CN101834798A - System discovery method for switching equipment in local area network - Google Patents
System discovery method for switching equipment in local area network Download PDFInfo
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Abstract
The invention relates to a system discovery method for switching equipment in a local area network, which is used for discovering and managing network equipment in the local area network. The method comprises the following steps that: (1) a management machine sends a message to the switching equipment; (2) the management machine establishes a switching equipment table; (3) after receiving the message, the switching equipment executes the following flows: (C1) feeding back personal equipment information to the management machine, (C2) emptying message contents, filling the personal equipment information into the message and then forwarding the message to other switching equipment, and (C3) repeating the starting step (C1) after other switching equipment receives the message; and (4) after receiving the feedback message, the management machine fills all the switching equipment information into the switching equipment table. The system discovery method for the switching equipment in the local area network saves equipment resources, can totally stop rubbish message produced by centralized management, and can timely respond an accurate equipment connection order and a current network environment.
Description
(1) technical field
The present invention relates to a kind of system discovery method of the network equipment, especially relate to the system discovery method of switching equipment in a kind of local area network (LAN), be used for finding and managing the network equipment of local area network (LAN).
(2) background technology
Fast-developing and application along with local area network (LAN), the quantity of the switching equipment in the local area network (LAN) is also more and more, the equipment control mode of point-to-point formula has not more and more adapted to the regulatory requirement of administrative staff to switching equipment, therefore the centralized management of local net exchange equipment is arisen at the historic moment, and occupied the leading position of switch equipment managing, and obtained popularization and application very widely with very fast speed.
Discover method to switching equipment in the existing centralization is broadly divided into two types: first kind is foolproof heuristic, be meant that a kind of specific bag of seeking of transmission that all switching equipment in the local area network (LAN) can not stop goes to seek the existence whether supervisor is arranged in the local area network (LAN) after startup, if seek the existence of supervisor, just begin to carry out data interaction with supervisor, and the active state of continual monitor management machine, if seek the existence less than supervisor, that then continues not stop seeks; Second kind is device discovery equipment method, be meant and in local area network (LAN), specify a switching equipment in advance as the information gathering machine, and tell all switching equipment this message, the information with oneself that can not stop after switching equipment starts sends to preassigned that station information gathering machine, the information that the information gathering machine then can be collected all is carried out preliminary treatment and preservation, like this, as long as supervisor connects the information that this station information gathering machine just can obtain all switching equipment afterwards that goes up.
From the above, the system discovery method of existing local net exchange equipment all is based on active that all switching equipment do not stop and sends and seek that bag or packets of information realize, should this this two kinds of ways all require switching equipment in the process of operation, all will reserve the next packet that initiatively sends of a part of performance, so not only greatly wasted valuable device resource, be full of in the middle of network but also can in the time outside supervisor connects, produce a large amount of rubbish messages, and because supervisor is in passive information processing status all the time, therefore when network environment changes, supervisor can not be made a response immediately, makes supervisor can't react the correct equipment order of connection and current network environment probably really.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of can save device resource and can stop to produce the rubbish message fully because of centralized management and can in time react the correct equipment order of connection and a kind of local area network (LAN) of current network environment in the switching equipment system discovery method.
The object of the present invention is achieved like this: the system discovery method of switching equipment in a kind of local area network (LAN), and it finds that step is:
(1) supervisor specifies one or more IP address on or the card of throwing the net to send the KEY_PATH_FIND message as the source data packet address to switching equipment on this machine more;
(2) supervisor is set up a switch device table in inside after starting;
(3) switching equipment is carried out following flow process after receiving the KEY_PATH_FIND message:
(C1) switching equipment is inserted the device numbering of oneself in the destination device numbering after receiving the KEY_PATH_FIND message, will receive the message port numbers and insert in the reception message port numbers, and this KEY_PATH_FIND feedback message is fed back to supervisor;
(C2) this switching equipment sends after the KEY_PATH_FIND feedback message, the content in the KEY_PATH_FIND message is emptied, and the facility information of oneself is inserted in the message, subsequently this message is transmitted to other switch devices;
(C3) other switching equipment all can repeat to begin step (C1) after receiving the KEY_PATH_FIND message;
(4) supervisor is inserted all switch device information in the switch device table after receiving the KEY_PATH_FIND feedback message of switch device, and after receive at every turn KEY_PATH_FIND feed back message after in message contained facility information and the facility information in the switch device table compare;
(5) when supervisor finds that facility information contained in the feedback message is consistent with information in the switch device table, begin repeating step (1);
(6) when supervisor is found facility information contained in the feedback message and the information inconsistency in the switch device table, the information in the switch device table is upgraded, and then repeating step (1);
(7) in the above-mentioned steps (6) the switch device table is upgraded, the update method step that is adopted is:
(A1) when supervisor is found not exist in the facility information switch device table contained in the feedback message, this facility information is added into switching equipment table;
(A2) when the facility information in the supervisor discovery switch device table does not all exist in all feedback messages, supervisor inquires for specially IS_ALIVE message of this switch device transmission;
(A3) when switch device has been replied the IS_ALIVE message, supervisor thinks that then the information of current collection is imperfect, the switch device table is not upgraded;
(A4) when not having switch device to reply the IS_ALIVE message, supervisor thinks that then this equipment has been moved out of network environment, and safeguards the switch device table with current information updating of collecting.
The system discovery method of a kind of local net exchange equipment of the present invention, it is characterized in that: when the supervisor in the described step (1) contains the card and when having connected a plurality of network environment of throwing the net more, can on supervisor, specify throw the net card or one or more IP address of blocking of throwing the net to carry out the message transmission as the packet source IP address more.
The system discovery method of a kind of local net exchange equipment of the present invention, it is characterized in that: the switch device table in the described step (1) includes following content: device numbering, first line of a couplet device numbering, first line of a couplet port, second line of a couplet device numbering, second line of a couplet port, facility information, and concrete form is:
| Sequence number | Device numbering | The first line of a couplet number of establishing | First line of a couplet port | The second line of a couplet number of establishing | Second line of a couplet port | Facility information |
| ??1 | ||||||
| ??2 | ||||||
| ??3 | ||||||
| ??…… |
The system discovery method of a kind of local net exchange equipment of the present invention, it is characterized in that: the information interaction in the described method between supervisor and the switching equipment adopts the message that merges management agreement, and this message is made up of conventional Ethernet head and infomational message: described infomational message comprises following field:
In the table:
Message identification: whether account for 32bit, being used for sign is to merge the management protocol massages;
Message length: account for 16bit, be used for recorded message length;
Verification and: account for 16bit, be used for the verification of message data;
Type of message: account for 8bit, be used to show exploration message or feedback message;
Message purposes: account for 8bit, be used to show the purposes of message;
Find the bag type: account for 8bit, be used to show that message belongs to initially, top or bottom;
Data content length: account for 16bit, the data message content-length;
Source device number field: account for 32bits, be used to deposit the device numbering of the switching equipment of transmitting the KEY_PATH_FIND message;
Send the message port number field: account for 16bits, be used to deposit the forwarding port numbers of the switching equipment when transmitting the KEY_PATH_FIND message;
Destination device number field: account for 32bits, be used to deposit the device numbering of the switching equipment that receives the KEY_PATH_FIND message;
Receive the message port number field: account for 16bits, the switching equipment receiving port number when being used for storage equipment reception KEY_PATH_FIND message;
Other data messages: facility information.
The invention has the beneficial effects as follows:
Compare with the system discovery method of the existing network switching equipment, the present invention is in LAN environment, initiatively send the inquiry message to all switching equipment by supervisor, and only needing the passive inquiry message to supervisor to carry out corresponding action, all switching equipment get final product, and, make supervisor can correctly reflect the equipment order of connection and current network environment all the time because supervisor inside has a switching equipment table and safeguarding information constantly.Therefore, compare with the system discovery method of the existing network switching equipment, outstanding advantage of the present invention is to allow supervisor be in leading position in whole concentrated discovery procedure, and being the passive message to supervisor, switching equipment reacts, so not only reduced the unnecessary waste of equipment performance and stopped basically and found and a large amount of rubbish message of generation because concentrate, and when network environment changes, the management function very first time makes a response, and makes supervisor can correctly reflect the equipment order of connection and current network environment all the time.
(4) description of drawings
Fig. 1 is the schematic flow sheet of discover method of the present invention.
Fig. 2 is the information transitive graph between switching equipment in the network environment of the present invention.
Fig. 3 is the information change figure behind the increase switching equipment in the network environment of the present invention.
Fig. 4 is for shifting out the information change figure behind the switching equipment in the network environment of the present invention.
(5) embodiment
Referring to Fig. 1, the present invention relates to the system discovery method of switching equipment in a kind of local area network (LAN), supervisor is computer that management system is installed in the local area network (LAN), and information response's program running is on all switching equipment, and supervisor is by obtaining the facility information of all in running order switching equipment in the local area network (LAN) with the information interaction of switching equipment.Information interaction between supervisor and the switching equipment the invention provides specific message format for convenience, and this message format includes Ethernet head and infomational message two parts.Because the form of Ethernet head belongs to known content, below in conjunction with application example emphasis descriptor content of message.
Infomational message is carried on the Ethernet head when using after, its form is a following table:
In the table:
The message identification field: account for 32 bits (bits), be used to show that this message belongs to the concentrated message of finding, do not have this sign, switching equipment is not done response;
Message length field: account for 16bits, be used to show the total length of whole infomational message;
Checksum field: be used for the verification of message data, account for 16bits;
Type of message field: be used to identify this message and belong to and explore message and still feed back message, account for 8bits, for example, explore message and can represent that the feedback message can be represented with 2 with 1;
Message purposes field: be used to represent that message is KEY_PATH_FIND message or IS_ALIVE message, account for 8bits, for example, 1 can represent the KEY_PATH_FIND message, and 2 can represent the IS_ALIVE message;
Find the bag type field: be used for expression and belong to which kind of KEY_PATH_FIND message, take 8bits, if the supervisor transmission, belong to initial package, represent with 0; Equipment sends to equipment, belongs to the top bag, represents with 1; Equipment sends to supervisor, belongs to the bottom bag, represents with 2;
Data content length field: account for 16bits, be used for the identification information content-length;
Source device number field: account for 32bits, be used to deposit the device numbering of the switching equipment of transmitting the KEY_PATH_FIND message;
Send the message port number field: account for 16bits, the forwarding port numbers when being used for storage equipment forwarding KEY_PATH_FIND message;
Destination device number field: account for 32bits, be used to deposit the device numbering of the switching equipment that receives the KEY_PATH_FIND message;
Receive the message port number field: account for 16bits, the receiving port number when being used for storage equipment reception KEY_PATH_FIND message;
Other data message fields: take length and decide on concrete data content length.Usually, be subjected to the restriction of ethernet frame length, this field is the longest can not to surpass 950 bytes: scope from 0 to 950 byte.Be used to deposit the essential information of the equipment that sends KEY_PATH_FIND feedback message, comprise the IP address of equipment, MAC Address, unit type, port number, port working state, port working pattern, port vlan configuration, the trunking configuration, port ARP information, Port Mirroring information.
The system discovery method of switching equipment in the local area network (LAN) of the present invention, it finds that step is:
(1) supervisor specifies one or more IP address on or the card of throwing the net to send the KEY_PATH_FIND message as the source data packet address on this machine more, can allow the switching equipment of the some or several local area network (LAN)s of the purposive system discovery of supervisor like this.
In this step, when supervisor sends the KEY_PATH_FIND message, can find that the bag type field is set to 0, and with source device numbering, transmission message port numbers, destination device is numbered and is received the message port numbers and all is changed to 0;
(2) supervisor can be set up a switch device table in inside after starting, and the concrete structure of this switch device table is:
| Sequence number | Device numbering | The first line of a couplet number of establishing | First line of a couplet port | The second line of a couplet number of establishing | Second line of a couplet port | Details |
| ??1 | ||||||
| ??2 | ||||||
| ??3 | ||||||
| ??…… |
Before receiving any KEY_PATH_FIND feedback message, table is empty.This table is to be used to safeguard switching equipment information, reflects the current equipment order of connection and current network environment immediately.
(3) referring to Fig. 2, switching equipment is carried out following flow process after receiving the KEY_PATH_FIND message:
(C1) the switching equipment A that links to each other with supervisor receives (device numbering of switching equipment A is 1111) behind the KEY_PATH_FIND message, the type of message of message is set to 2, and the device numbering of oneself inserted in the destination device numbering, to receive message port numbers (No. 2) and insert in the reception message port numbers, and message will be fed back to supervisor;
(C2) switching equipment A sends after the KEY_PATH_FIND feedback message, can be with the numbering of the source device in the KEY_PATH_FIND message, transmission message port numbers, destination device numbering and reception message port numbers all are changed to 0, the type of message of message is set to 1, and the device numbering of oneself inserted in the source device numbering, the port numbers that will E-Packet is inserted and is sent in the message port numbers, and message is transmitted to all working port except that No. 2 ports;
(C3) other switching equipment all can repeating step (C1) after receiving KEY_PATH_FIND top message and (C2);
(4) supervisor is inserted all switch device information in the switch device table after receiving the KEY_PATH_FIND feedback message of switch device, obtains following switch device table:
| Sequence number | Device numbering | The first line of a couplet number of establishing | First line of a couplet port | The second line of a couplet number of establishing | Second line of a couplet port | Details |
| ??1 | ??1111 | ??0000 | ??02 | ??2222 | ??10 | ??…… |
| ??2 | ??2222 | ??1111 | ??03 | ??3333 | ??11 | ??…… |
| ??3 | ??3333 | ??2222 | ??04 | ??…… | ||
| ??…… |
Table 1
And after receive KEY_PATH_FIND feedback message at every turn after in message contained facility information and the facility information in the switch device table compare;
(5) when supervisor finds that facility information contained in the feedback message is consistent with information in the switch device table, begin repeating step (1);
(6) when supervisor is found facility information contained in the feedback message and the information inconsistency in the switch device table, the information in the switch device table is upgraded, and then repeating step (1);
(7) in the above-mentioned steps (6) the switch device table is upgraded, the update method step that is adopted is:
(A1) when supervisor is found not exist in the facility information switch device table contained in the feedback message, this facility information is added into switching equipment table, as shown in Figure 3, obtains new switch device table:
| Sequence number | Device numbering | The first line of a couplet number of establishing | First line of a couplet port | The second line of a couplet number of establishing | Second line of a couplet port | Details |
| ??1 | ??1111 | ??0000 | ??02 | ??2222 | ??10 | ??…… |
| ??2 | ??1111 | ??0000 | ??02 | ??4444 | ??12 | ??…… |
| ??3 | ??2222 | ??1111 | ??03 | ??3333 | ??11 | ??…… |
| ??4 | ??4444 | ??1111 | ??05 | ??…… | ||
| ??5 | ??3333 | ??2222 | ??04 | ??…… |
| Sequence number | Device numbering | The first line of a couplet number of establishing | First line of a couplet port | The second line of a couplet number of establishing | Second line of a couplet port | Details |
| ??…… |
(A2) when the facility information in the supervisor discovery switch device table does not all exist in all feedback messages, supervisor inquires for specially IS_ALIVE message of this switch device transmission;
(A3) when switch device has been replied the IS_ALIVE message, supervisor thinks that then the information of current collection is imperfect, the switch device table is not upgraded;
(A4) when not having switch device to reply the IS_ALIVE message, supervisor thinks that then this equipment has been moved out of network environment, and safeguards the switch device table with current information updating of collecting, and as shown in Figure 4, obtains new switch device table:
| Sequence number | Device numbering | The first line of a couplet number of establishing | First line of a couplet port | The second line of a couplet number of establishing | Second line of a couplet port | Details |
| ??1 | ??1111 | ??0000 | ??02 | ??3333 | ??10 | ??…… |
| ??2 | ??3333 | ??1111 | ??04 | ??…… | ||
| ??…… |
Claims (5)
1. the system discovery method of switching equipment in the local area network (LAN), it finds that step is:
(1) supervisor specifies one or more IP address on or the card of throwing the net to send the KEY_PATH_FIND message as the source data packet address to switching equipment on this machine more;
(2) supervisor is set up a switch device table in inside after starting;
(3) switching equipment is carried out following flow process after receiving the KEY_PATH_FIND message:
(C1) switching equipment is inserted the device numbering of oneself in the destination device numbering after receiving the KEY_PATH_FIND message, will receive the message port numbers and insert in the reception message port numbers, and this KEY_PATH_FIND feedback message is fed back to supervisor;
(C2) this switching equipment sends after the KEY_PATH_FIND feedback message, the content in the KEY_PATH_FIND message is emptied, and the facility information of oneself is inserted in the message, subsequently this message is transmitted to other switch devices;
(C3) other switching equipment all can repeat to begin step (C1) after receiving the KEY_PATH_FIND message;
(4) supervisor is inserted all switch device information in the switch device table after receiving the KEY_PATH_FIND feedback message of switch device, and after receive at every turn KEY_PATH_FIND feed back message after in message contained facility information and the facility information in the switch device table compare;
(5) when supervisor finds that facility information contained in the feedback message is consistent with information in the switch device table, begin repeating step (1);
(6) when supervisor is found facility information contained in the feedback message and the information inconsistency in the switch device table, the information in the switch device table is upgraded, and then repeating step (1);
(7) in the above-mentioned steps (6) the switch device table is upgraded, the update method step that is adopted is:
(A1) when supervisor is found not exist in the facility information switch device table contained in the feedback message, this facility information is added into switching equipment table;
(A2) when the facility information in the supervisor discovery switch device table does not all exist in all feedback messages, supervisor inquires for specially IS_ALIVE message of this switch device transmission;
(A3) when switch device has been replied the IS_ALIVE message, supervisor thinks that then the information of current collection is imperfect, the switch device table is not upgraded;
(A4) when not having switch device to reply the IS_ALIVE message, supervisor thinks that then this equipment has been moved out of network environment, and safeguards the switch device table with current information updating of collecting.
2. a kind of system discovery method of local net exchange equipment according to claim 1, it is characterized in that: when the supervisor in the described step (1) contains the card and when having connected a plurality of network environment of throwing the net more, can on supervisor, specify throw the net card or one or more IP address of blocking of throwing the net to carry out the message transmission as the packet source IP address more.
3. a kind of system discovery method of local net exchange equipment as claimed in claim 1 or 2, it is characterized in that: the switch device table in the described step (1) includes following content: device numbering, first line of a couplet device numbering, first line of a couplet port, second line of a couplet device numbering, second line of a couplet port, facility information, and concrete form is:
4. a kind of system discovery method of local net exchange equipment as claimed in claim 1 or 2, it is characterized in that: the information interaction in the described method between supervisor and the switching equipment adopts the message that merges management agreement, and this message is made up of conventional Ethernet head and infomational message: described infomational message comprises following field:
In the table:
Message identification: whether account for 32bit, being used for sign is to merge the management protocol massages;
Message length: account for 16bit, be used for recorded message length;
Verification and: account for 16bit, be used for the verification of message data;
Type of message: account for 8bit, be used to show exploration message or feedback message;
Message purposes: account for 8bit, be used to show the purposes of message;
Find the bag type: account for 8bit, be used to show that message belongs to initially, top or bottom;
Data content length: account for 16bit, the data message content-length;
Source device number field: account for 32bits, be used to deposit the device numbering of the switching equipment of transmitting the KEY_PATH_FIND message;
Send the message port number field: account for 16bits, be used to deposit the forwarding port numbers of the switching equipment when transmitting the KEY_PATH_FIND message;
Destination device number field: account for 32bits, be used to deposit the device numbering of the switching equipment that receives the KEY_PATH_FIND message;
Receive the message port number field: account for 16bits, the switching equipment receiving port number when being used for storage equipment reception KEY_PATH_FIND message;
Other data messages: facility information.
5. as the system discovery method of a kind of local net exchange equipment as described in the claim 3, it is characterized in that: the information interaction in the described method between supervisor and the switching equipment adopts the message that merges management agreement, and this message is made up of conventional Ethernet head and infomational message: described infomational message comprises following field:
In the table:
Message identification: whether account for 32bit, being used for sign is to merge the management protocol massages;
Message length: account for 16bit, be used for recorded message length;
Verification and: account for 16bit, be used for the verification of message data;
Type of message: account for 8bit, be used to show exploration message or feedback message;
Message purposes: account for 8bit, be used to show the purposes of message;
Find the bag type: account for 8bit, be used to show that message belongs to initially, top or bottom;
Data content length: account for 16bit, the data message content-length;
Source device number field: account for 32bits, be used to deposit the device numbering of the switching equipment of transmitting the KEY_PATH_FIND message;
Send the message port number field: account for 16bits, be used to deposit the forwarding port numbers of the switching equipment when transmitting the KEY_PATH_FIND message;
Destination device number field: account for 32bits, be used to deposit the device numbering of the switching equipment that receives the KEY_PATH_FIND message;
Receive the message port number field: account for 16bits, the switching equipment receiving port number when being used for storage equipment reception KEY_PATH_FIND message;
Other data messages: facility information.
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| CN2010101705764A CN101834798B (en) | 2010-05-10 | 2010-05-10 | System discovery method for switching equipment in local area network |
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| CN2010101705764A CN101834798B (en) | 2010-05-10 | 2010-05-10 | System discovery method for switching equipment in local area network |
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| CN101834798B CN101834798B (en) | 2012-12-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104506370A (en) * | 2014-12-31 | 2015-04-08 | 杭州华三通信技术有限公司 | Management method and management device for non-network-management system |
| CN104518894A (en) * | 2013-09-30 | 2015-04-15 | 宁夏先锋软件有限公司 | Network switch discovery system |
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| CN101009687A (en) * | 2006-01-25 | 2007-08-01 | 北京六合万通微电子技术有限公司 | Method for the automatic device discovery in the wireless interconnection |
| CN101207514A (en) * | 2006-12-22 | 2008-06-25 | 友劲科技股份有限公司 | Network apparatus discover method |
| CN101557334A (en) * | 2008-04-08 | 2009-10-14 | 中兴通讯股份有限公司 | MPLS VPN, VPN multiple-instance user edge device and implementation method thereof |
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2010
- 2010-05-10 CN CN2010101705764A patent/CN101834798B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009687A (en) * | 2006-01-25 | 2007-08-01 | 北京六合万通微电子技术有限公司 | Method for the automatic device discovery in the wireless interconnection |
| CN101207514A (en) * | 2006-12-22 | 2008-06-25 | 友劲科技股份有限公司 | Network apparatus discover method |
| CN101557334A (en) * | 2008-04-08 | 2009-10-14 | 中兴通讯股份有限公司 | MPLS VPN, VPN multiple-instance user edge device and implementation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518894A (en) * | 2013-09-30 | 2015-04-15 | 宁夏先锋软件有限公司 | Network switch discovery system |
| CN104506370A (en) * | 2014-12-31 | 2015-04-08 | 杭州华三通信技术有限公司 | Management method and management device for non-network-management system |
| CN104506370B (en) * | 2014-12-31 | 2018-05-08 | 新华三技术有限公司 | Without network management system management method and device |
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| Publication number | Publication date |
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| CN101834798B (en) | 2012-12-05 |
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