CN104618246A - Network topology discovery method for XEN virtualization environment - Google Patents
Network topology discovery method for XEN virtualization environment Download PDFInfo
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Abstract
The invention discloses a network topology discovery method for an XEN virtualization environment. The method is implemented through the following modules of an SNMP (Simple Network Management Protocol) access policy management module, a network node discovery module, an SMNP detection module, a virtual node discovery module and a network topology generation module. The network topology discovery method for the XEN virtualization environment can automatically discover the physical network topology of specified hosts or all hosts of different XEN pools and show the network topology of virtual machines of XEN servers. The physical network topology discovery uses the SNMP, is easy to implement and short in development cycle, has functions of network performance monitoring, network equipment configuration, network error detection and analysis and the like and facilitates expansion of a network traffic function for future adding of a network topology management functions. A virtual machine network topology generation and management function is also added to facilitate the showing of the network topology changed after physical network devices and virtual network devices are added or removed.
Description
Technical field
The present invention relates to field of cloud computer technology, specifically a kind of method for discovering network topology towards XEN virtualized environment.
Background technology
The arrival of cloud computing and large data age, Intel Virtualization Technology is made to obtain develop rapidly, but it is more complicated also to make network topology change, the management of Virtual becomes more prevalent, and present isp operator is also all unwilling to disclose the network topology of oneself, adding and deletion in addition due to network host or empty machine, needs intuitively can reflect network change really.Under these circumstances, in process virtual network managed, the discovery of physical network and virtual network topology relation is become particularly important.
Xen is an open source code virtual machine monitor, and Xen, without the need to special hardware support, just can reach high performance virtual.Xen adopts ICA agreement, is called accurate virtualized technology obtains high-performance by one, and even in some and the disagreeableness framework of traditional virtual technology extreme, Xen also has excellent performance.Xen virtual machine can in non-stop situation between multiple physical host real-time migration.Xen can on a set of physical hardware safety the multiple virtual machine of execution.
Summary of the invention
Technical assignment of the present invention is to provide a kind of method for discovering network topology towards XEN virtualized environment.
Technical assignment of the present invention realizes in the following manner, and this method adopts and realizes with lower module: the management of SNMP access strategy, and network node finds module, SMNP detecting module, and dummy node finds module and network topology generation module;
The initialization operation of whole algorithm and self-discovery work is responsible in the management of SNMP access strategy, can arrange corresponding SNMP access strategy and access border according to user's request;
Network node finds module: send SNMP request back message to the All hosts that SNMP access strategy is arranged, judge the main frame of all activities according to response situation;
SMNP detecting module: by SNMP proxy access effort scale SNMP storehouse, according to the type of the variable determination network equipment in MIB storehouse, and its information classification is stored;
Dummy node finds module: obtain network connection information by the Network Management Function in xen platform, according to Microsoft Loopback Adapter acquisition of information host information, thus find out corresponding relation;
Network topology generation module: by the result obtained SMNP detecting module, utilize the element information in IP group to find out network topology, and the topological relation that combined with virtual node module generates is aggregated into physical network under complete xen environment and virtual network topology graph of a relation.
Described network node finds that module is by sending UDP message to destination host, the port being set to by communication mode not open with this main frame communicates, the ICMP information returned is judged, if do not returned, illustrate that machine is not opened, then can not obtain the topological relation of this machine in this case.
Described network connection information is virtual switch machine information and Microsoft Loopback Adapter information.
Described element information is IP address table, IP route table and IP network is media table element information.
Variable in described MIB storehouse is that IP forwards variable and SYS device variables.
A kind of method for discovering network topology towards XEN virtualized environment of the present invention compared to the prior art, can the physical network topology relation of given host in different xen pond or whole main frame automatically be found and can be represented the network topology in xen server between virtual machine, wherein physical network topology discovery have employed snmp protocol, it realizes simple, construction cycle is short, and comprise monitoring network performance, the functions such as network errors are analyzed in configure network devices and detection, the expansion to network traffics function in network topology management function is increased after convenient, also add generation and the management function of network topology between virtual machine, the displaying after facilitating physical network device and the rear network topology of virtual network device increase deletion to change.
Accompanying drawing explanation
Accompanying drawing 1 is the virtual platform discovering network topology structure chart of the method for discovering network topology towards XEN virtualized environment.
Accompanying drawing 2 is the virtual platform security protection flow chart of the method for discovering network topology towards XEN virtualized environment.
Embodiment
Embodiment 1:
This method adopts and realizes with lower module: the management of SNMP access strategy, and network node finds module, SMNP detecting module, and dummy node finds module and network topology generation module;
The initialization operation of whole algorithm and self-discovery work is responsible in the management of SNMP access strategy, can arrange corresponding SNMP access strategy and access border according to user's request;
Network node finds module: send UDP message to the All hosts that SNMP access strategy is arranged, the port being set to by communication mode not open with this main frame communicates, the ICMP information returned is judged, if do not returned, illustrate that machine is not opened, then can not obtain the topological relation of this machine in this case.
SMNP detecting module: by SNMP proxy access effort scale SNMP storehouse, according to the type of the variable determination network equipment in MIB storehouse, and its information classification is stored;
Dummy node finds module: obtain network connection information by the Network Management Function in xen platform, according to Microsoft Loopback Adapter acquisition of information host information, thus find out corresponding relation;
Network topology generation module: by the result obtained SMNP detecting module, utilize the element information in IP group to find out network topology, and the topological relation that combined with virtual node module generates is aggregated into physical network under complete xen environment and virtual network topology graph of a relation.
Embodiment 2:
This method adopts and realizes with lower module: the management of SNMP access strategy, and network node finds module, SMNP detecting module, and dummy node finds module and network topology generation module;
The initialization operation of whole algorithm and self-discovery work is responsible in the management of SNMP access strategy, can arrange corresponding SNMP access strategy and access border according to user's request;
Network node finds module: send UDP message to the All hosts that SNMP access strategy is arranged, the port being set to by communication mode not open with this main frame communicates, the ICMP information returned is judged, if do not returned, illustrate that machine is not opened, then can not obtain the topological relation of this machine in this case.
SMNP detecting module: by SNMP proxy access effort scale SNMP storehouse, forward the type of variable and the SYS device variables determination network equipment according to the IP in MIB storehouse, and its information classification stored;
Dummy node finds module: obtain network connection information by the Network Management Function in xen platform, network connection information is virtual switch machine information and Microsoft Loopback Adapter information; According to Microsoft Loopback Adapter acquisition of information host information, thus find out corresponding relation;
Network topology generation module: by the result obtained SMNP detecting module, utilizes the element information in IP group to find out network topology, and element information is IP address table, IP route table and IP network is media table element information; And the topological relation that combined with virtual node module generates is aggregated into physical network under complete xen environment and virtual network topology graph of a relation.
By embodiment above, described those skilled in the art can be easy to realize the present invention.But should be appreciated that the present invention is not limited to above-mentioned several embodiments.On the basis of disclosed execution mode, described those skilled in the art can the different technical characteristic of combination in any, thus realizes different technical schemes.
Claims (5)
1. the method for discovering network topology towards XEN virtualized environment, it is characterized in that, the method adopts and realizes with lower module: the management of SNMP access strategy, and network node finds module, SMNP detecting module, dummy node finds module and network topology generation module;
The initialization operation of whole algorithm and self-discovery work is responsible in the management of SNMP access strategy, can arrange corresponding SNMP access strategy and access border according to user's request;
Network node finds module: send SNMP request back message to the All hosts that SNMP access strategy is arranged, judge the main frame of all activities according to response situation;
SMNP detecting module: by SNMP proxy access effort scale SNMP storehouse, according to the type of the variable determination network equipment in MIB storehouse, and its information classification is stored;
Dummy node finds module: obtain network connection information by the Network Management Function in xen platform, according to Microsoft Loopback Adapter acquisition of information host information, thus find out corresponding relation;
Network topology generation module: by the result obtained SMNP detecting module, utilize the element information in IP group to find out network topology, and the topological relation that combined with virtual node module generates is aggregated into physical network under complete xen environment and virtual network topology graph of a relation.
2. a kind of method for discovering network topology towards XEN virtualized environment according to claim 1, it is characterized in that, described network node finds that module is by sending UDP message to destination host, the port being set to by communication mode not open with this main frame communicates, the ICMP information returned is judged, if do not returned, illustrate that machine is not opened, then can not obtain the topological relation of this machine in this case.
3. a kind of method for discovering network topology towards XEN virtualized environment according to claim 1, is characterized in that, described network connection information is virtual switch machine information and Microsoft Loopback Adapter information.
4. a kind of method for discovering network topology towards XEN virtualized environment according to claim 1, is characterized in that, described element information is IP address table, IP route table and IP network is media table element information.
5. a kind of method for discovering network topology towards XEN virtualized environment according to claim 1, is characterized in that, the variable in described MIB storehouse is that IP forwards variable and SYS device variables.
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| CN105634962A (en) * | 2016-01-22 | 2016-06-01 | 北京航空航天大学 | SDN network topology generation method and device |
| CN105847300A (en) * | 2016-05-30 | 2016-08-10 | 北京琵琶行科技有限公司 | Method and device for visualizing topological structure of enterprise network boundary equipment |
| CN106489251A (en) * | 2015-12-21 | 2017-03-08 | 华为技术有限公司 | The methods, devices and systems that applied topology relation finds |
| CN106713042A (en) * | 2016-12-29 | 2017-05-24 | 中国银联股份有限公司 | Method and device for determination of network topology |
| JP2018137611A (en) * | 2017-02-22 | 2018-08-30 | 日本電信電話株式会社 | Communication method and communication system |
| CN109831318A (en) * | 2018-12-26 | 2019-05-31 | 中兴通讯股份有限公司 | A kind of system, method and server obtaining network topology |
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| CN106713042A (en) * | 2016-12-29 | 2017-05-24 | 中国银联股份有限公司 | Method and device for determination of network topology |
| CN106713042B (en) * | 2016-12-29 | 2020-05-26 | 中国银联股份有限公司 | Method and device for determining network topology |
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