CN109639557A - Methods, devices and systems for network communication - Google Patents
Methods, devices and systems for network communication Download PDFInfo
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- CN109639557A CN109639557A CN201910109575.XA CN201910109575A CN109639557A CN 109639557 A CN109639557 A CN 109639557A CN 201910109575 A CN201910109575 A CN 201910109575A CN 109639557 A CN109639557 A CN 109639557A
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- gateway
- data message
- vxlan
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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
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/20—Hop count for routing purposes, e.g. TTL
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
- H04L63/101—Access control lists [ACL]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/133—Protocols for remote procedure calls [RPC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
Abstract
Embodiment of the disclosure discloses the methods, devices and systems for network communication.One specific embodiment of this method includes: to receive the VXLAN data message from virtual private cloud router；In response to detect VXLAN data message outer layer purpose IP address be external private line gateway IP address, and the target MAC (Media Access Control) address of the internal layer of VXLAN data message be external private line gateway MAC Address, parse VXLAN data message；Send the VXLAN data message after parsing to by physics special line according to the route forwarding table of external private line gateway the gateway of user network.The embodiment improves the reliability of special line product, stability.
Description
Technical field
Embodiment of the disclosure is related to field of computer technology, and in particular to for network communication method, apparatus and be
System.
Background technique
Access via telephone line provides a kind of quick, secure connection VPC (virtual private cloud, virtual private cloud)
With the method for IDC (Internet Data Center, Internet data center), user can be got through by a physics special line
Positioned at the cloud resource of access point local domain, then the cloud resource of all regions VPC may be implemented by peer to peer connection, flexibility and reliability
Mixed cloud deployment.
Current special line channel only supports static routing to access, quiet when network topology changes or after faulty generation
State routing will not be from corrigendum, it is necessary to be modified by hand by user.Static routing is suitble to small-sized single network, more in routing entry
It is easy error under environment, needs user's manual configuration, it is possible that mistake or loop, reduce access public cloud effect in this way
Rate increases network stabilization risk.
Summary of the invention
Embodiment of the disclosure proposes the method and apparatus for network communication.
In a first aspect, embodiment of the disclosure provides a kind of method for network communication, it is applied to external private wire network
It closes, comprising: receive the VXLAN data message from virtual private cloud router；In response to detecting the outer of VXLAN data message
The purpose IP address of layer is the IP address of external private line gateway, and the target MAC (Media Access Control) address of the internal layer of VXLAN data message is outside
The MAC Address of private line gateway parses VXLAN data message；It will be after parsing according to the route forwarding table of external private line gateway
VXLAN data message is sent to the gateway of user network by physics special line.
In some embodiments, this method further include: receive the data packet of the gateway from user network；Routing is searched to turn
Next hop information in delivering；Data envelope is dressed up into VXLAN data message according to next hop information；By the VXLAN after encapsulation
Data message forwarding is to virtual private cloud router.
In some embodiments, this method further include: obtain the first routing iinformation and VPN instance of the gateway of user network
Secondary route information；Private server is sent by the first routing iinformation and secondary route information.
Second aspect, embodiment of the disclosure provide a kind of method for network communication, are applied to virtual private cloud
Router, comprising: receive the data packet from virtual private cloud；Message matching is carried out to determine next hop information to data packet；
Data envelope is dressed up into VXLAN data message according to next hop information；External private line gateway is sent by VXLAN data message.
In some embodiments, virtual private cloud router supports equivalent route forwarding；And message is carried out to data packet
Matching is to determine next hop information, comprising: if the quantity for carrying out the next hop information that message matching obtains to data packet is greater than
1, then a next hop information is selected by hash algorithm.
The third aspect, embodiment of the disclosure provide a kind of method for network communication, are applied to private server,
It include: the secondary route letter for receiving the first routing iinformation and VPN instance of the gateway for the user network that external private line gateway is sent
Breath；In response to detecting that the first routing iinformation and/or secondary route information change, the routing for modifying external private line gateway turns
It delivers.
In some embodiments, this method further include: health detection is carried out to physics special line by external private line gateway.
Fourth aspect, embodiment of the disclosure provide a kind of device for network communication, are applied to external private wire network
It closes, comprising: the first receiving unit is configured to receive the VXLAN data message from virtual private cloud router；Parsing is single
Member is configured in response to detect that the purpose IP address of the outer layer of VXLAN data message is the IP address of external private line gateway,
And the target MAC (Media Access Control) address of the internal layer of VXLAN data message is the MAC Address of external private line gateway, parses VXLAN data message；
First transmission unit is configured to be passed through the VXLAN data message after parsing according to the route forwarding table of external private line gateway
Physics special line is sent to the gateway of user network.
In some embodiments, device further include: the second receiving unit is configured to receive the net from user network
The data packet of pass；Query unit is configured to search the next hop information in route forwarding table；First encapsulation unit, is configured
Data envelope is dressed up into VXLAN data message at according to next hop information；Second transmission unit, after being configured to encapsulate
VXLAN data message forwarding is to virtual private cloud router.
In some embodiments, device further include: third receiving unit is configured to obtain the gateway of user network
The secondary route information of first routing iinformation and VPN instance；Third transmission unit is configured to the first routing iinformation and second
Routing iinformation is sent to private server.
5th aspect, embodiment of the disclosure provide a kind of device for network communication, are applied to virtual private cloud
Router, comprising: the 4th receiving unit is configured to receive the data packet from virtual private cloud；Matching unit is configured to
Message matching is carried out to determine next hop information to data packet；Second encapsulation unit is configured to be counted according to next hop information
VXLAN data message is dressed up according to encapsulating；4th transmission unit is configured to send external private wire network for VXLAN data message
It closes.
In some embodiments, virtual private cloud router supports equivalent route forwarding；And matching unit further by
It is configured to: if the quantity for carrying out the next hop information that message matching obtains to data packet is greater than 1, being selected by hash algorithm
One next hop information.
6th aspect, embodiment of the disclosure provide a kind of device for network communication, are applied to private server,
Include: the 5th receiving unit, is configured to receive the first routing iinformation of the gateway for the user network that external private line gateway is sent
With the secondary route information of VPN instance；Detection unit is routed, is configured in response to detect the first routing iinformation and/or the
Two routing iinformations change, and modify the route forwarding table of external private line gateway.
In some embodiments, which further includes health routing detection unit, is configured to: by external private line gateway
Health detection is carried out to physics special line.
7th aspect, embodiment of the disclosure provide a kind of system for network communication, comprising: external private wire network
It closes, is configured to receive the VXLAN data message from virtual private cloud router, in response to detecting VXLAN data message
Outer layer purpose IP address be external private line gateway IP address, and the target MAC (Media Access Control) address of the internal layer of VXLAN data message is
The MAC Address of external private line gateway parses VXLAN data message, after being parsed according to the route forwarding table of external private line gateway
VXLAN data message the gateway of user network is sent to by physics special line；Virtual private cloud router is configured to receive
Data packet from virtual private cloud will according to next hop information to data packet progress message matching to determine next hop information
Data envelope dresses up VXLAN data message, sends external private line gateway for VXLAN data message；The gateway of user network, quilt
It is configured to carry out data communication by physics special line with external private line gateway.
In some embodiments, system further include: private server is configured to receive what external private line gateway was sent
First routing iinformation of the gateway of user network and the secondary route information of VPN instance, in response to detecting the first routing iinformation
And/or secondary route information changes, and modifies the route forwarding table of external private line gateway.
Eighth aspect, embodiment of the disclosure provide a kind of electronic equipment, comprising: one or more processors；Storage
Device is stored thereon with one or more programs, when one or more programs are executed by one or more processors, so that one
Or multiple processors are realized such as method any in first aspect.
9th aspect, embodiment of the disclosure provide a kind of computer-readable medium, are stored thereon with computer program,
Wherein, it realizes when program is executed by processor such as method any in first aspect.
The methods, devices and systems for network communication that embodiment of the disclosure provides, by between VPC and IDC
At least one special line is set up, load balancing and active-standby mode is held, supports the functions such as switching under active-standby mode, support user from list
The heart develops to multicenterization, and single node network failure is avoided to affect to business.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the disclosure is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is that one embodiment of the disclosure can be applied to exemplary system architecture figure therein；
Fig. 2 is the flow chart according to one embodiment of the method for network communication of the disclosure；
Fig. 3 is that one embodiment of the disclosure can be applied to another exemplary system architecture figure therein；
Fig. 4 is the stream according to the message matching equivalent route of one embodiment of the method for network communication of the disclosure
Cheng Tu；
Fig. 5 is the process according to the special line health examination of one embodiment of the method for network communication of the disclosure
Figure；
Fig. 6 is the structural schematic diagram according to one embodiment of the device for network communication of the disclosure；
Fig. 7 is the structural schematic diagram according to another embodiment of the device for network communication of the disclosure；
Fig. 8 is the structural schematic diagram according to another embodiment of the device for network communication of the disclosure；
Fig. 9 is adapted for the structural schematic diagram for the computer system for realizing the electronic equipment of embodiment of the disclosure.
Specific embodiment
The disclosure is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that in order to
Convenient for description, part relevant to related invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the disclosure can phase
Mutually combination.The disclosure is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is shown can be using the method for network communication of the disclosure or the implementation of the device for network communication
The exemplary system architecture 100 of example.
As shown in Figure 1, system architecture 100 may include virtual private cloud router (BVR) 101, external private line gateway
(EVR) 102, the gateway (GW) 103 of user network.Wherein, there is at least one private line gateway (qz) 104 on BVR, each qz is corresponding
One paths.VNI (VPN (Virtual Private Network, Virtual Private Network) example) and VRF on EVR
(virtual routing forwarding, VPN route forwarding table) is one-to-one.BDIF on BVR-qz interface and EVR
(broadcast domain interface) interface corresponds, and VNI is identical.BDIF and VLAN interface (VLAN1, VLAN2) is corresponded, he
Belong to identical VRF.
For going out the flow of VPC, qz walks overlay and is sent to VXLAN gateway, the purpose of VXLAN gateway discovery outer layer packet
ID is this vtep ip, and internal layer purpose MAC is the MAC of BDIF, then parses VXLAN message, forwarded by VRF routing table, from correspondence
VLANinterface go out (if VLAN interface supports LAG, it is also necessary to go out by a Hash operation).
For the flow into VPC, for VLAN interface by searching for the routing table in VRF, next-hop is VXLAN net
It closes, by packaging V XLAN message, is forwarded on corresponding qz interface.
By taking Fig. 1 as an example, user has two physics special lines to be respectively connected to create two VLAN onto two, cloud EVR, EVR1
Interface and BDIF, and be belonging respectively to create two VLAN interface and BDIF on two differences VRF, EVR2, and point
4 BDIF not belonged on two differences VRF, EVR1 and EVR2 (do not require be identical with 4 qz on BVR respectively
VPC, equivalent route discussed here are all identical VPC) establish the tunnel VXLAN.
For the insulation request of EVR: the flow between different qz cannot be forwarded mutually.From different VLAN
The flow of interface cannot be forwarded mutually.Flow between BDIF and VLANinterface can only be forwarded in this VRF.
It should be understood that the net of virtual private cloud router (BVR), external private line gateway (EVR), user network in Fig. 1
The number for closing (GW) is only schematical.According to needs are realized, any number of virtual private cloud router, outer can have
The gateway (GW) of portion's private line gateway (EVR), user network.
With continued reference to Fig. 2, the process of one embodiment of the method for network communication according to the disclosure is shown
200.This is used for the method for network communication, comprising the following steps:
Step 201, virtual private cloud router obtains data packet from VPC.
In the present embodiment, for the executing subject of the method for network communication (such as virtual private cloud shown in FIG. 1 routing
Device (BVR)) data from VPN-instance can be obtained from VPC by wired connection mode or radio connection
Packet.VPN-instance (VPN instance), VPN instance be also known as VRF (Virtual Routing and Forwarding, virtually
Routing and forwarding) example.Each VPN instance has relatively independent routing table and LFIB (Label Forwarding
Information Base, tag forwarding information base).RD (Route Distinguisher, Route Distinguisher): for solving
The routing of VPN when different VRF space overlaps.RT (Route Target or VPN Target): BGP extended community category is used
Property, for controlling the publication of VPN routing iinformation.
Step 202, virtual private cloud router carries out message matching to data packet to determine next hop information.
In the present embodiment, data surface supports equivalent route forwarding, and control plane supports addition to delete equivalent route.BVR etc.
Valence routing is responsible for VPC to IDC flow load balance to not passing on special line channel, as shown in Figure 1.Adjust BVR routing table
Data structure increases the field of entry type, indicates common routing or equivalent route, commonly routes only one next-hop,
Equivalent route has multiple next-hops.All policybased routing rule build have been arrived the same ACL (Access by BVR at present
Control List, accesses control list) classification, so every time matching message can only obtain a userdata (user data,
Such as the index of routing table).
If equivalent route is distinguished build in different classes of, when each matching message, can return multiple
userdata.Single effective userdata indicates only one next-hop, then is directly forwarded according to this next-hop.It is more
A effective userdata indicates multiple next-hops.If having obtained multiple next-hops, it is further added by a hash (Hash) and calculates
Method selects one of next-hop and is forwarded message.
It is assumed that have 4 rules in router table (routing table) at present, wherein regular 2, rule 3,
4 equivalent route each other of rule, DPDK's (IntelDataPlaneDevelopmentKit, data plane developing instrument collection)
ACL ctx only exists rule 1 and regular 4 (equivalent route only has a rule in build ACL and is added in ACL ctx)
Node (node).It is as follows to match process:
When receiving the message to match with equivalent route, the node of rule 4 can be matched, and obtained user data and (used
User data) it is 5, then regular 4 in corresponding router table.
It is in ECMP (Equal-Cost Multipath Routing, equal cost multipath) group index of 4 record of rule
1, illustrate that this rule is equivalent route, corresponding ECMP group is found by ECMP group index, obtains effective member of this ECMP group
The number of (member).
According to the number of the five-tuple of message and member carry out hash (Hash) calculate, obtain 0~member number it
Between a number, if what is obtained is 0；
Member0 in the corresponding ECMP group of hash value 0, and member0=3, corresponding advised in router table
Then 2；
Finally according to rule 2 in next hop (next-hop) and output interface (output interface) sealed
Fill message.
Step 203, data envelope is dressed up VXLAN data message according to next hop information by virtual private cloud router.
In the present embodiment, as shown in Figure 4, according to the next hop (next-hop) and output in rule 2
Interface (output interface) is packaged message.
Step 204, VXLAN data message is sent external private line gateway by virtual private cloud router.
In the present embodiment, virtual private cloud router is sent VXLAN data message to by Virtual Private Line external special
Gauze closes.As shown in Figure 1, which EVR left by the routing table determination of BVR, then sends this for message there are two EVR
EVR。
Step 205, external private line gateway is outside in response to the purpose IP address for detecting the outer layer of VXLAN data message
The IP address of private line gateway, and the target MAC (Media Access Control) address of the internal layer of VXLAN data message is the MAC Address of external private line gateway, solution
Analyse VXLAN data message.
In the present embodiment, whether EVR determines the VXLAN data message by oneself according to the content of VXLAN data message
VXLAN data message is carried out parsing and changes into physics special line by processing if otherwise condition that IP and MAC Address oneself are handled
The UDP message packet of upper transmission.
Step 206, external private line gateway is according to the route forwarding table of external private line gateway by the VXLAN datagram after parsing
Text is sent to the gateway of user network by physics special line.
In the present embodiment, physics special line, which refers to, provides the dedicated link of various rates for client, which is directly connected to
IP backbone network realizes conveniently high speed internet service on net.In embodiments of the present invention, physics special line refers to connection
The special line of VPC network and IDC network.Data packet after parsing is found corresponding gateway according to destination address to be forwarded.
Step 207, external private line gateway receives the data packet of the gateway from user network.
In the present embodiment, which can be UDP message packet.
Step 208, external private line gateway searches the next hop information in route forwarding table.
In the present embodiment, the information of the VXLAN gateway of next-hop is had recorded in VRF, for example, the volume of private line gateway qz
Number.
Step 209, data envelope is dressed up VXLAN data message according to next hop information by external private line gateway.
In the present embodiment, data envelope is dressed up by VXLAN data message according to the information of the VXLAN gateway of next-hop.
Step 210, external private line gateway is by the VXLAN data message forwarding after encapsulation to virtual private cloud router.
In the present embodiment, EVR will be on the private line gateway qz of the VXLAN data message forwarding after encapsulation to BVR.
Step 211, external private line gateway obtains the first routing iinformation of the gateway of user network.
In the present embodiment, EBGP is established between external private line gateway and the gateway of user network.User is in user network
Gateway on issue the routing of oneself IDC, VPC can get the first routing iinformation of the gateway of user network.
Step 212, external private line gateway obtains the secondary route information of VPN instance.
In the present embodiment, BGP (Border Gateway Protocol, Border Gateway Protocol).After special line supports BGP,
When network topology changes, the routing of IDC will be updated VPC routing iinformation, and VPC routes the routing that can also be synchronized to IDC
Table.It when the link between nodes or node breaks down, can find to route automatically according to Routing Protocol, voluntarily selection is best
Available routing and continue to E-Packet.
Step 213, the first routing iinformation and secondary route information are sent private server by external private line gateway.
In the present embodiment, private server is as shown in 304 in Fig. 3, it may include private server 304 is acted on behalf of including special line
(abbreviation agent), special line manager (abbreviation master), Neutron server (middle child servers) and database are (referred to as
db).Agent and EVR establishes IBGP (Internal Border Gateway Protocol, Internal BGP), EVR
Establishing EBGP with user gateway, (External Border Gateway Protocol, External BGP, agent are negative
Duty is reported calls neutron server addition to delete routing to master, master.
Step 214, private server is in response to detecting that the first routing iinformation and/or secondary route information change,
Modify the route forwarding table of external private line gateway.
Fig. 3 is shown can be using the method for network communication of the disclosure or the implementation of the device for network communication
The another exemplary system architecture 300 of example.
As shown in figure 3, system architecture 300 may include virtual private cloud router (BVR) 301, external private line gateway
(EVR) 302, gateway (GW) 303, the private server 304 of user network.Private server 304 includes special line agency's (abbreviation
Agent), special line manager (abbreviation master), Neutron server (middle child servers) and database (abbreviation db).Below
Specifically introduce each functions of modules:
One, external private line gateway (EVR) 302:
It is responsible for and tenant IDC establishes EBGP, realize the isolation of different tenants, learns IDC routing iinformation.By all vpn-
The bgp information of instanc is transmitted in bgpd (BGP finger daemon) by IBGP.The BGP of vpn-instanc exports this vpn-
Instanc static routing.
Two, special line is acted on behalf of
Function: deployment bgpd.Receive the routing iinformation of all vpn-instance EBGP on the EVR of one's respective area.Carry out road
By routing and routing policy, calculate RIB (Routing Information Base, routing information base).The RIB of its increment is pushed away
Give master.
Process:
(1) start gobgpd (BGP finger daemon)
Using the information configuration of EVR in configuration file, the EVR in starting gobgp, with one's respective area establishes IBGP respectively.
The api that gobgp is called when master starts reads db and creates all VRF, monitors the variation of routing iinformation.
(2) private line gateway binds special line channel
Judge that VRF whether there is, if it does not exist, then creation creates VRF in the bgpd of one's respective area.
Update the parameter on the vpn-instance in EVR special line channel, Route Distinguisher and VPN destination value.
Learn the routing table in VRF, calls neutron server addition routing.
(3) private line gateway solution binds special line channel
Delete the Route Distinguisher and VPN destination value of special line channel vpn-instance on EVR.
Delete all routings on this EBGP.
The timing of the last one private line gateway unbundlings, which is deleted, in VPC corresponds to VRF on gobgpd.
(3) special line manager
Function:
It (is developed by google by grpc, is the remote procedure call (RPC) of a language-neutral, platform-neutral, open source
System) gobgp-api is called, monitor routing iinformation.Master points active and standby, the standby data for not handling bgpd push.Support user
The routing of the side VPC is issued and cancelled by EBGP, and prefix is supported customized.Master supports trans-regional calling neutron
The interface of server.
Support the configuration of BFD.
Process:
(1) the active and standby control of Master
By etcd, (a key-value pair data storage system increasing income, distributed, provides the note of configuration sharing, service
Volume and discovery) carry out choosing master.
(2) additions and deletions, which change, looks into BGP and BFD (Bidirectional Forwarding Detection, two-way converting detection).
BFD is general, standardized, the unrelated quick fault testing mechanism unrelated with agreement of medium, for detecting IP network
The connection situation of middle link guarantees that communication failure can be quickly detected between equipment, so as to take timely measure, guarantees
Business continuous service.
(3) side IDC routing update
Routing update is received, if special line channel is also unbound, bgp routing information adds or deletes DB.If special line channel is
Binding, routing iinformation add or delete database, and neutron server is called to add or delete special line routing.
Private line gateway binding: neutron server is called to add all BGP special line routings learnt.
The binding of private line gateway solution: when deleting qz-id, neutron will be deleted all routings.
(4) EVR VPN instance EBGP peer-to-peer enables
Private line gateway state is updated to unavailable.
The state for updating neutron private line gateway is available, other static routing are available.
(5) EVRVPN example EBGP peer-to-peer deactivates
It calls neutron server to delete all BGP special line routings, deletes the BGP special line road in database to reply
By.Private line gateway state is updated to unavailable.The state for updating neutron private line gateway is unavailable, other static routing are not
It can use.
(6) VPC dypass by
User makes network segment by oneself, and cloud network is deleted in addition, and corresponding VPN instance is added/deleted in calling system private leased circuit service
VPN instance static routing is distributed to EBGP peer-to-peer by static routing, EBGP.
The system also has the function of health examination, as shown in figure 5, each module declaration is as follows:
1. the interface of special line manager is called at special customer end by RPC or HTTP mode, realize create (creation),
List (list), get (acquisition), delete (deletion), update (update) health examination example.
2. health examination manager receives request, the interaction of EVR, Neutron server are designed:
Neutron server interface is called to create port, delete port, the VNI of the affiliated VPC of private line gateway is inquired, looks into
Ask the IP and MAC of the qr of detection IP.EVR interface is called to configure EVR.
3. special line acts on behalf of timing reading database, the example for calculating which health examination starts to send probe messages.
4. module of giving out a contract for a project constructs VXLAN packet, gives out a contract for a project according to the configuration of health examination example.Simultaneously (in real time to NSQ
Distributed message transmits platform) lookupd (management topology information simultaneously provides the process for finding service of final consistency) publication
Delay message (delay message).
5. packet receiving module monitors 4789 port UDP, VXLAN decapsulation is carried out, according to message information, (is divided in real time to NSQ
Cloth messaging platform) lookup (management topology information simultaneously provide final consistency discovery service process) publication disappear
Breath.
6. health examination manager subscribes to the message of NSQ, the state for judge link after message is received, then by its shape
State is updated into the routing output state of neutron.
With further reference to Fig. 6, as the realization to method shown in above-mentioned each figure, it is logical for network that present disclose provides one kind
One embodiment of the device of letter, the Installation practice is corresponding with embodiment of the method shown in Fig. 2, is applied to external private wire network
It closes, which specifically can be applied in various electronic equipments.
As shown in fig. 6, the device 600 for network communication of the present embodiment includes: the first receiving unit 601, parsing list
Member 602 and the first transmission unit 603.Wherein, the first receiving unit 601 is configured to receive from virtual private cloud router
VXLAN data message.Resolution unit 602 is configured in response to detecting the destination IP of the outer layer of VXLAN data message
Location is the IP address of external private line gateway, and the target MAC (Media Access Control) address of the internal layer of VXLAN data message is external private line gateway
MAC Address parses VXLAN data message.First transmission unit 603, is configured to the routing forwarding according to external private line gateway
Table sends the VXLAN data message after parsing to by physics special line the gateway of user network.
In some optional implementations of the present embodiment, device 600 further include: the second receiving unit 604 is configured
At the data packet for receiving the gateway from user network.Query unit 605 is configured to search the next-hop in route forwarding table
Information.First encapsulation unit 606 is configured to that data envelope is dressed up VXLAN data message according to next hop information.Second hair
Unit 607 is sent, the VXLAN data message forwarding after being configured to encapsulate to virtual private cloud router.
In some optional implementations of the present embodiment, device 600 further include: third receiving unit 608 is configured
At the first routing iinformation of the gateway for obtaining user network and the secondary route information of VPN instance.Third transmission unit 609, quilt
It is configured to send private server for the first routing iinformation and secondary route information.
With further reference to Fig. 7, as the realization to method shown in above-mentioned each figure, it is logical for network that present disclose provides one kind
One embodiment of the device of letter, the Installation practice is corresponding with embodiment of the method shown in Fig. 2, is applied to virtual private cloud
Router, the device specifically can be applied in various electronic equipments.
As shown in fig. 7, the device 700 for network communication of the present embodiment includes: the 4th receiving unit 701, matching list
First 702, second encapsulation unit 703 and the 4th transmission unit 704.Wherein, the 4th receiving unit 701 is configured to reception and comes from
The data packet of virtual private cloud.Matching unit 702 is configured to carry out message matching to the data packet to determine that next-hop is believed
Breath.Second encapsulation unit 703 is configured to that the data envelope is dressed up VXLAN data message according to the next hop information.
4th transmission unit 704 is configured to send external private line gateway for the VXLAN data message.
In some optional implementations of the present embodiment, virtual private cloud router supports equivalent route forwarding；With
And matching unit 702 is further configured to: if the quantity for carrying out the next hop information that message matching obtains to data packet is big
In 1, then a next hop information is selected by hash algorithm.
With further reference to Fig. 8, as the realization to method shown in above-mentioned each figure, it is logical for network that present disclose provides one kind
One embodiment of the device of letter, the Installation practice is corresponding with embodiment of the method shown in Fig. 2, is applied to private leased circuit service
Device, the device specifically can be applied in various electronic equipments.
As shown in figure 8, the device 800 for network communication of the present embodiment includes: the 5th receiving unit 801, it is configured
At the first routing iinformation of the gateway for receiving the user network that external private line gateway is sent and the secondary route information of VPN instance.
Detection unit 802 is routed, is configured in response to detect that the first routing iinformation and/or secondary route information change, repair
Change the route forwarding table of external private line gateway.
In some optional implementations of the present embodiment, device 800 further includes health routing detection unit 803, quilt
It is configured to: health detection is carried out to physics special line by external private line gateway.
Below with reference to Fig. 9, it illustrates the electronic equipment that is suitable for being used to realize embodiment of the disclosure, (example is as shown in figure 1
External private line gateway, virtual private cloud router, private server) 900 structural schematic diagram.External private wire network shown in Fig. 9
Pass, virtual private cloud router, private server are only an example, should not function and use to embodiment of the disclosure
Range band carrys out any restrictions.
As shown in figure 9, electronic equipment 900 may include processing unit (such as central processing unit, graphics processor etc.)
901, random access can be loaded into according to the program being stored in read-only memory (ROM) 902 or from storage device 908
Program in memory (RAM) 903 and execute various movements appropriate and processing.In RAM 903, it is also stored with electronic equipment
Various programs and data needed for 900 operations.Processing unit 901, ROM 902 and RAM903 are connected with each other by bus 904.
Input/output (I/O) interface 905 is also connected to bus 904.
In general, following device can connect to I/O interface 905: including such as touch screen, touch tablet, keyboard, mouse, taking the photograph
As the input unit 906 of head, microphone, accelerometer, gyroscope etc.；Including such as liquid crystal display (LCD), loudspeaker, vibration
The output device 907 of dynamic device etc.；Storage device 908 including such as tape, hard disk etc.；And communication device 909.Communication device
909, which can permit electronic equipment 900, is wirelessly or non-wirelessly communicated with other equipment to exchange data.Although Fig. 9 shows tool
There is the electronic equipment 900 of various devices, it should be understood that being not required for implementing or having all devices shown.It can be with
Alternatively implement or have more or fewer devices.Each box shown in Fig. 9 can represent a device, can also root
According to needing to represent multiple devices.
Particularly, in accordance with an embodiment of the present disclosure, it may be implemented as computer above with reference to the process of flow chart description
Software program.For example, embodiment of the disclosure includes a kind of computer program product comprising be carried on computer-readable medium
On computer program, which includes the program code for method shown in execution flow chart.In such reality
It applies in example, which can be downloaded and installed from network by communication device 909, or from storage device 908
It is mounted, or is mounted from ROM 902.When the computer program is executed by processing unit 901, the implementation of the disclosure is executed
The above-mentioned function of being limited in the method for example.It should be noted that computer-readable medium described in embodiment of the disclosure can be with
It is computer-readable signal media or computer readable storage medium either the two any combination.It is computer-readable
Storage medium for example may be-but not limited to-the system of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor, device or
Device, or any above combination.The more specific example of computer readable storage medium can include but is not limited to: have
The electrical connection of one or more conducting wires, portable computer diskette, hard disk, random access storage device (RAM), read-only memory
(ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-
ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.In embodiment of the disclosure, computer
Readable storage medium storing program for executing can be any tangible medium for including or store program, which can be commanded execution system, device
Either device use or in connection.And in embodiment of the disclosure, computer-readable signal media may include
In a base band or as the data-signal that carrier wave a part is propagated, wherein carrying computer-readable program code.It is this
The data-signal of propagation can take various forms, including but not limited to electromagnetic signal, optical signal or above-mentioned any appropriate
Combination.Computer-readable signal media can also be any computer-readable medium other than computer readable storage medium, should
Computer-readable signal media can send, propagate or transmit for by instruction execution system, device or device use or
Person's program in connection.The program code for including on computer-readable medium can transmit with any suitable medium,
Including but not limited to: electric wire, optical cable, RF (radio frequency) etc. or above-mentioned any appropriate combination.
Above-mentioned computer-readable medium can be included in above-mentioned electronic equipment；It is also possible to individualism, and not
It is fitted into the electronic equipment.Above-mentioned computer-readable medium carries one or more program, when said one or more
When a program is executed by the electronic equipment, so that the electronic equipment: receiving the VXLAN datagram from virtual private cloud router
Text；In response to detect the VXLAN data message outer layer purpose IP address be the external private line gateway IP address,
And the target MAC (Media Access Control) address of the internal layer of the VXLAN data message is the MAC Address of the external private line gateway, described in parsing
VXLAN data message；The VXLAN data message after parsing is passed through into physics according to the route forwarding table of the external private line gateway
Special line is sent to the gateway of user network.Either when said one or multiple programs are executed by the electronic equipment, so that should
Electronic equipment: the data packet from virtual private cloud is received；Message matching is carried out to determine next hop information to the data packet；
The data envelope is dressed up into VXLAN data message according to the next hop information；It sends the VXLAN data message to outer
Portion's private line gateway.Either when said one or multiple programs are executed by the electronic equipment, so that the electronic equipment: receiving outer
First routing iinformation of the gateway for the user network that portion's private line gateway is sent and the secondary route information of VPN instance；In response to inspection
It measures first routing iinformation and/or the secondary route information changes, modify the routing forwarding of external private line gateway
Table.
The behaviour for executing embodiment of the disclosure can be write with one or more programming languages or combinations thereof
The computer program code of work, described program design language include object oriented program language-such as Java,
Smalltalk, C++ further include conventional procedural programming language-such as " C " language or similar program design language
Speech.Program code can be executed fully on the user computer, partly be executed on the user computer, as an independence
Software package execute, part on the user computer part execute on the remote computer or completely in remote computer or
It is executed on server.In situations involving remote computers, remote computer can pass through the network of any kind --- packet
It includes local area network (LAN) or wide area network (WAN)-is connected to subscriber computer, or, it may be connected to outer computer (such as benefit
It is connected with ISP by internet).
Flow chart and block diagram in attached drawing are illustrated according to the system of the various embodiments of the disclosure, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, program segment or code of table, a part of the module, program segment or code include one or more use
The executable instruction of the logic function as defined in realizing.It should also be noted that in some implementations as replacements, being marked in box
The function of note can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are actually
It can be basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.Also it to infuse
Meaning, the combination of each box in block diagram and or flow chart and the box in block diagram and or flow chart can be with holding
The dedicated hardware based system of functions or operations as defined in row is realized, or can use specialized hardware and computer instruction
Combination realize.
Being described in unit involved in embodiment of the disclosure can be realized by way of software, can also be passed through
The mode of hardware is realized.Described unit also can be set in the processor, for example, can be described as: a kind of processor
Including the first receiving unit, resolution unit, the first transmission unit.Wherein, the title of these units not structure under certain conditions
The restriction of the pairs of unit itself, for example, the first receiving unit is also described as " receiving from virtual private cloud router
VXLAN data message unit ".
Above description is only the preferred embodiment of the disclosure and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the disclosure, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed in the disclosure
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (18)
1. a kind of method for network communication is applied to external private line gateway, comprising:
Receive the VXLAN data message from virtual private cloud router；
In response to detect the VXLAN data message outer layer purpose IP address be the external private line gateway IP
Location, and the target MAC (Media Access Control) address of the internal layer of the VXLAN data message is the MAC Address of the external private line gateway, described in parsing
VXLAN data message；
It is sent the VXLAN data message after parsing to by physics special line according to the route forwarding table of the external private line gateway
The gateway of user network.
2. according to the method described in claim 1, wherein, the method also includes:
Receive the data packet of the gateway from the user network；
Search the next hop information in the route forwarding table；
The data envelope is dressed up into VXLAN data message according to the next hop information；
By the VXLAN data message forwarding after encapsulation to the virtual private cloud router.
3. according to the method described in claim 1, wherein, the method also includes:
Obtain the first routing iinformation of the gateway of the user network and the secondary route information of VPN instance；
Private server is sent by first routing iinformation and the secondary route information.
4. a kind of method for network communication is applied to virtual private cloud router, comprising:
Receive the data packet from virtual private cloud；
Message matching is carried out to determine next hop information to the data packet；
The data envelope is dressed up into VXLAN data message according to the next hop information；
External private line gateway is sent by the VXLAN data message.
5. according to the method described in claim 4, wherein, the virtual private cloud router supports equivalent route forwarding；And
Message matching is carried out to determine next hop information to the data packet, comprising:
If the quantity for carrying out the next hop information that message matching obtains to the data packet is greater than 1, selected by hash algorithm
Select a next hop information.
6. a kind of method for network communication is applied to private server, comprising:
Receive the first routing iinformation of the gateway for the user network that external private line gateway is sent and the secondary route letter of VPN instance
Breath；
In response to detecting that first routing iinformation and/or the secondary route information change, external private wire network is modified
The route forwarding table of pass.
7. according to the method described in claim 6, wherein, the method also includes:
Health detection is carried out to physics special line by the external private line gateway.
8. a kind of device for network communication is applied to external private line gateway, comprising:
First receiving unit is configured to receive the VXLAN data message from virtual private cloud router；
Resolution unit is configured in response to detect that the purpose IP address of the outer layer of the VXLAN data message is described outer
The IP address of portion's private line gateway, and the target MAC (Media Access Control) address of the internal layer of the VXLAN data message is the external private line gateway
MAC Address parses the VXLAN data message；
First transmission unit is configured to the VXLAN data after parsing according to the route forwarding table of the external private line gateway
Message is sent to the gateway of user network by physics special line.
9. device according to claim 8, wherein described device further include:
Second receiving unit is configured to receive the data packet of the gateway from the user network；
Query unit is configured to search the next hop information in the route forwarding table；
First encapsulation unit is configured to that the data envelope is dressed up VXLAN data message according to the next hop information；
Second transmission unit, VXLAN data message forwarding after being configured to encapsulate to the virtual private cloud router.
10. device according to claim 8, wherein described device further include:
Third receiving unit, be configured to obtain the gateway of the user network the first routing iinformation and VPN instance second
Routing iinformation；
Third transmission unit is configured to send private leased circuit service for first routing iinformation and the secondary route information
Device.
11. a kind of device for network communication is applied to virtual private cloud router, comprising:
4th receiving unit is configured to receive the data packet from virtual private cloud；
Matching unit is configured to carry out message matching to the data packet to determine next hop information；
Second encapsulation unit is configured to that the data envelope is dressed up VXLAN data message according to the next hop information；
4th transmission unit is configured to send external private line gateway for the VXLAN data message.
12. device according to claim 11, wherein the virtual private cloud router supports equivalent route forwarding；With
And
The matching unit is further configured to:
If the quantity for carrying out the next hop information that message matching obtains to the data packet is greater than 1, selected by hash algorithm
Select a next hop information.
13. a kind of device for network communication is applied to private server, comprising:
5th receiving unit, be configured to receive the gateway for the user network that external private line gateway is sent the first routing iinformation and
The secondary route information of VPN instance；
Detection unit is routed, is configured in response to detect first routing iinformation and/or secondary route information hair
Changing modifies the route forwarding table of external private line gateway.
14. device according to claim 13, wherein described device further includes health routing detection unit, is configured to:
Health detection is carried out to physics special line by the external private line gateway.
15. a kind of system for network communication, comprising:
External private line gateway is configured to receive the VXLAN data message from virtual private cloud router, in response to detecting
The purpose IP address of the outer layer of the VXLAN data message is the IP address of the external private line gateway, and the VXLAN data
The target MAC (Media Access Control) address of the internal layer of message is the MAC Address of the external private line gateway, parses the VXLAN data message, according to
The route forwarding table of the external private line gateway sends user network by physics special line for the VXLAN data message after parsing
Gateway；
Virtual private cloud router is configured to receive the data packet from virtual private cloud, carries out message to the data packet
The data envelope is dressed up VXLAN data message according to the next hop information to determine next hop information by matching, will be described
VXLAN data message is sent to external private line gateway；
The gateway of user network is configured to carry out data communication by physics special line with the external private line gateway.
16. system according to claim 15, the system also includes:
Private server is configured to receive the first routing iinformation of the gateway for the user network that the external private line gateway is sent
With the secondary route information of VPN instance, in response to detecting that first routing iinformation and/or the secondary route information occur
Variation, modifies the routing table of the virtual private cloud router.
17. a kind of electronic equipment, comprising:
One or more processors；
Storage device is stored thereon with one or more programs,
When one or more of programs are executed by one or more of processors, so that one or more of processors are real
The now method as described in any in claim 1-7.
18. a kind of computer-readable medium, is stored thereon with computer program, wherein real when described program is executed by processor
The now method as described in any in claim 1-7.
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