CN102137007B - Method and system for generating network topology as well as coordinator - Google Patents
Method and system for generating network topology as well as coordinator Download PDFInfo
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Abstract
The invention provides a method and system for generating network topology as well as a coordinator, belonging to the technical field of communications. The system comprises a virtualized server webmaster, the coordinator and a server. The method comprises the following steps: acquiring port parameters of a switch from a virtual machine, wherein the port parameters are acquired by the virtual machine through monitoring link layer messages of the switch; acquiring port parameters of a virtual switch (vSwitch) connected with the switch; and generating the network topology in accordance with the port parameters of the switch and the port parameters of the vSwitch. According to the embodiment of the invention, the network topology can be generated by monitoring the link layer messages of the switch and acquiring the port parameters of the vSwitch. In the embodiment of the invention, the network topology can be generated without improving the vSwitch and the switch, thus being favorable for management and facilitating data transmission of various application programs.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of network topology generation method, system, coordinator.
Background technology
Virtual machine refer to by virtual a station server be many mutual virtual machines of isolation, or by virtual multiple servers be a virtual machine, to improve the utilance of resource and to simplify system management.Existing virtual machine carries out data interaction by vSwitch (VirtualSwitch, virtual switch), and between server by setting up physical connection between network interface card and switch; Wherein, this switch can be Tor (Top-of-Rack, frame topcross is changed planes), can be also other switches.
Common vSwitch has multiple ports, with difference connecting virtual machine and switch.And common virtual machine, virtual switch manage by vCenter (virtualized server webmaster).Meanwhile, between physical network and virtual network, can coordinate by Orchestrator (coordinator).
Link discovery is the autgmentability in order to improve network and the second level discovery (Layer 2 Discovery) that arranges, for example LLDP agreement (Link Layer Discovery Protocol, linking layer is found agreement) or cdp protocol (Cisco Discovery Protocol, cisco discovery protocol) etc.Link discovery can make the node in network send message to other nodes, so that other nodes are known the existence of self.Take LLDP agreement as example, node can send to other direct-connected nodes by encapsulation such as the disposal ability of himself, management address, device identification, interface identifier.
Conventionally, need to be in control end generating network topology, so that management and application.But due to the MAC Address of existing vSwitch shielding server, so just cause the control end of virtual machine cannot obtain complete network topology.
Summary of the invention
The problem that cannot obtain complete network topology in order to solve the control end of virtual machine, the embodiment of the present invention has proposed a kind of network topology generation method, system, coordinator, and described technical scheme is as follows:
The embodiment of the present invention has proposed a kind of network topology generation method, comprising:
Obtain the port parameter of switch from virtual machine, described port parameter is that described virtual machine obtains by the link layer message of monitoring described switch;
Obtain the port parameter of the virtual switch being connected with described switch;
According to the port parameter generating network topology of the port parameter of described switch and described virtual switch.
The embodiment of the present invention has also proposed a kind of coordinator, comprising:
Receiver module, for obtain the port parameter of switch from virtual machine, described port parameter is that described virtual machine obtains by the link layer message of monitoring described switch;
Acquisition module, for obtaining the port parameter of the virtual switch being connected with described switch;
Network topology generation module, for the port parameter generating network topology of the port parameter by described switch and described virtual switch.
The embodiment of the present invention has also proposed a kind of network topology generation system, comprising: virtualized server webmaster, coordinator and server;
Described virtualized server webmaster is used for making described server to generate described virtual machine;
Described server is for generating virtual machines, the port parameter of the Receive message switch of the link layer of described virtual machine snooping switch;
Described coordinator is used for obtaining the port parameter of virtual switch from described virtualized server webmaster, and obtains the port parameter of switch, generating network topology from described virtual machine.
The beneficial effect of the technical scheme that the embodiment of the present invention provides is: the embodiment of the present invention can receive by virtual machine the message of the link layer of snooping switch, and obtains the port parameter of vSwitch, with generating network topology.In the embodiment of the present invention, without vSwitch and switch are made to improvement, can obtain the port parameter of switch and virtual switch, with generating network topology.Like this can be so that manage, and can facilitate the transfer of data of various application programs.The message of monitored link layer is made complex calculations and storage without virtual machine.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing using in embodiment be briefly described below, apparently, listed accompanying drawing is only some embodiments of the present invention below, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of first embodiment of the invention;
Fig. 2 is the schematic flow sheet of second embodiment of the invention;
Fig. 3 is the structural representation of third embodiment of the invention;
Fig. 4 is the structural representation of fifth embodiment of the invention;
Fig. 5 is the structural representation of sixth embodiment of the invention;
Fig. 6 is the structural representation of seventh embodiment of the invention;
Fig. 7 is the schematic network structure that realizes the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
First embodiment of the invention has proposed a kind of network topology generation method, and its flow process as shown in Figure 1, comprising:
Wherein, this switch can any switch of the prior art, for example frame topcross change planes (Tor).The message of this link layer can be LLDP protocol massages, also can be for other agreements, for example cdp protocol (Cisco Discovery Protocol, CISCO discovery protocol), (Extreme Discovery Protocol, the utmost point existing agreement of setting out), NDP agreement (Nortel DiscoveryProtocol, NORTEL is found agreement) etc.
The embodiment of the present invention can receive by virtual machine the message of the link layer of snooping switch, and obtains the port parameter of vSwitch, with generating network topology.In the embodiment of the present invention, without vSwitch and switch are made to improvement, can obtain the port parameter of switch and virtual switch, with generating network topology.Like this can be so that manage, and can facilitate the transfer of data of various application programs.The message of monitored link layer is made complex calculations and storage without virtual machine.
Embodiment 2
Second embodiment of the invention has proposed a kind of network topology generation method, is to improve on the basis of the first embodiment.In embodiments of the present invention, can obtain switch ports themselves parameter from virtual machine by coordinator, and obtain the port parameter of virtual switch from vCenter, with generating network topology.Its flow process as shown in Figure 2, comprising:
Step 201, Orchestrator obtain the port parameter of switch from virtual machine, described port parameter is that described virtual machine obtains by the link layer message of monitoring described switch.
If the message of link layer is LLDP protocol massages, can generates a virtual machine by vCenter, and make this virtual machine operation LLDP Daemon program (Link Layer Discovery Protocol demons).Wherein, the LLDP message that LLDP Daemon can monitored link layer.Be that described step 201 can specifically comprise:
VCenter makes server generate a virtual machine, and makes described virtual machine operation LLDP Daemon program;
Described virtual machine is monitored the LLDP protocol massages in network, to obtain the LLDP protocol massages of switch;
Described virtual machine is resolved this LLDP protocol massages, to obtain the port parameter of the switch in described LLDP protocol massages, and sends to coordinator.
Existing LLDP protocol massages, can by local device the Information encapsulation such as main ability, management address, device identification, interface identifier in LLDPDU (Link Layer Discovery Protocol Data Unit, Link Layer Discovery Protocol data cell), issue.Therefore the virtual machine in the embodiment of the present invention can be known by resolving this LLDP protocol massages the port parameter of switch.
Step 202, described Orchestrator obtain the port parameter of the virtual switch being connected with described switch.
Wherein, step 202 can specifically comprise:
Described Orchestrator sends request to vCenter, with the port parameter of acquisition request vSwitch;
The port parameter of vSwitch is sent to Orchestrator by vCenter.
Conventionally, the port parameter of virtual switch is stored in vCenter, and therefore Orchestrator can obtain by the mode sending request to vCenter the port parameter of vSwitch.
In one embodiment of the invention, can only obtain the port parameter of the uplink port of vSwitch.Uplink port refers to that vSwitch connects the port of switch.
Step 203, Orchestrator be according to the port parameter of the port parameter of vSwitch and switch, generating network topology.
Wherein, obtaining after the port parameter of the node in network, in prior art, this network topology can be generated in several ways, for example, the mode of common MIB (Management Information Base, management information bank) can be adopted.In the network topology of existing MIB mode, data object is tree hierarchy.The branch of structure tree represents the logic groups of data object; And node representative data object in branch.Can represent each branch and node with the form showing with figure by MIB browser like this.Certainly, this just illustrates, and in prior art, can be multiple according to the mode of the port parameter generating network topology of nodes, and the embodiment of the present invention is not made restriction to this.
In the embodiment of the present invention, can monitor LLDP message by the LLDP Daemon of virtual machine, without developing new application program to save development cost.Meanwhile, can obtain by vCenter the port parameter of vSwitch, to reduce the required overhead of generating network topology.
Embodiment 3
Third embodiment of the invention has proposed a kind of coordinator, and its structure as shown in Figure 3, comprising:
Network topology generation module 303, for the port parameter generating network topology of the port parameter by described switch and described virtual switch.
The embodiment of the present invention can receive by virtual machine the message of the link layer of snooping switch, and obtains the port parameter of vSwitch, with generating network topology.In the embodiment of the present invention, without vSwitch and switch are made to improvement, can obtain the port parameter of switch and virtual switch, with generating network topology.Like this can be so that management, and can facilitate the transfer of data of various application programs.The message of monitored link layer is made complex calculations and storage without virtual machine.
Embodiment 4
Fourth embodiment of the invention has proposed a kind of coordinator, is to improve on the basis of the 3rd embodiment.Coordinator comprises:
Wherein, receiver module 301 specifically can be for receiving the port parameter of the switch that described virtual machine obtains by the link layer message of Link Layer Discovery Protocol demons (LLDPDaemon) snooping switch.
Wherein, this virtual machine can generate by vCenter, and this virtual machine operation LLDP Daemon program is to monitor the LLDP protocol massages in network, to obtain the LLDP protocol massages of switch.This virtual machine can also be resolved this LLDP protocol massages, to obtain the port parameter of the switch in described LLDP protocol massages.
Wherein, acquisition module 302 specifically can be for obtaining the port parameter of the uplink port of described virtual switch from virtualized server webmaster.
Network topology generation module 303, for the port parameter generating network topology of the port parameter by described switch and described virtual switch.
In the embodiment of the present invention, can monitor LLDP message by existing LLDP Daemon, without developing new application program to save development cost.Meanwhile, can obtain by vCenter the port parameter of vSwitch, to reduce the required overhead of generating network topology.
It should be noted that: the above-mentioned the 3rd, the 4th executes example is only illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.The method that above-mentioned the 3rd, the 4th embodiment and first, second embodiment propose belongs to same design; Therefore same section repeats no more.
Embodiment 5
Fifth embodiment of the invention has proposed a kind of virtual machine, and its structure as shown in Figure 4, comprising:
Sending module 402, for described port parameter is sent to coordinator, so that described coordinator's generating network topology.
The embodiment of the present invention can receive by virtual machine the message of the link layer of snooping switch, and obtains the port parameter of vSwitch, with generating network topology.In the embodiment of the present invention, without vSwitch and switch are made to improvement, can obtain the port parameter of switch and virtual switch, with generating network topology.Like this can be so that management, and can facilitate the transfer of data of various application programs.The message of monitored link layer is made complex calculations and storage without virtual machine.
Embodiment 6
Sixth embodiment of the invention has proposed a kind of virtual machine, is to improve on the basis of the 5th embodiment, and its structure as shown in Figure 5, comprising:
Sending module 402, for described port parameter is sent to coordinator, so that described coordinator's generating network topology.
Wherein, the message of this link layer is LLDP protocol massages.Monitoring module 401 can specifically comprise:
Virtual machine in the embodiment of the present invention both can be arranged in server, or described virtual machine is arranged in outside sharing and storing device, and described outside sharing and storing device is by network connection service device.
In the embodiment of the present invention, can monitor LLDP message by existing LLDP Daemon, without developing new application program to save development cost.
It should be noted that: above-mentioned the 5th, the 6th embodiment is only illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.The method that above-mentioned the 5th, the 6th embodiment and first, second embodiment propose belongs to same design; Therefore same section repeats no more.
Embodiment 7
Seventh embodiment of the invention has proposed a kind of network topology generation system, and its structure can as shown in Figure 6, comprise: virtualized server webmaster 501, coordinator 502 and server 505.
In the time realizing the embodiment of the present invention, can realize by equipment as shown in Figure 7.As shown in Figure 7, comprise server 505, the switch 506 of vCenter501, Orchestrator502, operation virtual machine 503 and virtual switch 504.The server 505 that wherein moves virtual machine 503 and virtual switch 504 is connected switch 506, and vCenter501 connects this server 505, and Orchestrator502 connects respectively switch 506 and vCenter501.
Described virtualized server webmaster 501, for making server 505 generate described virtual machine 503;
Described server 505 is for generating virtual machines 503, the port parameter of the Receive message switch of the link layer of described virtual machine 503 snooping switch;
Described coordinator 502, for obtain the port parameter of virtual switch 504 from described virtualized server webmaster 501, and obtains the port parameter of switch 506, generating network topology from described virtual machine 503.
The embodiment of the present invention can receive by virtual machine the message of the link layer of snooping switch, and obtains the port parameter of vSwitch, with generating network topology.In the embodiment of the present invention, without vSwitch and switch are made to improvement, can obtain the port parameter of switch and virtual switch, with generating network topology.Like this can be so that management, and can facilitate the transfer of data of various application programs.The message of monitored link layer is made complex calculations and storage without virtual machine, is easy to increase a virtual machine in existing dummy machine system simultaneously, and therefore cost is low.
Embodiment 8
Sixth embodiment of the invention has proposed a kind of network topology generation system, is to improve on the basis of the 7th embodiment, comprising: virtualized server webmaster 501, coordinator 502 and server 505.
Described virtualized server webmaster 501, for making server 505 generate described virtual machine 503;
Described server 505 is for generating virtual machines 503, the port parameter of the Receive message switch of the link layer of described virtual machine 503 snooping switch;
Described coordinator 502, for obtain the port parameter of virtual switch from described virtualized server webmaster, and obtains the port parameter of switch, generating network topology from described virtual machine 503.
Wherein, the message of described link layer can be Link Layer Discovery Protocol message.Described virtual machine 503 specifically can be for operation Link Layer Discovery Protocol demons, with the Link Layer Discovery Protocol message of snooping switch; And resolve link layer and find that protocol massages is to obtain the port parameter of switch.
In the embodiment of the present invention, can monitor LLDP message by existing LLDP Daemon, without developing new application program to save development cost.
It should be noted that: above-mentioned the 7th, the 8th embodiment is only illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.The method that above-mentioned the 7th, the 8th embodiment and first, second embodiment propose belongs to same design; Therefore same section repeats no more.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, in the time carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. a network topology generation method, is characterized in that, comprising:
Obtain the port parameter of switch from virtual machine, described port parameter is that described virtual machine obtains by the link layer message of monitoring described switch;
Obtain the port parameter of the virtual switch being connected with described switch;
According to the port parameter generating network topology of the port parameter of described switch and described virtual switch;
Wherein, described link layer message is that linking layer is found protocol massages, the described port parameter that obtains switch from virtual machine, and described port parameter is that described virtual machine obtains by the link layer message of monitoring described switch, specifically comprises:
Obtain the port parameter of switch from described virtual machine;
Described port parameter is that described virtual machine passes through Link Layer Discovery Protocol demons, and the linking layer sending at the described switch listening to is found, after protocol massages, to resolve the port parameter of the described switch obtaining.
2. method according to claim 1, is characterized in that, described in obtain virtual switch port parameter comprise:
Obtain the port parameter of the uplink port of described virtual switch from virtualized server webmaster.
3. a coordinator, is characterized in that, comprising:
Receiver module, for obtain the port parameter of switch from virtual machine, described port parameter is that described virtual machine obtains by the link layer message of monitoring described switch;
Acquisition module, for obtaining the port parameter of the virtual switch being connected with described switch;
Network topology generation module, for the port parameter generating network topology of the port parameter by described switch and described virtual switch;
Wherein, described receiver module is specifically for the port parameter that receives the switch that described virtual machine obtains by the link layer message of Link Layer Discovery Protocol demons snooping switch.
4. coordinator according to claim 3, is characterized in that, described acquisition module is specifically for the port parameter that obtains the uplink port of described virtual switch from virtualized server webmaster.
5. a network topology generation system, is characterized in that, comprising: virtualized server webmaster, coordinator and server;
Described virtualized server webmaster is used for making described server to generate described virtual machine;
Described server is for generating virtual machines, the port parameter of the Receive message switch of the link layer of described virtual machine snooping switch;
Described coordinator is used for obtaining the port parameter of virtual switch from described virtualized server webmaster, and obtains the port parameter of switch, generating network topology from described virtual machine;
Wherein, the message of described link layer is Link Layer Discovery Protocol message; Described virtual machine, specifically for operation Link Layer Discovery Protocol demons, with the Link Layer Discovery Protocol message of snooping switch, and is resolved link layer and is found that protocol massages is to obtain the port parameter of switch.
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| CN103281206A (en) * | 2013-05-29 | 2013-09-04 | 新浪网技术(中国)有限公司 | System, method and device for determining connected relation |
| CN103281248B (en) * | 2013-06-09 | 2016-03-30 | 北京星网锐捷网络技术有限公司 | The discover method of network topology, device and system |
| CN103716222B (en) * | 2013-12-31 | 2017-11-03 | 曙光云计算集团有限公司 | The collocation method of virtual switch |
| CN105227419B (en) * | 2014-06-13 | 2019-03-15 | 杭州迪普科技股份有限公司 | Machinery of consultation and consulting device based on VEM |
| CN105207909B (en) * | 2014-06-24 | 2019-02-12 | 华为技术有限公司 | A kind of method and network equipment sending information |
| US10419365B2 (en) | 2015-04-20 | 2019-09-17 | Hillstone Networks Corp. | Service insertion in basic virtual network environment |
| WO2017107018A1 (en) * | 2015-12-21 | 2017-06-29 | 华为技术有限公司 | Method, device, and system for discovering the relationship of applied topology |
| US20170279676A1 (en) * | 2016-03-22 | 2017-09-28 | Futurewei Technologies, Inc. | Topology-based virtual switching model with pluggable flow management protocols |
| CN106789321A (en) * | 2017-01-04 | 2017-05-31 | 深圳市国电科技通信有限公司 | A kind of route networking performance estimating method and its device based on open interconnection standard |
| CN108429637B (en) * | 2018-02-05 | 2021-05-07 | 国电南瑞科技股份有限公司 | System and method for dynamically detecting process layer network topology of intelligent substation |
| CN108833179A (en) * | 2018-06-25 | 2018-11-16 | 郑州云海信息技术有限公司 | A kind of generation method and device of mainframe network topology |
| CN112039693B (en) * | 2020-08-17 | 2021-06-29 | 烽火通信科技股份有限公司 | System and method for managing home networking network topology |
| CN112398738B (en) * | 2020-11-05 | 2022-06-28 | 竞技世界（北京）网络技术有限公司 | Method and device for acquiring connection relation, equipment and computer readable storage medium |
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