CN101001257B - Link quality detection method based on address analytic protocol and correlation device and system - Google Patents
Link quality detection method based on address analytic protocol and correlation device and system Download PDFInfo
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Abstract
This invention provides a test method for link quality based on address analysis protocol, its related device and a system, which expands the address analysis protocol and records the transmission time of its request messages and the request response message so that the expanded protocol supports test to the quality of Ethernet links.
Description
Technical field
The present invention relates to the communications field, relate in particular to link-quality detection method and relevant apparatus and system based on address resolution protocol.
Background technology
Ethernet is the most general communication protocol standard that existing now local area network (LAN) adopts, and sets up in the seventies early stage.Nowadays, ethernet technology has become the de facto standard of enterprise network with high bandwidth, low price advantage, and progressively permeates to the core telecommunication network, for IP (Internet Protocol, interconnected agreement between the network) carrying, Ethernet becomes optimal selection with succinct, characteristics of high efficiency.Yet because Ethernet is positioned local area network applications at first, so network reliability, availability aspect consider lessly, lacks the testing mechanism to the ethernet link quality, as: to the monitoring of link break-make, link flapping statistics, chain-circuit time delay measurement etc.For such as networks such as communication network, bank's private network; for improving the reliability of network; often require to support many backup communication links; quality situation according to network; as performance parameters such as chain-circuit time delay, link flapping, link break-make and packet loss, between each link, network is protected in the mode of active and standby or load sharing.And, limited its application in the high network of reliability requirements such as communication network, bank's private network because Ethernet lacks the testing mechanism to the ethernet link quality.
In the prior art, to the ethernet link quality detect commonly used to be the Ping order, this order is based on TCP/IP (Transmission Control Protocol/Internet Protocol, transmission control protocol/internet protocol) ICMP in the protocol family (Internet Control Message Protocol, internet control message protocol) realizes.Its basic principle is: the A website sends icmp packet to the B website and requires the other side to respond, and after the B website was received this request, confirmation message of A website was given in loopback; If the B website is unreachable or network failure is unreachable, after the given time, the A website is not received the response message that returns, and just thinks link failure, thereby initiates the active/standby link switching protection.Use the Ping order except between test station the connectedness, can also add up transmission RTT (the RoundTrip Time of each icmp packet between A, B website, two-way time), thus, many-sided testing results such as message time delay, shake, packet loss between statistics A, B website, according to testing result, adjust the load of load sharing link.Wherein, RTT is that message sends to the B website from the A website, returns the summation of the time of A website again from the B website, shows for minimum time unit with 1ms.
But lifting along with the network security demand, (the Access Control List based on ACL has appearred, Access Control List (ACL)) and the router of fire compartment wall or main frame, this type of router and main frame are under the situation that does not have pre-configured permission exterior I CMP request message visit, it is response IC MP request message not, icmp packet can't penetrate these nodes, makes above-mentionedly, and the method for utilizing the Ping order that realizes based on the ICMP agreement that the ethernet link quality is detected can't be suitable for.
And, because icmp packet is encapsulated in the IP message and transmits, make that the protocol hierarchy of handling is dark, when detection messages quantity is gradually big, often cause the processor overload, influence the stability of website operation.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of link-quality detection method and relevant apparatus and system based on address resolution protocol, can move in all environment based on Ethernet, is not subjected to the restriction of ACL and fire compartment wall, and promotes treatment effeciency.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of link-quality detection method, comprising based on address resolution protocol:
Source host sends the address resolution request message to destination host, and the source time that presets in this request message stabs the time that this request of record sends in the field;
If source host is received the response of destination host to this request message, write down the time of reception of this response message, and read and stab this response message transmitting time that writes down in the field object time of presetting in this response message, in conjunction with the request message transmitting time, the performance parameter of reflection communication link quality is measured.
Wherein, this method further comprises:
If source host is not received the response of destination host to this request message, then report is unreachable with the communication link of destination host.
Wherein, this method further comprises:
In the time of presetting, source host is added up the message number, and the sum of address resolution request message sum that sends according to source host and the destination host address resolution request response message that receives, and the packet loss of communication link is detected.
The present invention also provides a kind of address resolution request unit, comprising: address resolution request transmitting unit, address resolution request response receiving element, link-quality detecting unit;
The address resolution request transmitting unit is used for address analysis request message is packaged, and the source time that presets in request message stabs the transmission time information of recording address analysis request message in the field, and the address resolution request message is sent to destination host;
Address resolution request response receiving element is used to receive from the response message of destination host to the address analysis request, writes down the receiving time information of this response message;
The link-quality detecting unit, be used to read address resolution request response message time of reception, and the object time of presetting in the address resolution request response message this request response message transmitting time of stabbing in the field to be write down, and, calculate the link quality performance parameter in conjunction with address analysis request transmitting time.
Wherein, this device further comprises:
The Trouble Report unit is used in the given time, if do not receive address resolution request response message, report is unreachable with the communication link of destination host.
The present invention also provides a kind of link-quality detection system based on address resolution protocol, comprising: address resolution request unit, address analyzing device;
Described address resolution request unit comprises:
The address resolution request transmitting unit is used for address analysis request message is packaged, and the source time that presets in message stabs the transmission time information of recording address analysis request message in the field, and the address resolution request message is sent to destination host;
Address resolution request response receiving element is used to receive from the response message of destination host to the address analysis request, writes down the receiving time information of this response message;
The link-quality detecting unit, be used for reading this request response message transmitting time of object time that address resolution request response message presets stabbing in the field to be write down, and address resolution request response message time of reception, and, calculate the link quality performance parameter in conjunction with address analysis request transmitting time;
The Trouble Report unit is used in the given time, if do not receive address resolution request response message, report is unreachable with the communication link of destination host;
Described address analyzing device comprises:
Address resolution request receiving element is used to receive the address resolution request message from source host, and this message is transmitted to address resolution unit;
Address resolution unit is used for local ethernet MAC Address and IP address information are left in the arp response message and this message is sent to the address resolution request-response unit;
The address resolution request-response unit is used for the request response message is fed back to source host, and stabs in the field object time of presetting in the response message of this feedback, writes down this response message transmitting time.
Below as can be seen, the present invention is by expansion ARP, the transmitting time of record ARP request message and ARP request response message, make agreement support after the expansion to the detection of ethernet link quality, and, need not the restriction of firewall-penetrating or process ACL Access Control List (ACL) because the ARP agreement only acts on Ethernet local area network (LAN) inside, therefore utilize the present invention, can under the situation of the restriction that is not subjected to ACL Access Control List (ACL) and fire compartment wall, communication link quality be detected.
Further, because the ARP agreement is between link layer and the network layer, agreement is simple, and processing procedure is succinct, needs process IP and above layer protocol to compare in prior art, has promoted treatment effeciency.
Description of drawings
Fig. 1 is the flow chart of method embodiment provided by the invention;
The structure chart of the address resolution request unit that provides in the embodiment of the invention is provided Fig. 2;
The structure chart of the address analyzing device that provides in the embodiment of the invention is provided Fig. 3;
The system construction drawing of Fig. 4 for providing in the embodiment of the invention.
Embodiment
Ethernet device uses ethernet mac (Media Access Control, the medium access control) address of 48 bytes to discern the network node of Ethernet, realizes the addressing of Ethernet message.The IP message is when using Ethernet bearing, ethernet device can't be discerned 32 IP addresses, in order to realize of the addressing of IP message based on ethernet environment, just need utilize the ARP agreement to realize mapping from purpose IP address to target MAC (Media Access Control) address, is 48 corresponding MAC Address with 32 in the local area network (LAN) for the IP address transition, whole transfer process is that a main frame sends the broadcast data packet that comprises the IP address information to destination host earlier, it is the ARP request, destination host contains IP address and MAC Address packet to this of main frame transmission then, just can realize transfer of data by two main frames of MAC Address.
Core concept of the present invention is: by expansion ARP (Address Resolution Protocol, address resolution protocol), the transmitting time of record ARP request message and ARP request response message makes agreement support after the expansion to the detection of ethernet link quality.
For making purpose of the present invention, scheme and advantage clearer, it is elaborated below in conjunction with specific embodiment and with reference to accompanying drawing.
Referring to accompanying drawing 1, the link-quality detection method based on address resolution protocol provided by the present invention, idiographic flow is as follows:
Step 101: source host sends the ARP request message to destination host, and the source time that presets in this message stabs field record message transmitting time;
Wherein, when the described source time that presets stabs to system initialization, to the field of ARP protocol extension;
Wherein, described message transmitting time value can be local high-resolution timer count value, also can be the length of a game's information that is synchronized with GPS (global positioning system) or other global clocks;
Step 102: in the section, source host judges whether to receive the ARP request response message of destination host, if receive, then enters step 103, if do not receive, then enters step 104 at the fixed time;
Step 103: the time of reception of source host recording responses message, read and stab the ARP request response message transmitting time that writes down in the field object time of presetting in the ARP request response message, ARP request message transmitting time in conjunction with writing down in the ARP request message detects communication link quality;
Wherein, when stabbing described object time of presetting, to the field of ARP protocol extension to system initialization;
Wherein, described communication link is detected, comprise statistics, but be not limited to aforementioned parameters network performance parameters such as RTT propagation delay time, unilateral transmission time delay, delay variations;
The time of supposing source host transmission ARP request message is t1, and the time that destination host sends ARP request response message is t2, and the time that source host receives ARP request response message is t3;
Wherein, the detection method of single RTT propagation delay time is as follows:
Single RTT time delay=t3-t1;
In a period of time, if sent N ARP request message, the RTT time delay of supposing i message is RTT[i], then by single RTT time delay, statistical average RTT time delay can be by the following method:
RTT average delay=∑ RTT[i]/N, wherein, i=1～N wherein;
Wherein, the detection method of unilateral transmission time delay is as follows:
The unilateral transmission time delay comprises two parts: the unilateral transmission time delay of ARP request message from the source host to the destination host; And, the unilateral transmission time delay of ARP request response message from the destination host to the source host;
Wherein, the detection method of the unilateral transmission time delay of ARP request message from the source host to the destination host is as follows:
Single unilateral transmission time delay=t2-t1;
In a period of time, sent N ARP request message if amount to, then by single unilateral transmission time delay, statistical average unilateral transmission time delay supposes that the unilateral transmission time delay of i message is: T
Monolateral[i], after total sends N message, then:
Average unilateral transmission time delay=∑ T
Monolateral[i]/N, wherein i=1～N
Wherein, be sent to the detection method of unilateral transmission time delay of source host from destination host as follows for ARP request response message:
Single unilateral transmission time delay=t3-t2;
In a period of time, sent N ARP request message if amount to, then by single unilateral transmission time delay, statistical average unilateral transmission time delay supposes that the unilateral transmission time delay of i message is: T
Monolateral[i], after total sends N message, then:
Average unilateral transmission time delay=∑ T
Monolateral[i]/N, wherein i=1～N
Wherein, the detection method of delay variation is as follows:
Delay variation is meant in the message transmissions, the difference on the propagation delay time that each message exists, and delay variation equally also can be divided into two kinds: the shake of RTT propagation delay time, unilateral transmission delay variation;
Suppose that ARP message transmissions maximum two-way time is RTT
MAX, minimum value is RTT
MIN, then:
RTT delay variation=RTT
MAX-RTT
MIN
Suppose that ARP request message one-way transmission time maximum is T
Monolateral MAX, minimum value is T
Monolateral MIN, then:
Unilateral transmission delay variation=T
Monolateral MAX-T
Monolateral MIN
Step 104: source host is not received ARP request response message in the given time, and then reporting communication link is unreachable;
Should further comprise detection based on the link-quality detection method of address resolution protocol to packet loss;
Wherein, the detection method of packet loss is as follows:
Source host is added up the message number, and is presetting within a certain period of time, if the ICMP request message that source host sends adds up to X, the ICMP response message that returns from destination host adds up to Y, then:
Packet loss=(X-Y)/X.
Referring to Fig. 2, the present invention also provides a kind of address resolution request unit, and this device comprises: address resolution request transmitting unit, address resolution request response receiving element, link-quality detecting unit, Trouble Report unit;
Wherein, address resolution request transmitting unit 201 is used for address analysis request message is packaged, and the source time that presets at message stabs the transmission time information of field record address resolution request message, and the address resolution request message is sent to destination host;
Wherein, described transmission time information is can us delicate to be unit, and its value can be a local high-resolution timer count value, also can be the length of a game's information that is synchronized with GPS or other global clocks;
Wherein, when the described source time that presets stabs to system initialization, to the field of ARP protocol extension;
Address resolution request response receiving element 202 is used to receive from the response message of destination host to the address analysis request, writes down the receiving time information of this response message;
Link-quality detecting unit 203, be used to read address resolution request response message time of reception, and this request response message transmitting time that is write down in the address resolution request response message, and, calculate the link quality performance parameter in conjunction with address analysis request transmitting time;
Wherein, this address resolution request unit also can not comprise the Trouble Report unit, does not receive address resolution request response message within the predetermined time when source host, just show and destination host between communication link unreachable.
Referring to Fig. 3, the present invention also provides an address analyzing device, and this device comprises: address resolution request receiving element, address resolution unit, address resolution request response transmitting element;
Wherein, address resolution request receiving element 301 is used to receive the address resolution request message from source host, and this message is transmitted to address resolution unit;
Wherein, address resolution unit 302 is used for local ethernet MAC Address and IP address information are left in the arp response message and this message is sent to the address resolution request-response unit;
Address resolution request-response unit 303 is used for the request response message is fed back to source host, and in the response message of feedback, stabs this response message transmitting time of record in the field object time of presetting;
Wherein, described transmission time information is can us delicate to be unit, and its value can be a local high-resolution timer count value, also can be the length of a game's information that is synchronized with GPS or other global clocks;
Wherein, when stabbing described object time of presetting, to the field of ARP protocol extension to system initialization.
Referring to Fig. 4, the present invention also provides a kind of link-quality detection system based on address resolution protocol, and this system comprises: address resolution request unit, address analyzing device;
Wherein, address resolution request unit 401 is used to send the address resolution request message, and in the request message that sends the recorded message transmitting time, receiver address analysis request response message detects and the reporting communication link fault communication link;
Wherein, this device comprises: address resolution request transmitting unit, address resolution request response receiving element, link-quality detecting unit, Trouble Report unit;
Wherein, address resolution request transmitting unit 4011 is used for address analysis request message is packaged, and the source time that presets at message stabs the transmission time information of field record address resolution request message, and the address resolution request message is sent to destination host;
Wherein, described transmission time information is can us delicate to be unit, and its value can be a local high-resolution timer count value, also can be the length of a game's information that is synchronized with GPS or other global clocks;
Wherein, when the described source time that presets stabs to system initialization, to the field of ARP protocol extension;
Address resolution request response receiving element 4012 is used to receive from the response message of destination host to the address analysis request, writes down the receiving time information of this response message;
Link-quality detecting unit 4013, be used for reading this request response message transmitting time that address resolution request response message is write down, and address resolution request response message time of reception, and, calculate the link quality performance parameter in conjunction with address analysis request transmitting time;
Wherein, this address resolution request unit also can not comprise the Trouble Report unit, does not receive address resolution request response message within the predetermined time when source host, just show and destination host between communication link unreachable;
Wherein, address analyzing device 402 is used for receiving and parse addresses analysis request message, will feed back to source host as the analysis result of request response message, and write down feedback time in response message;
This device comprises: address resolution request receiving element, address resolution unit, address resolution request response transmitting element;
Wherein, address resolution request receiving element 4021 is used to receive the address resolution request message from source host, and this message is transmitted to address resolution unit;
Wherein, address resolution unit 4022 is used for local ethernet MAC Address and IP address information are left in the arp response message and this message is sent to the address resolution request-response unit;
Address resolution request-response unit 4023 is used for the request response message is fed back to source host, and in the response message of feedback, stabs this response message transmitting time of record in the field object time of presetting;
Wherein, described transmission time information is can us delicate to be unit, and its value can be a local high-resolution timer count value, also can be the length of a game's information that is synchronized with GPS or other global clocks;
Wherein, when stabbing described object time of presetting, to the field of ARP protocol extension to system initialization.
More than a kind of link-quality detection method and relevant apparatus and system based on address resolution protocol provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. the link-quality detection method based on address resolution protocol is characterized in that, comprising:
Source host sends the address resolution request message to destination host, and the source time that presets in this request message stabs the time that this request of record sends in the field;
If source host is received the response of destination host to this request message, write down the time of reception of this response message, and read and stab this response message transmitting time that writes down in the field object time of presetting in this response message, in conjunction with the request message transmitting time, the performance parameter of reflection communication link quality is measured.
2. the link-quality detection method based on address resolution protocol according to claim 1 is characterized in that this method further comprises:
If source host is not received the response of destination host to this request message, then report is unreachable with the communication link of destination host.
3. the link-quality detection method based on address resolution protocol according to claim 1 and 2,
It is characterized in that this method further comprises:
In the time of presetting, source host is added up the message number, and the sum of address resolution request message sum that sends according to source host and the destination host address resolution request response message that receives, and the packet loss of communication link is detected.
4. address resolution request unit, its spy is, comprising: the address resolution request transmitting unit,
Address resolution request response receiving element, the link-quality detecting unit;
The address resolution request transmitting unit is used for address analysis request message is packaged, and the source time that presets in request message stabs the transmission time information of recording address analysis request message in the field, and the address resolution request message is sent to destination host;
Address resolution request response receiving element is used to receive from the response message of destination host to the address analysis request, writes down the receiving time information of this response message;
The link-quality detecting unit, be used to read address resolution request response message time of reception, and the object time of presetting in the address resolution request response message this request response message transmitting time of stabbing in the field to be write down, and, calculate the link quality performance parameter in conjunction with address analysis request transmitting time.
5. address resolution request unit according to claim 4 is characterized in that, this device further comprises:
The Trouble Report unit is used in the given time, if do not receive address resolution request response message, report is unreachable with the communication link of destination host.
6. the link-quality detection system based on address resolution protocol is characterized in that, comprising: address resolution request unit, address analyzing device;
Described address resolution request unit comprises:
The address resolution request transmitting unit is used for address analysis request message is packaged, and the source time that presets in message stabs the transmission time information of recording address analysis request message in the field, and the address resolution request message is sent to destination host;
Address resolution request response receiving element is used to receive from the response message of destination host to the address analysis request, writes down the receiving time information of this response message;
The link-quality detecting unit, be used for reading this request response message transmitting time of object time that address resolution request response message presets stabbing in the field to be write down, and address resolution request response message time of reception, and, calculate the link quality performance parameter in conjunction with address analysis request transmitting time;
The Trouble Report unit is used in the given time, if do not receive address resolution request response message, report is unreachable with the communication link of destination host;
Described address analyzing device comprises:
Address resolution request receiving element is used to receive the address resolution request message from source host, and this message is transmitted to address resolution unit;
Address resolution unit is used for local ethernet MAC Address and IP address information are left in the arp response message and this message is sent to the address resolution request-response unit;
The address resolution request-response unit is used for the request response message is fed back to source host, and stabs in the field object time of presetting in the response message of this feedback, writes down this response message transmitting time.
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| CN101771578B (en) * | 2008-12-29 | 2012-10-03 | 中国移动通信集团公司 | Network performance detection method and equipment |
| CN102035692B (en) * | 2009-09-30 | 2013-04-03 | 中兴通讯股份有限公司 | Method and device for detecting quality of link |
| CN102263672A (en) * | 2010-05-26 | 2011-11-30 | 华为技术有限公司 | Institute of electrical and electronic engineers (IEEE) 1588 link detection method, system and IEEE 1588 link device |
| CN102025635A (en) * | 2010-12-16 | 2011-04-20 | 浪潮(北京)电子信息产业有限公司 | Method and device for controlling flow of network working under full duplex model |
| CN102845022B (en) * | 2011-04-20 | 2016-08-10 | 华为技术有限公司 | Transmission quality determining method, device and transmission system |
| CN102307122B (en) * | 2011-09-06 | 2014-01-29 | 北京傲天动联技术股份有限公司 | Ethernet over Coax (EoC) link failure detection system and method |
| CN103686969B (en) * | 2013-12-24 | 2016-12-07 | 深圳市双赢伟业科技股份有限公司 | WLAN devices launches Poewr control method |
| CN104469822A (en) * | 2014-11-26 | 2015-03-25 | 大唐移动通信设备有限公司 | Testing method, base station and system |
| CN107872357B (en) * | 2016-09-27 | 2020-05-08 | 华为技术有限公司 | Method, equipment and system for measuring available bandwidth of link |
| CN108390796A (en) * | 2018-02-10 | 2018-08-10 | 盛科网络（苏州）有限公司 | A kind of latency test method and device |
| CN112511665A (en) * | 2020-12-14 | 2021-03-16 | 北京特立信电子技术股份有限公司 | Route detection method, route switching method, device, terminal and storage medium |
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