CN107612650A - 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.Including：In the first optical communication terminal, MPCP messages and default message are merged, obtain 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, obtain updating message, interchanger extraction updates the address information in message, and renewal message is forwarded into 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 messages and specific format is merged, by means of specific message format in default message, so that merging message possesses the effect preserved by exchange board time, so that MPCP messages obtain in transmitting procedure and preserve the time by interchanger, and then the clock alignment based on residence time to ONU or OLT.
Description
Technical field
The invention belongs to the communications field, more particularly to message processing method and system.
Background technology
MPCP messages (multi-point control protocol, Multi-point Control Protocol) are EPON MAC control sublayers
Agreement, MPCP messages define the controlling mechanism between OLT and ONU, carry out effectively sending and receiving for coordination data.At present,
MPCP messages are needed through interchanger in the transmitting procedure between OLT and ONU, but MPCP messages can not be recorded in interchanger
Residence time, lead to not determine time of the MPCP messages in transmitting procedure, have impact on ONU or OLT clock alignment.
The content of the invention
In order to solve shortcoming and defect present in prior art, the invention provides obtain merging report based on MPCP messages
Text, the message processing method and system of the residence time in interchanger are obtained by merging the special packet form in message.
In order to reach above-mentioned technical purpose, on the one hand, the invention provides message processing method, the processing method, bag
Include：
In the first optical communication terminal, MPCP messages and default message are merged, obtains merging message, is reported merging
Text is sent to interchanger；
When merging message enters interchanger, record leaves exchange into the first moment value of interchanger merging message
During 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 renewal message；
Address information in interchanger extraction renewal message, the second light corresponding with address information is forwarded to by renewal message
Communication terminal.
Optionally, it is described to merge MPCP messages and default message, obtain merging message, including：
In the first optical communication terminal, provided with the first module and the second module, receiving message transmission in the first module please
After asking, message generation request is sent to the second module, while edlin is entered to default message；
Second module generates after message generation request is received and edits MPCP messages, will edit the MPCP messages of completion
Send to the first module；
First module receives the MPCP messages that editor completes, and MPCP message contents are connected to the afterbody of default message, obtained
Merging message after to processing.
Optionally, the processing method also includes：
In the first module, afterbody content in default message is deleted, obtains simplifying the default message after processing, will
MPCP message residue contents are connected to the afterbody of the default message after simplifying processing, the merging message after being handled.
Optionally, it is described to be deleted afterbody content in default message, including：
Delete and be located at the content after correctionfield in default message.
Optionally, the treating method comprises：
When the first optical communication terminal obtains merging message, the very first time stamp that generation merges the message moment is obtained, by the
One timestamp is sent to interchanger together with merging message.
Optionally, the processing method also includes：
After second optical communication terminal receives merging message, message will be merged and be split as default message and MPCP messages, obtained
Take the second timestamp of MPCP messages.
Optionally, the processing method also includes：
Using residence time of the difference of the first moment value and the second moment value as merging message in interchanger；
Obtain very first time stamp, 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 provided between the interchanger and second optical communication terminal, optical splitter is through interchanger
ETH mouths be connected with the first optical communication terminal.
On the other hand, present invention also offers message handling system, the processing system, including：
Sending module, in the first optical communication terminal, MPCP messages and default message being merged, merged
Message, message will be merged and sent to interchanger；
Memory module, for when merging message enters interchanger, record to merge into the first moment value of interchanger
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, obtain updating message；
Forwarding module, the address information in renewal message is extracted for interchanger, renewal message is forwarded to and believed with address
Second optical communication terminal corresponding to breath.
The beneficial effect that technical scheme provided by the invention is brought is：
By message enter interchanger before, send message the first optical communication terminal in, by MPCP messages with it is specific
The default message of form merges, by means of specific message format in default message so that merge message and possess preservation
By the effect of exchange board time, so that MPCP messages obtain in transmitting procedure and preserve the time by interchanger,
And then the clock alignment based on residence time to ONU or OLT.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in being described below to embodiment
It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of message processing method provided by the invention；
Fig. 2 is the process chart 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 schematic flow sheet of clock adjusting method provided by the invention；
Fig. 5 is optical communication network structural representation provided by the invention；
Fig. 6 is the structural representation of message handling system provided by the invention.
Embodiment
To make the structure of the present invention and advantage clearer, the structure of the present invention is made further below in conjunction with accompanying drawing
Description.
Embodiment one
The invention provides message processing method, the processing method, as shown in figure 1, including：
11st, in the first optical communication terminal, MPCP messages and default message are merged, obtains merging message, will close
And message is sent to interchanger；
12nd, when merging message enters interchanger, record leaves friendship into the first moment value of interchanger 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,
Obtain updating message；
13rd, the address information in interchanger extraction renewal message, renewal message is forwarded to corresponding with address information the
Two optical communication terminals.
In force, in order to obtain residence time of the message in interchanger, the processing method that the application proposes is：Respectively
Determine the time of the into and out interchanger of message, i.e. the first moment value, the second moment value, during by the first moment value, second
Quarter, the difference of value preserved into message, was sent to the second optical communication terminal so that the second optical communication terminal after message is received,
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 messages by interchanger when can not obtain and preserve 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 messages and specific format merges, by means of specific message format in default message so that merge
Message possesses the effect preserved by exchange board time, so that MPCP messages obtain in transmitting procedure and preserve process
The time of interchanger, definite residence time is finally obtained in the second optical communication terminal.
The MPCP (Multi-Point Control Protocol, Multi-point Control Protocol) used in above process is
EPON MAC control the agreement of sublayer.MPCP defines OLT (Optical Line Terminal, optical line terminal) and ONU
Controlling mechanism between (Optical Network Unit, optical network unit), carry out effectively sending and receiving for coordination data.
EPON system is connected multiple data terminal equipments (Data Terminal Equipment, DTE) by optical fiber, and it is opened up
It is the asymmetric tree-like branched structure based on passive optical splitters to flutter structure.MPCP is exactly this topological structure is applied to ether
A kind of controlling mechanism of net.Message based on the transmission of MPCP agreements is referred to as MPCP messages.
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 issue PTP time synchronizeds and temporal information, master clock end is received from clock port
The timestamp information that mouth is sent, system calculates the delay of principal and subordinate's wire time and principal and subordinate's time difference according to this information, and utilizes and be somebody's turn to do
Time difference adjusts local zone time, so that the equipment time keeps the 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 is understood, is reported by MPCP
Text is with reference to the synchronizing characteristics after 1588 messages, being had based on 1588 messages so that MPCP messages can be carried through interchanger
Moment value, and then determine that message passes through the residence time of interchanger according to moment value.
Optionally, it is described that MPCP messages and default message are merged into processing, the merging message after being handled, bag
Include：
21st, in the first optical communication terminal, provided with the first module and the second module, receive message in the first module and send
After request, message generation request is sent to the second module, while edlin is entered to default message；
22nd, the second module generates after message generation request is received and edits MPCP messages, will edit the MPCP of completion
Message is sent to the first module；
23rd, the first module receives the MPCP messages that editor completes, and MPCP message contents are connected to the afterbody of default message,
Merging message after being handled.
In force, obtained in step 11 merge message the step of in the first optical communication terminal, by being arranged on 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, it is respectively used to edit 1588 messages and edits MPCP messages, and the first module is additionally operable to 1588 messages that will obtain
Merged with MPCP messages, obtain merging message.
Handling process in first module and the second module is as shown in Figure 2.
After the first module receives message transmission request, message generation request is sent to the second module, while to presetting
Message enters edlin；
Second module generates after message generation request is received and edits MPCP messages, will edit the MPCP messages of completion
Send to the first module；
First module receives the MPCP messages that editor completes, and MPCP message contents are connected to the afterbody of default message, obtained
Merging message after to processing.
Optionally, the processing method also includes：
In the first module, afterbody content in default message is deleted, obtains simplifying the default message after processing, will
MPCP message residue contents are connected to the afterbody of the default message after simplifying processing, the merging message after being handled.
In force, understood based on above-described embodiment, obtaining merging the process of message needs to add in 1588 message tails
MPCP messages, i.e., it is that 1588 messages and MPCP messages join end to end in structure.But in actual mechanical process, 1588 reports
Some contents of literary afterbody realize no any effect for whole processing method, therefore can delete the contents of the section,
So as to play the effect for simplifying message content.Simultaneously because message entire content is simplified so that relative to the message before simplifying,
Simplifying the transmission time of rear message can necessarily be reduced, so as 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. afterbody of 1588 messages, actual mechanical process
In can delete in default message be located at correctionfield after content.Specific content of deleting refers to Fig. 3, shallow in Fig. 3
The content of color part is the part that can be deleted.
Wherein, correctionfield domains are the residence times for being stored in interchanger.
The embodiment of the present invention proposes message processing method, including：In the first optical communication terminal, by MPCP messages and in advance
If message merges, obtain merging message, when merging message enters interchanger, first moment value of the record into interchanger
And the difference of the second moment value of interchanger is left, and obtaining updating message, interchanger extraction updates the address information in message,
Renewal message is forwarded to the second optical communication terminal corresponding with address information.By before message enters interchanger, sending
In first optical communication terminal of message, the default message of MPCP messages and specific format is merged, by means of presetting message
Interior specific message format so that merge message and possess the effect preserved by exchange board time, so that MPCP messages
Obtained in transmitting procedure and preserve the time by interchanger, and then the clock alignment based on residence time to 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 transmitting procedure of the message between the first optical communication terminal, interchanger and the second optical communication terminal is merged, to second
Optical communication terminal is the method that the clock of message recipient is adjusted.The step of specific clock adjusting method, is such as Fig. 4 institutes
Show.
41st, when the first optical communication terminal obtains merging message, the very first time stamp that generation merges the message moment is obtained, will
The very first time stabs to be sent to interchanger together with merging message；
42nd, after the second optical communication terminal receives merging message, message will be merged and be split as default message and MPCP messages,
Obtain the second timestamp of MPCP messages；
43rd, the difference based on the first moment value and the second moment value is obtained when merging resident in interchanger of message
Between；
44th, obtain very first time stamp, residence time and the second timestamp and value, according to be worth to the second optical communication terminal
Clock be adjusted.
In force, in order to ensure the ageing of message transmissions, it is necessary to frequent to message transmitting party, the clock of recipient
It is adjusted.By the first optical communication terminal, interchanger, the second optical communication terminal transmission direction exemplified by, it is whole to the second optic communication
The step of clock at end is adjusted is as follows：
First, it is determined that merge message from the first optical communication terminal send at the time of, the moment is by the first optical communication terminal
First module merges to message to be obtained merging very first time stamp corresponding to message after processing and determines that very first time stamp follows conjunction
And message is transmitted to the second optical communication terminal through interchanger.
Then, 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, using difference as obtaining residence time of the merging message in interchanger.
Again, it is determined that in the second optical communication terminal, message will be merged and be decomposed into prolonging for default message and MPCP message
The slow time, the merging process for merging message and the decomposable process for merging message are reciprocal, therefore according to step 21- in previous embodiment
23 content is understood, when being decomposed to merging message, will merge message through the first module in the second optical communication terminal first
1588 messages and MPCP messages are decomposed into, are then analyzed MPCP message transmissions to the second module.In the first decomposition module
Second timestamp of the existing time as MPCP messages between the second module analysis.
Finally, the very first time is stabbed, the second timestamp and residence time and value as the second optical communication terminal when
Clock value, complete the adjustment to the second optical communication terminal.
In above process, having taken into full account influences to merge many factors of the message in one-way transmission process transmission time,
And the clock of the second optical communication terminal is adjusted with reference to many factors so that the second optical communication terminal after adjustment is follow-up
In the transmission process for merging message, order, which merges message, has accurate time parameter, improves whole 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 provided between the interchanger and second optical communication terminal
It is connected with the first optical communication terminal.
In force, 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 is then exchanged the position of interchanger and optical line terminal so that an ETH mouth of interchanger
(i.e. Ethernet interface, Ethernet mouths) is connected, and optical splitter is connected with an ETH mouth of interchanger, and then through an optical splitter
Connect multiple optical network units.So relative to prior art so that an optical line terminal can connect more optical-fiber networks
Unit, without changing interchanger with regard to the flaring structure of optical line terminal can be completed.
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 force, 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 build the optical communication network for transmitting message.
The embodiment of the present invention proposes optical communication network structure, is included in the interchanger and second optical communication terminal
Between be provided with optical splitter, ETH mouth of the optical splitter through interchanger is connected with the first optical communication terminal.By by interchanger and optical link
The position of terminal is exchanged so that the ETH mouth connection of interchanger, light splitting is connected with an ETH mouth of interchanger
Device, and then connect multiple optical network units through an optical splitter.So relative to prior art so that an optical line terminal energy
More optical network units are enough connected, without changing interchanger with regard to the flaring structure of optical line terminal can be completed.
Example IV
The present embodiment proposes message handling system 6, as shown in fig. 6, the processing system 6, including：
Sending module 61, in the first optical communication terminal, MPCP messages and default message being merged, closed
And message, message will be merged and sent to interchanger；
Memory module 62, for when merging message enters interchanger, record to close into the first moment value of interchanger
And message, when leaving interchanger, record leaves the second moment value of interchanger, by the first moment value and the difference of the second moment value
Deposit merges message, obtains updating message；
Forwarding module 63, the address information in renewal message is extracted for interchanger, renewal message is forwarded to and address
Second optical communication terminal corresponding to information.
In force, in order to obtain residence time of the message in interchanger, in the processing system that the present embodiment proposes
Processing procedure is：
The time of the into and out interchanger of message, i.e. the first moment value, the second moment value, during by first are determined respectively
Quarter value, the difference of the second moment value preserve 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 messages by interchanger when can not obtain and preserve 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 messages and specific format merges, by means of specific message format in default message so that merge
Message possesses the effect preserved by exchange board time, so that MPCP messages obtain in transmitting procedure and preserve process
The time of interchanger, definite residence time is finally obtained in the second optical communication terminal.
The MPCP (Multi-Point Control Protocol, Multi-point Control Protocol) used in above process is
EPON MAC control the agreement of sublayer.MPCP defines OLT (Optical Line Terminal, optical line terminal) and ONU
Controlling mechanism between (Optical Network Unit, optical network unit), carry out effectively sending and receiving for coordination data.
EPON system is connected multiple data terminal equipments (Data Terminal Equipment, DTE) by optical fiber, and it is opened up
It is the asymmetric tree-like branched structure based on passive optical splitters to flutter structure.MPCP is exactly this topological structure is applied to ether
A kind of controlling mechanism of net.Message based on the transmission of MPCP agreements is referred to as MPCP messages.
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 issue PTP time synchronizeds and temporal information, master clock end is received from clock port
The timestamp information that mouth is sent, system calculates the delay of principal and subordinate's wire time and principal and subordinate's time difference according to this information, and utilizes and be somebody's turn to do
Time difference adjusts local zone time, so that the equipment time keeps the 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 is understood, is reported by MPCP
Text is with reference to the synchronizing characteristics after 1588 messages, being had based on 1588 messages so that MPCP messages can 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, including：In the first optical communication terminal, by MPCP messages and in advance
If message merges, obtain merging message, when merging message enters interchanger, first moment value of the record into interchanger
And the difference of the second moment value of interchanger is left, and obtaining updating message, interchanger extraction updates the address information in message,
Renewal message is forwarded to the second optical communication terminal corresponding with address information.By before message enters interchanger, sending
In first optical communication terminal of message, the default message of MPCP messages and specific format is merged, by means of presetting message
Interior specific message format so that merge message and possess the effect preserved by exchange board time, so that MPCP messages
Obtained in transmitting procedure and preserve the time by interchanger, and then the clock alignment based on residence time to ONU or OLT.
Each sequence number in above-described embodiment is for illustration only, does not represent the elder generation during the assembling or use of each part
Order afterwards.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, it is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. message processing method, it is characterised in that the processing method, including：
In the first optical communication terminal, MPCP messages and default message are merged, obtain merging message, message hair will be merged
Deliver 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；
Address information in interchanger extraction renewal message, the second optic communication corresponding with address information is forwarded to by renewal message
Terminal.
2. message processing method according to claim 1, it is characterised in that described to carry out MPCP messages and default message
Merge, obtain merging message, including：
In the first optical communication terminal, provided with the first module and the second module, received in the first module after message sends request,
Message generation request is sent to the second module, while edlin is entered to default message；
Second module is generated after message generation request is received and edits MPCP messages, and the MPCP messages for editing completion are sent
To the first module；
First module receives the afterbody that MPCP message contents are connected to default message by the MPCP messages that editor completes, and is handled
Merging message afterwards.
3. message processing method according to claim 2, it is characterised in that the processing method also includes：
In the first module, afterbody content in default message is deleted, obtains simplifying the default message after processing, by MPCP
Message residue content is connected to the afterbody of the default message after simplifying processing, the merging message after being handled.
4. message processing method according to claim 3, it is characterised in that described to carry out afterbody content in default message
Delete, including：
Delete and be located at the content after correctionfield in default message.
5. message processing method according to claim 1, it is characterised in that the treating method comprises：
When the first optical communication terminal obtains merging message, the very first time stamp that generation merges the message moment is obtained, during by first
Between stamp with merge message together with send to interchanger.
6. message processing method according to claim 5, it is characterised in that the processing method also includes：
After second optical communication terminal receives merging message, message will be merged and be split as default message and MPCP messages, obtained
Second timestamp of MPCP messages.
7. message processing method according to claim 5, it is characterised in that the processing method also includes：
Using residence time of the difference of the first moment value and the second moment value as merging message in interchanger；
Obtain very first time stamp, residence time and the second timestamp and value, according to be worth the clock to the second optical communication terminal
It is adjusted.
8. according to the message processing method described in any one of claim 1 to 7, 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.
9. according to the message processing method described in any one of claim 1 to 7, it is characterised in that：
Optical splitter, ETH mouth and of the optical splitter through interchanger are provided between the interchanger and second optical communication terminal
One optical communication terminal connects.
10. message handling system, it is characterised in that the processing system, including：
Sending module, in the first optical communication terminal, MPCP messages and default message to be merged, obtain merging report
Text, message will be merged and sent to interchanger；
Memory module, for when merging message enters interchanger, record to merge message into the first moment value of interchanger
When leaving 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 closed
And message, obtain updating message；
Forwarding module, the address information in renewal message is extracted for interchanger, renewal message is forwarded to and address information pair
The second optical communication terminal answered.
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| CN106656852A (en) * | 2016-12-30 | 2017-05-10 | 国网浙江省电力公司绍兴供电公司 | Circuit structure for implementing alternative of messages |
| CN106685565A (en) * | 2016-12-30 | 2017-05-17 | 国网浙江省电力公司绍兴供电公司 | Method and system for achieving transparent clock transmission of communication network |
| 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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| CN108965120A (en) * | 2018-06-26 | 2018-12-07 | 新华三技术有限公司合肥分公司 | Route advertising method, device, communication equipment and storage medium |
| CN108965120B (en) * | 2018-06-26 | 2021-03-09 | 新华三技术有限公司合肥分公司 | Route notification method, device, communication equipment and storage medium |
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