CN107276800A - A kind of network traffics method for tracing and device for cloud data center - Google Patents
A kind of network traffics method for tracing and device for cloud data center Download PDFInfo
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- CN107276800A CN107276800A CN201710439695.7A CN201710439695A CN107276800A CN 107276800 A CN107276800 A CN 107276800A CN 201710439695 A CN201710439695 A CN 201710439695A CN 107276800 A CN107276800 A CN 107276800A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
-
- 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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0894—Packet rate
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/354—Switches specially adapted for specific applications for supporting virtual local area networks [VLAN]
-
- 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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention provides a kind of network traffics method for tracing and device for cloud data center, and the above method comprises the following steps：That analyzes network traffics flows to path；The network traffics are followed the trail of according to analysis result, method for tracing description reasonable in design, so that the data flow in fast track to tenant network, with reference to the analysis to bottom-layer network virtual equipment stream regulatory control then, and then lifts the efficiency of tenant network positioning problems and investigation.
Description
Technical field
The invention belongs to computer realm, more particularly to a kind of network traffics method for tracing and dress for cloud data center
Put.
Background technology
In conventional data centers, data center's front end calculating network is main by substantial amounts of two layers of access device and a small amount of
Three-layer equipment is constituted, and is traditionally the three-decker of standard.With the gradually popularization of cloud data center, in particular with recent
The growth of OpenStack communities and the fast development of correlation technique, SDN technologies are combined further close with OpenStack.It is existing
Modern OpenStack Neutron components support L2 well, L3, the technology such as DVR.More network functions will be shifted progressively
To the commercial server (server as being equipped with neutron components) equipped with specific software, the use of the network equipment is reduced, is promoted
Network automatically and flexibility.
Traditional network is different from, the most network traffics of cloud computation data center are the software by server internal
Forwarding and control are realized, after a series of virtual units and traffic management and control, purpose equipment or virtual machine is finally reached.Cause
Consider that real-time performance actual in the reasons such as route isolation, security strategy formulation, load balancing, OpenStack environment is more
Complicated, the coexisting of multiple network namespace, management and control of openvswitch flow tables etc. cause the monitoring of network traffics
And follow the trail of relatively difficult to achieve compared to legacy network and increasingly complex.
In view of problem above, the present invention proposes network traffics method for tracing, it is difficult to what is monitored for solving network traffics
Problem.
The content of the invention
The present invention provides a kind of network traffics method for tracing and device for cloud data center, to solve the above problems.
The present invention provides a kind of network traffics method for tracing for cloud data center.The above method comprises the following steps：
That analyzes network traffics flows to path；
The network traffics are followed the trail of according to analysis result.
The present invention also provides a kind of network traffics follow-up mechanism for cloud data center, including：Analytic unit and tracking
Unit, wherein, the analytic unit is connected with the tracing unit,
The analytic unit, path is flowed to for analyze network traffics；
The tracing unit, for following the trail of the network traffics according to the analysis result of the analytic unit.
Pass through following scheme：That analyzes network traffics flows to path；The network traffics are followed the trail of according to analysis result.Design
Rational method for tracing description so that the data flow in fast track to tenant network, sets with reference to bottom-layer network virtualization
The analysis of standby stream regulatory control then, and then lift the efficiency of tenant network positioning problems and investigation.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 show the network traffics method for tracing process chart for cloud data center of the embodiment of the present invention 1；
The network traffics that Fig. 2 show the embodiment of the present invention 2 follow the trail of schematic diagram；
Fig. 3 show the network traffics follow-up mechanism structure chart for cloud data center of the embodiment of the present invention 3.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Fig. 1 show the network traffics method for tracing process chart for cloud data center of the embodiment of the present invention 1, bag
Include following steps：
Step 102：That analyzes network traffics flows to path.
Step 104：The network traffics are followed the trail of according to analysis result.
Further, the path that flows to includes：One or more virtual machines are connected to integrated bridge, the integrated bridge
Forwarding monitoring is carried out to the network traffics for passing in and out the integrated bridge；
Physical bridge connects physical network, and VLAN ID is carried out to the network traffics for passing in and out the physical bridge
Conversion, so that the network traffics into physical network have VLAN ID；
The network traffics for entering physical switches by the physical network are followed the trail of, to enter other physical machines.
Wherein, the network traffics of self virtualizing machine are carried out by linux bridges, and a pair of veth pair are passed through by linux bridges
Device forwards are to integrated bridge；
Integrated bridge isolates the network traffics of different piece by identifying, and the network traffics are forwarded into Physical Network
Bridge；
The physical bridge is sent the network traffics to the physical switches by the physical network card of this physical machine.
Further, the network traffics from other physical machines are forwarded to the physical bridge by the physical network card；
The physical bridge sends the network traffics to integrated bridge；
The external Virtual LAN ID of the network traffics is converted to internal void by the integrated bridge according to stream rule
Intend LAN ID, and the network traffics are forwarded to veth pair equipment；
After the veth pair equipment removes internal virtual local area network mark, the network traffics are forwarded
To linux bridges；
The network traffics are forwarded to correspondence virtual machine by the linux bridges.
Further, the integrated bridge determines the forward-path of the network traffics by flowing rule；
The physical bridge completes the conversion of the VLAN ID by flowing rule.
Such scheme is tracked for OpenStack tenant network flows, by calculate node and network node
Middle namespace specific descriptions, then by the concrete analysis of openflow flow tables in ovs virtual interacting machine bridges, accurately
The flow direction of networking flow and rule conversion in tenant network are tracked, is the positioning row of tenant network problem in cloud computing center
Look into there is provided a kind of more quick, easily method.
The network traffics that Fig. 2 show the embodiment of the present invention 2 follow the trail of schematic diagram.
As shown in Fig. 2 Node1, Node2 are two physical machines, the cloud such as virtual network device and virtual machine is run thereon
The infrastructure component of data center.Its key function component has：
1) vm1 is that KVM virtual machines are located at node1, belongs to vlan100.
2) vm2 is that KVM virtual machines are located at node2, belongs to vlan100.
3) vm3 is that KVM virtual machines are located at node2, belongs to vlan101.
4) integrated (integration) bridges of br-int, all instance Microsoft Loopback Adapter and other virtual networks are set
It is standby to be all connected to the bridge.
5) br-phv is OVS (Open VSwitch, open virtual switch) physical bridge, for connecting physical network.
All virtual machines are all connected to same bridge br-int, and Open vSwitch by flow rule, (advise by stream
Then) specify how to forward the data for passing in and out br-int, and then realize the isolation between vlan.
The network traffics of vm1 to vm2 between same vlan are followed the trail of first：
1) vm1 network traffics enter linux bridge bridges by Microsoft Loopback Adapter tapxxx.
2) linux bridge bridges merely play network traffics forwarding capability, herein add linux bridge bridges
Be intended to network security capability.
3) network traffics are sent to br-int bridges by linux bridge bridges by a pair of veth pair equipment.
4) br-int bridges specify how to turn the data for passing in and out br-int by flow rule (stream rule)
Hair.
5) br-int isolates different port by tag, and this tag can regard internal VLAN ID as.
6) for the network traffics into br-phy, pass through flow rule and complete internal VLAN ID to outside VLAN ID
Conversion so that the data entered on physical network have correct VLAN ID.
7) network traffics are sent directly to physical switches by node1 physical network card eth1, and interchanger passes through physics
Vlan is set, and is forwarded to node2 eth1 network interface cards, is eventually arrived at vm2.
Analysis vm2 returns to vm1 network traffics：
1) flow that vm2 is returned is transmitted to br-phy bridges by node1 physical network card eth1, and br-phy bridges pass through
Patch port are directly forwarded to br-int bridges.
2) br-int bridges are changed for the flow entered from patch port according to flow rule rules, outer
Portion vlan is converted to internal vlan.
3) br-int bridges identify the veth pair being accurately sent to data corresponding to vm1 by internal vlan and set
It is standby, and internal vlan marks are removed.
4) linux bridge bridges receive the data that veth pair equipment is sent, and are sent to by tap equipment
Vm1 virtual machines.
5) vm1 virtual machines receive network flow data by Microsoft Loopback Adapter, so as to complete the transmission of data.
By analyzing the composition of various virtual network devices and analysis of being unpacked to data on flows, accomplish to data traffic
Complete analysis, analysis flow rule apparent OpenStack upper layer operation is produced by the generation of underlying virtual equipment Regulation
Influence.Go deep into Open Vswitch bottoms analysis, can obtain Open vSwitch compared with have for physical switches it is lower into
This and higher operating efficiency, a virtual switch can have tens ports to carry out connecting virtual machine, and Open vSwitch
The resource itself taken is also very small, and according to the selection flexible configuration of oneself, can carry out reception analyzing and processing to packet,
The management interface and agreement of standard, such as NetFlow, sFlow, SPAN, RSPAN are supported simultaneously.
Fig. 3 show the network traffics follow-up mechanism structure chart for cloud data center of the embodiment of the present invention 3.
As shown in figure 3, a kind of network traffics follow-up mechanism for cloud data center according to embodiments of the present invention, bag
Include：Analytic unit 302 and tracing unit 304, wherein, the analytic unit 302 is connected with the tracing unit 304,
The analytic unit 302, path is flowed to for analyze network traffics；
The tracing unit 304, for following the trail of the network traffics according to the analysis result of the analytic unit 302.
Further, the path that flows to includes：One or more virtual machines are connected to integrated bridge, the integrated bridge
Forwarding monitoring is carried out to the network traffics for passing in and out the integrated bridge；
Physical bridge connects physical network, and VLAN ID is carried out to the network traffics for passing in and out the physical bridge
Conversion, so that the network traffics into physical network have VLAN ID；
The network traffics for entering physical switches by the physical network are followed the trail of, to enter other physical machines.
Further, the path that flows to includes：Carry out the network traffics of self virtualizing machine by linux bridges, and by linux
Bridge passes through a pair of veth pair device forwards to integrated bridge；
Integrated bridge isolates the network traffics of different piece by identifying, and the network traffics are forwarded into Physical Network
Bridge；
The physical bridge is sent the network traffics to the physical switches by the physical network card of this physical machine.
Further, the path that flows to includes：Network traffics from other physical machines are turned by the physical network card
It is sent to the physical bridge；
The physical bridge sends the network traffics to integrated bridge；
The external Virtual LAN ID of the network traffics is converted to internal void by the integrated bridge according to stream rule
Intend LAN ID, and the network traffics are forwarded to veth pair equipment；
After the veth pair equipment removes internal virtual local area network mark, the network traffics are forwarded
To linux bridges；
The network traffics are forwarded to correspondence virtual machine by the linux bridges.
Wherein, the integrated bridge determines the forward-path of the network traffics by flowing rule；
The physical bridge completes the conversion of the VLAN ID by flowing rule.
Pass through following scheme：That analyzes network traffics flows to path；The network traffics are followed the trail of according to analysis result.Design
Rational method for tracing description so that the data flow in fast track to tenant network, sets with reference to bottom-layer network virtualization
The analysis of standby stream regulatory control then, and then lift the efficiency of tenant network positioning problems and investigation.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of network traffics method for tracing for cloud data center, it is characterised in that including：
That analyzes network traffics flows to path；
The network traffics are followed the trail of according to analysis result.
2. according to the method described in claim 1, it is characterised in that the path that flows to includes：One or more virtual machines connect
Integrated bridge is connected to, the integrated bridge carries out forwarding monitoring to the network traffics for passing in and out the integrated bridge；
Physical bridge connects physical network, and turning for VLAN ID is carried out to the network traffics for passing in and out the physical bridge
Change, so that the network traffics into physical network have VLAN ID；
The network traffics for entering physical switches by the physical network are followed the trail of, to enter other physical machines.
3. method according to claim 2, it is characterised in that carry out the network traffics of self virtualizing machine by linux bridges, and
A pair of veth pair device forwards to integrated bridge are passed through by linux bridges；
Integrated bridge isolates the network traffics of different piece by identifying, and the network traffics are forwarded into physical bridge；
The physical bridge is sent the network traffics to the physical switches by the physical network card of this physical machine.
4. method according to claim 2, it is characterised in that the network traffics from other physical machines pass through the physics
Network interface card is forwarded to the physical bridge；
The physical bridge sends the network traffics to integrated bridge；
The external Virtual LAN ID of the network traffics is converted to internal virtual office by the integrated bridge according to stream rule
Domain network mark is known, and the network traffics are forwarded into veth pair equipment；
After the veth pair equipment removes internal virtual local area network mark, the network traffics are forwarded to
Linux bridges；
The network traffics are forwarded to correspondence virtual machine by the linux bridges.
5. the method according to any one of claim 2 to 4, it is characterised in that the integrated bridge is by flowing rule really
The forward-path of the fixed network traffics；
The physical bridge completes the conversion of the VLAN ID by flowing rule.
6. a kind of network traffics follow-up mechanism for cloud data center, it is characterised in that including：Analytic unit and tracking are single
Member, wherein, the analytic unit is connected with the tracing unit,
The analytic unit, path is flowed to for analyze network traffics；
The tracing unit, for following the trail of the network traffics according to the analysis result of the analytic unit.
7. device according to claim 6, it is characterised in that the path that flows to includes：One or more virtual machines connect
Integrated bridge is connected to, the integrated bridge carries out forwarding monitoring to the network traffics for passing in and out the integrated bridge；
Physical bridge connects physical network, and turning for VLAN ID is carried out to the network traffics for passing in and out the physical bridge
Change, so that the network traffics into physical network have VLAN ID；
The network traffics for entering physical switches by the physical network are followed the trail of, to enter other physical machines.
8. device according to claim 7, it is characterised in that the path that flows to includes：Carry out the network flow of self virtualizing machine
Amount passes through a pair of veth pair device forwards to integrated bridge by linux bridges by linux bridges；
Integrated bridge isolates the network traffics of different piece by identifying, and the network traffics are forwarded into physical bridge；
The physical bridge is sent the network traffics to the physical switches by the physical network card of this physical machine.
9. device according to claim 7, it is characterised in that the path that flows to includes：Net from other physical machines
Network flow is forwarded to the physical bridge by the physical network card；
The physical bridge sends the network traffics to integrated bridge；
The external Virtual LAN ID of the network traffics is converted to internal virtual office by the integrated bridge according to stream rule
Domain network mark is known, and the network traffics are forwarded into veth pair equipment；
After the veth pair equipment removes internal virtual local area network mark, the network traffics are forwarded to
Linux bridges；
The network traffics are forwarded to correspondence virtual machine by the linux bridges.
10. the device according to any one of claim 7 to 9, it is characterised in that the integrated bridge is by flowing rule really
The forward-path of the fixed network traffics；
The physical bridge completes the conversion of the VLAN ID by flowing rule.
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| CN108471383A (en) * | 2018-02-08 | 2018-08-31 | 华为技术有限公司 | Message forwarding method, device and system |
| CN108599999A (en) * | 2018-04-10 | 2018-09-28 | 西安工业大学 | The network of OVS and Linux bridge is disposed in a kind of SDN new networks |
| CN110912777A (en) * | 2019-11-27 | 2020-03-24 | 杭州迪普科技股份有限公司 | Flow tracking method and device, electronic equipment and machine-readable storage medium |
| CN112398728A (en) * | 2019-08-14 | 2021-02-23 | 南京中兴新软件有限责任公司 | Smooth evolution method of virtual gateway, gateway equipment and storage medium |
| CN113300917A (en) * | 2021-07-27 | 2021-08-24 | 苏州浪潮智能科技有限公司 | Traffic monitoring method and device for Open Stack tenant network |
| CN113726637A (en) * | 2021-09-09 | 2021-11-30 | 华云数据控股集团有限公司 | Network traffic transparent transmission method and device based on cloud platform and storage medium |
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| CN108173695A (en) * | 2017-12-29 | 2018-06-15 | 深信服网络科技（深圳）有限公司 | Flow monitoring system and method in cloud environment |
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| CN112398728A (en) * | 2019-08-14 | 2021-02-23 | 南京中兴新软件有限责任公司 | Smooth evolution method of virtual gateway, gateway equipment and storage medium |
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| WO2023004992A1 (en) * | 2021-07-27 | 2023-02-02 | 苏州浪潮智能科技有限公司 | Traffic monitoring method and apparatus for open stack tenant network |
| CN113300917A (en) * | 2021-07-27 | 2021-08-24 | 苏州浪潮智能科技有限公司 | Traffic monitoring method and device for Open Stack tenant network |
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| CN113726637A (en) * | 2021-09-09 | 2021-11-30 | 华云数据控股集团有限公司 | Network traffic transparent transmission method and device based on cloud platform and storage medium |
| CN113726637B (en) * | 2021-09-09 | 2022-11-01 | 华云数据控股集团有限公司 | Network traffic transparent transmission method and device based on cloud platform and storage medium |
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Application publication date: 20171020 |