CN103378998A - Method and device for Ethernet port loopback detection - Google Patents
Method and device for Ethernet port loopback detection Download PDFInfo
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- CN103378998A CN103378998A CN2012101291062A CN201210129106A CN103378998A CN 103378998 A CN103378998 A CN 103378998A CN 2012101291062 A CN2012101291062 A CN 2012101291062A CN 201210129106 A CN201210129106 A CN 201210129106A CN 103378998 A CN103378998 A CN 103378998A
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- 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
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- 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
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/18—Loop-free operations
Abstract
The invention relates to a method and device for Ethernet port loopback detection. The method comprises the steps that a network device sends detection messages periodically from each port; whether the received detection messages are locally sent detection messages or not is judged, and if the answer is positive, port numbers of the ports where the detection messages are sent are analyzed according to the detection messages, and links of the ports are closed; if the answer is negative, the detection messages are sent to the next network device; the device for Ethernet port loopback detection comprises a detection message sending module and a detection message receiving module. According to the method and device for Ethernet port loopback detection, the problem that a loop is formed in a network, so that the network is paralyzed is effectively solved.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of ethernet port loop detection method and device.
Background technology
In existing various networkings, because the problem of configuration error or network connection tends to cause have loop in the networking, if there is loop in the network, a network equipment is after sending message, these messages may after other network equipments are transmitted, get back to again this network equipment, and this network equipment can forward these messages that had sent itself also again, and move in circles, finally can exhaust the network bandwidth, so that link can't proper communication, can make network paralysis when serious.
Summary of the invention
The objective of the invention is, a kind of ethernet port loop detection method and device are provided, cause the problem of network paralysis to prevent network to go out ready-made ring.
The invention provides a kind of ethernet port loop detection method, said method may further comprise the steps:
The network equipment periodically sends detection messages from each port;
And judge the detection messages detection messages whether send this locality of receiving, if then from above-mentioned detection messages, parse the port numbers that sends above-mentioned detection messages, and close above-mentioned port link; Otherwise, above-mentioned detection messages is transmitted to the next network equipment.
Preferably, said method is further comprising the steps of:
The protocol type of detection messages is set for the network equipment in advance;
The network equipment generates detection messages according to above-mentioned setting.
Preferably, said method is also carried out following steps after for detection messages protocol type being set:
VLAN (Virtual Local Area Network, the VLAN) pattern of detection messages is set for the above-mentioned network equipment.
Preferably, above-mentioned detection messages comprises ethernet type, source MAC (Medium/Media Access Control, medium access control) address, port numbers and keyword message field.
Preferably, the above-mentioned network equipment also generates the loopback alarm and reports in the close port link.
Preferably, the above-mentioned network equipment is also carried out following steps simultaneously behind the close port link:
Open the port chain timer;
Whether then to judge the port chain timer, if, then open above-mentioned port link, generate simultaneously the Loopback recovery alarm and report.
Preferably, said method comes the close port link by the MAC address learning function of disabled ports; Open the port link by the MAC address learning function of enabling port.
Preferably, comprise network equipment number and port numbers in above-mentioned loopback alarm and the above-mentioned Loopback recovery alarm.
Preferably, above-mentioned detection messages is broadcast packet.
Preferably, the above-mentioned network equipment is judged the above-mentioned detection messages detection messages whether send this locality according to the source MAC field in the detection messages of receiving.
The present invention further provides a kind of ethernet port loopback detection device, comprised detection messages sending module and detection messages receiver module; Wherein,
Above-mentioned detection messages sending module is used for periodically generating detection messages, and sends from each port of the network equipment;
Above-mentioned detection messages receiver module, be used for the judgement network equipment and receive the detection messages detection messages whether send this locality, and above-mentioned detection messages be this locality send detection messages the time, from above-mentioned detection messages, parse the port numbers that sends above-mentioned detection messages, and close above-mentioned port link; Above-mentioned detection messages be not this locality send detection messages the time, above-mentioned detection messages is transmitted to the next network equipment.
Preferably, said apparatus also comprises the port chain timer and module is set,
Above-mentioned port chain timer is for the duration of closing of timing port link;
The above-mentioned module that arranges is used to the user to provide to arrange the interface of timing length of protocol type, VLAN pattern, transmission cycle and the above-mentioned port chain timer of detection messages, and preserves the user and arrange.
Preferably, above-mentioned detection messages receiver module is used for generating the loopback alarm and reporting; And behind the close port link, open above-mentioned port chain timer, and above-mentioned port chain timer then after, open above-mentioned port link, generate simultaneously the Loopback recovery alarm and report.
The present invention judges whether the network equipment loopback occurs by detection messages, and is simple to operate, and easily realizes, thereby solved effectively that network becomes to encircle and the problem that causes network paralysis.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of a part of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the preferred embodiment of detection messages transmitting portion in the ethernet port loop detection method of the present invention;
Fig. 2 is the flow chart of the preferred embodiment of detection messages receiving unit in the ethernet port loop detection method of the present invention;
Fig. 3 is the theory diagram of ethernet port loopback detection device preferred embodiment of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Ethernet port loop detection method of the present invention is divided into two parts, and one is that detection messages transmitting portion, one are the detection messages receiving unit, and below in conjunction with specific embodiment, the present invention is described in detail.
As shown in Figure 1, be the flow chart of the preferred embodiment of detection messages transmitting portion in the ethernet port loop detection method of the present invention, present embodiment specifically may further comprise the steps:
Step S001: protocol type and VLAN pattern that detection messages is set for the network equipment in advance;
Among the present invention, the VLAN pattern of detection messages is option, that is to say, detection messages can without VLAN, also can be continuous VLAN or discrete VLAN; Present embodiment hypothesis detection messages need to arrange the VLAN pattern.
Step S002: network equipment generates detection messages according to above-mentioned setting;
Among the present invention, detection messages comprises the fields such as ethernet type, source MAC, port numbers and keyword message; Wherein, source MAC is the MAC Address of network equipment CPU; And detection messages is broadcast packet.
Step S003: the loopback detection function when network equipment arrived in the transmission cycle, sends detection messages after opening from each port.
The transmission cycle that the network equipment send to detect can set in advance, and can realize by timer, such as, can be that a timing is set is 2 seconds timer, send the cycle of detection messages as the network equipment.
As shown in Figure 2, be the flow chart of the preferred embodiment of detection messages receiving unit in the ethernet port loop detection method of the present invention, present embodiment specifically may further comprise the steps:
Step S101: the network equipment receives detection messages;
Step S102: judge the whether local detection messages of sending of above-mentioned detection messages, if, execution in step S103 then; Otherwise, execution in step S107;
In this step, can judge whether local sending of detection messages by the source MAC field in the detection messages.
Step S103: from detection messages, parse the port numbers that sends above-mentioned detection messages, close above-mentioned port link, generate simultaneously the loopback alarm and report;
The present invention comes the close port link by the MAC address learning function of disabled ports;
Step S104: open the port chain timer;
The port chain timer time can set in advance, such as being set to 30 seconds etc.
Step S105: whether then to judge timer, if, execution in step S106 then; Otherwise, continue to carry out this step;
Step S106: open above-mentioned port link, generate simultaneously the Loopback recovery alarm and report end;
The present invention opens the port link by the MAC address learning function of enabling port;
Step S107: above-mentioned detection messages is transmitted to the next network equipment, finishes.
Among the present invention, include network equipment number and port numbers in loopback alarm and the above-mentioned Loopback recovery alarm, like this, behind the alarm report, the user can learn it is that loopback has occured for which port of which equipment.
As shown in Figure 3, be the theory diagram of ethernet port loopback detection device preferred embodiment of the present invention, present embodiment comprises module 01, detection messages sending module 02, detection messages receiver module 03 and port chain timer 04 is set; Wherein,
Detection messages sending module 02 is used for protocol type, VLAN pattern according to the detection messages that module 01 setting is set, generates detection messages; And when the transmission cycle arrives, detection messages each port from the network equipment is sent;
Detection messages receiver module 03 be used for to be judged the detection messages whether detection messages that the network equipment is received is sent from this locality; Above-mentioned detection messages be this locality send detection messages the time, from detection messages, parse the port numbers that sends above-mentioned detection messages, close above-mentioned port link, generate simultaneously the loopback alarm and report, and unlatching port chain timer 04, and port chain timer 04 then after, open above-mentioned port link, generate simultaneously the Loopback recovery alarm and report; Above-mentioned detection messages be not this locality send detection messages the time, above-mentioned detection messages is transmitted to the next network equipment;
Above-mentioned explanation illustrates and has described the preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of claims of the present invention.
Claims (13)
1. an ethernet port loop detection method is characterized in that, said method comprising the steps of:
The network equipment periodically sends detection messages from each port;
And judge the detection messages detection messages whether send this locality of receiving, if then from described detection messages, parse the port numbers that sends described detection messages, and close described port link; Otherwise, described detection messages is transmitted to the next network equipment.
2. method according to claim 1 is characterized in that, described method is further comprising the steps of:
The protocol type of detection messages is set for the network equipment in advance;
The network equipment generates detection messages according to described setting.
3. method according to claim 2 is characterized in that, described method is also carried out following steps after for detection messages protocol type being set:
The VLAN pattern of detection messages is set for the described network equipment.
4. method according to claim 1 is characterized in that, described detection messages comprises ethernet type, source MAC, port numbers and keyword message field.
5. method according to claim 4 is characterized in that, the described network equipment also generates the loopback alarm and reports in the close port link.
6. method according to claim 1 is characterized in that, the described network equipment is also carried out following steps simultaneously behind the close port link:
Open the port chain timer;
Whether then to judge the port chain timer, if, then open described port link, generate simultaneously the Loopback recovery alarm and report.
7. according to claim 1 or 6 described methods, it is characterized in that described method is come the close port link by the MAC address learning function of disabled ports; Open the port link by the MAC address learning function of enabling port.
8. according to claim 5 or 6 described methods, it is characterized in that, comprise network equipment number and port numbers in described loopback alarm and the described Loopback recovery alarm.
9. method according to claim 1 is characterized in that, described detection messages is broadcast packet.
10. method according to claim 4 is characterized in that, the described network equipment is judged the described detection messages detection messages whether send this locality according to the source MAC field in the detection messages of receiving.
11. an ethernet port loopback detection device is characterized in that described device comprises detection messages sending module and detection messages receiver module; Wherein,
Described detection messages sending module is used for periodically generating detection messages, and sends from each port of the network equipment;
Described detection messages receiver module, be used for the judgement network equipment and receive the detection messages detection messages whether send this locality, and described detection messages be this locality send detection messages the time, from described detection messages, parse the port numbers that sends described detection messages, and close described port link; Described detection messages be not this locality send detection messages the time, described detection messages is transmitted to the next network equipment.
12. device according to claim 11 is characterized in that, described device also comprises the port chain timer and module is set,
Described port chain timer is for the duration of closing of timing port link;
The described module that arranges is used to the user to provide to arrange the interface of timing length of protocol type, VLAN pattern, transmission cycle and the described port chain timer of detection messages, and preserves the user and arrange.
13. device according to claim 12 is characterized in that, described detection messages receiver module is used for generating the loopback alarm and reporting; And behind the close port link, open described port chain timer, and described port chain timer then after, open described port link, generate simultaneously the Loopback recovery alarm and report.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101291062A CN103378998A (en) | 2012-04-27 | 2012-04-27 | Method and device for Ethernet port loopback detection |
| PCT/CN2012/077839 WO2013159450A1 (en) | 2012-04-27 | 2012-06-29 | Ethernet port loopback detection method and apparatus |
| RU2014147780/08A RU2605494C2 (en) | 2012-04-27 | 2012-06-29 | METHOD AND DEVICE FOR DETECTING Ethernet PORTS LOOPING |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101291062A CN103378998A (en) | 2012-04-27 | 2012-04-27 | Method and device for Ethernet port loopback detection |
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| CN103378998A true CN103378998A (en) | 2013-10-30 |
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| CN2012101291062A Pending CN103378998A (en) | 2012-04-27 | 2012-04-27 | Method and device for Ethernet port loopback detection |
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| RU (1) | RU2605494C2 (en) |
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| CN104852826A (en) * | 2015-04-13 | 2015-08-19 | 北京华为数字技术有限公司 | Loop detecting method and device |
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| CN106789626A (en) * | 2017-01-12 | 2017-05-31 | 深圳市万网博通科技有限公司 | Loop self-inspection self-healing method and device |
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| US10523506B2 (en) | 2017-08-02 | 2019-12-31 | Nanning Fugui Precision Industrial Co., Ltd. | Network configuration method and network device |
| CN114567572A (en) * | 2022-04-29 | 2022-05-31 | 南京金阵微电子技术有限公司 | Network loop monitoring method, system, equipment and storage medium |
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| CN107872370A (en) * | 2017-12-27 | 2018-04-03 | 广州芯德通信科技股份有限公司 | A kind of Ethernet interface loop quick determination method |
| CN110601919A (en) * | 2019-09-12 | 2019-12-20 | 烽火通信科技股份有限公司 | Loopback detection method and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| RU2605494C2 (en) | 2016-12-20 |
| WO2013159450A1 (en) | 2013-10-31 |
| RU2014147780A (en) | 2016-06-20 |
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