CN109412925A - Forwarding-table item update method and VTEP based on VTEP - Google Patents
Forwarding-table item update method and VTEP based on VTEP Download PDFInfo
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- CN109412925A CN109412925A CN201811156568.7A CN201811156568A CN109412925A CN 109412925 A CN109412925 A CN 109412925A CN 201811156568 A CN201811156568 A CN 201811156568A CN 109412925 A CN109412925 A CN 109412925A
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- forwarding
- module
- table item
- notice
- delete
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
- H04L12/4675—Dynamic sharing of VLAN information amongst network nodes
Abstract
The invention discloses a kind of forwarding-table item update method and VTEP based on VTEP, this method comprises: after SS MAC module receives the Bridge module is sent first synchronous notice, the first forwarding-table item saved is updated according to the first forwarding-table item of the carrying distal marker for including in the first synchronous notice, and sends first to Bridge module and deletes notice；After Bridge module receives the first deletion notice, it is determined whether delete the first forwarding-table item for carrying and locally identifying, and send first to VXLAN PI module and delete notice；After VXLAN PI module receives the first deletion notice, it is determined whether delete the first forwarding-table item for carrying and locally identifying, and send first to BGP module and delete notice；After BGP module receives the first deletion notice, it is determined whether delete the first forwarding-table item for carrying and locally identifying, and send the second deletion notice to opposite end VTEP, second deletes the first forwarding-table item that notice includes carrying distal marker.The program may insure to timely update the forwarding-table items of modules in VTEP.
Description
Technical field
It is espespecially a kind of based on virtual expansible local area network tunneling termination (Virtual the present invention relates to field of communication technology
EXtensible Local Area Network Tunnel End Point, VTEP) forwarding-table item update method and VTEP.
Background technique
Virtual expansible local area network (Virtual eXtensible Local Area Network, VXLAN) is that one kind is built
Superposition (Overlay) network technology on Internet protocol (Internet Protocol, IP) network is found, matchmaker is used
Body access control (Media Access Control, MAC) is in (in) User Datagram Protocol (User Datagram
Protocol, UDP) method be packaged, i.e., common ether network packet is encapsulated in UDP message, common ether network packet
It is transmitted as UDP message.
It is as shown in Figure 1 the topological diagram of VXLAN network, including local network device is (such as in terminal (such as server), domain
The network equipment inside website (Site) A), VTEP and IP network.Wherein, VTEP is the edge device of VXLAN network, with physics
Network is connected, and is assigned the IP address of physical network, which is used for the encapsulation and decapsulation of VXLAN message, between VTEP
Tunnel is established on IP network, these tunnels realize the transmission service that VXLAN message passes through IP network.
Current data center is growing for the demand of server virtualization, by server virtualization technology, one
Server can support more mutually independent virtual machines.After server virtualization, it may be moved due to hardware resource or computer room
Reasons, the virtual machines such as transfer need to move on other VTEP.
In order to guarantee that business is not disrupted during virtual machine (vm) migration, it is desirable that the MAC Address of virtual machine, IP address are migrating
Front and back is constant.The forwarding-table item that the MAC Address and IP address saved in the VTEP equipment accessed before and after virtual machine (vm) migration is constituted
It updates.Usual VTEP includes Exchange Service (Switch Service, SS) MAC module, Bridge module, VXLN product independence
Property (Product Independence, PI) module and Border Gateway Protocol (Border Gateway Protocol, BGP) mould
Block, modules can all save corresponding forwarding-table item, and the update of virtual machine (vm) migration bring forwarding-table item can be related to these moulds
Block, during virtual machine (vm) migration, since Network Abnormal or congestion cause the certain module in VTEP timely
Forwarding-table item is updated, and then leads to packet loss and business forwarding exception occur.
Summary of the invention
The embodiment of the present invention provides a kind of forwarding-table item update method and VTEP based on VTEP, to solve the prior art
Present in during virtual machine (vm) migration, since Network Abnormal or congestion cause the certain module in VTEP can not
Timely update forwarding-table item, and then leads to packet loss and business forwarding exception occur.
According to embodiments of the present invention, a kind of forwarding-table item update method based on VTEP is provided, is applied in the VTEP,
The VTEP includes Exchange Service SS media access control MAC module, bridge Bridge module, virtual expansible local area network VXLAN
Product independence PI module and Border Gateway Protocol (BGP) module, which comprises
It is same according to described first after the SS MAC module receives the Bridge module is sent first synchronous notice
First forwarding-table item of the carryings distal marker for including in step notice updates first forwarding-table item of preservation, and to described
Bridge module sends first and deletes notice, and the first deletion notice includes carrying first forwarding table locally identified
?；
The Bridge module receive described first delete notice after, it is determined whether delete to carry and described locally identify
First forwarding-table item, and send described first to the VXLAN PI module and delete notice；
After the VXLAN PI module receives the first deletion notice, it is determined whether deletion carrying is described locally to be identified
First forwarding-table item, and to the BGP module send it is described first delete notice；
After the BGP module receives the first deletion notice, it is determined whether delete and carry the institute locally identified
The first forwarding-table item is stated, and sends second to opposite end VTEP and deletes notice, the second deletion notice includes carrying the distal end
First forwarding-table item of mark.
Specifically, the SS MAC module is according to the described first first turn for synchronizing the carrying distal marker for including in notice
Forwarding list item updates first forwarding-table item saved, specifically includes:
The SS MAC module determines whether to save first forwarding-table item for carrying and locally identifying, however, it is determined that preservation is taken
With first forwarding-table item locally identified, then the local mark is replaced with into the distal marker；
The Bridge module, the VXLAN PI module or the BGP module, which determine whether to delete, carries described
First forwarding-table item of ground mark, specifically includes:
The Bridge module, the VXLAN PI module or the BGP module, which determine whether to save, carries described
First forwarding-table item of ground mark, however, it is determined that save and carry first forwarding-table item locally identified, then delete
Carry first forwarding-table item locally identified.
Optionally, further includes:
After the BGP module receives the third deletion notice that the opposite end VTEP is sent, deleted according to the third logical
Second forwarding-table item of the carrying distal marker that announcement includes, which determines whether to delete, carries described the second of the distal marker
Forwarding-table item, and send the third to the VXLAN PI module and delete notice；
After the VXLAN PI module receives the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item, and send the third to the Bridge module and delete notice；
After the Bridge module receives the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item, and send the third to the SS MAC module and delete notice；
After the SS MAC module receives the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item.
Specifically, the BGP module, the VXLAN PI module, the Bridge module or the SS MAC module
Determine whether to delete second forwarding-table item for carrying the distal marker, specifically include:
The BGP module, the VXLAN PI module, the Bridge module or SS MAC module determination are
It is no to save second forwarding-table item for carrying distal marker, however, it is determined that save second forwarding for carrying the distal marker
List item then deletes second forwarding-table item for carrying the distal marker.
According to embodiments of the present invention, a kind of forwarding-table item update method based on VTEP is also provided, is applied in the VTEP
In, the VTEP includes BGP module, VXLAN PI module, Bridge module and SS MAC module, which comprises
After the third that the BGP module receives opposite end VTEP transmission deletes notice, notice packet is deleted according to the third
Second forwarding-table item of the carrying distal marker included determines whether that deletion carries second forwarding-table item of the distal marker,
And the third is sent to the VXLAN PI module and deletes notice；
After the VXLAN PI module receives the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item, and send the third to the Bridge module and delete notice；
After the Bridge module receives the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item, and send the third to the SS MAC module and delete notice；
After the SS MAC module receives the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item.
Specifically, the BGP module, the VXLAN PI module, the Bridge module or the SS MAC module
Determine whether to delete second forwarding-table item for carrying the distal marker, specifically include:
The BGP module, the VXLAN PI module, the Bridge module or SS MAC module determination are
It is no to save second forwarding-table item for carrying distal marker, however, it is determined that save second forwarding for carrying the distal marker
List item then deletes second forwarding-table item for carrying the distal marker.
According to embodiments of the present invention, a kind of VTEP is also provided, which is characterized in that the VTEP include SS MAC module,
Bridge module, VXLAN PI module and BGP module, in which:
The SS MAC module, after receiving the first synchronous notice that the Bridge module is sent, according to described
First forwarding-table item that the first forwarding-table item update for the carrying distal marker for including in first synchronous notice saves, and to
The Bridge module sends first and deletes notice, and the first deletion notice includes carrying first forwarding locally identified
List item；
The Bridge module, after receiving the first deletion notice, it is determined whether delete and carry the local
First forwarding-table item of mark, and send described first to the VXLAN PI module and delete notice；
The VXLAN PI module, after receiving the first deletion notice, it is determined whether delete and carry described
First forwarding-table item of ground mark, and send described first to the BGP module and delete notice；
The BGP module, after receiving the first deletion notice, it is determined whether deletion carrying is described locally to be identified
First forwarding-table item, and to opposite end VTEP send second delete notice, it is described second delete notice include carry described in
First forwarding-table item of distal marker.
Specifically, the SS MAC module, for according to the carrying distal marker for including in the described first synchronous notice
First forwarding-table item updates first forwarding-table item saved, is specifically used for:
Determine whether to save first forwarding-table item for carrying and locally identifying, however, it is determined that save and carry the local mark
First forwarding-table item, then the local mark is replaced with into the distal marker；
The Bridge module, the VXLAN PI module or the BGP module are used to determine whether to delete carrying institute
First forwarding-table item locally identified is stated, is specifically used for:
Determine whether to save and carry first forwarding-table item locally identified, however, it is determined that saves and carry the local
First forwarding-table item of mark is then deleted and carries first forwarding-table item locally identified.
Optionally, the BGP module, after being also used to receive the third deletion notice that the opposite end VTEP is sent, according to
The second forwarding-table item that the third deletes the carrying distal marker that notice includes, which determines whether to delete, carries the distal end
Second forwarding-table item of mark, and send the third to the VXLAN PI module and delete notice；
The VXLAN PI module, after being also used to receive the third deletion notice, it is determined whether delete described in carrying
Second forwarding-table item of distal marker, and send the third to the Bridge module and delete notice；
The Bridge module, after being also used to receive the third deletion notice, it is determined whether it is described remote to delete carrying
Second forwarding-table item of mark is held, and sends the third to the SS MAC module and deletes notice；
The SS MAC module, after being also used to receive the third deletion notice, it is determined whether it is described remote to delete carrying
Hold second forwarding-table item of mark.
Specifically, the BGP module, the VXLAN PI module, the Bridge module or the SS MAC mould
Block is used to determine whether to delete second forwarding-table item for carrying the distal marker, be specifically used for:
Determine whether to save second forwarding-table item for carrying distal marker, however, it is determined that save and carry the distal marker
Second forwarding-table item, then delete second forwarding-table item for carrying the distal marker.
According to embodiments of the present invention, a kind of VTEP is also provided, the VTEP include BGP module, VXLAN PI module,
Bridge module and SS MAC module, in which:
The BGP module is deleted logical after the third for receiving opposite end VTEP transmission deletes notice according to the third
Second forwarding-table item of the carrying distal marker that announcement includes determines whether to delete second forwarding for carrying the distal marker
List item, and send the third to the VXLAN PI module and delete notice；
The VXLAN PI module, after receiving the third deletion notice, it is determined whether it is described remote to delete carrying
Second forwarding-table item of mark is held, and sends the third to the Bridge module and deletes notice；
The Bridge module, after receiving the third deletion notice, it is determined whether delete and carry the distal end
Second forwarding-table item of mark, and send the third to the SS MAC module and delete notice；
The SS MAC module, after receiving the third deletion notice, it is determined whether delete and carry the distal end
Second forwarding-table item of mark.
Specifically, the BGP module, the VXLAN PI module, the Bridge module or the SS MAC mould
Block is used to determine whether to delete second forwarding-table item for carrying the distal marker, be specifically used for:
Determine whether to save second forwarding-table item for carrying distal marker, however, it is determined that save and carry the distal marker
Second forwarding-table item, then delete second forwarding-table item for carrying the distal marker.
The present invention has the beneficial effect that:
The embodiment of the present invention provides a kind of forwarding-table item update method and device based on VTEP, passes through the SS MAC mould
It is remote according to the carrying for including in the described first synchronous notice after block receives the Bridge module is sent first synchronous notice
First forwarding-table item of end mark updates first forwarding-table item saved, and sends first to the Bridge module and delete
Notice, described first deletes notice including carrying first forwarding-table item locally identified；The Bridge module receives
After described first deletes notice, it is determined whether delete and carry first forwarding-table item locally identified, and to described
VXLAN PI module sends described first and deletes notice；After the VXLAN PI module receives the first deletion notice, really
Fixed whether delete carries first forwarding-table item locally identified, and sends described first to the BGP module and delete
Notice；The BGP module receive described first delete notice after, it is determined whether delete and carry described the locally identified
One forwarding-table item, and send second to opposite end VTEP and delete notice, the second deletion notice includes carrying the distal marker
First forwarding-table item.In the program, after SSMC module receives the first synchronous notice of Bridge module transmission, no
The first forwarding-table item saved is updated according only to the first forwarding-table item of the carrying distal marker that the first synchronous notice includes, can also
First is sent to Bridge module and deletes notice, and notice Bridge module deletes the first forwarding-table item locally identified, Bridge
Module, which not only determines whether to delete, carries the first forwarding-table item for locally identifying, can also transparent transmission first delete notice, VXLAN
PI module and BGP module can also execute the operation as Bridge module, can ensure that so each in the VTEP that timely updates
The forwarding-table item of a module, avoids the occurrence of packet loss and business forwards the problems such as abnormal.
Detailed description of the invention
Fig. 1 is the schematic diagram for the forwarding-table item that modules save in the VTEP of virtual machine (vm) migration front and back；
Fig. 2 is a kind of flow chart of the forwarding-table item update method based on VTEP in the embodiment of the present invention；
Fig. 3 is the flow chart of forwarding-table item update method of the another kind based on VTEP in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of VTEP corresponding with Fig. 2 in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of VTEP corresponding with Fig. 3 in the embodiment of the present invention.
Specific embodiment
For existing in the prior art during virtual machine (vm) migration, since Network Abnormal or congestion cause
Certain module in VTEP can not timely update forwarding-table item, and then lead to problems such as packet loss occur and business forwarding is abnormal, hair
Bright people has made intensive studies.
It is assumed that virtual machine is connected on VTEP2, the forwarding-table item of the SS MAC module study in VTEP2 to virtual machine, and
Local mark is added to the forwarding-table item, can be, but not limited to be indicated with L；Then on virtual machine (vm) migration to VTEP1, in VTEP1
SS MAC module also learn the forwarding-table item to virtual machine, the SS MAC module of the SS MAC module of VTEP1 and VTEP2 is to each
From Bridge module send and carry the forwarding-table item of L mark, the Bridge module of VTEP1 and VTEP2 will continue to downward transparent transmission,
Forwarding-table item can be sent to opposite end by the BGP module on VTEP1 and VTPE2, and what the forwarding-table item only sent carried is distal end
Mark, can be, but not limited to be identified with R, after the BGP module of VTEP2 receives the forwarding-table item for carrying R, will continue to VXLAN
PI module transparent transmission, as shown in Figure 1, what is 1. indicated is that the forwarding-table item that modules save on T1 moment VTEP1 and VTEP2 carries
Mark, the transparent transmissions of modules stops not yet, the forwarding of the SS MAC module of T2 moment as shown in Figure 1 from VTEP1
List item is until the SS MAC module of VTEP2 can just stop transparent transmission, likewise, the forwarding table of the SS MAC module from VTEP2
Item is until the SS MAC module of VTEP1 can just stop transparent transmission, and the forwarding-table item that each module received later can cover
Forwarding-table item before.As shown in Figure 1, what is 2. indicated is the forwarding-table item that modules save on T2 moment VTEP1 and VTEP2
The forwarding-table item of the mark of carrying, each module on VTEP1 will be inconsistent, the forwarding table of BGP module and VXLAN PI module
What item carried is identified as L, and the forwarding-table item carrying of Bridge module and SS MAC module is identified as R, due to distal marker
Forwarding-table item does not allow aging, and the forwarding-table item as source is connected to virtual machine and has migrated in opposite end VTEP2 on VTEP2
It has arrived on VTEP1, VTEP2 is upper and the forwarding-table item without carrying L, and aging is also just not present on VTEP2, results in VTEP1
The upper forwarding-table item for carrying R cannot be deleted, and remain always.
For inventor by further investigation discovery, above-mentioned phenomenon is exactly because the forwarding-table item on VTEP1 does not timely update
It causes, for this purpose, the embodiment of the present invention provides a kind of forwarding-table item update method based on VTEP, this method is applied above-mentioned
In VTEP1 and VTEP2, the process of this method is as shown in Fig. 2, execute that steps are as follows:
After S21:SS MAC module receives the first synchronous notice of Bridge module transmission, according in the first synchronous notice
Including carrying distal marker the first forwarding-table item update save the first forwarding-table item, and to Bridge module send first
Notice is deleted, first deletes notice including carrying the first forwarding-table item locally identified.
Pass through the description to Fig. 1, it can be seen that after the SS MAC module study to forwarding-table item of local VTEP, will continue to past
Upper transparent transmission, and be successively transparent to the modules of opposite end VTEP, correspondingly, the SS MAC module of local VTEP can also receive pair
The forwarding-table item that the SS MAC module of end VTEP learns, receives particular by the Bridge module of local VTEP, should
Forwarding-table item is defined as the first forwarding-table item, the first forwarding-table item can be carried and be sent in the notice of the first synchronized, when
After the SS MAC module of local VTEP receives the first synchronous notice of Bridge module transmission, the first of preservation not only will be updated
Forwarding-table item can also send first to Bridge module and delete notice, because including carrying in the synchronous notice of first received
First forwarding-table item of distal marker, therefore, the first forwarding-table item that the carrying that SS MAC module learns locally identifies can quilts
It covers, that is, the forwarding-table item as source has been not present, at this moment can notify Bridge module is deleted to carry this terrestrial reference
The first forwarding-table item known.
After S22:Bridge module receives the first deletion notice, it is determined whether delete the first forwarding for carrying and locally identifying
List item, and send first to VXLAN PI module and delete notice.
After S23:VXLAN PI module receives the first deletion notice, it is determined whether delete first turn for carrying and locally identifying
Forwarding list item, and send first to BGP module and delete notice.
After S24:BGP module receives the first deletion notice, it is determined whether delete the first forwarding table for carrying and locally identifying
, and send second to opposite end VTEP and delete notice, the second deletion notice includes the first forwarding-table item for carrying distal marker.
In the program, after SSMC module receives the first synchronous notice of Bridge module transmission, not only according to first
First forwarding-table item of the carrying distal marker that synchronous notice includes updates the first forwarding-table item saved, can also be to Bridge mould
Block sends first and deletes notice, and notice Bridge module deletes the first forwarding-table item locally identified, and Bridge module not only can
Determine whether to delete the first forwarding-table item for carrying and locally identifying, it can also the deletion notice of transparent transmission first, VXLAN PI module and BGP
Module can also execute the operation as Bridge module, can ensure that the forwarding of modules in the VTEP that timely updates in this way
List item, avoids the occurrence of packet loss and business forwards the problems such as abnormal.
Specifically, SS MAC module in above-mentioned S21 is according to the of the carrying distal marker for including in the first synchronous notice
One forwarding-table item updates the first forwarding-table item saved, specifically includes: SS MAC module, which determines whether to save, carries local mark
The first forwarding-table item, however, it is determined that save and carry the first forwarding-table item for locally identifying, then local mark is replaced with into distal end and marked
Know.
After receiving the first synchronous notice, it locally can search whether to save the first forwarding table for carrying and locally identifying
, carrying the address repeat listing locally identified is that SS MAC module learns from the virtual machine of connection.It is taken if it is determined that saving
The first forwarding-table item that band locally identifies is said because what the first forwarding-table item in the first synchronous notice carried is distal marker
The virtual machine (vm) migration connected before bright has arrived opposite end VTEP, it is therefore not necessary to the first forwarding-table item for carrying and locally identifying is saved again,
Because the first forwarding-table item be all it is identical, as long as local mark is replaced with distal marker.
Correspondingly, above-mentioned Bridge module, VXLAN PI module or BGP module, which determine whether to delete, carries local mark
The first forwarding-table item, specifically include: Bridge module, VXLAN PI module or BGP module determine whether save carry this
First forwarding-table item of ground mark, however, it is determined that save the first forwarding-table item for carrying and locally identifying, then delete the local mark of carrying
The first forwarding-table item.Due to having received the first deletion notice, first deletes notice including carrying first turn locally identified
Forwarding list item locally can search whether to save the first forwarding-table item for carrying and locally identifying, if saving, directly deletion,
To can ensure that the presence that there will be no the forwarding-table item in the source of losing.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of forwarding-table item update method based on VTEP, should
Method is applied in above-mentioned VTEP A and VTEP B, and the process of this method is as shown in figure 3, execution step includes:
After the third that S31:BGP module receives opposite end VTEP transmission deletes notice, deleting notice according to third includes
The second forwarding-table item for carrying distal marker determines whether to delete the second forwarding-table item for carrying distal marker, and to VXLAN PI
Module sends third and deletes notice.
After S32:VXLAN PI module receives third deletion notice, it is determined whether delete second turn for carrying distal marker
Forwarding list item, and send third to Bridge module and delete notice.
After S33:Bridge module receives third deletion notice, it is determined whether delete the second forwarding for carrying distal marker
List item, and send third to SS MAC module and delete notice.
After S34:SS MAC module receives third deletion notice, it is determined whether delete the second forwarding for carrying distal marker
List item.
In the program, after the third that BGP module receives opposite end VTEP transmission deletes notice, not only determine whether to delete
Carry distal marker the second forwarding-table item, can also transparent transmission third delete notice, VXLAN PI module and Bridge module also can
The operation as BGP module is executed, the forwarding-table item of modules in the VTEP that timely updates is can ensure that in this way, avoids out
The problems such as existing packet loss and abnormal business forwarding.
Specifically, above-mentioned BGP module, VXLAN PI module, Bridge module or SS MAC module determine whether to delete
The second forwarding-table item for carrying distal marker, specifically includes: BGP module, VXLAN PI module, Bridge module or SS
MAC module determines whether to save the second forwarding-table item for carrying distal marker, however, it is determined that saves second turn for carrying distal marker
Forwarding list item then deletes the second forwarding-table item for carrying distal marker.Notice is deleted due to having received third, third deletes notice
The second forwarding-table item including carrying distal marker locally can search whether to save the second forwarding table for carrying distal marker
, if saving, directly delete, to can ensure that the presence that there will be no the forwarding-table item in the source of losing.
It deletes to notice and passively receive to delete using VTEP as active transmission respectively such as Fig. 2 and method as shown in Figure 3 and lead to
The operation executed when announcement both can be deleted notice with active transmission while can also passively received and deleted for the same VTEP certainly
Except notice, then can be performed simultaneously on VTEP such as Fig. 2 and method as shown in Figure 3.
Based on the same inventive concept, the embodiment of the present invention provides a kind of VTEP, and the device is opposite with method as shown in Figure 2
It answers, the structure of the device is as shown in figure 4, include SS MAC module 401, Bridge module 402, VXLAN PI module 403 and BGP
Module 404, in which:
SS MAC module 401, it is same according to first after the first synchronous notice for receiving the transmission of Bridge module 402
First forwarding-table item of the carryings distal marker for including in step notice updates the first forwarding-table item of preservation, and to Bridge module
402, which send first, deletes notice, and the first deletion notice includes carrying the first forwarding-table item locally identified；
Bridge module 402, after receiving the first deletion notice, it is determined whether delete first for carrying and locally identifying
Forwarding-table item, and send first to VXLAN PI module 403 and delete notice；
VXLAN PI module 403, after receiving the first deletion notice, it is determined whether delete for carrying and locally identifying
One forwarding-table item, and send first to BGP module 402 and delete notice；
BGP module 404, after receiving the first deletion notice, it is determined whether delete first turn for carrying and locally identifying
Forwarding list item, and send second to opposite end VTEP and delete notice, the second deletion notice includes carrying the first forwarding table of distal marker
?.
In the program, after SSMC module receives the first synchronous notice of Bridge module transmission, not only according to first
First forwarding-table item of the carrying distal marker that synchronous notice includes updates the first forwarding-table item saved, can also be to Bridge mould
Block sends first and deletes notice, and notice Bridge module deletes the first forwarding-table item locally identified, and Bridge module not only can
Determine whether to delete the first forwarding-table item for carrying and locally identifying, it can also the deletion notice of transparent transmission first, VXLAN PI module and BGP
Module can also execute the operation as Bridge module, can ensure that the forwarding of modules in the VTEP that timely updates in this way
List item, avoids the occurrence of packet loss and business forwards the problems such as abnormal.
Specifically, SS MAC module 401, for according to the first first turn for synchronizing the carrying distal marker for including in notice
Forwarding list item updates the first forwarding-table item saved, is specifically used for:
Determine whether to save the first forwarding-table item for carrying and locally identifying, however, it is determined that save first turn for carrying and locally identifying
Local mark is then replaced with distal marker by forwarding list item；
Bridge module 402, VXLAN PI module 403 or BGP module 404 are used to determine whether to delete carrying locally
First forwarding-table item of mark, is specifically used for:
Determine whether to save the first forwarding-table item for carrying and locally identifying, however, it is determined that save first turn for carrying and locally identifying
Forwarding list item then deletes the first forwarding-table item for carrying and locally identifying.
Optionally, BGP module 404 is deleted after being also used to receive the third deletion notice of opposite end VTEP transmission according to third
Except the second forwarding-table item for noticing the carrying distal marker for including determines whether to delete the second forwarding-table item for carrying distal marker,
And third is sent to VXLAN PI module and deletes notice；
VXLAN PI module 403, after being also used to receive third deletion notice, it is determined whether delete and carry distal marker
Second forwarding-table item, and send third to Bridge module and delete notice；
Bridge module 402 is also used to receive after third deletes notice, it is determined whether delete and carry the of distal marker
Two forwarding-table items, and send third to SS MAC module and delete notice；
SS MAC module 401 is also used to receive after third deletes notice, it is determined whether delete and carry the of distal marker
Two forwarding-table items.
Specifically, BGP module 404, VXLAN PI module 403, Bridge module 402 or SS MAC module 401, are used
In the second forwarding-table item for determining whether deletion carrying distal marker, it is specifically used for:
Determine whether to save the second forwarding-table item for carrying distal marker, however, it is determined that save second turn for carrying distal marker
Forwarding list item then deletes the second forwarding-table item for carrying distal marker.
Based on the same inventive concept, the embodiment of the present invention provides a kind of VTEP, and the device is opposite with method as shown in Figure 3
It answers, the structure of the device is as shown in figure 5, include BGP module 501, VXLAN PI module 502, Bridge module 503 and SS MAC
Module 504, in which:
BGP module 501 after the third for receiving opposite end VTEP transmission deletes notice, deletes notice packet according to third
Second forwarding-table item of the carrying distal marker included determine whether delete carry distal marker the second forwarding-table item, and to
VXLAN PI module 502 sends third and deletes notice；
VXLAN PI module 502, for receiving after third deletes notice, it is determined whether delete and carry the of distal marker
Two forwarding-table items, and send third to Bridge module 503 and delete notice；
Bridge module 503, after receiving third deletion notice, it is determined whether delete and carry the second of distal marker
Forwarding-table item, and send third to SS MAC module 504 and delete notice；
SS MAC module 504, after receiving third deletion notice, it is determined whether delete and carry the second of distal marker
Forwarding-table item.
In the program, after the third that BGP module receives opposite end VTEP transmission deletes notice, not only determine whether to delete
Carry distal marker the second forwarding-table item, can also transparent transmission second delete notice, VXLAN PI module and Bridge module also can
The operation as BGP module is executed, the forwarding-table item of modules in the VTEP that timely updates is can ensure that in this way, avoids out
The problems such as existing packet loss and abnormal business forwarding.
Specifically, BGP module 501, VXLAN PI module 502, Bridge module 503 or SS MAC module 504, are used
In the second forwarding-table item for determining whether deletion carrying distal marker, it is specifically used for:
Determine whether to save the second forwarding-table item for carrying distal marker, however, it is determined that save second turn for carrying distal marker
Forwarding list item then deletes the second forwarding-table item for carrying distal marker.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although alternative embodiment of the invention has been described, created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So the following claims are intended to be interpreted as include can
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (12)
1. a kind of forwarding-table item update method based on virtual expansible local area network tunneling termination VTEP, is applied in the VTEP
In, the VTEP includes Exchange Service SS media access control MAC module, bridge Bridge module, virtual expansible local area network
VXLAN product independence PI module and Border Gateway Protocol (BGP) module, which is characterized in that the described method includes:
After the SS MAC module receives the Bridge module is sent first synchronous notice, synchronized according to described first logical
First forwarding-table item of the carrying distal marker for including in announcement updates first forwarding-table item saved, and to the Bridge
Module sends first and deletes notice, and the first deletion notice includes carrying first forwarding-table item locally identified；
The Bridge module receive it is described first delete notice after, it is determined whether delete carry it is described locally identify it is described
First forwarding-table item, and send described first to the VXLAN PI module and delete notice；
After the VXLAN PI module receives the first deletion notice, it is determined whether delete and carry the institute locally identified
The first forwarding-table item is stated, and sends described first to the BGP module and deletes notice；
The BGP module receive described first delete notice after, it is determined whether delete and carry described the locally identified
One forwarding-table item, and send second to opposite end VTEP and delete notice, the second deletion notice includes carrying the distal marker
First forwarding-table item.
2. the method as described in claim 1, which is characterized in that the SS MAC module is wrapped according in the described first synchronous notice
First forwarding-table item of the carrying distal marker included updates first forwarding-table item saved, specifically includes:
The SS MAC module determines whether to save first forwarding-table item for carrying and locally identifying, however, it is determined that saves and carries institute
First forwarding-table item locally identified is stated, then the local mark is replaced with into the distal marker；
The Bridge module, the VXLAN PI module or the BGP module, which determine whether to delete, carries described terrestrial reference
First forwarding-table item known, specifically includes:
The Bridge module, the VXLAN PI module or the BGP module, which determine whether to save, carries described terrestrial reference
First forwarding-table item known, however, it is determined that save and carry first forwarding-table item locally identified, then delete carrying
First forwarding-table item locally identified.
3. method according to claim 1 or 2, which is characterized in that further include:
After the BGP module receives the third deletion notice that the opposite end VTEP is sent, notice packet is deleted according to the third
Second forwarding-table item of the carrying distal marker included determines whether to delete second forwarding for carrying the distal marker
List item, and send the third to the VXLAN PI module and delete notice；
After the VXLAN PI module receives the third deletion notice, it is determined whether delete the institute for carrying the distal marker
The second forwarding-table item is stated, and sends the third to the Bridge module and deletes notice；
After the Bridge module receives the third deletion notice, it is determined whether delete and carry the described of the distal marker
Second forwarding-table item, and send the third to the SS MAC module and delete notice；
After the SS MAC module receives the third deletion notice, it is determined whether delete and carry the described of the distal marker
Second forwarding-table item.
4. method as claimed in claim 3, which is characterized in that the BGP module, the VXLAN PI module, described
Bridge module or the SS MAC module determine whether that deletion carries second forwarding-table item of the distal marker,
It specifically includes:
The BGP module, the VXLAN PI module, the Bridge module or the SS MAC module determine whether to protect
Deposit second forwarding-table item for carrying distal marker, however, it is determined that save second forwarding table for carrying the distal marker
, then delete second forwarding-table item for carrying the distal marker.
5. a kind of forwarding-table item update method based on VTEP, is applied in the VTEP, the VTEP include BGP module,
VXLAN PI module, Bridge module and SS MAC module, which is characterized in that the described method includes:
After the third that the BGP module receives opposite end VTEP transmission deletes notice, deleting notice according to the third includes
The second forwarding-table item for carrying distal marker determines whether to delete second forwarding-table item for carrying the distal marker, and to
The VXLAN PI module sends the third and deletes notice；
After the VXLAN PI module receives the third deletion notice, it is determined whether delete the institute for carrying the distal marker
The second forwarding-table item is stated, and sends the third to the Bridge module and deletes notice；
After the Bridge module receives the third deletion notice, it is determined whether delete and carry the described of the distal marker
Second forwarding-table item, and send the third to the SS MAC module and delete notice；
After the SS MAC module receives the third deletion notice, it is determined whether delete and carry the described of the distal marker
Second forwarding-table item.
6. method as claimed in claim 5, which is characterized in that the BGP module, the VXLAN PI module, described
Bridge module or the SS MAC module determine whether that deletion carries second forwarding-table item of the distal marker,
It specifically includes:
The BGP module, the VXLAN PI module, the Bridge module or the SS MAC module determine whether to protect
Deposit second forwarding-table item for carrying distal marker, however, it is determined that save second forwarding table for carrying the distal marker
, then delete second forwarding-table item for carrying the distal marker.
7. a kind of VTEP, which is characterized in that the VTEP includes SS MAC module, Bridge module, VXLAN PI module and BGP
Module, in which:
The SS MAC module, after receiving the first synchronous notice that the Bridge module is sent, according to described first
First forwarding-table item of the carryings distal marker for including in synchronous notice updates first forwarding-table item of preservation, and to described
Bridge module sends first and deletes notice, and the first deletion notice includes carrying first forwarding table locally identified
?；
The Bridge module, after receiving the first deletion notice, it is determined whether deletion carrying is described locally to be identified
First forwarding-table item, and to the VXLAN PI module send it is described first delete notice；
The VXLAN PI module, after receiving the first deletion notice, it is determined whether delete and carry described terrestrial reference
First forwarding-table item known, and send described first to the BGP module and delete notice；
The BGP module, after receiving the first deletion notice, it is determined whether delete and carry the institute locally identified
The first forwarding-table item is stated, and sends second to opposite end VTEP and deletes notice, the second deletion notice includes carrying the distal end
First forwarding-table item of mark.
8. VTEP as claimed in claim 7, which is characterized in that the SS MAC module is logical for synchronizing according to described first
First forwarding-table item of the carrying distal marker for including in announcement updates first forwarding-table item saved, is specifically used for:
Determine whether to save first forwarding-table item for carrying and locally identifying, however, it is determined that save and carry the institute locally identified
The first forwarding-table item is stated, then the local mark is replaced with into the distal marker；
The Bridge module, the VXLAN PI module or the BGP module are used to determine whether to delete described of carrying
First forwarding-table item of ground mark, is specifically used for:
Determine whether to save and carry first forwarding-table item locally identified, however, it is determined that saves and carry the local mark
First forwarding-table item, then delete and carry first forwarding-table item locally identified.
9. VTEP as claimed in claim 7 or 8, which is characterized in that the BGP module is also used to receive the opposite end
After the third that VTEP is sent deletes notice, the second forwarding of the carrying distal marker that notice includes is deleted according to the third
List item determines whether to delete second forwarding-table item for carrying the distal marker, and sends institute to the VXLAN PI module
It states third and deletes notice；
The VXLAN PI module, after being also used to receive the third deletion notice, it is determined whether delete and carry the distal end
Second forwarding-table item of mark, and send the third to the Bridge module and delete notice；
The Bridge module, after being also used to receive the third deletion notice, it is determined whether delete and carry the distal end mark
Second forwarding-table item known, and send the third to the SS MAC module and delete notice；
The SS MAC module, after being also used to receive the third deletion notice, it is determined whether delete and carry the distal end mark
Second forwarding-table item known.
10. VTEP as claimed in claim 9, which is characterized in that the BGP module, the VXLAN PI module, described
Bridge module or the SS MAC module are used to determine whether to delete second forwarding for carrying the distal marker
List item is specifically used for:
Determine whether to save second forwarding-table item for carrying distal marker, however, it is determined that save the institute for carrying the distal marker
The second forwarding-table item is stated, then deletes second forwarding-table item for carrying the distal marker.
11. a kind of VTEP, which is characterized in that the VTEP includes BGP module, VXLAN PI module, Bridge module and SS
MAC module, in which:
The BGP module after the third for receiving opposite end VTEP transmission deletes notice, deletes notice packet according to the third
Second forwarding-table item of the carrying distal marker included determines whether that deletion carries second forwarding-table item of the distal marker,
And the third is sent to the VXLAN PI module and deletes notice；
The VXLAN PI module, after receiving the third deletion notice, it is determined whether delete and carry the distal end mark
Second forwarding-table item known, and send the third to the Bridge module and delete notice；
The Bridge module, after receiving the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item, and send the third to the SS MAC module and delete notice；
The SS MAC module, after receiving the third deletion notice, it is determined whether delete and carry the distal marker
Second forwarding-table item.
12. VTEP as claimed in claim 11, which is characterized in that the BGP module, the VXLAN PI module, described
Bridge module or the SS MAC module are used to determine whether to delete second forwarding for carrying the distal marker
List item is specifically used for:
Determine whether to save second forwarding-table item for carrying distal marker, however, it is determined that save the institute for carrying the distal marker
The second forwarding-table item is stated, then deletes second forwarding-table item for carrying the distal marker.
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