CN105791457A - Data processing method and apparatus - Google Patents
Data processing method and apparatus Download PDFInfo
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- CN105791457A CN105791457A CN201610107880.1A CN201610107880A CN105791457A CN 105791457 A CN105791457 A CN 105791457A CN 201610107880 A CN201610107880 A CN 201610107880A CN 105791457 A CN105791457 A CN 105791457A
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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 invention provides a data processing method and apparatus. The method comprises the following steps: when a first VTEP device receives flow forwarded by a neighbor VTEP device and an ARP table entry corresponding to a destination IP address of the flow is not queried, carrying out ARP request message flooding on the destination IP address in the station; and if the first VTEP device does not receive an ARP response message of the destination IP address within a first preset time, sending an ARP flooding indication message to a destination neighbor VTEP device, so that the destination neighbor VTEP device carries out the ARP request message flooding on the destination IP address in the station, wherein the ARP flooding indication message carries the destination IP address, and after the ARP response message of the destination IP address is received, the destination neighbor VTEP device synchronizes the ARP table entry corresponding to the ARP response message to the neighbor VTEP device. By adopting the data processing method and apparatus provided by the embodiment of the invention, the ARP message flooding in an IP backbone network can be reduced.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to a kind of data processing method and device.
Background technology
nullEVPN(EthernetVirtualPrivateNetwork，Ether VPN (virtual private network)) network and BGP (BorderGatewayProtocol，Border Gateway Protocol)/MPLS (Multi-ProtocolLabelSwitching，Multiprotocol label switching) IP (InternetProtocol，Internet protocol) network structure of VPN is similar，In order to realize the intercommunication between each website (Site)，PE (the ProviderEdge that operator backbone is online，Service provider network edge) equipment is set up EVPN example and accessed the CE (CustomerEdge of each website，Customer network edge) equipment，Set up neighborhood and MPLSLSP tunnel between each PE simultaneously.
In EVPN network; as VM (VirtualMachine; virtual machine) (CE in EVPN network) when reaching the standard grade; would generally to VTEP (VXLAN (virtualExtensibleLocalAreaNetwork; virtual expansible LAN) TunnelEndPoint; VXLAN tunneling termination) equipment (PE in EVPN network) sends gratuitous ARP (AddressResolutionProtocol, address resolution protocol) message.MAC address entries and ARP, after MAC (MediaAccessControl, the media interviews control) list item and ARP of local terminal, are synchronized to EVPNBGP neighbours by bgp protocol by VTEP learning equipment.
But, EVPN network there is also one and mourn in silence VM, the feature of this VM is: when reaching the standard grade, and will not actively send gratuitous ARP packet.Thus, VTEP cannot learn the ARP to the VM that mourns in silence, and also just cannot be synchronized to opposite end VTEP equipment, cause that the flow between VM cannot forward.
Summary of the invention
The present invention provides a kind of data processing method and device, with ARP message flooding in IP backbone, the problem affecting the business of IP backbone network under the VM scene that solves to mourn in silence.
First aspect according to embodiments of the present invention, it is provided that a kind of data processing method, is applied to the VTEP equipment in EVPN network, and described method includes:
When a described VTEP equipment receives the flow of the neighbours' VTEP device forwards of self, and during ARP list item corresponding to the purpose IP address that do not inquire described flow, carry out flooding for the ARP request message of described purpose IP address in this website；
If a described VTEP equipment does not receive the arp reply message for described purpose IP address in the first Preset Time, then send ARP flooding instruction message to target base VTEP equipment, described ARP flooding instruction message carries described purpose IP address, so that described target base VTEP equipment carries out flooding for the ARP request message of described purpose IP address in this website, and after receiving the arp reply message for described purpose IP address, ARP corresponding for described arp reply message is synchronized to neighbours' VTEP equipment of described target base VTEP equipment by described target base VTEP equipment.
Second aspect according to embodiments of the present invention, it is provided that a kind of data processing equipment, is applied to the VTEP equipment in EVPN network, and described device includes:
Receive unit, for receiving the flow of neighbours' VTEP device forwards of a described VTEP equipment；
First transmitting element, for when described device does not inquire ARP list item corresponding to the purpose IP address of described flow, carrying out flooding for the ARP request message of described purpose IP address in this website；
Second transmitting element, if do not receive the arp reply message for described purpose IP address in the first Preset Time for described reception unit, then send ARP flooding instruction message to target base VTEP equipment, described ARP flooding instruction message carries described purpose IP address, so that described target base VTEP equipment carries out flooding for the ARP request message of described purpose IP address in this website, and after receiving the arp reply message for described purpose IP address, ARP corresponding for described arp reply message is synchronized to neighbours' VTEP equipment by described target base VTEP equipment.
The application embodiment of the present invention, when the flow receiving neighbours' VTEP device forwards, and during ARP corresponding to the purpose IP address that do not inquire this flow, carries out flooding for the ARP request message of this purpose IP address in this website；nullIf not receiving the arp reply message for this purpose IP address in Preset Time，Then send ARP flooding instruction message to target base VTEP equipment，This ARP flooding instruction message carries described purpose IP address，So that this target base VTEP equipment carries out flooding for the ARP request message of this purpose IP address in this website，And receiving after for the arp reply message of this purpose IP address，ARP corresponding for this arp reply message is synchronized to neighbours' VTEP equipment，Namely when receiving the flow that destination is not main frame in this website，The purpose IP address of flow is sent to the target base VTEP equipment identical with self gateway virtual interface IP address and carries out corresponding ARP request message flooding，With in prior art，Compare in the implementation receiving the ARP request message flooding directly carrying out correspondence when destination is not the flow of main frame in this website in VXLAN L 2 broadcast territory，Decrease the flooding of ARP message in IP backbone.
Accompanying drawing explanation
Fig. 1 is a kind of EVPN network of network configuration diagram；
Fig. 2 is the schematic flow sheet of a kind of data processing method that the embodiment of the present invention provides；
Fig. 3 is the configuration diagram of a kind of concrete application scenarios that the embodiment of the present invention provides；
Fig. 4 is the structural representation of a kind of data processing equipment that the embodiment of the present invention provides；
Fig. 5 is the structural representation of the another kind of data processing equipment that the embodiment of the present invention provides；
Fig. 6 is the structural representation of the another kind of data processing equipment that the embodiment of the present invention provides.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in the embodiment of the present invention, and it is understandable to enable the above-mentioned purpose of the embodiment of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, technical scheme in the embodiment of the present invention is described in further detail.
Reach the standard grade when VTEP equipment (being assumed to be VTEP1) perceives VM (being assumed to be VM1), but when not receiving gratuitous ARP packet in Preset Time (VM1 is the VM that mourns in silence), the Host routes of GW (Gateway, gateway) virtual interface and MAC Address can be synchronized to all opposite ends VTEP equipment (such as VTEP2 and VTEP3 etc.) as EVPNBGP neighbours by VTEP1；Opposite end VTEP equipment generates corresponding APR list item after receiving Host routes and the MAC Address of the VTEP1 GW virtual interface synchronized；When the VM2 under VTEP2 desires access to VM1, flow is after VTEP2, and VTEP2 inquires about corresponding Host routes and ARP, can hit the VTEP1 list item information synchronized, thus, forward the traffic to VTEP1.After VTEP1 receives this flow, actively send ARP request message, the ARP information of request VM1 according to the purpose IP address of flow, then flow is transmitted to VM1.
nullBut practice finds，In EVPN network，May there is multiple VTEP equipment and there is identical GW virtual interface IP address，For the network architecture shown in Fig. 1，Assume that VTEP2 and VTEP3 equipment is all the GW equipment of same VXLAN business，They external gateway virtual interface IP addresses are all 11.1.1.1/24，Then when VM3 and VM4 the two mourn in silence VM reach the standard grade simultaneously time，VTEP2 and VTEP3 can synchronize the routing iinformation of 11.1.1.1/24 to VTEP1，BGP is for this Host routes of 11.1.1.1/24，The preferred motion of down hop can be done，If preferential down hop result is directed to VTEP3，The down hop that the forwarding-table item so synchronized on VTEP1 comes into force is VTEP3 equipment.
Now, if VM1 is to VM3 transmitted traffic, flow can be introduced on VTEP3, after flow reaches VTEP3, VTEP3 actively initiates ARP request to the VM of local terminal according to the purpose IP address 11.1.1.2 of flow, and when VTEP3 does not receive the ARP message of VM3 in Preset Time, the ARP request message for 11.1.1.2 can be carried out flooding broadcast by VTEP3 in VXLAN L 2 broadcast territory, result in ARP message flooding in IP backbone, affect the business of IP backbone network.
Referring to the schematic flow sheet of a kind of data processing method that Fig. 2, Fig. 2 provide for the embodiment of the present invention, the method can apply to the VTEP equipment in EVPN network, as in figure 2 it is shown, the method may comprise steps of:
Step 201, receive the flow of the neighbours' VTEP device forwards of self when a VTEP equipment, and during ARP corresponding to the purpose IP address that do not inquire this flow, carry out flooding for the ARP request message of this purpose IP address in this website.
In the embodiment of the present invention, a VTEP equipment does not refer in particular to a certain fixing VTEP equipment, but may refer to the arbitrary VTEP equipment in EVPN network, and the embodiment of the present invention is follow-up no longer to be repeated.
In the embodiment of the present invention, when a VTEP equipment receives the flow that self neighbours' VTEP equipment (EVPNBGP neighbours) forward, oneth VTEP equipment can obtain the purpose IP address of this flow, and the ARP according to this purpose IP address lookup self storage, to determine whether there is the ARP corresponding with this purpose IP address.
If a VTEP equipment does not inquire the ARP of correspondence according to the purpose IP address of the flow received, oneth VTEP equipment can carry out flooding for the ARP request message of this purpose IP address in this website, namely the ARP request for this purpose IP address is broadcasted to the VM being connected with self, with the ARP information that this purpose IP address of acquisition request is corresponding.
If step 202 the oneth VTEP equipment does not receive the arp reply message for this purpose IP address in the first Preset Time, then send ARP flooding instruction message to target base VTEP equipment, this ARP flooding instruction message carries this purpose IP address, so that target base VTEP equipment carries out flooding for the ARP request message of this purpose IP address in this website, and receiving after for the arp reply message of this purpose IP address, ARP corresponding for this arp reply message is synchronized to neighbours' VTEP equipment of target base VTEP equipment.
In the embodiment of the present invention, oneth VTEP equipment carries out for after the ARP request message flooding of purpose IP address in this website, after VM in this website receives this ARP request message, mate this purpose IP address and the IP address of self of carrying in this ARP request message, if the two is identical, then VM returns corresponding arp reply message to a VTEP equipment；Otherwise, VM will not return corresponding arp reply message to a VTEP equipment.
If a VTEP equipment carries out flooding for the ARP request message of purpose IP address in this website, and not in Preset Time (the first Preset Time, can pre-set according to concrete application scenarios) receive the arp reply message for this purpose IP address, the destination then showing this flow is not the VM in this website, and now a VTEP equipment can send ARP flooding instruction message to target base VTEP equipment.
What deserves to be explained is, in embodiments of the present invention, target base VTEP equipment is often referred to the part VTEP equipment in neighbours' VTEP equipment of a VTEP equipment, such as the neighbours VTEP equipment identical with the gateway virtual interface IP address of a VTEP equipment self, or it is divided in advance and neighbours' VTEP equipment etc. that a VTEP equipment is same packet.
Preferably, target base VTEP equipment is neighbours' VTEP equipment identical with the gateway virtual interface IP address of a VTEP equipment in neighbours' VTEP equipment of a VTEP equipment, also illustrates as example herein.
nullIn embodiments of the present invention，Consider when in website exist mourn in silence VM time，VTEP equipment can route to the neighbours' VTEP equipment master synchronization of self，The gateway virtual interface IP address that IP address is VTEP equipment in this Host routes，And the VTEP equipment identical owing to may there is multiple gateway virtual interface IP address in EVPN network，When the VM that all mourns in silence under the VTEP equipment that the plurality of gateway virtual interface IP address is identical reaches the standard grade，It is identical that VTEP equipment may receive multiple purpose IP address、But the routing iinformation that down hop is different，Now to carry out down hop preferential for VTEP equipment，May result in the flow of VM under some the VTEP equipment being sent in the VTEP equipment that the plurality of gateway virtual interface IP address is identical，It is forwarded other VTEP equipment given in the VTEP equipment that the plurality of gateway virtual interface IP address is identical.
Therefore, in embodiments of the present invention, when a VTEP equipment receives the flow of the neighbours' VTEP device forwards of self, and determine when the destination of this flow is not the VM in this website, the ARP request message of the purpose IP address for this flow can't directly be flooded by the oneth VTEP equipment in VXLAN L 2 broadcast territory, but first this purpose IP address can be carried and be sent to target base VTEP equipment (preferably, this target base VTEP equipment is the neighbours VTEP equipment identical with self gateway virtual interface IP address) in ARP flooding instruction message；Wherein, ARP flooding instruction message is for indicating the VTEP equipment receiving this message to broadcast the ARP request message for the above-mentioned purpose IP address carried in this message in website.
After target base VTEP equipment receives the ARP flooding instruction message that a VTEP equipment sends, it is possible to carry out flooding for the ARP request message of this purpose IP address in this website, namely broadcast the ARP request message for this purpose IP address to the VM in this website.When target base VTEP equipment receives the arp reply message for this purpose IP address, this target base VTEP equipment can generate the ARP that this purpose IP address is corresponding, and this ARP is synchronized to neighbours' VTEP equipment (neighbours' VTEP equipment of target base VTEP equipment), thus, neighbours' VTEP equipment of this target base VTEP equipment can determine the forward-path of above-mentioned flow according to this ARP, thus when realizing flow and correctly forwarding, decreasing the flooding of ARP message in backbone IP network.
Wherein, if a VTEP equipment floods to target base VTEP equipment transmission ARP after indicating message, in Preset Time, do not receive the ARP that target base VTEP equipment synchronizes, then think that this purpose IP address neither the IP address of main frame in target base VTEP equipment sites, now, oneth VTEP equipment can be made directly ARP request flooding according to existing realization, or processes according to other strategy, and this is not limited by the embodiment of the present invention.
In the embodiment of the present invention, to achieve these goals, when target base VTEP equipment is the neighbours VTEP equipment identical with a VTEP equipment self gateway virtual interface IP address, it is necessary to make the VTEP equipment in EVPN network determine whether there is neighbours' VTEP equipment that gateway virtual interface IP address is identical with the gateway virtual interface IP address of self.
In the optional embodiment of one, the address information of the neighbours VTEP equipment identical with self gateway virtual interface IP address can be configured in VTEP equipment by the mode of static configuration and (namely between VTEP equipment, set up the address of EVPNBGP neighbours, hereinafter no longer repeat), thus, when VTEP equipment receives the neighbours VTEP flow forwarded, and determine when the destination of this flow is not the VM in this website, it is possible to according to this address information, purpose IP address is transmitted to the neighbours VTEP equipment identical with self gateway virtual interface IP address.
Such as, operation maintenance personnel can after the network architecture have been built, configuration information according to VTEP equipment, such as gateway virtual interface IP address information, determine the VTEP equipment that the gateway virtual interface IP address existed in network is identical, and issuing configuration file to each VTEP equipment, in this configuration file, record has the address information of the neighbours VTEP equipment identical with the gateway virtual interface IP address of VTEP equipment self.
In the optional embodiment of another kind, the address information of the neighbours VTEP equipment identical with self gateway virtual interface IP address, it is possible to obtain in the following manner:
nullWhen receiving the route synchronization message that neighbours' VTEP equipment sends，And determine that to there is purpose IP address identical、During the different routing iinformation of down hop，This purpose IP address is identical、It is preferential that the routing iinformation that down hop is different carries out down hop，And the down hop neighbours VTEP device address of not preferred routing iinformation is sent to down hop neighbours' VTEP equipment of preferred routing iinformation，Such as，The address information of down hop neighbours' VTEP equipment of this not preferred routing iinformation is carried in BGPupdate (renewal) message or other newly-increased protocol massages，It is sent to down hop neighbours' VTEP equipment of preferred routing iinformation，So that down hop neighbours' VTEP equipment of this preferred routing iinformation is by the address information that address information recording is target base VTEP equipment of down hop neighbours' VTEP equipment of not preferred routing iinformation，The address information that address information recording is target base VTEP equipment by the gateway virtual interface IP address neighbours VTEP equipment identical with self gateway virtual interface IP address，Such as，By this address information with the form record of list item at the memory space specified.
nullIn this embodiment，When a VTEP equipment receives the route synchronization message of neighbours' VTEP equipment transmission of self，Oneth VTEP equipment can according to the purpose IP address of the routing iinformation carried in this route synchronization message and next hop information，It is identical with the purpose IP address of this routing iinformation whether inquiry exists purpose IP address，But the routing iinformation that down hop is different，If existing，Then a VTEP equipment needs to carry out preferred (its concrete preference policy embodiment of the present invention does not limit) of down hop，And the down hop neighbours VTEP device address of not preferred routing iinformation is sent to down hop neighbours' VTEP equipment of preferred routing iinformation，So that down hop neighbours' VTEP equipment of this preferred routing iinformation is by the address information that address information recording is target base VTEP equipment of neighbours' VTEP equipment identical with the gateway virtual interface IP address of self for gateway virtual interface IP address.
For example, assume VTEP1, VTEP2 and VTEP3 neighbours VTEP equipment each other, and the gateway virtual interface IP address identical (assuming to be 11.1.1.1/24) of VTEP2 and VTEP3, when the VM that mourns in silence under VTEP2 and VTEP3 reaches the standard grade simultaneously, VTEP2 and VTEP3 can synchronize the routing iinformation of 11.1.1.1/24 to VTEP1；After VTEP1 receives these two routing iinformations, need that these two routes are carried out down hop preferred, assume that preferred down hop result points to VTEP3, then the address information of VTEP2 can be sent to VTEP3 by BGPupdate message by VTEP1, so that VTEP3 knows that the gateway virtual interface IP address of VTEP2 is identical with the gateway virtual interface IP address of self；When VTEP3 receives the neighbours VTEP flow forwarded, and determine when the destination of flow is not the VM in this website, the purpose IP address of this flow can be sent to VTEP2 by VTEP3, in this website, the ARP request message flooding of this purpose IP address is carried out by VTEP2, and after study to corresponding ARP, carry out the synchronization of this ARP.
Correspondingly, in embodiments of the present invention, when a VTEP equipment Inspection is reached the standard grade to VM, and when not receiving this VM gratuitous ARP packet sent in the second Preset Time, a VTEP equipment can synchronize, to the neighbours' VTEP equipment of self, the routing iinformation that purpose IP address is gateway virtual interface IP address；And then, oneth VTEP equipment can receive the address information (i.e. the address information of neighbours' VTEP equipment that gateway virtual interface IP address is identical with self gateway virtual interface IP address) of down hop neighbours' VTEP equipment of the not preferred routing iinformation of the neighbours' VTEP equipment transmission of self, and by the address information that address information recording is target base VTEP equipment of down hop neighbours' VTEP equipment of this not preferred routing iinformation；Wherein, this address information is to receive neighbours' VTEP equipment of the routing iinformation that above-mentioned purpose IP address is gateway virtual interface IP address, determining that to there is purpose IP address identical with this gateway virtual interface IP address, but the routing iinformation that down hop is different, and using routing iinformation that the above-mentioned purpose IP address received is gateway virtual interface IP address as preferred routing iinformation time send.
For example, assume VTEP1, VTEP2 and VTEP3 neighbours VTEP equipment each other, when VTEP1 detects that VM reaches the standard grade, and when not receiving this VM gratuitous ARP packet sent in the second Preset Time, VTEP1 can synchronize, to VTEP2 and VTEP3, the routing iinformation (down hop is the address of VTEP1) that purpose IP address is gateway virtual interface IP address (being assumed to be 11.1.1.1)；After assuming that VTEP2 receives this routing iinformation, find that existence is identical with this routing iinformation purpose IP address, but down hop different from this routing iinformation (assuming the address that down hop is VTEP3), if this routing iinformation is defined as preferred route by VTEP2, be defined as the preferred down hop of this route by VTEP1, then the address information of VTEP3 can be sent to VTEP1 by VTEP2；After VTEP1 receives the address information of VTEP3, it may be determined that the gateway virtual interface IP address of VTEP3 identical with the gateway virtual interface IP address of self (namely VTEP3 is the target base VTEP equipment of VTEP1), and record the address information of VTEP3.
As the optional embodiment of one, in above-mentioned steps 202, oneth VTEP equipment sends ARP flooding instruction message to target base VTEP equipment, ARP flooding instruction message carries this purpose IP address, so that target base VTEP equipment carries out the ARP request message flooding of this purpose IP address in this website, it is possible to including:
Oneth VTEP equipment sends to this target base VTEP equipment and carries newly-increased TLV (Type, Length, Value, type lengths values) the bgp protocol message of field, this newly-increased TLV field carries this purpose IP address, so that this target base VTEP equipment is determined when there is this newly-increased TLV field in the bgp protocol message received, carry out flooding for the ARP request message of the purpose IP address carried in this newly-increased TLV field in this website.
In this embodiment, can by the bgp protocol message between neighbours' VTEP equipment be extended, bgp protocol message increases a TLV field, this TLV field is for carrying the purpose IP address of above-mentioned flow, thus, when a VTEP equipment receives the flow of neighbours' VTEP device forwards, and determine when the destination of this flow is not the VM in this website, oneth VTEP equipment can to target base VTEP equipment (preferably, this target base VTEP equipment is neighbours' VTEP equipment that gateway virtual interface IP address is identical with the gateway virtual interface IP address of a VTEP equipment) send the bgp protocol message carrying newly-increased TLV field, this bgp protocol message carries the purpose IP address of above-mentioned flow；Target base VTEP equipment receives this bgp protocol message, and determines when carrying above-mentioned newly-increased TLV field in this bgp protocol message, it is possible to carry out flooding for the ARP request message of the purpose IP address carried in this newly-increased TLV field in this website.
Correspondingly, in embodiments of the present invention, when a VTEP equipment receives the bgp protocol message carrying above-mentioned newly-increased TLV field of neighbours' VTEP equipment transmission of self, it is possible to carry out flooding for the ARP request message of the purpose IP address carried in this newly-increased TLV field in this website.
nullVisible，In the method flow described by Fig. 2，By at the flow receiving neighbours' VTEP device forwards，And determine when the destination of this flow is not the VM in this website，ARP flooding instruction message is sent to target base VTEP equipment，This ARP flooding instruction message carries the purpose IP address of this flow，Carried out flooding for the ARP request message of this purpose IP address in this website by this target base VTEP equipment，And receiving after for the arp reply message of this purpose IP address，ARP corresponding for this arp reply message is synchronized to neighbours' VTEP equipment，With in prior art，As the VM that the destination determining flow is not in this website，The realization of the ARP request message flooding directly carrying out this purpose IP address in VXLAN L 2 broadcast territory is compared，Decrease the flooding of ARP message in IP backbone.
In order to make those skilled in the art be more fully understood that the technical scheme that the embodiment of the present invention provides, the technical scheme embodiment of the present invention provided below in conjunction with concrete application scenarios illustrates.
Referring to the configuration diagram of a kind of concrete application scenarios that Fig. 3, Fig. 3 provide for the embodiment of the present invention, wherein, VTEP1, VTEP2 and VTEP3 be neighbours VTEP equipment each other, and the gateway virtual interface IP address of VTEP1 is 12.1.1.1；The gateway virtual interface IP address of VTEP2 and VTEP3 is 11.1.1.1；VM1 and VM2 is the main frame in VTEP1 website, and VM3 is main frame in VTEP2 website, and VM4 and VM5 is main frame in VTEP3 website, and VM3 and VM4 is the VM that mourns in silence.
Based on this application scenarios, being accomplished by of the data processing scheme that the embodiment of the present invention provides
1, when VM3 and VM4 reaches the standard grade, owing to VM3 and VM4 is the VM that mourns in silence, therefore, VM3 (VM4) will not send gratuitous ARP packet to VTEP2 (VTEP3)；
2, VTEP2 (VTEP3) perceives VM3 (VM4) by direct connected link UP and reaches the standard grade, but does not receive the gratuitous ARP packet of VM3 (VM4) in Preset Time, then all synchronized to VTEP1 by the 24 of GW Host routes；
null3、After VTEP1 receives the MAC/IP route synchronization message of this down hop respectively VTEP2 and VTEP3，Carry out the preferred operations of BGP route，Assume in the forwarding-table item finally obtained，The down hop of hit 11.1.1.1/24 Host routes is the VXLAN tunnel to VTEP3，Then，VTEP1 can send bgp protocol message to VTEP3，Such as BGPupdate message，The next hop address (i.e. VTEP2 set up address during EVPNBGP neighbours with VTEP1 and VTEP3) of the bgp session of the MAC/IP route of the VTEP2 the received 11.1.1.1/24 sent is sent to VTEP3，VTEP3 is after receiving this bgp protocol message，In locally created neighbours' VTEP list item for 11.1.1.1/24 route (i.e. the address information of neighbours' VTEP equipment that record gateway virtual interface IP address is identical with self gateway virtual interface IP address)；
4, VM1 needs to 11.1.1.2 converting flow, and after flow arrives VTEP1, VTEP1 inquires about forwarding-table item, and down hop destination address is the VXLAN tunnel of VTEP3, thus, flow is carried out VXLAN encapsulation, forwards to VTEP3；
5, after VTEP3 receives this flow, carry out VXLAN decapsulation operation, obtain original IP message, purpose IP address is 11.1.1.2, VTEP3 inquires about the machine route, finding the ARP not having 11.1.1.2, VTEP3 equipment carries out flooding for the ARP request message of 11.1.1.2 in this website, namely sends ARP request message to VM4 and VM5；
If 6 VTEP3 do not receive the arp reply message for 11.1.1.2 in Preset Time, according to the address information of the gateway virtual interface IP address neighbours VTEP equipment identical with self gateway virtual interface IP address of record in step 3, send the bgp protocol message carrying newly-increased TLV field to corresponding VTEP equipment (i.e. VTEP2), this new field includes purpose IP address 11.1.1.2；
7, after VTEP2 receives this bgp protocol message, find this bgp protocol message carries newly-increased TLV, then resolve and obtain the purpose IP address 11.1.1.2 carried in this TCL, and carry out flooding for the ARP request message of this purpose IP address in this website, namely send the ARP request message for 11.1.1.2 to VM3；
8, after VTEP2 receives the VM3 arp reply message sent, the ARP that 11.1.1.2 (i.e. the IP address of VM3) is corresponding has been arrived in study, by MAC/IP route synchronization to neighbours VTEP equipment (VTEP1 and VTEP3), thus the flow that VM1 is sent to 11.1.1.2 arrives after VTEP1, VTEP1 can be forwarded value VTEP2, VTEP2 be sent to VM3.
Be can be seen that by above description, in the technical scheme that the embodiment of the present invention provides, when the flow receiving neighbours' VTEP device forwards, and during ARP corresponding to the purpose IP address that do not inquire this flow, carry out flooding for the ARP request message of this purpose IP address in this website；nullIf not receiving the arp reply message for this purpose IP address in Preset Time，Then send ARP flooding instruction message to target base VTEP equipment，This ARP flooding instruction message carries this purpose IP address，So that this target base VTEP equipment carries out flooding for the ARP request message of this purpose IP address in this website，And receiving after for the arp reply message of this purpose IP address，ARP corresponding for this arp reply message is synchronized to neighbours' VTEP equipment，Namely when receiving the flow that destination is not main frame in this website，The purpose IP address of flow is sent to the target base VTEP equipment identical with self gateway virtual interface IP address and carries out corresponding ARP request message flooding，With in prior art，Compare in the implementation receiving the ARP request message flooding directly carrying out correspondence when destination is not the flow of main frame in this website in VXLAN L 2 broadcast territory，Decrease the flooding of ARP message in IP backbone.
Referring to Fig. 4, for the structural representation of a kind of data processing equipment that the embodiment of the present invention provides, wherein, this data processing equipment can apply to the VTEP equipment in above-mentioned EVPN network, and as shown in Figure 4, this data processing equipment may include that
Receive unit 410, for receiving the flow of neighbours' VTEP device forwards of a described VTEP equipment；
First transmitting element 420, for when described device does not inquire ARP list item corresponding to the purpose IP address of described flow, carrying out flooding for the ARP request message of described purpose IP address in this website；
Second transmitting element 430, if do not receive the arp reply message for described purpose IP address in the first Preset Time for described reception unit 410, then send ARP flooding instruction message to target base VTEP equipment, described ARP flooding instruction message carries described purpose IP address, so that described target base VTEP equipment carries out flooding for the ARP request message of described purpose IP address in this website, and after receiving the arp reply message for described purpose IP address, ARP corresponding for described arp reply message is synchronized to neighbours' VTEP equipment by described target base VTEP equipment.
In an alternative embodiment, described target base VTEP equipment is neighbours' VTEP equipment identical with the gateway virtual interface IP address of a described VTEP equipment in neighbours' VTEP equipment of a described VTEP equipment.
Seeing also the structural representation of the another kind of data processing equipment that Fig. 5, Fig. 5 provide for the embodiment of the present invention, on the basis of the embodiment shown in Fig. 4, the data processing equipment shown in Fig. 5 may include that
Preferred cell 440, the route synchronization message that neighbours' VTEP equipment for receiving a described VTEP equipment when described reception unit 410 sends, and determine when there is purpose IP address is identical, down hop is different routing iinformation, the described routing iinformation that purpose IP address is identical, down hop is different is carried out down hop preferred；
Correspondingly, described second transmitting element 430, can be also used for being sent to the down hop neighbours VTEP device address of not preferred routing iinformation down hop neighbours' VTEP equipment of preferred routing iinformation, so that down hop neighbours' VTEP equipment of this preferred routing iinformation is by the address information that address information recording is target base VTEP equipment of down hop neighbours' VTEP equipment of described not preferred routing iinformation.
In an alternative embodiment, described second transmitting element 430, can be also used for working as described device and detect that virtual machine VM reaches the standard grade, and described reception unit when not receiving this VM gratuitous ARP packet sent in the second Preset Time, synchronize, to neighbours' VTEP equipment of a described VTEP equipment, the routing iinformation that purpose IP address is gateway virtual interface IP address；
Described reception unit 410, it is also possible to the address information of down hop neighbours' VTEP equipment of the not preferred routing iinformation that the neighbours' VTEP equipment for receiving a described VTEP equipment sends；
Correspondingly, seeing also the structural representation of the another kind of data processing equipment that Fig. 6, Fig. 6 provide for the embodiment of the present invention, on the basis of the embodiment shown in Fig. 4, the data processing equipment shown in Fig. 6 may include that
Record unit 450, for the address information that address information recording is target base VTEP equipment by down hop neighbours' VTEP equipment of described not preferred routing iinformation.
In an alternative embodiment, described second transmitting element 430, can be also used for sending, to described target base VTEP equipment, the Border Gateway Protocol (BGP) protocol massages carrying newly-increased type lengths values TLV field, described newly-increased TLV field carries described purpose IP address, so that described target base VTEP equipment is determined when there is described newly-increased TLV field in the bgp protocol message received, carry out flooding for the ARP request message of the purpose IP address carried in described newly-increased TLV field in this website.
In an alternative embodiment, described first transmitting element 420, can be also used for when described reception unit receives the bgp protocol message carrying described newly-increased TLV field, carry out flooding for the ARP request message of the purpose IP address carried in described newly-increased TLV field in this website.
What in said apparatus, the function of unit and the process that realizes of effect specifically referred in said method corresponding step realizes process, does not repeat them here.
For device embodiment, owing to it corresponds essentially to embodiment of the method, so relevant part illustrates referring to the part of embodiment of the method.Device embodiment described above is merely schematic, the wherein said unit illustrated as separating component can be or may not be physically separate, the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of module therein can be selected according to the actual needs to realize the purpose of the present invention program.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
As seen from the above-described embodiment, when the flow receiving neighbours' VTEP device forwards, and during ARP corresponding to the purpose IP address that do not inquire this flow, carry out flooding for the ARP request message of this purpose IP address in this website；nullIf not receiving the arp reply message for this purpose IP address in Preset Time，Then send ARP flooding instruction message to target base VTEP equipment，This ARP flooding instruction message carries described purpose IP address，So that this target base VTEP equipment carries out flooding for the ARP request message of this purpose IP address in this website，And receiving after for the arp reply message of this purpose IP address，ARP corresponding for this arp reply message is synchronized to neighbours' VTEP equipment，Namely when receiving the flow that destination is not main frame in this website，The purpose IP address of flow is sent to the target base VTEP equipment identical with self gateway virtual interface IP address and carries out corresponding ARP request message flooding，With in prior art，Compare in the implementation receiving the ARP request message flooding directly carrying out correspondence when destination is not the flow of main frame in this website in VXLAN L 2 broadcast territory，Decrease the flooding of ARP message in IP backbone.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to other embodiment of the present invention.The application is intended to any modification of the present invention, purposes or adaptations, and these modification, purposes or adaptations are followed the general principle of the present invention and include the undocumented known general knowledge in the art of the present invention or conventional techniques means.Description and embodiments is considered only as exemplary, and the true scope of the present invention and spirit are pointed out by claim below.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and various amendment and change can carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (12)
1. a data processing method, the first virtual expansible LAN tunneling termination VTEP equipment being applied in ether VLAN EVPN network, it is characterised in that described method includes:
When a described VTEP equipment receives the flow of the neighbours' VTEP device forwards of self, and during ARP list item corresponding to the purpose IP address that do not inquire described flow, carry out flooding for the ARP request message of described purpose IP address in this website；
If a described VTEP equipment does not receive the arp reply message for described purpose IP address in the first Preset Time, then send ARP flooding instruction message to target base VTEP equipment, described ARP flooding instruction message carries described purpose IP address, so that described target base VTEP equipment carries out flooding for the ARP request message of described purpose IP address in this website, and after receiving the arp reply message for described purpose IP address, ARP corresponding for described arp reply message is synchronized to neighbours' VTEP equipment of described target base VTEP equipment by described target base VTEP equipment.
2. method according to claim 1, it is characterised in that described target base VTEP equipment is neighbours' VTEP equipment identical with the gateway virtual interface IP address of a described VTEP equipment in neighbours' VTEP equipment of a described VTEP equipment.
3. method according to claim 2, it is characterised in that described method also includes:
When a described VTEP equipment receives the route synchronization message that self neighbours' VTEP equipment sends, and determine that to there is purpose IP address identical, during the different routing iinformation of down hop, described purpose IP address is identical, it is preferred that the routing iinformation that down hop is different carries out down hop, and the down hop neighbours VTEP device address of not preferred routing iinformation is sent to down hop neighbours' VTEP equipment of preferred routing iinformation, so that down hop neighbours' VTEP equipment of this preferred routing iinformation is by the address information that address information recording is target base VTEP equipment of down hop neighbours' VTEP equipment of described not preferred routing iinformation.
4. method according to claim 2, it is characterised in that described method also includes:
When a described VTEP equipment Inspection is reached the standard grade to virtual machine VM, and when not receiving this VM gratuitous ARP packet sent in the second Preset Time, synchronize, to the neighbours' VTEP equipment of self, the routing iinformation that purpose IP address is gateway virtual interface IP address；
A described VTEP equipment receives the address information of down hop neighbours' VTEP equipment of the not preferred routing iinformation of the neighbours' VTEP equipment transmission of self, and by the address information that address information recording is target base VTEP equipment of down hop neighbours' VTEP equipment of described not preferred routing iinformation.
5. method according to claim 1, it is characterized in that, a described VTEP equipment sends ARP flooding instruction message to target base VTEP equipment, described ARP flooding instruction message carries described purpose IP address, so that described target base VTEP equipment carries out the ARP request message flooding of described purpose IP address in this website, including:
A described VTEP equipment sends the Border Gateway Protocol (BGP) protocol massages carrying newly-increased type lengths values TLV field to described target base VTEP equipment, described newly-increased TLV field carries described purpose IP address, so that described target base VTEP equipment is determined when there is described newly-increased TLV field in the bgp protocol message received, carry out flooding for the ARP request message of the purpose IP address carried in described newly-increased TLV field in this website.
6. method according to claim 5, it is characterised in that described method also includes:
When a described VTEP equipment receives the bgp protocol message carrying described newly-increased TLV field, carry out flooding for the ARP request message of the purpose IP address carried in described newly-increased TLV field in this website.
7. a data processing equipment, the first virtual expansible LAN tunneling termination VTEP equipment being applied in ether VLAN EVPN network, it is characterised in that described device includes:
Receive unit, for receiving the flow of neighbours' VTEP device forwards of a described VTEP equipment；
First transmitting element, for when described device does not inquire ARP list item corresponding to the purpose IP address of described flow, carrying out flooding for the ARP request message of described purpose IP address in this website；
Second transmitting element, if do not receive the arp reply message for described purpose IP address in the first Preset Time for described reception unit, then send ARP flooding instruction message to target base VTEP equipment, described ARP flooding instruction message carries described purpose IP address, so that described target base VTEP equipment carries out flooding for the ARP request message of described purpose IP address in this website, and after receiving the arp reply message for described purpose IP address, ARP corresponding for described arp reply message is synchronized to neighbours' VTEP equipment by described target base VTEP equipment.
8. device according to claim 7, it is characterised in that described target base VTEP equipment is neighbours' VTEP equipment identical with the gateway virtual interface IP address of a described VTEP equipment in neighbours' VTEP equipment of a described VTEP equipment.
9. device according to claim 8, it is characterised in that described device also includes:
Preferred cell, the route synchronization message that neighbours' VTEP equipment for receiving a described VTEP equipment when described reception unit sends, and determine when there is purpose IP address is identical, down hop is different routing iinformation, the described routing iinformation that purpose IP address is identical, down hop is different is carried out down hop preferred；
Described second transmitting element, it is additionally operable to be sent to the down hop neighbours VTEP device address of not preferred routing iinformation down hop neighbours' VTEP equipment of preferred routing iinformation, so that down hop neighbours' VTEP equipment of this preferred routing iinformation is by the address information that address information recording is target base VTEP equipment of down hop neighbours' VTEP equipment of described not preferred routing iinformation.
10. device according to claim 8, it is characterised in that
Described second transmitting element, it is additionally operable to work as described device and detects that virtual machine VM reaches the standard grade, and described reception unit when not receiving this VM gratuitous ARP packet sent in the second Preset Time, synchronize, to neighbours' VTEP equipment of a described VTEP equipment, the routing iinformation that purpose IP address is gateway virtual interface IP address；
Described reception unit, is additionally operable to receive the address information of down hop neighbours' VTEP equipment of the not preferred routing iinformation of neighbours' VTEP equipment transmission of a described VTEP equipment；
Described device also includes:
Record unit, for the address information that address information recording is target base VTEP equipment by down hop neighbours' VTEP equipment of described not preferred routing iinformation.
11. device according to claim 7, it is characterised in that
Described second transmitting element, it is additionally operable to send, to described target base VTEP equipment, the Border Gateway Protocol (BGP) protocol massages carrying newly-increased type lengths values TLV field, described newly-increased TLV field carries described purpose IP address, so that described target base VTEP equipment is determined when there is described newly-increased TLV field in the bgp protocol message received, carry out flooding for the ARP request message of the purpose IP address carried in described newly-increased TLV field in this website.
12. device according to claim 11, it is characterised in that
Described first transmitting element, is additionally operable to when described reception unit receives the bgp protocol message carrying described newly-increased TLV field, carries out flooding for the ARP request message of the purpose IP address carried in described newly-increased TLV field in this website.
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