CN101047451A - Method for on-line measuring parameter of passive optical network function - Google Patents
Method for on-line measuring parameter of passive optical network function Download PDFInfo
- Publication number
- CN101047451A CN101047451A CNA200610087097XA CN200610087097A CN101047451A CN 101047451 A CN101047451 A CN 101047451A CN A200610087097X A CNA200610087097X A CN A200610087097XA CN 200610087097 A CN200610087097 A CN 200610087097A CN 101047451 A CN101047451 A CN 101047451A
- Authority
- CN
- China
- Prior art keywords
- pon
- measured message
- information
- message
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1694—Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers
Abstract
A method for on-line measuring performance parameter of passive optical network includes issuing process flow of on-line measuring PON performance parameter by OLT end of PON, inserting measurement message in information insertion end of PON and sending said message to information obtaining end of PON, obtaining said measurement message by said information obtaining end and obtaining PON performance parameter by OLT end of PON according to information of said measurement message.
Description
Technical field
The present invention relates to the EPON communications field, be meant the method for on-line measurement parameter of passive optical network function especially.
Background technology
EPON (PON) technology is the light access technology that a kind of point-to-multipoint transmits.In PON, can pull out simple optical fiber to the broadband services subarea or the office garden from service exchange, and then isolate some branch roads on each building or business device from main fiber with passive optical splitters or coupler.This mode can make a plurality of users share the relatively costly optical fiber link of this section from exchange to the user resident, thereby has also greatly reduced Fiber-To-The-Building (FTTB) and the use cost that Fiber to the home (FTTH).
PON normally comprises optical line terminal (OLT) and a plurality of optical network unit (ONU) that is positioned at the user side of user resident of the network side that is positioned at central office (CO).Described OLT realizes and being connected of each ONU by the optical distribution network (ODN) that is made of optical fiber, passive optical splitters or coupler.
Fig. 1 is the typical way schematic diagram of PON networking in the prior art.As shown in Figure 1, OLT 110 carries out information interaction with the convergence-level network, and by a plurality of ONU such as ODN 120 connection ONU 130, ONU 130 can be connected to the local network of users (CPN), and is not shown in the figures.
By adopting asynchronous transfer mode PON (APON), broadband P ON (BPON), ether PON (EPON) or G bit-level PON (GPON) technology, on the trunk optical fiber of PON, can support the speed of 155Mbit/s, 622Mbit/s, 1.25Gbit/s or 2.5Gbit/s.PON is owing to there is the advantage of high bandwidth, simultaneously support voice, data and three kinds of applied business of video.
Under the multi-services operation environment, operator has proposed requirements at the higher level to service management and detection.Clearly propose in the current techique standard (CTS) of FSAN working group (FSAN) issue, to on OLT equipment, measure every performance of user traffic flow in real time, as transmission delay (Delay), transmission delay shake (Jitter), packet loss (FLR) etc.Wherein, transmission delay is that message is from sending to time to go; The transmission delay shake comprises transmission delay mean value, maximum transmitting time delay and minimum transfer time-delay; Packet loss is the ratio of the packet receiving number and the number of giving out a contract for a project.
In the GPON system, keep synchronously by descending frame head information between OLT and the ONU, described descending frame head per second 8000 frames, every frame length is 125 microseconds.OLT and ONU have superframe counter separately respectively, are used for the control time.Described superframe counter widths is 30, and every transmission one frame adds one, and promptly per 125 microseconds (us) add one.Further, frame inside counting device separately can be set respectively also in OLT and ONU, described frame inside counting device adds one from descending frame head every a time quantum, adds one as the time counter every 1 bit or 1 byte on the circuit.
Described superframe counter and frame inside counting device are used, can obtain temporal information exactly, described temporal information T can be expressed as: T=125T
Super+ T
Inner, wherein the unit of T is a microsecond, T
SuperBe the count value in the superframe counter, T
InnerBe the count value in the frame inside counting device.
In the PON system, must keep synchronous regime between OLT and the ONU, system or the time reference of the two is consistent perhaps makes the time reference between the two differ definite difference DELTA T.Then PON transmission delay Delay can be expressed as: Delay=T (arrival)-T (transmission)+Δ T, wherein, if the time reference of OLT and ONU is consistent, then Δ T value is 0.
For measurement, in the prior art, can use traditional measurement instrument and method to realize, but need special measurement circuitry and measuring instrument as PON performance parameters such as transmission delay, transmission delay shake, packet loss.
Fig. 2 is a PON performance parameter metering system schematic diagram in the prior art.As shown in Figure 2, when carrying out the measurement of PON performance parameter, need to use the measurement instrumentations such as Smartbits of Spirent company, and need use special measurement circuit.As shown in Figure 2, described special measurement circuit comprises network side OLT end, ODN and user side ONU end, and described measurement instrumentation also needs to hold with OLT end and ONU and link to each other respectively, with the situation of this Measurement Network side and user side.Like this, carrying out above-mentioned PON performance parameter when measuring, the PON interface of network side OLT end and the PON interface and user network interface (UNI) interface of user side ONU end will be taken, and the ONU end is connected to the local network of users by uni interface, thereby when measuring, need stop customer service, can not realize on-line measurement.
In the prior art, when using special measurement circuit and apparatus measures PON performance parameter, need take network interface, as PON interface and user network interface (UNI) interface, thereby need stop customer service when measuring, it is very big to implement cost.This shows that prior art can't satisfy the requirement of online and real-time measurement PON performance parameter.
Summary of the invention
In view of this, the invention provides a kind of method of on-line measurement PON performance parameter, can realize that the online in real time of PON performance parameter is measured.
Technical scheme of the present invention is specific as follows:
The invention provides a kind of method of on-line measurement passive optical network PON performance parameter, this method may further comprise the steps:
The optical line terminal OLT end of A, PON sends to the optical network unit ONU end and opens the instruction of measuring flow process, comprises the indication parameter information of measuring in this instruction;
The information of sending to was obtained end after the information insertion end of B, PON was inserted measured message, and described information is obtained end and obtained the measured message of insertion;
The OLT end of C, PON obtains the PON measured value of parameters according to measured message information.
Wherein, measuring indication parameter described in the steps A is that measured message sends number; The information of sending to was obtained after the end after the information insertion end of the described PON of step B was inserted measured message, further comprise: the information insertion end statistics of PON has been inserted the measured message number, equal the transmission of measured message described in steps A number if inserted the measured message number, then stop to send measured message, and obtain end to the information of PON and send the message of finishing the insertion measured message; The information of PON is obtained end and is received after this message, stops to obtain measured message.
Wherein, measure indication parameter described in the steps A and also can be the measured message transmission rate; The information insertion end of the described PON of step B is inserted measured message: insert measured message according to the described measured message transmission rate of steps A; Before the described step C, further comprise: the OLT end of PON sends the instruction that stops to measure to the ONU of PON end; Described information insertion end stops to insert measured message, and described information is obtained end and stopped to obtain measured message.
When the indication parameter of measurement described in the steps A is measured message transmission number, comprise the transmission time information when this measured message is inserted in the described measured message of step B, this transmission time information is set at the payload area of measured message; The information of PON described in the step B is obtained end and is obtained after the measured message of insertion, further writes down the time of advent of described measured message; Described step C is: the OLT end of PON obtains PON transmission delay value according to the information time of advent of transmission time information in the measured message and described measured message.
Wherein, if measured message described in the steps A sends number greater than 1; The information of PON described in the step B is obtained end and is obtained after the measured message of insertion, further comprises: the measured message number that statistics has been obtained; Obtaining PON transmission delay value described in the step C, is to obtain a plurality of transmission delay values according to a plurality of measured message information; After step C, further comprise:, obtain PON transmission delay jitter value according to a plurality of transmission delay values described in measured message number of having obtained described in the step B and the step C.
Wherein, measured message described in the steps A sends number greater than 1; The information of PON described in the step B obtain the end obtain the measured message of insertion after, further comprise: add up the described measured message number of having obtained; Described step C is: the OLT end of PON sends number information according to measured message described in described measured message number information of having obtained and the steps A, obtains the PON packet loss.
In method provided by the invention, measuring indication parameter described in the steps A is that measured message is obtained the number threshold value; Further comprised before described step C: the information of PON is obtained the measured message number that the end statistics has been obtained, if the described measured message number of having obtained is obtained the number threshold value less than measured message described in the steps A, then returns execution in step A or end.
Wherein, if measured message described in the steps A is obtained the number threshold value greater than 1; Described measurement indication parameter further comprises: measured message acquisition time pocket door limit value; If the information of PON described in the step B obtain the end obtain measured message interval greater than the acquisition time of measured message described in steps A pocket door limit value, then return execution in step A or end.
In described method, the information of described PON is obtained the OLT end of end for PON, and the information insertion end of described PON is the ONU end of PON.
In described method, the information of described PON is obtained the ONU end of end for PON; The information insertion end of described PON is the OLT end of PON; Described returning before execution in step A or the end further comprises: the OLT end of the ONU end notice PON of PON.
In described method, the ONU end that described information insertion end is PON, described information is obtained the OLT end of end for PON; The parameter of PON described in the step C is that PON goes up line parameter.Insert described in the step B is to insert from PON interface or user network interface uni interface.
In described method, the OLT end that described information insertion end is PON, described information is obtained the ONU end of end for PON; The parameter of PON described in the step C is the PON downstream parameter; Before described step C, further comprise: the ONU end sends the measured message information that obtains to the OLT end.Inserting described in the step B is to insert from the PON interface.
In described method, be retrieved as described in the step B by PON media access controller MAC and obtain.
In described method, the message structure of described measured message is identical with the message structure of user's message, and comprises feature identification information in the described measured message.
Wherein, described PON is Gigabit Passive Optical Network GPON, and described feature identification information is the GEM frame head characteristic information that is arranged on GPON method for packing layer head zone.
Wherein, described feature identification information is Ethernet virtual LAN VLAN frame head characteristic information or Ethernet 802.1p priority frame head characteristic information.Target MAC (Media Access Control) address DMAC zone in the mac-layer protocol head zone of described feature identification information setting in measured message, Ethernet upper-layer protocol type Type zone or payload area.
Method by on-line measurement PON performance parameter provided by the invention, by the control of the OLT of PON end and initiate the flow process of on-line measurement PON performance parameter: the information that the information insertion end of PON is inserted measured message and sent it to PON is obtained end, obtain end by this information and obtain described measured message, the OLT end of PON can obtain the PON performance parameter according to the information of measured message, thereby has realized the purpose of online in real time Measurement Network performance parameter in PON.
Described information insertion end and information are obtained OLT end or the ONU end that end can be PON respectively, and described PON performance parameter comprises transmission delay, transmission delay shake, packet loss etc.According to On-line Measuring Method provided by the invention, not only can be and further carry out the network optimization, dilatation or quality evaluation foundation is provided, and, also reduced the measurement cost owing to need not to use special measurement circuit and equipment.
Description of drawings
Fig. 1 is the typical way schematic diagram of PON networking in the prior art;
Fig. 2 is a PON performance parameter metering system schematic diagram in the prior art;
Fig. 3 is for to carry out PON networking schematic diagram according to method provided by the invention;
Fig. 4 is according to measured message structural representation among the embodiment of method provided by the invention;
Fig. 5 is an embodiment schematic flow sheet of measuring PON uplink delay variation value according to method provided by the invention;
Fig. 6 is an embodiment schematic flow sheet of measuring the descending packet loss of PON according to method provided by the invention.
Embodiment
The invention provides a kind of method of on-line measurement PON performance parameter, by the control of the OLT of PON end and initiate the flow process of on-line measurement PON performance parameter: the information that the information insertion end of PON is inserted measured message and sent it to PON is obtained end, obtain end by this information and obtain described measured message, the OLT end of PON can obtain the PON performance parameter according to the information of measured message, can be implemented in the purpose of online in real time Measurement Network performance parameter among the PON.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 3 is for to carry out PON networking schematic diagram according to method provided by the invention.As shown in Figure 3, OLT310 carries out information interaction by Switching Module and convergence-level network, and is connected with ONU 330 by ODN 320.Compare with the typical way schematic diagram of PON networking in as shown in Figure 1 the prior art, the present invention uses media access controllers (MAC) 312 at PON side OLT 310 ends, and links to each other with ODN 320 by PON interface 311; Use MAC 332 at user side ONU 330 ends, and link to each other with ODN 320 by PON interface 331, MAC 332 also links to each other with uni interface 333.Wherein, described MAC is the protocol process module in the PON system, utilizes MAC 312 or MAC 332 to obtain measured message in the present invention, and the statistical measurement message obtain number.As shown in Figure 3:
When needs are measured PON ascending performance parameter,, and send to network side in the uni interface 333 or the PON interface 331 insertion measured message of user side ONU end; MAC312 at network side OLT end obtains measured message, and draws PON ascending performance parameter according to the information of this measured message.
When needs are measured the descending performance parameter of PON,, and send to user side in the PON interface 311 insertion measured message of network side OLT end; MAC 332 at user side ONU end obtains measured message, and draws the descending performance parameter of PON according to the information of this measured message.
In the present invention, described measured message has adopted and the identical message structure of domestic consumer's message.Like this, in the on-line measurement flow process of whole PON performance parameter, processing and process of transmitting for described measured message, consistent with processing and process of transmitting for domestic consumer's message, it is the equal of common user traffic flow, therefore, according to the PON performance parameter measured value that described measured message obtains, can think the PON performance parameter value of handling for user's message exactly.
The message structure of described measured message is identical with user's message, and has wherein comprised feature identification information, and this information is obtained end by PON information insertion end and information and decided through consultation in advance.Like this, after the measured message that has comprised feature identification information was inserted from the information insertion end and the information of sending to obtains end, the MAC that information is obtained end just can and obtain described measured message according to described feature identification information Recognition.Described feature identification information comprises: Ethernet Virtual Local Area Network frame head characteristic information, Ethernet 802.1p priority frame head characteristic information or GPON method for packing (GEM) frame head characteristic information etc.
Fig. 4 is according to measured message structural representation among the embodiment of method provided by the invention.In the present embodiment, PON is GPON, therefore has GEM layer head zone in message structure; The PON parameter that needs on-line measurement is a PON transmission delay value, the transmission time information in the time of therefore need inserting this measured message insertion in described measured message.
As shown in Figure 4, if described characteristic information is an Ethernet frame head characteristic information, as ethernet vlan frame head characteristic information or Ethernet 802.1p priority frame head characteristic information, then described Ethernet frame head characteristic information can be arranged on the mac-layer protocol head zone of measured message, as target MAC (Media Access Control) address (DMAC) zone, Ethernet upper-layer protocol type (Type) zone or payload area.Because present embodiment is the situation for GPON, thereby has GEM layer head zone, so described characteristic information also can be GEM frame head characteristic information, is arranged on GEM layer head zone.
As shown in Figure 4, in the present embodiment, transmission time information in the time of need in described measured message, inserting this measured message insertion when measuring PON transmission delay value, this temporal information is arranged in the measured message in the payload area, not influencing the information insertion end obtains end according to the handling process of domestic consumer's message with this measured message information of sending on the one hand, and also not influence information is obtained end identification and obtained described measured message on the other hand.Information obtain the end obtain this measured message after, can obtain its relevant information.
According to PON performance parameter On-line Measuring Method provided by the invention, be to initiate to measure flow process and draw PON performance parameter measured value according to the information that obtains by the OLT end.When the OLT end initiates to measure flow process, need to send the instruction that flow process is measured in unlatching to the information insertion end, in the GPON system, ONU management control interface (OMCI) agreement is adopted in this instruction, and in the EPON system, this instructs and adopts oam (OAM) agreement.
Can comprise the indication parameter information of measuring in the instruction of described unlatching measurement flow process, obtain information such as number threshold value, measured message acquisition time pocket door limit value, measured message transmission number, measured message transmission rate as measured message.
When needs when inserting and obtaining a plurality of measured message and measure the PON performance parameter, can in the instruction of flow process is measured in above-mentioned unlatching, measured message be set and obtain the number threshold value.Like this, after information is obtained end and is finished the measured message number that the step of obtaining measured message and statistics obtained, if this measured message number is obtained the number threshold value less than described measured message, illustrate that the information of having obtained is not enough to obtain the PON performance parameter, therefore, restart measurement flow process or end measurement flow process.
When needs when inserting and obtaining a plurality of measured message and measure the PON performance parameter, can in the instruction of flow process is measured in above-mentioned unlatching, measured message acquisition time pocket door limit value be set.Like this, when information obtain the end finish the step of obtaining certain measured message after, stand-by period has surpassed described measured message acquisition time pocket door limit value, do not obtain next measured message yet, can think that the bad or network of network quality interrupts, therefore, restart measurement flow process or end measurement flow process.
When needs when inserting and obtaining a plurality of measured message and measure the PON performance parameter, can in the instruction of flow process is measured in above-mentioned unlatching, measured message be set and send number.Like this, the information insertion end will send number according to described measured message and insert and send measured message, when the number that sends measured message reaches described measured message and sends number, the information insertion end stops to obtain measured message and is sent completely the message of inserting measured message to the OLT end, and the information that will obtain offers the OLT end to draw PON performance parameter measured value then.
When needs when inserting and obtaining a plurality of measured message and measure the PON performance parameter, can in the instruction of flow process is measured in above-mentioned unlatching, the measured message transmission rate be set.Like this, measured message be inserted and be sent to the information insertion end will according to described measured message transmission rate, until after information insertion end stopping of receiving that OLT end sends obtain the instruction of measured message, the information insertion end stops to obtain measured message, and the information that will obtain offers the OLT end to draw PON performance parameter measured value.
Method by on-line measurement PON performance parameter provided by the invention, by the control of the network side OLT of PON end and initiate the flow process of on-line measurement PON performance parameter: the information that the information insertion end of PON is inserted measured message and sent it to PON is obtained end, obtain end by this information and obtain described measured message, the OLT end of PON can obtain the PON performance parameter according to the information of measured message.
Described information insertion end and information are obtained OLT end or the ONU end that end can be PON respectively.Measure PON if desired and go up line parameter, then the ONU end is described information insertion end, and the OLT end obtains end for described information, and the OLT end draws PON according to the measured message information that obtains and goes up line parameter; Measure the PON downstream parameter if desired, then the OLT end is described information insertion end, ONU end obtains end for described information, and after stopping to measure the measured message information that obtains is sent to the OLT end, and the measured message information that OLT end basis obtains draws the PON downstream parameter.Describe respectively below by the specific embodiment flow process.
Fig. 5 is an embodiment schematic flow sheet of measuring PON uplink delay variation value according to method provided by the invention.In the present embodiment, initiate to measure flow process by network side OLT end, user side ONU end inserts measured message and sends to network side after receiving and opening the instruction of measuring flow process; Network side OLT end obtains this measured message, and writes down the time of advent of this measured message; The ONU end repeatedly inserts measured message, and the OLT end repeatedly obtains measured message and adds up the measured message number of having obtained; OLT end draws a plurality of PON uplink delay values, and according to the described measured message number of having obtained, further draws PON uplink delay variation value according to the transmission time information of a plurality of measured message and its corresponding time of advent of information.Concrete steps are as follows:
Step 501, the OLT end of PON initiates to measure flow process, send the instruction of opening measurement uplink delay variation value flow process to the ONU end, comprise the information of measuring indication parameter in this instruction, described measurement indication parameter comprises that measured message sends number and measured message is obtained the number threshold value.
Step 502, after the ONU end was received the described instruction of step 501, the up direction insertion measured message at uni interface or PON interface comprised the transmission time information when this measured message is inserted in this measured message.
Step 503, the ONU end sends to the OLT end with the measured message of inserting in the step 502.
Step 504, the measured message number that ONU end statistics has been inserted.
Step 505, if the ONU end detects the measured message transmission number that the described measured message number of having inserted of step 504 equals setting described in the step 501, then execution in step 506; Otherwise, return execution in step 502, promptly continue to insert next measured message.
Step 506, the ONU end stops to insert measured message, and is sent completely the message of inserting measured message to the OLT end.
Step 507, the OLT end obtains transmission time information wherein, and writes down the time of advent of this measured message by measured message described in the MAC obtaining step 502.
Step 508, the measured message number that OLT end statistics has been obtained.
Whether step 509, OLT end detect receives as what ONU end as described in the step 506 was sent and finishes the message of inserting measured message that if receive this message, then execution in step 510; Otherwise, return execution in step 507, promptly continue to wait for and obtain next measured message.
Step 510, the OLT end stops to obtain measured message.
Step 511 is obtained the number threshold value if the measured message number of having obtained described in the OLT end detection step 508 is not less than the measured message of setting described in the step 501, and then execution in step 512; Otherwise, return step 501, promptly restart and measure flow process or finish to measure flow process.
Step 512, OLT end is according to the transmission time information of a plurality of measured message of obtaining in the step 507 and its corresponding time of advent of information, draw a plurality of PON uplink delay values, and, further draw PON uplink delay variation value according to the measured message number of having obtained described in the step 508.
In the embodiment shown in fig. 5, set measured message in the instruction described in the step 510 and obtained the number threshold value, as measuring indication parameter.If the OLT end detects the measured message number of having obtained and obtains the number threshold value less than the measured message of described setting in step 580, illustrate that the information of having obtained is not enough to obtain the PON performance parameter, it is PON transmission delay jitter value, thereby, can return step 510 and restart the measurement flow process or finish to measure flow process.
In the embodiment shown in fig. 5, further setting measurement message acquisition time pocket door limit value in the instruction described in the step 510 is as the measurement indication parameter.If the OLT end obtains after certain measured message in step 550, wait for that the time that next measured message arrives obtains the number threshold value greater than the measured message of described setting, do not obtain next measured message yet, can think that the bad or network of network quality interrupts, thereby, can return step 510 and restart the measurement flow process or finish to measure flow process.
On measurement PON shown in Figure 5 among the embodiment of line parameter, the insertion of opening or stopping measured message with obtain, be to measure the instruction of going up the line parameter flow process by the unlatching that sends to the ONU end in the step 501 to control, in this instruction, set measured message and sent number, as measuring indication parameter.The ONU end is each to be inserted and sends after the measured message, the measured message number that statistics has been inserted in step 504, and in step 505, compare with the measured message transmission number of described setting, send number if the measured message number of having inserted has reached the measured message of setting, then stop to insert measured message and notify OLT end; In step 507, the OLT end is waited for the arrival of measured message, obtains this measured message when it arrives, and the measured message number that statistics has been obtained in step 508, receive the message of finishing the insertion measured message that ONU sends when the end of OLT in step 509, then stop to wait for and obtaining measured message.
In the present embodiment, only sending number by the setting measurement message comes the insertion of control survey message and measures flow process.Further, the insertion of measured message also can be regularly to insert, and like this, can in opening the instruction of measuring flow process the measured message transmission rate be set further, thereby at the uniform velocity insert measured message.
In the embodiment shown in fig. 5, be to send number by setting measurement message in the instruction of open measuring flow process described in the step 501 to control the insertion of opening or stopping measured message and obtain.Go up the measurement of line parameter for PON, also can realize control by setting measurement message transmitting spped rate in the instruction of measuring flow process in described unlatching: the ONU end regularly inserts and sends measured message according to described measured message transmission rate, and do not need execution in step 504, promptly add up the measured message number of having inserted; When needs stop to insert measured message, send the instruction that stops to measure by the OLT end to the ONU end, then the ONU end stops to insert measured message, and the OLT end stops to obtain measured message, the OLT end draws PON uplink delay variation value according to the measured message information that has obtained then.
In the embodiment shown in fig. 5, in described step 507, after OLT end has obtained first measured message, according to record the time of advent information and measured message in transmission time information, can obtain first PON uplink time delay value.Therefore, what measure if desired is PON uplink time delay value, then can in step 501 described measured message be sent number and be made as 1.
In the embodiment shown in fig. 5, can draw PON uplink delay value in the step 512, in view of the above, also can further draw the up round-trip transmission delay value of PON.
The parameter of Ce Lianging is a packet loss if desired, transmission number that only need be by the statistical measurement message and obtain number then, just can draw packet loss, therefore need not comprise transmission time information when inserting measured message, information need not sign in when obtaining measured message yet.
Be to carry out the embodiment explanation as mentioned above,, also can realize by similar method for the on-line measurement of PON downstream parameter according to the On-line Measuring Method of the last line parameter of PON provided by the invention.
Fig. 6 is an embodiment schematic flow sheet of measuring the descending packet loss of PON according to method provided by the invention.In the present embodiment, initiate to measure flow process by network side OLT end; Network side OLT end inserts measured message and sends to user side, and user side ONU end obtains this measured message; The OLT end repeatedly inserts measured message, and the ONU end repeatedly obtains measured message and adds up the measured message number of having obtained; Notice ONU end after the OLT end is finished the insertion measured message, the ONU end receives that the measured message number information that will obtain after this notice sends to the OLT end; The OLT end sends number according to the measured message of measured message number of having obtained and setting, draws the descending packet loss of PON.Concrete steps are as follows:
Step 601, the OLT end of PON initiates to measure flow process, send the instruction of opening the descending packet loss flow process of measurement to the ONU end, comprise the information of measuring indication parameter in this instruction, described measurement indication parameter comprises that measured message sends number and measured message is obtained the number threshold value.
Step 602, the OLT end inserts measured message at the down direction of PON interface.
Step 603, the OLT end sends to the ONU end with the measured message of inserting in the step 602.
Step 604, the measured message number that OLT end statistics has been inserted.
Step 605, if the OLT end detects the measured message transmission number that the described measured message number of having inserted of step 604 equals setting described in the step 601, then execution in step 606; Otherwise, return execution in step 602, promptly continue to insert next measured message.
Step 606, the OLT end stops to insert measured message, and is sent completely the message of inserting measured message to the ONU end.
Step 607, the ONU end passes through measured message described in the MAC obtaining step 602,
Step 608, the measured message number that ONU end statistics has been obtained.
Whether step 609, ONU end detect receives as what OLT end as described in the step 606 was sent and finishes the message of inserting measured message that if receive this message, then execution in step 610; Otherwise, return execution in step 607, promptly continue to wait for and obtain next measured message.
Step 610, ONU end stop to obtain measured message and send the measured message number information of having obtained to the OLT end.
Step 611 is obtained the number threshold value if the measured message number of having obtained described in the OLT end detection step 610 is not less than the measured message of setting described in the step 601, and then execution in step 612; Otherwise, return step 601, promptly restart and measure flow process or finish to measure flow process.
Step 612, the OLT end sends number according to measured message described in measured message number of having obtained described in the step 610 and the step 601, draws the descending packet loss of PON.
In the present embodiment, because transmission number that only need be by the statistical measurement message and obtain number, just can draw required packet loss, therefore need not comprise transmission time information when inserting measured message, information need not sign in when obtaining measured message yet.
In the embodiment of measurement PON downstream parameter shown in Figure 6, set measured message in the instruction described in the step 601 and obtained the number threshold value, as measuring indication parameter, the effect on its effect and as shown in Figure 5 the measurement PON among the embodiment of line parameter is the same.Instruction described in the step 601 has been set measured message and has been obtained the number threshold value, if the OLT end detects the measured message number of having obtained and obtains the number threshold value less than the measured message of described setting in step 611, illustrate that the information of having obtained is not enough to obtain the PON performance parameter, it is the PON packet loss, thereby, can return step 601 and restart the measurement flow process or finish to measure flow process.
In the embodiment of measurement PON downstream parameter shown in Figure 6, further setting measurement message acquisition time pocket door limit value in the instruction described in the step 601, as measuring indication parameter, the effect on its effect and as shown in Figure 5 the measurement PON among the embodiment of line parameter is the same.If the OLT end obtains after certain measured message in step 607, wait for that the time that next measured message arrives obtains the number threshold value greater than the measured message of described setting, do not obtain next measured message yet, can think that the bad or network of network quality interrupts, thereby, can return step 601 and restart the measurement flow process or finish to measure flow process.
In the embodiment of measurement PON downstream parameter shown in Figure 6, the insertion of opening or stopping measured message with obtain, be to control by the instruction of the unlatching measurement downstream parameter flow process that sends to the ONU end in the step 601, in this instruction, set measured message and sent number, as measuring indication parameter.Effect on its effect and as shown in Figure 5 the measurement PON among the embodiment of line parameter is the same.Similarly, the insertion of measured message also can be regularly to insert, and like this, can in opening the instruction of measuring flow process the measured message transmission rate be set further, thereby at the uniform velocity insert measured message.
Situation about going up among the embodiment of line parameter with as shown in Figure 5 measurement PON is similar, measurement for the PON downstream parameter, also can realize control by setting measurement message transmitting spped rate in the instruction of measuring flow process in described unlatching: the OLT end regularly inserts and sends measured message according to described measured message transmission rate, and do not need execution in step 604, promptly add up the measured message number of having inserted; When needs stop to insert measured message, send the instruction that stops to measure by the OLT end to the ONU end, then the OLT end stops to insert measured message, ONU holds the measured message number information that stops to obtain measured message and will obtain to send to the OLT end, the OLT end draws the descending packet loss of PON according to the measured message information that has obtained then.
Method by on-line measurement PON performance parameter provided by the invention, by the control of the OLT of PON end and initiate the flow process of on-line measurement PON performance parameter: the information that the information insertion end of PON is inserted measured message and sent it to PON is obtained end, obtain end by this information and obtain described measured message, the OLT end of PON can obtain the PON performance parameter according to the information of measured message, thereby has realized the purpose of online in real time Measurement Network performance parameter in PON.
Described information insertion end and information are obtained OLT end or the ONU end that end can be PON respectively, and described PON performance parameter comprises transmission delay, transmission delay shake, packet loss etc.According to On-line Measuring Method provided by the invention, not only can be and further carry out the network optimization, dilatation or quality evaluation foundation is provided, and, also reduced the measurement cost owing to need not to use special measurement circuit and equipment.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (20)
1, a kind of method of on-line measurement passive optical network PON performance parameter, it is characterized in that: this method may further comprise the steps:
The optical line terminal OLT end of A, PON sends to the optical network unit ONU end and opens the instruction of measuring flow process, comprises the indication parameter information of measuring in this instruction;
The information of sending to was obtained end after the information insertion end of B, PON was inserted measured message, and described information is obtained end and obtained the measured message of insertion;
The OLT end of C, PON obtains the PON measured value of parameters according to measured message information.
2, the method for claim 1 is characterized in that: measuring indication parameter described in the steps A is that measured message sends number;
The information of sending to was obtained after the end after the information insertion end of the described PON of step B was inserted measured message, further comprise: the information insertion end statistics of PON has been inserted the measured message number, equal the transmission of measured message described in steps A number if inserted the measured message number, then stop to send measured message, and obtain end to the information of PON and send the message of finishing the insertion measured message; The information of PON is obtained end and is received after this message, stops to obtain measured message.
3, the method for claim 1 is characterized in that: measuring indication parameter described in the steps A is the measured message transmission rate;
The information insertion end of the described PON of step B is inserted measured message: insert measured message according to the described measured message transmission rate of steps A;
Before the described step C, further comprise: the OLT end of PON sends the instruction that stops to measure to the ONU of PON end; Described information insertion end stops to insert measured message, and described information is obtained end and stopped to obtain measured message.
4, method as claimed in claim 2 is characterized in that:
Comprise the transmission time information when this measured message is inserted in the described measured message of step B, this transmission time information is set at the payload area of measured message;
The information of PON described in the step B is obtained end and is obtained after the measured message of insertion, further writes down the time of advent of described measured message;
Described step C is: the OLT end of PON obtains PON transmission delay value according to the information time of advent of transmission time information in the measured message and described measured message.
5, method as claimed in claim 4 is characterized in that: measured message described in the steps A sends number greater than 1;
The information of PON described in the step B is obtained end and is obtained after the measured message of insertion, further comprises: the measured message number that statistics has been obtained;
Obtaining PON transmission delay value described in the step C, is to obtain a plurality of transmission delay values according to a plurality of measured message information;
After step C, further comprise:, obtain PON transmission delay jitter value according to a plurality of transmission delay values described in measured message number of having obtained described in the step B and the step C.
6, method as claimed in claim 2 is characterized in that: measured message described in the steps A sends number greater than 1;
The information of PON described in the step B obtain the end obtain the measured message of insertion after, further comprise: add up the described measured message number of having obtained;
Described step C is: the OLT end of PON sends number information according to measured message described in described measured message number information of having obtained and the steps A, obtains the PON packet loss.
7, the method for claim 1 is characterized in that: measuring indication parameter described in the steps A is that measured message is obtained the number threshold value;
Further comprised before described step C: the information of PON is obtained the measured message number that the end statistics has been obtained, if the described measured message number of having obtained is obtained the number threshold value less than measured message described in the steps A, then returns execution in step A or end.
8, method as claimed in claim 7 is characterized in that: measured message described in the steps A is obtained the number threshold value greater than 1;
Described measurement indication parameter further comprises: measured message acquisition time pocket door limit value;
If the information of PON described in the step B obtain the end obtain measured message interval greater than the acquisition time of measured message described in steps A pocket door limit value, then return execution in step A or end.
9, as claim 7 or 8 described methods, it is characterized in that: the information of described PON is obtained the OLT end of end for PON, and the information insertion end of described PON is the ONU end of PON.
10, as claim 7 or 8 described methods, it is characterized in that: the information of described PON is obtained the ONU end of end for PON; The information insertion end of described PON is the OLT end of PON;
Described returning before execution in step A or the end further comprises: the OLT end of the ONU end notice PON of PON.
11, as claim 1,2 or 3 described methods, it is characterized in that: the ONU end that described information insertion end is PON, described information obtain the OLT end of end for PON; The parameter of PON described in the step C is that PON goes up line parameter.
12, as claim 1,2 or 3 described methods, it is characterized in that: the OLT end that described information insertion end is PON, described information obtain the ONU end of end for PON; The parameter of PON described in the step C is the PON downstream parameter;
Before described step C, further comprise: the ONU end sends the measured message information that obtains to the OLT end.
13, method as claimed in claim 11 is characterized in that: inserting described in the step B is to insert from PON interface or user network interface uni interface.
14, method as claimed in claim 12 is characterized in that: inserting described in the step B is to insert from the PON interface.
15, as claim 1,2 or 3 described methods, it is characterized in that: be retrieved as described in the step B by PON media access controller MAC and obtain.
16, as claim 1,2 or 3 described methods, it is characterized in that: the message structure of described measured message is identical with the message structure of user's message.
17, as claim 1,2 or 3 described methods, it is characterized in that: comprise feature identification information in the described measured message.
18, method as claimed in claim 17 is characterized in that: described PON is Gigabit Passive Optical Network GPON, and described feature identification information is the GEM frame head characteristic information that is arranged on GPON method for packing layer head zone.
19, method as claimed in claim 17 is characterized in that: described feature identification information is Ethernet virtual LAN VLAN frame head characteristic information or Ethernet 802.1p priority frame head characteristic information.
20, method as claimed in claim 19 is characterized in that: the target MAC (Media Access Control) address DMAC zone in the mac-layer protocol head zone of described feature identification information setting in measured message, Ethernet upper-layer protocol type Type zone or payload area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610087097XA CN101047451B (en) | 2006-06-16 | 2006-06-16 | Method for on-line measuring parameter of passive optical network function |
| PCT/CN2007/070125 WO2007147365A1 (en) | 2006-06-16 | 2007-06-15 | A method for measuring the performance parameter of the passive optical network on line and a system, device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610087097XA CN101047451B (en) | 2006-06-16 | 2006-06-16 | Method for on-line measuring parameter of passive optical network function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101047451A true CN101047451A (en) | 2007-10-03 |
| CN101047451B CN101047451B (en) | 2010-12-01 |
Family
ID=38771719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610087097XA Active CN101047451B (en) | 2006-06-16 | 2006-06-16 | Method for on-line measuring parameter of passive optical network function |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101047451B (en) |
| WO (1) | WO2007147365A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834665A (en) * | 2010-04-22 | 2010-09-15 | 中兴通讯股份有限公司 | Packet loss detection system and method of Ethernet service in DTMB (Digital Television Terrestrial Multimedia Broadcasting) system |
| CN103095368A (en) * | 2011-11-04 | 2013-05-08 | 安立股份有限公司 | Light measuring device |
| WO2017156940A1 (en) * | 2016-03-14 | 2017-09-21 | 中兴通讯股份有限公司 | Data counting method and device |
| CN107800588A (en) * | 2017-10-19 | 2018-03-13 | 上海市共进通信技术有限公司 | Cross-platform network aptitude test system and method based on Y.1731 agreement |
| CN110858974A (en) * | 2018-08-23 | 2020-03-03 | 华为技术有限公司 | Communication method and device |
| CN112398557A (en) * | 2019-08-16 | 2021-02-23 | 华为技术有限公司 | Time delay statistical method, device, storage medium and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020051614A (en) * | 2000-12-23 | 2002-06-29 | 오길록 | The OA&M Mechanism For ATM-PON Acess Network |
| CN1172481C (en) * | 2002-08-22 | 2004-10-20 | 陈鸣 | Interconnection network end-to-end performance monitoring method and its system |
| WO2004079404A2 (en) * | 2003-03-03 | 2004-09-16 | UBI SYSTEMS, INC. (A Delaware Corporation) | System and method for performing in-service fiber optic network certification |
| KR100495330B1 (en) * | 2003-09-02 | 2005-06-14 | 한국전자통신연구원 | System and method for managing and controlling of ethernet passive optical access network |
| CN100385861C (en) * | 2005-09-12 | 2008-04-30 | 中国移动通信集团公司 | Optical fibre access network and its communication protection method |
-
2006
- 2006-06-16 CN CN200610087097XA patent/CN101047451B/en active Active
-
2007
- 2007-06-15 WO PCT/CN2007/070125 patent/WO2007147365A1/en active Application Filing
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834665A (en) * | 2010-04-22 | 2010-09-15 | 中兴通讯股份有限公司 | Packet loss detection system and method of Ethernet service in DTMB (Digital Television Terrestrial Multimedia Broadcasting) system |
| CN101834665B (en) * | 2010-04-22 | 2014-12-10 | 中兴通讯股份有限公司 | Packet loss detection system and method of Ethernet service in DTMB (Digital Television Terrestrial Multimedia Broadcasting) system |
| CN103095368A (en) * | 2011-11-04 | 2013-05-08 | 安立股份有限公司 | Light measuring device |
| CN103095368B (en) * | 2011-11-04 | 2015-07-01 | 安立股份有限公司 | Light measuring device |
| WO2017156940A1 (en) * | 2016-03-14 | 2017-09-21 | 中兴通讯股份有限公司 | Data counting method and device |
| CN107800588A (en) * | 2017-10-19 | 2018-03-13 | 上海市共进通信技术有限公司 | Cross-platform network aptitude test system and method based on Y.1731 agreement |
| CN107800588B (en) * | 2017-10-19 | 2021-12-24 | 上海市共进通信技术有限公司 | Cross-platform network performance test system and method based on Y.1731 protocol |
| CN110858974A (en) * | 2018-08-23 | 2020-03-03 | 华为技术有限公司 | Communication method and device |
| CN110858974B (en) * | 2018-08-23 | 2021-04-20 | 华为技术有限公司 | Communication method and device |
| CN112398557A (en) * | 2019-08-16 | 2021-02-23 | 华为技术有限公司 | Time delay statistical method, device, storage medium and system |
| US11870667B2 (en) | 2019-08-16 | 2024-01-09 | Huawei Technologies Co., Ltd. | Delay statistical method, apparatus, storage medium, and system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007147365A1 (en) | 2007-12-27 |
| CN101047451B (en) | 2010-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7289439B2 (en) | Method for implementing various functions in gigabit ethernet-passive optical network system and structure of ethernet frame employed in the same | |
| US9793993B2 (en) | Method and apparatus of delivering upstream data in ethernet passive optical network over coaxial network | |
| JP3788788B2 (en) | Data transmission method in Gigabit Ethernet (registered trademark) passive optical network | |
| EP1499155A1 (en) | Multicast GPON transmission and GEM frame processing method | |
| US20070133424A1 (en) | ONU delay and jitter measurment | |
| CN100581175C (en) | Computer Ethernet card based on passive optical network | |
| CN101047451A (en) | Method for on-line measuring parameter of passive optical network function | |
| KR100605846B1 (en) | Method for controlling loopback procedure in ethernet passive optical network | |
| WO2009039791A1 (en) | Pon group broadcast communication system, group broadcast managing method and the corresponding device | |
| CN101047450A (en) | Method for sending zero configuration service to optical fibre access termianl equipment | |
| KR100640464B1 (en) | Method for method for transmitting oamoperation, administration, and maintenance packet data and ethernet passive optical network having control multiplexer therefor | |
| CN1767692A (en) | Ethernet passive optical network multi service bandwidth distributing system | |
| CN1855778A (en) | Passive optical network concatenating system and optical circuit terminal thereof | |
| CN1767693A (en) | Method for Ethernet passive optical network multi service dynamic bandwidth request | |
| CN1777066A (en) | Ethernet passive optical network multi-service dynamic broadband distributing method | |
| CN101047444B (en) | Method for optical network unit depart from multicast set in passive optical network system | |
| TWI474682B (en) | System and method for applying an extended multipoint protocol to wireless access systems | |
| KR100539952B1 (en) | Multicast Transmission Method in GEM mode and Frame Handling Method for it | |
| KR100630064B1 (en) | Method for onu late registration method in giga bit ethernet passive optical network and thereof ethernet frame structure | |
| KR20090083699A (en) | Ethernet frame structure and ethernet frame switching method using the same for virtual port-based switching in gem mode of gigabit pon | |
| EP2667632A2 (en) | Method and apparatus for extending multipoint control protocols to mixed media access systems | |
| Shi et al. | Dynamic Bandwidth Allocation for Group Service Assurance in Passive Optical Network | |
| WO2014019143A1 (en) | Method and device for data transmission and resource scheduling in optical coaxial network architecture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |