CN100496021C - Method and apparatus for obtaining transmission characteristics between nodes based on Ether network - Google Patents
Method and apparatus for obtaining transmission characteristics between nodes based on Ether network Download PDFInfo
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- CN100496021C CN100496021C CNB2005101258806A CN200510125880A CN100496021C CN 100496021 C CN100496021 C CN 100496021C CN B2005101258806 A CNB2005101258806 A CN B2005101258806A CN 200510125880 A CN200510125880 A CN 200510125880A CN 100496021 C CN100496021 C CN 100496021C
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Abstract
Receiving data containing feature frame, and user data frame, the method picks up the feature frame based on condition code. Analyzing and picking up information in content of frame, the method sends the request frame to rebound module. Being rebounded to opposite terminal, the response frame is accorded with format of feature frame. Including performance information at this end and information of corresponding request frame, the feature frame is inserted to data stream from Ethernet chip. Through inner port, data generated is sent to transmission chip. Features are: based Ethernet to obtain integrated indexes of transmission performance through on line measuring (not interrupting service), the disclosed device as independent device or device embedded inside communication equipment without inference on normal communication service.
Description
Technical field
The present invention relates to transmission performance acquisition methods between network node, especially relate to based on online acquisition methods of transmission performance and device between the node of Ethernet.
Background technology
Existing communication equipment, as switch, router etc., be by supporting far-end network to monitor that the ethernet management information bank of RMON (RemoteNetwork Monitoring), management information bank MIB1 (Management Information Base), management information bank MIB2 strengthens the monitoring to ethernet performance.The standardization effort of these information banks all is to be responsible for by the IETF tissue.As Fig. 1, performance index such as the flow that each communication equipment can only be monitored node separately and wrong bag.Even high-end switch or router can be realized the united net management of the Ethernet of equipment room, also can only realize the monitoring of individual index (as flow, wrong bag etc.) to a plurality of network nodes.But they all can not obtain internodal Ethernet transmission performance indicators, as indexs such as forwarding of data time delay, packet loss between node 1 and the node 2.
In the prior art, internodal transmission objective obtains instrument by special use and measures.But these obtain instrument and can only measure by interrupting service, and can only at one end obtain, need be with the transmission channel loopback.As Fig. 2, obtain instrument is obtained node 1 and node 2 at the device A place transmission characteristic, need to interrupt the business of node 1 and node 2, just can measure indexs such as transmitting time delay, packet loss.
Summary of the invention
To the objective of the invention is the above-mentioned defective that exists in the prior art in order overcoming, to have proposed a kind of based on online acquisition methods of transmission performance and device between the node of Ethernet.Described method can measure and obtain transmission performance indicators between node under the situation of non-interrupting service, described device can be embedded into communication equipment inside, also can be used as autonomous device and is inserted on the network of the connection between the communication equipment and uses.Of the present inventionly a kind ofly be achieved in that based on the online acquisition methods of transmission performance between the node of Ethernet described method comprises step:
The feature frame that comprises reception that reception comes from transmission network and the data of user data frame;
From above-mentioned data, according to the condition code in the frame format feature frame that receives to be peeled off out, remaining frame is a user data frame, sends to user interface by Ethernet chip;
By feature frame analysis module the feature frame of the reception of peeling off is out analyzed, extracted the information in the content frame, and the request of claim frame is delivered in the bounce-back module;
The bounce-back module is according to claim frame, adopt " bounce-back mechanism ", produce acknowledgement frame, described " bounce-back mechanism " is each claim frame at the opposite end, all produces the acknowledgement frame of a correspondence, " bounce-back " gives the opposite end, the acknowledgement frame that is rebounded in terms of content, has comprised the information of corresponding claim frame, and increased the transmission performance information that local terminal is produced by data analysis module, form the content of feature frame; The stem of Ethernet carries out that media interviews control MAC Address is switched or switch the IP address of IP stem and the agreement change, becomes the stem of feature frame;
Feature frame Knockdown block is assembled into complete feature frame with the claim frame of acknowledgement frame or local terminal transmission, delivers to insert module;
Insert module is inserted into from Ethernet chip the feature frame by among the next data flow of internal interface, the data that produce are sent to the transmission chip by internal interface, send to network by transport network interface then, this insert module can accurately write down the position of feature frame frame sequence in data of transmission and the time of insert waiting for, described internal interface is the connecting interface of Ethernet chip or other transmission chip, can be the Media Independent Interface MII of ieee standard, serial Media Independent Interface SMII, G bit Media Independent Interface GMII or simplify Media Independent Interface RMII.
Describedly comprise based on the online deriving means of transmission performance between the node of Ethernet:
Separation module, be used for receiving to the feature frame that comprises reception of transport network interface and the data of user data frame from the transmission chip by internal interface, from above-mentioned data, according to the condition code in the frame format feature frame that receives is peeled off out, remaining frame is a user data frame, sends to user interface by Ethernet chip;
Feature frame analysis module is used for the feature frame of peeling off is out analyzed, and extracts the information in the content frame, and the request of claim frame is delivered in the bounce-back module;
The bounce-back module, be used for content, adopt " bounce-back mechanism ", produce acknowledgement frame according to claim frame, described " bounce-back mechanism " is the content at each claim frame of opposite end, all produce the acknowledgement frame of a correspondence, " bounce-back " gives the opposite end, the acknowledgement frame that is rebounded, in terms of content, comprise the information of corresponding claim frame, and increased the transmission performance information that local terminal is produced by data analysis module, formed the content of feature frame; The stem of Ethernet carries out that media interviews control MAC Address is switched or switch the IP address of IP stem and the agreement change, becomes the stem of feature frame;
Feature frame Knockdown block, this module is connected with insert module with the bounce-back module, is used for the claim frame with acknowledgement frame or local terminal transmission, is assembled into complete feature frame, delivers to insert module;
Insert module, be used for the feature frame is inserted into Ethernet chip by among the next data flow of internal interface, the data that produce are sent to the transmission chip by internal interface, send to network by transport network interface then, this insert module can accurately write down the position of feature frame frame sequence in data of transmission and the time of insert waiting for.
Internal interface, this interface are the connecting interfaces with Ethernet chip or other transmission chip, are the Media Independent Interface MII of ieee standard, serial Media Independent Interface SMII, G bit Media Independent Interface GMII or simplify Media Independent Interface RMII.
Method advantage of the present invention is based on the measurement of (non-interrupting service) Ethernet, online and can catches complete transmission performance indicators.The application of described device in network both can be embedded into communication equipment inside, also can be used as autonomous device and was inserted between the communication equipment and uses, and be easy to use, do not influence normal communication service simultaneously.
Description of drawings
Fig. 1 is the application schematic diagram of equipment in network that can obtain the isolated node performance in the prior art;
Fig. 2 is an interrupting service in the prior art, the application schematic diagram of test instrumentation in network that the network switching performance is measured;
Fig. 3 is the application schematic diagram of device in network that obtains transmission performance between node of the present invention;
Fig. 4 is of the present invention based on the online deriving means formation of transmission performance between the node of Ethernet schematic diagram;
Fig. 5 is the frame structure schematic diagram of the feature frame among the present invention.
Embodiment
Fig. 1 is the application schematic diagram of equipment in network that can obtain the isolated node performance in the prior art.As shown in Figure 1, performance index such as each communication equipment flow that can only monitor node separately and wrong bag.Even high-end switch or router can be realized the united net management of the Ethernet of equipment room, also can only realize the monitoring of individual index (as flow, wrong bag etc.) to a plurality of network nodes.But they all can not be attained at internodal Ethernet transmission performance indicators, as indexs such as forwarding of data time delay, packet loss between node 1 and the node 2.
Fig. 2 is an interrupting service in the prior art, the application schematic diagram of test instrumentation in network that the network switching performance is measured.As shown in Figure 2, in the prior art, internodal transmission objective obtains instrument by special use and measures.But these obtain instrument and can only measure by interrupting service, and can only at one end obtain, need be with the transmission channel loopback.As Fig. 2, obtain instrument is obtained node 1 and node 2 at the device A place transmission characteristic, need to interrupt the business of node 1 and node 2, and need increase a loop newly and just can measure indexs such as transmitting time delay, packet loss.
Fig. 3 is the application schematic diagram of device in network that obtains transmission performance between node of the present invention.As shown in Figure 3, a kind of method of obtaining transmission performance indicators between node and the application schematic diagram of device in network of the present invention based on (non-interrupting service) Ethernet, online.The application class of this device in network is like Fig. 1, rough schematic view such as Fig. 3.It can be embedded into communication equipment inside, also can be used as autonomous device and is inserted between the communication equipment, is connected on the network.
Fig. 4 is of the present invention based on the online deriving means formation of transmission performance between the node of Ethernet schematic diagram.As shown in Figure 4, based on online acquisition methods of transmission performance and device between the node of Ethernet, purpose is the operate as normal that guarantees not interrupt Ethernet service, two nodes or a plurality of internodal Ethernet data transmission parameters are sampled, measured, and by statistics, computing, obtain real-time transmission performance indicators, comprise service traffics, time-delay, delay jitter, packet loss, Packet Error Rate etc.
This method and device have used a kind of feature frame (claim frame and acknowledgement frame are arranged) that comprises the ethernet format of multiple performance parameter, and designed acknowledgement mechanism fast, realize the transmission of internodal transmission performance information, thereby obtain the transmission performance parameter of passage between node.
This method and device are between original Ethernet chip and transmission chip, insert new processing module, realize online the obtaining of Ethernet transmission performance.The main differentiation of this method and existing method is: (a) support " online ", promptly do not interrupt original business, but when stopping original business, also support " off-line "; (b) complete transmission performance can be obtained, except that the performance information that comprises isolated nodes such as flow, wrong bag, the performance information between the nodes such as packet loss, time delay, peer node performance can also be obtained.In addition, this method and device are suitable for hardware to be realized, can reach the processing speed and the pinpoint accuracy of linear speed.
Internal interface is the connecting interface of Ethernet chip or other network chip, can be the MII (MediaIndependent Interface) of ieee standard, SMII (serial Media Independent Interface), GMII (G bit Media Independent Interface) or RMII (simplifying Media Independent Interface).
This method and device on the basis of receiving subscriber data frame, preferentially insert the feature frame by " insert module ", form data flow, send on the transmission network by the transmission chip.When hardware was realized, its time of inserting operation consumption can accurately measure.
Of the present inventionly a kind ofly be achieved in that based on the online acquisition methods of transmission performance between the node of Ethernet described method comprises step:
Reception is from the feature frame 4 that comprises reception of transmission chip 16 and the data 5 of user data frame 6;
From above-mentioned data 5, according to the condition code in the frame format feature frame 4 that receives to be peeled off out, remaining frame is a user data frame 6, sends to user interface 7 by Ethernet chip 8;
Feature frame 4 by 13 pairs of receptions of peeling off out of feature frame analysis module is analyzed, and extracts the information in the content frame, and the request of claim frame is delivered in the bounce-back module 11;
Bounce-back module 11 is according to claim frame, adopt " bounce-back mechanism ", produce acknowledgement frame, described " bounce-back mechanism " is each claim frame at the opposite end, all produces the acknowledgement frame of a correspondence, " bounce-back " gives the opposite end, the acknowledgement frame that is rebounded in terms of content, has comprised the information of corresponding claim frame, and increased local terminal by the transmission performance information that data analysis module 12 produces, form the content of feature frame; The stem of Ethernet carries out that media interviews control MAC Address is switched or switch the IP address of IP stem and the agreement change, becomes the stem of feature frame;
Feature frame Knockdown block 10 is assembled into complete feature frame 3 with the claim frame of acknowledgement frame or local terminal transmission, delivers to insert module;
Insert module 9 is inserted into feature frame 3 among the data 1 of Ethernet chip 8 by internal interface 15, the data 2 that produce are sent to transmission chip 16 by internal interface 15, send to network by transport network interface 17 then, this insert module can accurately write down the position of feature frame 3 frame sequence in data 2 of transmission and the time of insert waiting for, described internal interface 15 is to transmit the connecting interface of chip 16 with Ethernet chip 8 or other, can be the Media Independent Interface MII of ieee standard, serial Media Independent Interface SMII, G bit Media Independent Interface GMII or simplify Media Independent Interface RMII.
Describedly comprise based on the online deriving means of transmission performance between the node of Ethernet:
Separation module, be used for receiving to the feature frame 4 that comprises reception of transport network interface 17 and the data 5 of user data frame 6 from transmission chip 16 by internal interface 15, from above-mentioned data 5, according to the condition code in the frame format feature frame 4 is peeled off out, remaining frame is a user data frame 6, sends to user interface 7 by Ethernet chip 8;
Feature frame analysis module 13 is used for the feature frame 4 of the reception of peeling off is out analyzed, and extracts the information in the content frame, and the request of claim frame is delivered in the bounce-back module 11;
Bounce-back module 11, be used for content, adopt " bounce-back mechanism ", produce acknowledgement frame according to claim frame, described " bounce-back mechanism " is the content at each claim frame of opposite end, all produce the acknowledgement frame of a correspondence, " bounce-back " gives the opposite end, the acknowledgement frame that is rebounded, in terms of content, comprised the information of corresponding claim frame, and increased local terminal, formed the content of the feature frame that sends by the transmission performance information that data analysis module 12 produces; The stem of Ethernet carries out that media interviews control MAC Address is switched or switch the IP address of IP stem and the agreement change, becomes the stem of feature frame;
Feature frame Knockdown block 10, this module is connected with insert module 9 with bounce-back module 11, is used for the claim frame with acknowledgement frame or local terminal transmission, is assembled into complete feature frame 3, delivers to insert module 9;
Insert module 9, the feature frame 3 that is used for sending is inserted among the data 1 of Ethernet chip 8 by internal interface 15, and the data 2 of generation are sent to transmission chip 16 by internal interface 15, send to network by transport network interface 17 then.This insert module can accurately write down the position of feature frame frame sequence in data 2 of transmission and the time of insert waiting for.
Data analysis module 12, this module with the bounce-back module 11 carry out bidirectional data transfers, be used for transmission performance information according to local terminal and opposite end, this insert module can accurately write down the position of feature frame 3 frame sequence in data 2 of transmission and the time of insert waiting for, calculate the performance of transmission network, offer bounce-back module 11.
Internal interface 15, this interface are the connecting interfaces with Ethernet chip 8 or other transmission chip 16, can be Media Independent Interface MII, serial Media Independent Interface SMII, the G bit Media Independent Interface GMII of ieee standard or simplify Media Independent Interface RMII.
Fig. 5 is the frame structure schematic diagram of the feature frame among the present invention.As shown in Figure 5, the frame structure of the feature frame among the present invention comprises:
The ethernet frame stem of standard, condition code, number of frames, frame type, packet loss parameter, delay parameter, flow parameter, local other parameter, extend information and verification.
The feature frame can pass through ethernet network (or IP network), but can rely on condition code (condition code can be Ethernet or IP address) and normal frames to distinguish, and type can be divided into claim frame and acknowledgement frame.It can carry network index parameters such as time delay, flow, packet loss.Fig. 5 is the example of this form, and other parameter of this locality wherein can comprise information such as physical connection state, network management information, intercommunication information, and the form of frame is including but not limited to top each parameter and arrangement thereof.
In sum, the above only is a preferred implementation of the present invention, should be understood that, for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvement and distortion, for example, the variation that puts in order of number of frames, frame type, packet loss parameter, delay parameter etc.These improvement and distortion also should be considered as falling into protection scope of the present invention.
Claims (6)
1, based on the online acquisition methods of transmission performance between the node of Ethernet, it is characterized in that described method comprises step:
Reception is from the feature frame (4) that comprises reception that comes up of transmission chip (16) and the data (5) of user data frame (6);
From above-mentioned data (5), according to the condition code in the frame format feature frame (4) that receives to be peeled off out, remaining frame is user data frame (6), user data frame (6) sends to user interface (7) by Ethernet chip (8);
By feature frame analysis module (13) the feature frame (4) of the reception of peeling off is out analyzed, extracted the information in the content frame, and the request of claim frame is delivered in the bounce-back module (11);
Bounce-back module (11) is according to claim frame, adopt " bounce-back mechanism ", produce acknowledgement frame, described " bounce-back mechanism " is each claim frame at the opposite end, all produces the acknowledgement frame of a correspondence, " bounce-back " gives the opposite end, the acknowledgement frame that is rebounded in terms of content, has comprised the information of corresponding claim frame, and increased the transmission performance information that local terminal is produced by data analysis module (12), form the content of feature frame; The stem of Ethernet carries out that media interviews control MAC Address is switched or switch the IP address of IP stem and the agreement change, becomes the stem of feature frame;
Feature frame Knockdown block (10) will comprise the acknowledgement frame of stem and content or the claim frame that local terminal sends, and increase check byte, be assembled into the feature frame (3) of complete transmission, deliver to insert module (9);
Insert module (9) is inserted into from Ethernet chip (8) the feature frame (3) that sends by among the next data (1) of internal interface (15), the data (3) that produce are sent to transmission chip (16) by internal interface (15), send to network by transport network interface (17) then, this insert module accurately writes down the position of feature frame (3) frame sequence in data (2) of transmission and the time of insert waiting for, described internal interface (15) is the connecting interface of Ethernet chip (8) or other transmission chip (16).
2, according to claim 1 based on the online acquisition methods of transmission performance between the node of Ethernet, it is characterized in that, described internal interface (15) is the Media Independent Interface MII of ieee standard, serial Media Independent Interface SMII, G bit Media Independent Interface GMII or simplify Media Independent Interface RMII.
3, according to claim 1 or 2 based on the online acquisition methods of transmission performance between the node of Ethernet, it is characterized in that the frame structure of described feature frame comprises:
The ethernet frame stem of standard, condition code, number of frames, frame type, packet loss parameter, delay parameter, flow parameter, local other parameter, extend information and verification.
4, based on the online deriving means of transmission performance between the node of Ethernet, it is characterized in that this device comprises:
Separation module, be used for receiving to the feature frame (4) that comprises reception of transport network interface (17) and the data (5) of user data frame (6) from transmission chip (16) by internal interface (15), from above-mentioned data (5), according to the condition code in the frame format feature frame (4) that receives is peeled off out, remaining frame is user data frame (6), and user data frame (6) sends to user interface (7) by Ethernet chip (8);
Feature frame analysis module (13) is used for the feature frame (4) of the reception of peeling off is out analyzed, and extracts the information in the content frame, and the request of claim frame is delivered in the bounce-back module (11);
Bounce-back module (11), be used for content according to claim frame, adopt " bounce-back mechanism ", produce acknowledgement frame, described " bounce-back mechanism " is the content at each claim frame of opposite end, all produce the acknowledgement frame of a correspondence, " bounce-back " gives the opposite end, the acknowledgement frame that is rebounded in terms of content, has comprised the information of corresponding claim frame, and increased the transmission performance information that local terminal is produced by data analysis module (12), described data analysis module (12) carries out bidirectional data transfers with bounce-back module (11), and the stem of Ethernet is carried out media interviews control MAC Address and switched, perhaps switch and the agreement change IP address of IP stem, becomes the stem of feature frame;
Feature frame Knockdown block (10), this module is connected with insert module (9) with bounce-back module (11), is used for the claim frame with acknowledgement frame or local terminal transmission, is assembled into the feature frame (3) of complete transmission, delivers to insert module (9);
Insert module (9), the feature frame (3) that is used for sending is inserted into from Ethernet chip (8) by among the next data (1) of internal interface (15), the data (2) that produce are sent to transmission chip (16) by internal interface (15), send to network by transport network interface (17) then;
Internal interface (15), this interface are to transmit the connecting interface of chip (16) with Ethernet chip (8) or other.
5, according to claim 4 based on the online deriving means of transmission performance between the node of Ethernet, it is characterized in that, described internal interface (15) is the Media Independent Interface MII of ieee standard, serial Media Independent Interface SMII, G bit Media Independent Interface GMII or simplify Media Independent Interface RMII.
6, according to claim 4 or 5 based on the online deriving means of transmission performance between the node of Ethernet, it is characterized in that the frame structure of described feature frame comprises:
The ethernet frame stem of standard, condition code, number of frames, frame type, packet loss parameter, delay parameter, flow parameter, local other parameter, extend information and verification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101258806A CN100496021C (en) | 2005-12-02 | 2005-12-02 | Method and apparatus for obtaining transmission characteristics between nodes based on Ether network |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101258806A CN100496021C (en) | 2005-12-02 | 2005-12-02 | Method and apparatus for obtaining transmission characteristics between nodes based on Ether network |
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| CN1980181A CN1980181A (en) | 2007-06-13 |
| CN100496021C true CN100496021C (en) | 2009-06-03 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101645809B (en) * | 2009-09-10 | 2011-07-06 | 杭州华三通信技术有限公司 | Throughput testing method and system for multi-terminal network |
| CN102136968B (en) * | 2011-01-07 | 2013-04-24 | 华为技术有限公司 | Method for measuring delay of message in Ethernet switching equipment and Ethernet switching equipment |
| CN105119691B (en) * | 2015-07-21 | 2018-08-24 | 中国航天科工集团第三研究院第八三五七研究所 | A kind of method of Ethernet point-to-point transmitting |
| CN109189711B (en) * | 2018-08-07 | 2020-04-28 | 南京磐能电力科技股份有限公司 | Serial console interface based on Ethernet and application method thereof |
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