CN107612650B - Message processing method and system - Google Patents
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Abstract
The embodiment of the present invention proposes message processing method and system, belongs to the communications field.It include: in the first optical communication terminal, MPCP message and default message are merged, it obtains merging message, when merging message enters interchanger, record enters the first moment value of interchanger and leaves the difference of the second moment value of interchanger, it obtains updating message, interchanger extracts the address information updated in message, will update message and is forwarded to the second optical communication terminal corresponding with address information.By before message enters interchanger, in the first optical communication terminal for sending message, the default message of MPCP message and specific format is merged, by means of specific message format in default message, so that merging message has the effect for saving and passing through exchange board time, so that MPCP message obtains in transmission process and saves the time by interchanger, and then based on residence time to the clock alignment of ONU or OLT.
Description
Technical field
The invention belongs to the communications fields, in particular to message processing method and system.
Background technique
MPCP message (multi-point control protocol, Multi-point Control Protocol) is EPON MAC control sublayer
Agreement, MPCP message defines the controlling mechanism between OLT and ONU, carrys out effectively sending and receiving for coordination data.Currently,
MPCP message needs in the transmission process between OLT and ONU through interchanger, but MPCP message can not be recorded in interchanger
Residence time, lead to not determine time of the MPCP message in transmission process, affect the clock alignment of ONU or OLT.
Summary of the invention
In order to solve shortcoming and defect existing in the prior art, the present invention provides obtain merging report based on MPCP message
Text obtains the message processing method and system of the residence time in interchanger by the special packet format merged in message.
In order to reach above-mentioned technical purpose, on the one hand, the present invention provides message processing method, the processing method, packet
It includes:
In the first optical communication terminal, MPCP message and default message are merged, obtains merging message, be reported merging
Text is sent to interchanger；
When merging message enters interchanger, record enters the first moment value of interchanger, leaves exchange merging message
When machine, record leaves the second moment value of interchanger, and the difference of the first moment value and the second moment value is stored in and merges message, is obtained
To update message；
Interchanger extracts the address information updated in message, will update message and is forwarded to the second light corresponding with address information
Communication terminal.
Optionally, described to merge MPCP message and default message, it obtains merging message, comprising:
In the first optical communication terminal, it is equipped with the first module and the second module, message transmission is received in the first module and asks
After asking, message is sent to the second module and generates request, while default message is edited；
Second module generates and edits MPCP message after receiving message and generating request, the MPCP message that editor is completed
It is sent to the first module；
First module receives the MPCP message that editor completes, and MPCP message content is connected to the tail portion of default message, is obtained
Merge message to treated.
Optionally, the processing method further include:
In the first module, tail portion content in default message is deleted, obtains simplifying treated default message, it will
MPCP message residue content is connected to the tail portion for default message of simplifying that treated, obtains that treated merges message.
It is optionally, described to delete tail portion content in default message, comprising:
It deletes and is located at the content after correctionfield in default message.
Optionally, it the treating method comprises:
When the first optical communication terminal obtains merging message, obtains and generate the first time stamp for merging the message moment, by the
One timestamp is sent to interchanger together with merging message.
Optionally, the processing method further include:
After second optical communication terminal receives merging message, message will be merged and be split as default message and MPCP message, obtained
Take the second timestamp of MPCP message.
Optionally, the processing method further include:
Residence time using the difference of the first moment value and the second moment value as merging message in interchanger；
Obtain stamp at the first time, residence time and the second timestamp and value, according to be worth to the second optical communication terminal
Clock is adjusted.
Optionally, when first optical communication terminal is optical line terminal, second optical communication terminal is optical-fiber network
Unit；Or
When first optical communication terminal is optical network unit, second optical communication terminal is optical line terminal.
Optionally, optical splitter is equipped between the interchanger and second optical communication terminal, optical splitter is through interchanger
ETH mouth connect with the first optical communication terminal.
On the other hand, the present invention also provides message handling system, the processing systems, comprising:
Sending module, for MPCP message and default message being merged, merged in the first optical communication terminal
Message will merge message and be sent to interchanger；
Memory module, for when merging message enters interchanger, record to enter the first moment value of interchanger, is merging
When message leaves interchanger, record leaves the second moment value of interchanger, and the difference of the first moment value and the second moment value is deposited
Enter to merge message, obtains updating message；
Forwarding module extracts the address information updated in message for interchanger, will update message and is forwarded to and believes with address
Cease corresponding second optical communication terminal.
Technical solution provided by the invention has the benefit that
By before message enters interchanger, in the first optical communication terminal for sending message, by MPCP message with it is specific
The default message of format merges, by means of specific message format in default message, so that merging message has preservation
By the effect of exchange board time, so that MPCP message obtains in transmission process and saves the time by interchanger,
And then based on residence time to the clock alignment of ONU or OLT.
Detailed description of the invention
It, below will be to attached drawing needed in embodiment description in order to illustrate more clearly of technical solution of the present invention
It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of message processing method provided by the invention；
Fig. 2 is the process flow diagram in the first module and the second module provided by the invention；
Fig. 3 is that content schematic diagram is deleted in message processing method provided by the invention；
Fig. 4 is the flow diagram of clock adjusting method provided by the invention；
Fig. 5 is optical communication network structural schematic diagram provided by the invention；
Fig. 6 is the structural schematic diagram of message handling system provided by the invention.
Specific embodiment
To keep structure and advantage of the invention clearer, structure of the invention is made further below in conjunction with attached drawing
Description.
Embodiment one
The present invention provides message processing method, the processing method, as shown in Figure 1, comprising:
11, in the first optical communication terminal, MPCP message and default message are merged, obtains merging message, will close
And message is sent to interchanger；
12, when merging message enters interchanger, record enters the first moment value of interchanger, leaves friendship merging message
When changing planes, record leaves the second moment value of interchanger, and the difference of the first moment value and the second moment value is stored in and merges message,
It obtains updating message；
13, interchanger extracts the address information updated in message, will update message and be forwarded to corresponding with address information the
Two optical communication terminals.
In an implementation, in order to obtain residence time of the message in interchanger, processing method that the application proposes are as follows: respectively
Determine the time of the into and out interchanger of message, i.e. the first moment value, the second moment value, when by the first moment value, second
Quarter, the difference of value saved into message, sent to the second optical communication terminal, so that the second optical communication terminal is after receiving message,
The difference for extracting the first moment value and the second moment value obtains residence time of the message in interchanger.
In view of existing MPCP message can not obtain and save when by interchanger entrance, leave interchanger when
Between, the processing method that the application proposes is especially before message enters interchanger, will in the first optical communication terminal for sending message
The default message of MPCP message and specific format merges, by means of specific message format in default message, so that merging
Message has the effect for saving and passing through exchange board time, so that MPCP message obtains in transmission process and saves process
The time of interchanger finally obtains exact residence time in the second optical communication terminal.
The MPCP (Multi-Point Control Protocol, Multi-point Control Protocol) used in above process is
The agreement of EPON MAC control sublayer.MPCP defines OLT (Optical Line Terminal, optical line terminal) and ONU
Controlling mechanism between (Optical Network Unit, optical network unit) carrys out effectively sending and receiving for coordination data.
EPON system is connected multiple data terminal equipments (Data Terminal Equipment, DTE) by optical fiber, is opened up
Flutterring structure is the asymmetric tree-like branched structure based on passive optical splitters.MPCP is exactly that this topological structure is made to be suitable for ether
A kind of controlling mechanism of net.Message based on the transmission of MPCP agreement is known as MPCP message.
Default message includes all polymorphic types, typically uses 1588 messages.1588 systems are a kind of master-slave synchronisation systems.?
In the synchronizing process of system, master clock cycle issues PTP time synchronization and temporal information, receives master clock end from clock port
The timestamp information that mouth is sent, system calculate the delay of principal and subordinate's wire time and principal and subordinate's time difference according to this information, and utilizing should
Time difference adjusts local zone time, so that the equipment time be made to keep frequency and phase with main equipment time consistency.1588 messages can
To realize Frequency Synchronization and Phase synchronization simultaneously.Characteristic based on 1588 messages above embodied by MPCP it is found that report
After text combines 1588 messages, based on the synchronizing characteristics that 1588 messages have, MPCP message is enabled to be carried through interchanger
Moment value, and then determine that message passes through the residence time of interchanger according to moment value.
Optionally, described that MPCP message and default message are merged into processing, it obtains that treated merges message, wraps
It includes:
21, in the first optical communication terminal, it is equipped with the first module and the second module, message is received in the first module and sends
After request, message is sent to the second module and generates request, while default message is edited；
22, the second module generates and edits MPCP message after receiving message and generating request, the MPCP that editor is completed
Message is sent to the first module；
23, the first module receives the MPCP message that editor completes, and MPCP message content is connected to the tail portion of default message,
It obtains that treated and merges message.
In an implementation, the step of merging message is obtained in step 11 in the first optical communication terminal, through setting first
The first module and the second module in optical communication terminal realize that the first module and the second module are as in the first optical communication terminal
Submodule is respectively used to 1588 messages of editor and edits MPCP message, and 1588 messages that the first module is also used to obtain
It is merged with MPCP message, obtains merging message.
Process flow in first module and the second module is as shown in Figure 2.
It is received after message sends request in the first module, sends message to the second module and generate request, while to default
Message is edited；
Second module generates and edits MPCP message after receiving message and generating request, the MPCP message that editor is completed
It is sent to the first module；
First module receives the MPCP message that editor completes, and MPCP message content is connected to the tail portion of default message, is obtained
Merge message to treated.
Optionally, the processing method further include:
In the first module, tail portion content in default message is deleted, obtains simplifying treated default message, it will
MPCP message residue content is connected to the tail portion for default message of simplifying that treated, obtains that treated merges message.
In an implementation, based on the above embodiment it is found that the process for obtaining merging message needs to add in 1588 message tails
MPCP message is that 1588 messages and MPCP message join end to end in structure.But in the actual operation process, 1588 report
Any effect no for the realization of entire processing method of some contents of literary tail portion, therefore the contents of the section can be deleted,
To play the effect for simplifying message content.Simultaneously because message entire content is simplified, so that relative to the message before simplifying,
The transmission time for simplifying rear message can be reduced necessarily, to bring the result for improving efficiency of transmission.
Specifically, the content that can be simplified is concentrated mainly on the default message i.e. tail portion of 1588 messages, actual mechanical process
In can delete in default message be located at correctionfield after content.It specifically deletes content and is detailed in Fig. 3, it is shallow in Fig. 3
The content of color part is the part that can be deleted.
Wherein, the domain correctionfield is the residence time for being stored in interchanger.
The embodiment of the present invention proposes message processing method, comprising: in the first optical communication terminal, by MPCP message and in advance
If message merges, obtain merging message, when merging message enters interchanger, record enters the first moment value of interchanger
And the difference of the second moment value of interchanger is left, and it obtaining updating message, interchanger extracts the address information updated in message,
Message will be updated and be forwarded to the second optical communication terminal corresponding with address information.By sending before message enters interchanger
In first optical communication terminal of message, the default message of MPCP message and specific format is merged, by means of presetting message
Interior specific message format, so that merging message has the effect for saving and passing through exchange board time, so that MPCP message
The time by interchanger is obtained and saved in transmission process, and then based on residence time to the clock alignment of ONU or OLT.
Embodiment two
Previous embodiment proposes the method for determining message residence time in interchanger based on merging message, the present embodiment
Then based on transmission process of the message between the first optical communication terminal, interchanger and the second optical communication terminal is merged, to second
The method that optical communication terminal, that is, message recipient clock is adjusted.The step of specific clock adjusting method, is such as Fig. 4 institute
Show.
41, it when the first optical communication terminal obtains merging message, obtains and generates the first time stamp for merging the message moment, it will
Stamp is sent to interchanger together with merging message at the first time；
42, after the second optical communication terminal receives merging message, message will be merged and be split as default message and MPCP message,
Obtain the second timestamp of MPCP message；
43, the difference based on the first moment value and the second moment value is obtained when merging resident in interchanger of message
Between；
44, obtain stamp at the first time, residence time and the second timestamp and value, according to be worth to the second optical communication terminal
Clock be adjusted.
In an implementation, in order to guarantee the timeliness of message transmissions, the frequent clock to message transmitting party, recipient is needed
It is adjusted.By the first optical communication terminal, interchanger, the second optical communication terminal transmission direction for, to the second optic communication end
The step of clock at end is adjusted is as follows:
Firstly, the moment is by the first optical communication terminal at the time of determining that merge message sends from the first optical communication terminal
First module obtains merging the corresponding first time stamp determination of message after merging processing to message, and stamp follows conjunction at the first time
And message is transmitted to the second optical communication terminal through interchanger.
Then, according to the content in previous embodiment, extracted for the first moment from the correctionfield for merging message
The difference of value and the second moment value takes the difference as to obtain the residence time for merging message in interchanger.
Again, it determines in the second optical communication terminal, message will be merged and be decomposed into prolonging for default message and MPCP message
The slow time merges the merging process of message and the decomposable process for merging message is reciprocal, therefore according to step 21- in previous embodiment
23 content will merge message through the first module in the second optical communication terminal first it is found that when decomposing to merging message
1588 messages and MPCP message are decomposed into, then analyze MPCP message transmissions to the second module.In the first decomposition module
Second timestamp of the existing time as MPCP message between the second module analysis.
Finally, by first time stamp, the second timestamp and residence time and value as the second optical communication terminal when
Clock value completes the adjustment to the second optical communication terminal.
In above process, fully considered influence merge message one-way transmission process transmission time many factors,
And the clock of the second optical communication terminal is adjusted in conjunction with many factors, so that the second optical communication terminal adjusted is subsequent
In the transmission process for merging message, enables and merge message with accurate time parameter, improve entire optical communication network
Communication accuracy and accuracy.
Embodiment three
The present embodiment proposes a kind of optical communication network structure, as shown in figure 5, the network structure includes:
Optical splitter, ETH mouth of the optical splitter through interchanger are equipped between the interchanger and second optical communication terminal
It is connect with the first optical communication terminal.
In an implementation, existing optical communication network is generally interchanger connection optical line terminal (Optical Line
Terminal, OLT), optical line terminal by optical splitter connect multiple optical network units (Optical Network Unit,
ONU)。
And the present embodiment then exchanges the position of interchanger and optical line terminal, so that ETH mouthfuls of one of interchanger
(i.e. Ethernet interface, Ethernet mouthfuls) connection, is connected with optical splitter, and then through an optical splitter on one ETH mouthfuls of interchanger
Connect multiple optical network units.So compared with the existing technology, an optical line terminal is enabled to connect more optical-fiber networks
Unit can complete the flaring structure of optical line terminal without changing interchanger.
Optionally, when first optical communication terminal is optical line terminal, second optical communication terminal is optical-fiber network
Unit；Or
When first optical communication terminal is optical network unit, second optical communication terminal is optical line terminal.
In an implementation, different type can be installed simultaneously on the position of the first optical communication terminal and the second optical communication terminal
Optical-fiber network component, specially optical line terminal (Optical Line Terminal, OLT) or optical network unit (Optical
Network Unit, ONU), to construct the optical communication network for being used for transmission message.
The embodiment of the present invention proposes optical communication network structure, is included in the interchanger and second optical communication terminal
Between be equipped with optical splitter, optical splitter connect through the ETH mouth of interchanger with the first optical communication terminal.By by interchanger and optical link
The position of terminal is exchanged, so that ETH mouthfuls of one of interchanger connections, are connected with light splitting on one ETH mouthfuls of interchanger
Device, and then multiple optical network units are connected through an optical splitter.So compared with the existing technology, enable an optical line terminal
More optical network units are enough connected, the flaring structure of optical line terminal can be completed without changing interchanger.
Example IV
The present embodiment proposes message handling system 6, as shown in fig. 6, the processing system 6, comprising:
Sending module 61, for MPCP message and default message being merged, closed in the first optical communication terminal
And message, message will be merged and be sent to interchanger；
Memory module 62, for when merging message enters interchanger, record to enter the first moment value of interchanger, is closing
And message, when leaving interchanger, record leaves the second moment value of interchanger, by the difference of the first moment value and the second moment value
Deposit merges message, obtains updating message；
Forwarding module 63 extracts the address information updated in message for interchanger, will update message and be forwarded to and address
Corresponding second optical communication terminal of information.
In an implementation, in order to obtain residence time of the message in interchanger, in the processing system that the present embodiment proposes
Treatment process are as follows:
The time of the into and out interchanger of message, i.e. the first moment value, the second moment value, when by first are determined respectively
Quarter value, the difference of the second moment value save into message, to the second optical communication terminal send so that the second optical communication terminal is connecing
After receiving message, the difference for extracting the first moment value and the second moment value obtains residence time of the message in interchanger.
In view of existing MPCP message can not obtain and save when by interchanger entrance, leave interchanger when
Between, the processing method that the application proposes is especially before message enters interchanger, will in the first optical communication terminal for sending message
The default message of MPCP message and specific format merges, by means of specific message format in default message, so that merging
Message has the effect for saving and passing through exchange board time, so that MPCP message obtains in transmission process and saves process
The time of interchanger finally obtains exact residence time in the second optical communication terminal.
The MPCP (Multi-Point Control Protocol, Multi-point Control Protocol) used in above process is
The agreement of EPON MAC control sublayer.MPCP defines OLT (Optical Line Terminal, optical line terminal) and ONU
Controlling mechanism between (Optical Network Unit, optical network unit) carrys out effectively sending and receiving for coordination data.
EPON system is connected multiple data terminal equipments (Data Terminal Equipment, DTE) by optical fiber, is opened up
Flutterring structure is the asymmetric tree-like branched structure based on passive optical splitters.MPCP is exactly that this topological structure is made to be suitable for ether
A kind of controlling mechanism of net.Message based on the transmission of MPCP agreement is known as MPCP message.
Default message includes all polymorphic types, typically uses 1588 messages.1588 systems are a kind of master-slave synchronisation systems.?
In the synchronizing process of system, master clock cycle issues PTP time synchronization and temporal information, receives master clock end from clock port
The timestamp information that mouth is sent, system calculate the delay of principal and subordinate's wire time and principal and subordinate's time difference according to this information, and utilizing should
Time difference adjusts local zone time, so that the equipment time be made to keep frequency and phase with main equipment time consistency.1588 messages can
To realize Frequency Synchronization and Phase synchronization simultaneously.Characteristic based on 1588 messages above embodied by MPCP it is found that report
After text combines 1588 messages, based on the synchronizing characteristics that 1588 messages have, MPCP message is enabled to be carried through interchanger
Moment value, and then determine that message passes through the residence time of interchanger according to moment value.
The embodiment of the present invention proposes message handling system, comprising: in the first optical communication terminal, by MPCP message and in advance
If message merges, obtain merging message, when merging message enters interchanger, record enters the first moment value of interchanger
And the difference of the second moment value of interchanger is left, and it obtaining updating message, interchanger extracts the address information updated in message,
Message will be updated and be forwarded to the second optical communication terminal corresponding with address information.By sending before message enters interchanger
In first optical communication terminal of message, the default message of MPCP message and specific format is merged, by means of presetting message
Interior specific message format, so that merging message has the effect for saving and passing through exchange board time, so that MPCP message
The time by interchanger is obtained and saved in transmission process, and then based on residence time to the clock alignment of ONU or OLT.
Each serial number in above-described embodiment is for illustration only, the assembling for not representing each component or the elder generation in use process
Sequence afterwards.
The above description is only an embodiment of the present invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. message processing method, which is characterized in that the processing method, comprising:
In the first optical communication terminal, MPCP message and default message are merged, obtain merging message, message hair will be merged
It send to interchanger；
When merging message enters interchanger, record enters the first moment value of interchanger, when merging message leaves interchanger,
Record leaves the second moment value of interchanger, and the difference of the first moment value and the second moment value is stored in and merges message, is obtained more
New message；
Interchanger extracts the address information updated in message, will update message and is forwarded to the second optic communication corresponding with address information
Terminal；
Wherein, described to merge MPCP message and default message, it obtains merging message, comprising:
In the first optical communication terminal, it is equipped with the first module and the second module, after the first module receives message transmission request,
Message is sent to the second module and generates request, while default message is edited；
Second module generates and edits MPCP message after receiving message and generating request, and the MPCP message that editor is completed is sent
To the first module；
First module receives the tail portion that MPCP message content is connected to default message by the MPCP message that editor completes, and is handled
Merging message afterwards；
The processing method further include:
In the first module, tail portion content in default message is deleted, obtains simplifying treated default message, by MPCP
Message residue content is connected to the tail portion for default message of simplifying that treated, obtains that treated merges message；
It is described to delete tail portion content in default message, comprising:
It deletes and is located at the content after correctionfield in default message.
2. message processing method according to claim 1, which is characterized in that the treating method comprises:
When the first optical communication terminal obtains merging message, obtains and generate the first time stamp for merging the message moment, when by first
Between stamp with merge message together be sent to interchanger.
3. message processing method according to claim 2, which is characterized in that the processing method further include:
After second optical communication terminal receives merging message, message will be merged and be split as default message and MPCP message, obtained
Second timestamp of MPCP message.
4. message processing method according to claim 2, which is characterized in that the processing method further include:
Residence time using the difference of the first moment value and the second moment value as merging message in interchanger；
Obtain stamp at the first time, residence time and the second timestamp and value, according to be worth the clock to the second optical communication terminal
It is adjusted.
5. message processing method according to any one of claims 1 to 4, it is characterised in that:
When first optical communication terminal is optical line terminal, second optical communication terminal is optical network unit；Or
When first optical communication terminal is optical network unit, second optical communication terminal is optical line terminal.
6. message processing method according to any one of claims 1 to 4, it is characterised in that:
Optical splitter, ETH mouth of the optical splitter through interchanger and the are equipped between the interchanger and second optical communication terminal
The connection of one optical communication terminal.
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| CN102594683A (en) * | 2012-02-17 | 2012-07-18 | 黑龙江省电力有限公司 | Special network switching method and equipment with synchronous digital hierarchy (SDH) network accurate clock synchronization function |
| CN106982397A (en) * | 2017-05-16 | 2017-07-25 | 华北电力大学（保定） | Substation communication network and its time synchronized safety method based on passback detection |
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