synchronous to hit VTEP1
List item information, thus, forward the traffic to VTEP1.After VTEP1 receives the flow, according to the purpose IP address master of flow
It is dynamic to send ARP request message, the ARP information of VM1 is requested, flow is then transmitted to VM1.
However practice discovery, in EVPN network, there may be multiple VTEP equipment GW virtual interface IP having the same
Address, for the network architecture shown in Fig. 1, it is assumed that VTEP2 and VTEP3 equipment is all the GW equipment of the same VXLAN business, it
External gateway virtual interface IP address be all 11.1.1.1/24, then when the two silence VM of VM3 and VM4 simultaneously it is online when,
VTEP2 and VTEP3 can be directed to this host road 11.1.1.1/24 to the routing iinformation of the synchronous 11.1.1.1/24 of VTEP1, BGP
By, the preferred motion of next-hop can be done, if preferential next-hop result is directed to VTEP3, then synchronized on VTEP1
The next-hop that forwarding-table item comes into force is VTEP3 equipment.
At this point, flow can be introduced on VTEP3 if VM1 is to VM3 transmitted traffic, and after flow reaches VTEP3, VTEP3 root
ARP request actively is initiated to the VM of local terminal according to the purpose IP address 11.1.1.2 of flow, when VTEP3 is not received within a preset time
To VM3 ARP message when, VTEP3 can will be flooded for the ARP request message of 11.1.1.2 in VXLAN L 2 broadcast domain
Broadcast, results in flooding of the ARP message in IP backbone, influences the business of IP backbone network.
Fig. 2 is referred to, Fig. 2 is a kind of flow diagram of data processing method provided in an embodiment of the present invention, this method
It can be applied to the first VTEP equipment in EVPN network, as shown in Fig. 2, this method may comprise steps of:
Step 201 receives the flow of the neighbours' VTEP device forwards of itself when the first VTEP equipment, and does not inquire this
When the corresponding ARP entry of the purpose IP address of flow, the ARP request message flood for the purpose IP address is carried out in this website
It is general.
In the embodiment of the present invention, the first VTEP equipment and the VTEP equipment for being not specific to a certain fixation, but may refer to
Any VTEP equipment in EVPN network, the embodiment of the present invention is subsequent no longer to be repeated.
In the embodiment of the present invention, when the neighbours VTEP equipment (EVPN bgp neighbor) that the first VTEP equipment receives itself turns
When the flow of hair, the purpose IP address of the first available flow of VTEP equipment, and itself is inquired according to the purpose IP address
The ARP entry of storage, to determine whether there is ARP entry corresponding with the purpose IP address.
If the first VTEP equipment does not inquire corresponding ARP entry according to the purpose IP address of the flow received, first
VTEP equipment can carry out flooding for the ARP request message of the purpose IP address in this website, i.e., to connecting with itself
VM broadcast is directed to the ARP request of the purpose IP address, with the corresponding ARP information of the request purpose IP address.
If step 202, the first VTEP equipment do not receive the ARP for the purpose IP address in the first preset time and answer
Message is answered, then sends ARP flooding instruction message to target base VTEP equipment, ARP flooding instruction message carries the purpose
IP address, so that target base VTEP equipment carries out flooding for the ARP request message of the purpose IP address in this website, and
After receiving the arp reply message for the purpose IP address, which is synchronized to mesh
Mark neighbours' VTEP equipment of neighbours VTEP equipment.
In the embodiment of the present invention, the first VTEP equipment carries out the ARP request message for purpose IP address in this website
After flooding, after the VM in this website receives the ARP request message, with matching the destination IP carried in the ARP request message
Location and the IP address of itself, if the two is identical, VM returns to corresponding arp reply message to the first VTEP equipment；Otherwise, VM
Corresponding arp reply message will not be returned to the first VTEP equipment.
If the first VTEP equipment carries out flooding for the ARP request message of purpose IP address in this website, and not pre-
If (the first preset time can be preset according to concrete application scene) receives for the purpose IP address in the time
Arp reply message then shows that the destination of the flow is not the VM in this website, and the first VTEP equipment can be to target neighbour at this time
It occupies VTEP equipment and sends ARP flooding instruction message.
It is worth noting that in embodiments of the present invention, target base VTEP equipment is often referred to the neighbour of the first VTEP equipment
The part VTEP equipment in VTEP equipment is occupied, neighbours such as identical with the gateway virtual interface IP address of the first VTEP equipment itself
VTEP equipment, or it is divided into neighbours' VTEP equipment etc. with the first VTEP equipment for same grouping in advance.
Preferably, target base VTEP equipment be the first VTEP equipment neighbours' VTEP equipment in the first VTEP equipment
The identical neighbours VTEP equipment of gateway virtual interface IP address, is also illustrated as example herein.
In embodiments of the present invention, it is contemplated that when there is silence VM in website, VTEP equipment can be to itself neighbours
VTEP equipment master synchronization routes, and the IP address in the Host routes is the gateway virtual interface IP address of VTEP equipment, and due to
There may be the identical VTEP equipment of multiple gateway virtual interface IP address in EVPN network, as multiple gateway virtual interface IP
Have under the identical VTEP equipment in location silent VM it is online when, VTEP equipment may receive multiple purpose IP address it is identical but
The different routing iinformation of next-hop, VTEP equipment progress next-hop is preferential at this time, may result in and is sent to multiple gateway void
It is empty to be forwarded to multiple gateway for the flow of the VM under some VTEP equipment in the identical VTEP equipment of interface IP address
Other VTEP equipment in the identical VTEP equipment of interface IP address.
Therefore, in embodiments of the present invention, when the first VTEP equipment receives the stream of the neighbours' VTEP device forwards of itself
When measuring, and determining that the destination of the flow is not the VM in this website, the first VTEP equipment will can't directly be directed to the flow
The ARP request message of purpose IP address flooded in VXLAN L 2 broadcast domain, but first the purpose IP address can be taken
Band ARP flood instruction message in be sent to target base VTEP equipment (preferably, target base VTEP equipment be and itself
The identical neighbours VTEP equipment of gateway virtual interface IP address)；Wherein, ARP flooding instruction message, which is used to indicate, receives the message
VTEP equipment the ARP request message for the above-mentioned purpose IP address carried in the message is broadcasted in website.
It, can be in our station after target base VTEP equipment receives the ARP flooding instruction message of the first VTEP equipment transmission
It carries out flooding for the ARP request message of the purpose IP address in point, i.e., the VM broadcast into this website is for the destination IP
The ARP request message of location.When target base VTEP equipment receives the arp reply message for the purpose IP address, the mesh
The corresponding ARP entry of the purpose IP address can be generated in mark neighbours VTEP equipment, and the ARP entry is synchronized to neighbours VTEP and is set
Standby (the neighbours VTEP equipment of target base VTEP equipment), thus, the neighbours VTEP equipment of target base VTEP equipment can be with
The forward-path of above-mentioned flow is determined according to the ARP entry, to reduce backbone in the case where realizing that flow correctly forwards
The flooding of ARP message in IP network.
Wherein, if the first VTEP equipment is flooded to target base VTEP equipment transmission ARP after indicating message, not default
The synchronous ARP entry of target base VTEP equipment is received in time, then it is assumed that the purpose IP address is also not target base
The IP address of host in VTEP equipment sites, at this point, the first VTEP equipment can directly carry out ARP request flood according to existing realization
It is general, or handled according to other strategies, it is not limited in the embodiment of the present invention.
In the embodiment of the present invention, to achieve the goals above, when target base VTEP equipment be with the first VTEP equipment from
When the identical neighbours VTEP equipment of body gateway virtual interface IP address, need to make the VTEP equipment in EVPN network to determine whether there is
Gateway virtual interface IP address neighbours VTEP equipment identical with the gateway virtual interface IP address of itself.
In a kind of optional embodiment, it can be configured and itself net in VTEP equipment by way of static configuration
The address information for closing the identical neighbours VTEP equipment of virtual interface IP address (establishes the ground of EVPN bgp neighbor between VTEP equipment
Location is no longer repeated below), thus, when VTEP equipment receives the flow of neighbours VTEP forwarding, and the destination of the determining flow
When not being the VM in this website, purpose IP address can be transmitted to and itself gateway virtual interface IP address according to the address information
Identical neighbours VTEP equipment.
For example, operation maintenance personnel can be after the completion of the network architecture be built, according to the configuration information of VTEP equipment, such as gateway void
Interface IP address information, determines the identical VTEP equipment of gateway virtual interface IP address present in network, and to each VTEP equipment
Configuration file is issued, record has neighbours VTEP identical with the gateway virtual interface IP address of VTEP equipment itself in the configuration file
The address information of equipment.
In another optional embodiment, the ground of neighbours VTEP equipment identical with itself gateway virtual interface IP address
Location information can obtain in the following manner:
When the route synchronization message for receiving the transmission of neighbours' VTEP equipment, and it is identical, next to determine that there are purpose IP address
When jumping different routing iinformations, the routing iinformation progress next-hop identical to the purpose IP address, next-hop is different is preferential, and will
The device address next hop neighbor VTEP of not preferred routing iinformation is sent to next hop neighbor VTEP equipment of preferred routing iinformation,
It is reported for example, carrying the address information of next hop neighbor VTEP equipment of the not preferred routing iinformation in BGP update (update)
In literary or other newly-increased protocol massages, it is sent to next hop neighbor VTEP equipment of preferred routing iinformation, so that the preferred routing
The address information recording of next hop neighbor VTEP equipment of not preferred routing iinformation is by next hop neighbor VTEP equipment of information
The address information of target base VTEP equipment, i.e., by gateway virtual interface IP address neighbour identical with itself gateway virtual interface IP address
The address information recording for occupying VTEP equipment is the address information of target base VTEP equipment, for example, by the address information with list item
Form be recorded in specified memory space.
In this embodiment, when the route synchronization that neighbours' VTEP equipment that the first VTEP equipment receives itself is sent disappears
When breath, the first VTEP equipment can be according to the purpose IP address and next-hop of the routing iinformation carried in the route synchronization message
Information, inquiry is identical as the purpose IP address of the routing iinformation with the presence or absence of purpose IP address, but the routing letter that next-hop is different
Breath, and if it exists, then the first VTEP equipment needs to carry out next-hop preferred (its specific preference policy embodiment of the present invention does not limit
Calmly), and by the device address next hop neighbor VTEP of not preferred routing iinformation it is sent to next hop neighbor of preferred routing iinformation
VTEP equipment, so that next hop neighbor VTEP equipment of the preferred routing iinformation is by the gateway of gateway virtual interface IP address and itself
The address information recording of the identical neighbours VTEP equipment of virtual interface IP address is the address information of target base VTEP equipment.
As an example it is assumed that VTEP1, VTEP2 and VTEP3 neighbours VTEP equipment, and the gateway of VTEP2 and VTEP3 each other
Virtual interface IP address is identical (assuming that being 11.1.1.1/24), when there is silent VM online simultaneously under VTEP2 and VTEP3,
VTEP2 and VTEP3 can be to the routing iinformations of the synchronous 11.1.1.1/24 of VTEP1；VTEP1 receive two routing iinformations it
Afterwards, it needs to carry out next-hop to this two routings preferred, it is assumed that preferred next-hop result is directed toward VTEP3, then VTEP1 can lead to
It crosses BGP update message and the address information of VTEP2 is sent to VTEP3, so that VTEP3 knows the gateway virtual interface IP of VTEP2
Address is identical as the gateway virtual interface IP address of itself；When VTEP3 receives the flow of neighbours VTEP forwarding, and determine flow
When destination is not the VM in this website, the purpose IP address of the flow can be sent to VTEP2 by VTEP3, by VTEP2 at this
The ARP request message flooding of the purpose IP address is carried out in website, and after learning to corresponding ARP entry, carries out the ARP table
The synchronization of item.
Correspondingly, in embodiments of the present invention, when the first VTEP equipment detects that VM is online, and not in the second preset time
When inside receiving the gratuitous ARP packet of VM transmission, the first VTEP equipment can be to the synchronous purpose of the neighbours' VTEP equipment of itself
IP address is the routing iinformation of gateway virtual interface IP address；In turn, the neighbours VTEP that the first VTEP equipment can receive itself is set
The next hop neighbor VTEP equipment for the not preferred routing iinformation that preparation is sent address information (i.e. gateway virtual interface IP address and itself
The address information of the identical neighbours VTEP equipment of gateway virtual interface IP address), and the next-hop of the not preferred routing iinformation is adjacent
The address information recording for occupying VTEP equipment is the address information of target base VTEP equipment；Wherein, which is to receive
Above-mentioned purpose IP address is neighbours' VTEP equipment of the routing iinformation of gateway virtual interface IP address, is determining that there are purpose IP address
It is identical as the gateway virtual interface IP address, but the routing iinformation that next-hop is different, and be by the above-mentioned purpose IP address received
It is sent when the routing iinformation of gateway virtual interface IP address is as preferred routing iinformation.
As an example it is assumed that VTEP1, VTEP2 and VTEP3 neighbours VTEP equipment each other, when VTEP1 detects that VM is online,
And when not receiving the gratuitous ARP packet of VM transmission in the second preset time, VTEP1 can be synchronous with VTEP3 to VTEP2
Purpose IP address is the routing iinformation (address that next-hop is VTEP1) of gateway virtual interface IP address (being assumed to be 11.1.1.1)；
Assuming that discovery presence is identical as the routing iinformation purpose IP address after VTEP2 receives the routing iinformation, but next-hop and the road
It is different (assuming that address that next-hop is VTEP3) by information, if the routing iinformation is determined as preferably routing by VTEP2, i.e., will
VTEP1 is determined as the preferred next-hop of the routing, then the address information of VTEP3 can be sent to VTEP1 by VTEP2；VTEP1 connects
After the address information for receiving VTEP3, the gateway virtual interface IP address of VTEP3 and the gateway virtual interface IP address of itself can be determined
Identical (i.e. the target base VTEP equipment that VTEP3 is VTEP1), and record the address information of VTEP3.
As an alternative embodiment, the first VTEP equipment is sent out to target base VTEP equipment in above-mentioned steps 202
ARP flooding instruction message is sent, ARP flooding instruction message carries the purpose IP address, so that target base VTEP equipment is at this
The ARP request message that the purpose IP address is carried out in website floods, and may include:
First VTEP equipment to the target base VTEP equipment transmission carry newly-increased TLV (Type, Length, Value,
Type lengths values) field bgp protocol message, the purpose IP address is carried in the newly-increased TLV field, so that the target base
VTEP equipment determines in the bgp protocol message received there are when the newly-increased TLV field, carries out in this website newly-increased for this
The ARP request message of the purpose IP address carried in TLV field floods.
It in this embodiment, can be by being extended to the bgp protocol message between neighbours' VTEP equipment, in BGP
Increase a TLV field in protocol massages, which is used to carry the purpose IP address of above-mentioned flow, thus, when first
VTEP equipment receives the flow of neighbours' VTEP device forwards, and when determining that the destination of the flow is not the VM in this website,
First VTEP equipment can (preferably, target base VTEP equipment be for gateway virtual interface IP to target base VTEP equipment
Location neighbours VTEP equipment identical with the gateway virtual interface IP address of the first VTEP equipment) send carry newly-increased TLV field
Bgp protocol message carries the purpose IP address of above-mentioned flow in the bgp protocol message；Target base VTEP equipment receives
The bgp protocol message, and determine in the bgp protocol message when carrying above-mentioned newly-increased TLV field, it can be carried out in this website
Increase the ARP request message flooding of the purpose IP address carried in TLV field newly for this.
Correspondingly, in embodiments of the present invention, it is sent when neighbours' VTEP equipment that the first VTEP equipment receives itself
When carrying the bgp protocol message of above-mentioned newly-increased TLV field, it can carry out increasing newly in TLV field for this in this website and take
The ARP request message of the purpose IP address of band floods.
As it can be seen that in the method flow described in Fig. 2, by the flow for receiving neighbours' VTEP device forwards, and really
When the destination of the fixed flow is not the VM in this website, ARP flooding instruction message is sent to target base VTEP equipment, it should
ARP flooding instruction message carries the purpose IP address of the flow, and needle is carried out in this website by target base VTEP equipment
It, will to the ARP request message flooding of the purpose IP address, and after receiving the arp reply message for the purpose IP address
The corresponding ARP entry of arp reply message is synchronized to neighbours' VTEP equipment, and in the prior art, when the destination for determining flow
When not being the VM in this website, the ARP request message flooding of the purpose IP address is directly carried out in VXLAN L 2 broadcast domain
Realization is compared, and the flooding of ARP message in IP backbone is reduced.
In order to make those skilled in the art more fully understand technical solution provided in an embodiment of the present invention, below with reference to specific
Application scenarios technical solution provided in an embodiment of the present invention is illustrated.
Fig. 3 is referred to, Fig. 3 is a kind of configuration diagram of concrete application scene provided in an embodiment of the present invention, wherein
Neighbours VTEP equipment, the gateway virtual interface IP address of VTEP1 are 12.1.1.1 each other by VTEP1, VTEP2 and VTEP3；VTEP2 and
The gateway virtual interface IP address of VTEP3 is 11.1.1.1；VM1 and VM2 is the host in VTEP1 website, and VM3 is the station VTEP2
Host in point, VM4 and VM5 are host in VTEP3 website, and VM3 and VM4 are silence VM.
Based on the application scenarios, data processing scheme provided in an embodiment of the present invention is accomplished by
1, as VM3 and VM4 online, since VM3 and VM4 is silence VM, VM3 (VM4) will not be to VTEP2
(VTEP3) gratuitous ARP packet is sent；
2, it is online by direct connected link UP to perceive VM3 (VM4) by VTEP2 (VTEP3), but does not receive within a preset time
The gratuitous ARP packet of VM3 (VM4), then it is that 24 Host routes of GW are synchronous to VTEP1；
3, it after VTEP1 receives the MAC/IP route synchronization message that the next-hop is respectively VTEP2 and VTEP3, carries out
The preferred operations of BGP routing, it is assumed that in the forwarding-table item finally obtained, the next-hop of hit 11.1.1.1/24 Host routes is
To the tunnel VXLAN of VTEP3, then, VTEP1 can send bgp protocol message to VTEP3 and will receive such as BGP update message
VTEP2 send 11.1.1.1/24 MAC/IP routing bgp session next hop address (i.e. VTEP2 with VTEP1 and
VTEP3 establishes address when EVPN bgp neighbor) it is sent to VTEP3, VTEP3 is built after receiving the bgp protocol message locally
Vertical one neighbours VTEP list item (i.e. record gateway virtual interface IP address and itself the gateway virtual connection for 11.1.1.1/24 routing
The address information of the identical neighbours VTEP equipment of mouth IP address)；
4, VM1 is needed to 11.1.1.2 converting flow, and after flow reaches VTEP1, VTEP1 inquires forwarding-table item, next-hop
Destination address is the tunnel VXLAN of VTEP3, thus, flow is subjected to VXLAN encapsulation, is forwarded to VTEP3；
5, after VTEP3 receives the flow, VXLAN decapsulation operation is carried out, original IP packet, purpose IP address are obtained
Inquire the machine routing for 11.1.1.2, VTEP3, the ARP entry of the not no 11.1.1.2 of discovery, VTEP3 equipment in this website into
The hand-manipulating of needle floods the ARP request message of 11.1.1.2, i.e., sends ARP request message to VM4 and VM5；
If 6, VTEP3 does not receive the arp reply message for 11.1.1.2 within a preset time, remember according in step 3
The address information of the gateway virtual interface IP address of record neighbours VTEP equipment identical with itself gateway virtual interface IP address, to correspondence
VTEP equipment (i.e. VTEP2) send and carry the bgp protocol message of newly-increased TLV field, include destination IP in the new field
Address 11.1.1.2；
7, it after VTEP2 receives the bgp protocol message, finds to carry newly-increased TLV in the bgp protocol message, then parses
The purpose IP address 11.1.1.2 carried in the TCL is obtained, and carries out the ARP request for the purpose IP address in this website
Message flooding, i.e., send the ARP request message for being directed to 11.1.1.2 to VM3；
8, after VTEP2 receives the arp reply message that VM3 is sent, it is right that 11.1.1.2 (i.e. the IP address of VM3) has been arrived in study
The ARP entry answered gives neighbours VTEP equipment (VTEP1 and VTEP3) by MAC/IP route synchronization, so that VM1 is sent to
11.1.1.2 after flow reaches VTEP1, VTEP1 can be forwarded value VTEP2, be sent to VM3 by VTEP2.
Through above description as can be seen that in technical solution provided in an embodiment of the present invention, when receiving neighbours VTEP
The flow of device forwards, and when the corresponding ARP entry of the purpose IP address that does not inquire the flow, it is directed in this website
The ARP request message of the purpose IP address floods；If not receiving the arp reply for the purpose IP address within a preset time
Message, then send ARP flooding instruction message to target base VTEP equipment, and ARP flooding instruction message carries the destination IP
Address, so that target base VTEP equipment carries out flooding for the ARP request message of the purpose IP address in this website, and
After receiving the arp reply message for the purpose IP address, which is synchronized to neighbour
VTEP equipment is occupied, i.e., when receiving destination not is the flow of host in this website, the purpose IP address of flow is sent to
The corresponding ARP request message flooding of identical with itself gateway virtual interface IP address target base VTEP equipment progress, and it is existing
In technology, directly corresponded in VXLAN L 2 broadcast domain when receiving destination not is the flow of host in this website
ARP request message flooding implementation compare, reduce the flooding of ARP message in IP backbone.
Fig. 4 is referred to, is a kind of structural schematic diagram of data processing equipment provided in an embodiment of the present invention, wherein the number
It can be applied to the first VTEP equipment in above-mentioned EVPN network according to processing unit, as shown in figure 4, the data processing equipment can be with
Include:
Receiving unit 410, the flow of neighbours' VTEP device forwards for receiving the first VTEP equipment；
First transmission unit 420, for not inquiring the corresponding address of purpose IP address of the flow when described device
When analysis protocol ARP entry, carry out flooding for the ARP request message of the destination IP address in this website；
Second transmission unit 430, if not received in the first preset time for the receiving unit 410 for described
The arp reply message of purpose IP address, then send ARP flooding instruction message to target base VTEP equipment, and the ARP flooding refers to
Show that message carries the destination IP address, so that the target base VTEP equipment is carried out in this website for the purpose
The ARP request message of IP address floods, and after receiving the arp reply message for the destination IP address, the target
The corresponding ARP entry of the arp reply message is synchronized to neighbours' VTEP equipment by neighbours VTEP equipment.
In an alternative embodiment, the target base VTEP equipment is in neighbours' VTEP equipment of the first VTEP equipment
Neighbours VTEP equipment identical with the gateway virtual interface IP address of the first VTEP equipment.
Please refer to fig. 5, Fig. 5 is the structural schematic diagram of another data processing equipment provided in an embodiment of the present invention,
On the basis of embodiment shown in Fig. 4, data processing equipment shown in fig. 5 may include:
Preferred cell 440, for receiving neighbours' VTEP equipment of the first VTEP equipment when the receiving unit 410
The route synchronization message of transmission, and when determining that there are purpose IP address is identical, next-hop is different routing iinformation, to the purpose
It is preferred that the routing iinformation that IP address is identical, next-hop is different carries out next-hop；
Correspondingly, second transmission unit 430 can be also used for next hop neighbor VTEP of not preferred routing iinformation
Device address is sent to next hop neighbor VTEP equipment of preferred routing iinformation, so that next hop neighbor of the preferred routing iinformation
The address information recording of next hop neighbor VTEP equipment of the not preferred routing iinformation is target base VTEP by VTEP equipment
The address information of equipment.
In an alternative embodiment, second transmission unit 430 can be also used for detecting virtual machine VM when described device
It is online, and the receiving unit do not received in the second preset time the VM transmission gratuitous ARP packet when, Xiang Suoshu first
The synchronous purpose IP address of neighbours' VTEP equipment of VTEP equipment is the routing iinformation of gateway virtual interface IP address；
The receiving unit 410 can be also used for the non-of the neighbours' VTEP equipment transmission for receiving the first VTEP equipment
It is preferred that the address information of next hop neighbor VTEP equipment of routing iinformation；
Correspondingly, referring to Figure 6 together, Fig. 6 is the structure of another data processing equipment provided in an embodiment of the present invention
Schematic diagram, on the basis of embodiment shown in Fig. 4, data processing equipment shown in fig. 6 may include:
Recording unit 450, for remembering the address information of next hop neighbor VTEP equipment of the not preferred routing iinformation
Record is the address information of target base VTEP equipment.
In an alternative embodiment, second transmission unit 430 can be also used for sending out to the target base VTEP equipment
The Border Gateway Protocol (BGP) protocol massages for carrying newly-increased type lengths values TLV field are sent, are carried in the newly-increased TLV field
There is the purpose IP address, so that the target base VTEP equipment determines that there are described new in the bgp protocol message received
When increasing TLV field, the ARP request message for the purpose IP address carried in the newly-increased TLV field is carried out in this website
Flooding.
In an alternative embodiment, first transmission unit 420 can be also used for receiving carrying when the receiving unit
When having the bgp protocol message of the newly-increased TLV field, carried out in this website for the mesh carried in the newly-increased TLV field
IP address ARP request message flooding.
The function of each unit and the realization process of effect are specifically detailed in the above method and correspond to step in above-mentioned apparatus
Realization process, details are not described herein.
For device embodiment, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.The apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
The purpose for needing to select some or all of the modules therein to realize the present invention program.Those of ordinary skill in the art are not paying
Out in the case where creative work, it can understand and implement.
As seen from the above-described embodiment, when the flow for receiving neighbours' VTEP device forwards, and the mesh of the flow is not inquired
IP address corresponding ARP entry when, carry out flooding for the ARP request message of the purpose IP address in this website；If not
The arp reply message for the purpose IP address is received within a preset time, then sends ARP flood to target base VTEP equipment
Refer to and show message, ARP flooding instruction message carries the destination IP address, so that target base VTEP equipment is in our station
It carries out flooding for the ARP request message of the purpose IP address in point, and is receiving the arp reply for the purpose IP address
After message, which is synchronized to neighbours' VTEP equipment, i.e., is this receiving destination not
In website when the flow of host, it is adjacent that the purpose IP address of flow is sent to target identical with itself gateway virtual interface IP address
It occupies VTEP equipment and carries out corresponding ARP request message flooding, it is and in the prior art, main in this website receiving destination not and being
The implementation for directly carrying out corresponding ARP request message flooding when the flow of machine in VXLAN L 2 broadcast domain is compared, and is reduced
The flooding of ARP message in IP backbone.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (10)
1. a kind of data processing method, applied to the first virtual expansible local area network tunnel in ether virtual LAN EVPN network
Road terminal VTEP equipment, which is characterized in that the described method includes:
When the first VTEP equipment receives the flow of the neighbours' VTEP device forwards of itself, and the flow is not inquired
When the corresponding Address Resolution Protocol ARP list item of purpose IP address, carry out asking for the ARP of the destination IP address in this website
Message is asked to flood；
If the first VTEP equipment does not receive the arp reply report for the destination IP address in the first preset time
Text, then send ARP flooding instruction message to target base VTEP equipment, and the ARP flooding instruction message carries the purpose
IP address, so that the target base VTEP equipment carries out the ARP request message for the destination IP address in this website
Flooding, and after receiving the arp reply message for the destination IP address, the target base VTEP equipment will be described
The corresponding ARP entry of arp reply message is synchronized to neighbours' VTEP equipment of the target base VTEP equipment；
Wherein, the target base VTEP equipment be the first VTEP equipment neighbours' VTEP equipment in the first VTEP
The identical neighbours VTEP equipment of gateway virtual interface IP address of equipment.
2. the method according to claim 1, wherein the method also includes:
When the first VTEP equipment receive itself neighbours' VTEP equipment transmission route synchronization message, and determine there are purposes
When the routing iinformation that IP address is identical, next-hop is different, the routing iinformation identical to the destination IP address, next-hop is different into
Row next-hop is preferred, and the device address next hop neighbor VTEP of not preferred routing iinformation is sent under preferred routing iinformation
One hop neighbor VTEP equipment, so that next hop neighbor VTEP equipment of the preferred routing iinformation is by the not preferred routing iinformation
The address information recording of next hop neighbor VTEP equipment is the address information of target base VTEP equipment.
3. the method according to claim 1, wherein the method also includes:
When the first VTEP equipment detects that virtual machine VM is online, and VM transmission is not received in the second preset time
When gratuitous ARP packet, the synchronous purpose IP address of neighbours' VTEP equipment of Xiang Zishen is the routing iinformation of gateway virtual interface IP address；
The next hop neighbor for the not preferred routing iinformation that neighbours' VTEP equipment that the first VTEP equipment receives itself is sent
The address information of VTEP equipment, and be by the address information recording of next hop neighbor VTEP equipment of the not preferred routing iinformation
The address information of target base VTEP equipment.
4. the method according to claim 1, wherein the first VTEP equipment is sent out to target base VTEP equipment
ARP flooding instruction message is sent, the ARP flooding instruction message carries the destination IP address, so that the target base
VTEP equipment carries out the ARP request message flooding of the destination IP address in this website, comprising:
The first VTEP equipment sends the side for carrying newly-increased type lengths values TLV field to the target base VTEP equipment
Boundary's gateway protocol bgp protocol message carries the destination IP address in the newly-increased TLV field, so that the target base
VTEP equipment determines that there are when the newly-increased TLV field, carry out in this website for described in the bgp protocol message received
The ARP request message flooding of the purpose IP address carried in newly-increased TLV field.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
When the first VTEP equipment receives the bgp protocol message for carrying the newly-increased TLV field, in this website into
The hand-manipulating of needle floods the ARP request message of the purpose IP address carried in the newly-increased TLV field.
6. a kind of data processing equipment, applied to the first virtual expansible local area network tunnel in ether virtual LAN EVPN network
Road terminal VTEP equipment, which is characterized in that described device includes:
Receiving unit, the flow of neighbours' VTEP device forwards for receiving the first VTEP equipment；
First transmission unit, for not inquiring the corresponding address resolution protocol of purpose IP address of the flow when described device
When ARP entry, carry out flooding for the ARP request message of the destination IP address in this website；
Second transmission unit, if not received in the first preset time for the receiving unit for the destination IP address
Arp reply message, then send ARP flooding instruction message to target base VTEP equipment, ARP flooding instruction message carries
There is the purpose IP address, so that the target base VTEP equipment is carried out in this website for the destination IP address
ARP request message flooding, and after receiving the arp reply message for the destination IP address, the target base VTEP
The corresponding ARP entry of the arp reply message is synchronized to neighbours' VTEP equipment by equipment；
Wherein, the target base VTEP equipment be the first VTEP equipment neighbours' VTEP equipment in the first VTEP
The identical neighbours VTEP equipment of gateway virtual interface IP address of equipment.
7. device according to claim 6, which is characterized in that described device further include:
Preferred cell, the routing that neighbours' VTEP equipment for receiving the first VTEP equipment when the receiving unit is sent
Synchronization message, and when determining that there are purpose IP address is identical, next-hop is different routing iinformation, to the destination IP address phase
It is preferred that the routing iinformation same, next-hop is different carries out next-hop；
Second transmission unit is also used to for being sent to preferably the device address next hop neighbor VTEP of not preferred routing iinformation
Next hop neighbor VTEP equipment of routing iinformation, so that next hop neighbor VTEP equipment of the preferred routing iinformation will be described non-optimum
Select the address information recording of next hop neighbor VTEP equipment of routing iinformation for the address information of target base VTEP equipment.
8. device according to claim 7, which is characterized in that
Second transmission unit is also used to detect that virtual machine VM is online when described device, and the receiving unit is not the
When receiving the gratuitous ARP packet of VM transmission in two preset times, neighbours' VTEP equipment of the first VTEP equipment of Xiang Suoshu is same
Walk the routing iinformation that purpose IP address is gateway virtual interface IP address；
The receiving unit is also used to receive the not preferred routing iinformation that neighbours' VTEP equipment of the first VTEP equipment is sent
Next hop neighbor VTEP equipment address information；
Described device further include:
Recording unit, for being target by the address information recording of next hop neighbor VTEP equipment of the not preferred routing iinformation
The address information of neighbours' VTEP equipment.
9. device according to claim 6, which is characterized in that
Second transmission unit is also used to carry newly-increased type lengths values TLV to target base VTEP equipment transmission
The Border Gateway Protocol (BGP) protocol massages of field carry the destination IP address in the newly-increased TLV field, so that described
Target base VTEP equipment determines in the bgp protocol message received there are when the newly-increased TLV field, carries out in this website
For the ARP request message flooding of the purpose IP address carried in the newly-increased TLV field.
10. device according to claim 9, which is characterized in that
First transmission unit is also used to receive the bgp protocol for carrying the newly-increased TLV field when the receiving unit
When message, the ARP request message flooding for the purpose IP address carried in the newly-increased TLV field is carried out in this website.
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| CN108023832A (en) * | 2016-10-31 | 2018-05-11 | 中兴通讯股份有限公司 | Method for sending information, apparatus and system |
| CN106878288B (en) * | 2017-01-20 | 2019-12-06 | 新华三技术有限公司 | message forwarding method and device |
| CN112929273A (en) * | 2017-03-14 | 2021-06-08 | 华为技术有限公司 | Method, equipment and system for processing route |
| CN107342941B (en) * | 2017-06-01 | 2019-11-12 | 杭州迪普科技股份有限公司 | A kind of optimization method and device of VXLAN control plane |
| CN108259302B (en) * | 2017-10-31 | 2021-04-27 | 新华三技术有限公司 | Method and device for realizing centralized gateway networking |
| CN107948041B (en) * | 2017-11-22 | 2020-12-18 | 锐捷网络股份有限公司 | Method and equipment for constructing VXLAN centralized multi-active gateway |
| CN108199946B (en) * | 2017-12-29 | 2020-08-14 | 新华三技术有限公司 | Data forwarding method and communication system |
| CN109189856B (en) * | 2018-08-15 | 2021-09-28 | 中国联合网络通信集团有限公司 | Distributed database service management method, device, server and storage medium |
| US11349749B2 (en) | 2018-10-17 | 2022-05-31 | Juniper Networks, Inc. | Node protection for bum traffic for multi-homed node failure |
| CN111064659B (en) * | 2018-10-17 | 2022-07-19 | 瞻博网络公司 | Node protection of BUM traffic for multi-homed node failures |
| CN109286565B (en) * | 2018-11-15 | 2019-09-06 | 北京华三通信技术有限公司 | Message forwarding method and device |
| CN112702263B (en) * | 2019-10-22 | 2023-12-19 | 华为技术有限公司 | Method and device for forwarding message |
| CN112866119B (en) * | 2020-12-30 | 2022-04-08 | 迈普通信技术股份有限公司 | Virtual extensible local area network communication method and device, electronic equipment and storage medium |
| CN114070790B (en) * | 2021-11-15 | 2023-09-26 | 中国联合网络通信集团有限公司 | Information forwarding method, PE, system, equipment and medium in VPLS equipment |
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