CN103795507A - Instruction timeout retransmission method and instruction timeout retransmission system of EPON system - Google Patents
Instruction timeout retransmission method and instruction timeout retransmission system of EPON system Download PDFInfo
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- CN103795507A CN103795507A CN201210419279.8A CN201210419279A CN103795507A CN 103795507 A CN103795507 A CN 103795507A CN 201210419279 A CN201210419279 A CN 201210419279A CN 103795507 A CN103795507 A CN 103795507A
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Abstract
The invention discloses an instruction timeout retransmission method and an instruction timeout retransmission system of an EPON system. The instruction timeout retransmission method utilizes an instruction polling table used for updating instructions in real time, and one time of polling is executed in a preset time interval. In each time of polling, an office terminal machine sends all the instructions waiting for the sending state to a remote terminal machine in order, and then the instructions with successful configuration and overmuch time of sending are eliminated out of the instruction polling table. As for the instructions with overmuch time of sending, the office terminal machine sends instruction failure information to the remote terminal machine. According to the instruction timeout retransmission method and the instruction timeout retransmission system of the EPON system, a defect that sending of other instructions is influenced by lost of a return message of one instruction can be avoided via polling of all the instructions so that reliability and efficiency in sending of the instructions are enhanced.
Description
Technical field
The present invention relates to EPON system, particularly the overtime repeating method of a kind of instruction of EPON system and the overtime retransmission system of instruction.
Background technology
EPON, i.e. Ethernet passive optical network.In EPON system (Ethernet passive optical network system), central office terminal is connected with remote termination by EPON, what between them, the signaling format of communication adopted is two layers of Ethernet protocol, various control commands, sent to the remote termination of appointment by central office terminal, after remote termination receives instruction, then return to response message.Double layer network transmission due to what adopt, when network occurs that not smooth, busy or congested time, it is inevitable that message dropping occurs.The obstruction of network is sent to remote termination except causing returned packet loss also may cause instruction to fail, and in this process of responding at wait remote termination, user can only wait for the result of its operation, if and overtime re-transmission is carried out in the instant instruction to before, when user waits for so, will greatly extend, this is greatly unfavorable to user's experience.The more important thing is, if it is very busy just to run into some moment networks, after so overtime re-transmission, still has very large probability generation instruction and do not arrive the situation of remote termination or the situation of configuration failure, reduced the reliability that instruction transmits.And cannot other instructions be sent and be configured owing to waiting in the process of returned packet, greatly reduce efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to occur not smooth in order to overcome prior art at EPON, the returned packet that cannot receive remote termination busy or congested time also cannot send with other instructions in the situation of confirmation instruction configuration successful, cause the reliability of instruction transmission and the defect of Efficiency Decreasing, a kind of overtime repeating method of instruction and the overtime retransmission system of instruction of EPON system are provided, by the poll of all instructions having been avoided to when unsuccessful or returned packet is lost when the transmission of an instruction or on the configuration of remote termination affecting the defect that other instructions send, reliability and efficiency that instruction transmits are improved.
The present invention solves above-mentioned technical problem by following technical proposals:
The invention provides a kind of overtime repeating method of instruction of EPON system, wherein any instruction sends to a remote termination by a central office terminal, be used for configuring this remote termination, its feature is, the overtime repeating method of this instruction has utilized an instruction polling list polling table, the instruction of the new configuration of this instruction polling list polling table add in real time the instruction of deleting configuration done state, and by the new initial value of the transmission times of the instruction of configuration be made as zero, the state to be sent such as state is made as, carry out a S every a Preset Time interval
101, the overtime repeating method of this instruction comprises the following steps:
S
101, this instruction polling list polling table the state to be sent such as changes to by the state of instruction that transmits timeout mode;
S
102, judge the instruction of states to be sent such as whether having in this instruction polling list polling table, judged result be no in the situation that flow process stop, perform step S for be in the situation that in judged result
103;
S
103, using etc. in the instruction of state to be sent sequence in a most front instruction as present instruction, check the transmission times of this present instruction, in the time that the transmission times of this present instruction is more than or equal to a maximum retransmission, perform step S
104, in the time that the transmission times of this present instruction is less than this maximum retransmission, perform step S
105;
S
104, this central office terminal sends an instruction failure information to this remote termination, and the state of this present instruction changed to after configuration done state to execution step S
102;
S
105, whether successfully this central office terminal send this present instruction and ask this remote termination to return for determining this present instruction configuration information to this remote termination;
S
106, receive the information of the configuration successful that this remote termination sends in a default duration time, execution step S
107, in the time receiving the information of the configuration failure that this remote termination sends or do not receive any information that this remote termination sends in a default duration, execution step S
108;
S
107, this central office terminal by the state of this present instruction change to configuration done state after, carry out this step S
102;
S
108, this central office terminal adds the transmission times of this present instruction in the lump and preserves;
S
109, the state of this present instruction changes to transmission timeout mode by this central office terminal, carries out this step S
102.
Those skilled in the art are to be understood that, in EPON system, user has configured after an item number certificate, central office terminal can be encapsulated into this configuration data in signaling frame, by double layer network by optical-fiber network medium to remote termination transmission, and in the present invention central office terminal is encapsulated this configuration data and to remote termination transmit send an instruction referred to as this central office terminal to this remote termination, and, corresponding to different instructions, this remote termination may be different remote termination.This instruction polling list polling table automatically by all instructions by any ordering rule sequence, hold intelligiblely, sequence is just for the ease of at this step S
103in choose an instruction as this present instruction, the present invention does not impose any restrictions for this ordering rule, only needs all instructions to be sorted successively.The effect of the information of this configuration successful in the present invention and the information of this configuration failure is equivalent to returned packet of the prior art, the configuration status by instruction on this remote termination that can be clear and definite returns to this central office terminal, and determines according to different configuration statuses which subsequent step this central office terminal carries out.
Wherein, arrange this Preset Time interval can make when network occur temporary transient when congested, can continuous retransmission instruction and further aggravate congestion condition.And pass through said method, sending after this present instruction, in the time that this present instruction fails this remote termination of configuration, this present instruction of continuous retransmission is not repeatedly at short notice, so just avoid the transmission failure because of a certain instruction, and affected the transmission of other instructions.
Preferably, this Preset Time interval is greater than 5 seconds.
Wherein this Preset Time interval will meet and tries one's best under few prerequisite that takies cpu resource, the poll last time instruction that sends and configure that fails again in the short period of time, the spaced too short network congestion that easily causes a certain moment of this Preset Time simultaneously, and a lot of situation of instruction of state to be sent such as can not be suitable for.Therefore this Preset Time interval is greater than 5 seconds, and according to actual conditions, shorter Preset Time interval is set as far as possible.
The present invention also provides a kind of instruction of EPON system overtime retransmission system, and wherein any instruction sends to a remote termination by a central office terminal, and for configuring this remote termination, its feature is, the overtime retransmission system of this instruction comprises:
One instruction poll table unit, for the instruction of the new configuration of add in real time the instruction of deleting configuration done state, and by the new initial value of the transmission times of the instruction of configuration be made as zero, the state to be sent such as state is made as;
One start unit, for every this instruction poll table unit of a Preset Time blank(ing) instruction, the state of instruction that transmits timeout mode being changed to etc. to state to be sent, then sends one first instruction to status checkout unit;
This status checkout unit, for judging after this first instruction whether this instruction poll table unit the instruction of state to be sent such as has receiving, do not carry out any operation in judged result while being no, send one second instruction to instruction sending unit in judged result when being;
This instruction sending unit, for in the time receiving this second instruction, using etc. in the instruction of state to be sent sequence in a most front instruction as present instruction, check the transmission times of this present instruction, in the time that the transmission times of this present instruction is more than or equal to a maximum retransmission, send an instruction failure information to a remote termination, and the state of this present instruction is changed to configuration done state, then send this first instruction to this status checkout unit, in the time that the transmission times of this present instruction is less than this maximum retransmission, sending this present instruction to this remote termination request whether successfully returns for determining this present instruction configuration information, this instruction sending unit also when receiving the information of the configuration successful that this remote termination sends in a default duration, the state of this present instruction is changed to configuration done state, then send this first instruction to this status checkout unit, in the time receiving the information of the configuration failure that this remote termination sends or do not receive any information that this remote termination sends in a default duration, the transmission times of this present instruction is added in the lump and preserved, the state of this present instruction is changed to transmission timeout mode, then send this first instruction to this status checkout unit.
Preferably, this Preset Time interval is greater than 5 seconds.
Wherein this Preset Time interval will meet few cpu resource that takies of trying one's best, therefore this Preset Time interval is greater than 5 seconds.In order to be again polled in the short period of time the last time instruction that sends and configure that fails, can, under this Preset Time interval is greater than the prerequisite of 5 seconds, according to actual conditions, shorter Preset Time interval be set as far as possible.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtains the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
The overtime repeating method of instruction of EPON system of the present invention and the overtime retransmission system of instruction, by the poll of all instructions having been avoided to when unsuccessful or returned packet is lost when the transmission of an instruction or on the configuration of remote termination affecting the defect that other instructions send, reliability and efficiency that instruction transmits are improved.
Accompanying drawing explanation
Fig. 1 is the flow chart of the overtime repeating method of instruction of the EPON system of the embodiment of the present invention 1.
Fig. 2 is the schematic diagram of the overtime retransmission system of instruction of the EPON system of the embodiment of the present invention 2.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
The overtime repeating method of instruction of the EPON system of the present embodiment, wherein any instruction sends to a remote termination by a central office terminal, be used for configuring this remote termination, the overtime repeating method of this instruction has utilized an instruction polling list polling table, the instruction of the new configuration of this instruction polling list polling table add in real time the instruction of deleting configuration done state, and by the initial value of transmission times of the newly instruction of configuration be made as zero, the state to be sent such as state is made as, carry out a S every a Preset Time interval
101, shown in figure 1, the overtime repeating method of this instruction comprises the following steps:
S
101, this instruction polling list polling table the state to be sent such as changes to by the state of instruction that transmits timeout mode;
S
102, judge the instruction of states to be sent such as whether having in this instruction polling list polling table, judged result be no in the situation that flow process stop, perform step S for be in the situation that in judged result
103;
S
103, using etc. in the instruction of state to be sent sequence in a most front instruction as present instruction, check the transmission times of this present instruction, in the time that the transmission times of this present instruction is more than or equal to a maximum retransmission, perform step S
104, in the time that the transmission times of this present instruction is less than this maximum retransmission, perform step S
105;
S
104, this central office terminal sends an instruction failure information to this remote termination, and the state of this present instruction changed to after configuration done state to execution step S
102;
S
105, whether successfully this central office terminal send this present instruction and ask this remote termination to return for determining this present instruction configuration information to this remote termination;
S
106, receive the information of the configuration successful that this remote termination sends in a default duration time, execution step S
107, in the time receiving the information of the configuration failure that this remote termination sends or do not receive any information that this remote termination sends in a default duration, execution step S
108;
S
107, this central office terminal by the state of this present instruction change to configuration done state after, carry out this step S
102;
S
108, this central office terminal adds the transmission times of this present instruction in the lump and preserves;
S
109, the state of this present instruction changes to transmission timeout mode by this central office terminal, carries out this step S
102.
It will be appreciated by those skilled in the art that this S
102in flow process stop referring to last this step S that carries out
101after the flow process that should carry out finish, but ought carry out this step S next time
101time still by each step of above-mentioned flow performing.
Preferably, this Preset Time interval is greater than 5 seconds.
Embodiment 2
Shown in figure 2, the overtime retransmission system 1 of the instruction of the EPON system of the present embodiment, wherein any instruction sends to a remote termination by a central office terminal, and for configuring this remote termination, its feature is, and the overtime retransmission system 1 of this instruction comprises:
One instruction poll table unit 11, for the instruction of the new configuration of add in real time the instruction of deleting configuration done state, and by the new initial value of the transmission times of the instruction of configuration be made as zero, the state to be sent such as state is made as;
One start unit 12, for every this instruction poll table unit 11 of a Preset Time blank(ing) instruction, the state of instruction that transmits timeout mode being changed to etc. to state to be sent, then sends one first instruction to status checkout unit 13;
This status checkout unit 13, for judging after this first instruction whether this instruction poll table unit 11 instruction of state to be sent such as has receiving, do not carry out any operation in judged result while being no, send one second instruction to instruction sending unit 14 in judged result when being;
This instruction sending unit 14, for in the time receiving this second instruction, using etc. in the instruction of state to be sent sequence in a most front instruction as present instruction, check the transmission times of this present instruction, in the time that the transmission times of this present instruction is more than or equal to a maximum retransmission, send an instruction failure information to a remote termination, and the state of this present instruction is changed to configuration done state, then send this first instruction to this status checkout unit 13, in the time that the transmission times of this present instruction is less than this maximum retransmission, sending this present instruction to this remote termination request whether successfully returns for determining this present instruction configuration information, this instruction sending unit 14 also when receiving the information of the configuration successful that this remote termination sends in a default duration, the state of this present instruction is changed to configuration done state, then send this first instruction to this status checkout unit 13, in the time receiving the information of the configuration failure that this remote termination sends or do not receive any information that this remote termination sends in a default duration, the transmission times of this present instruction is added in the lump and preserved, the state of this present instruction is changed to transmission timeout mode, then send this first instruction to this status checkout unit 13.
Preferably, this Preset Time interval is greater than 5 seconds.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these execution modes, but these changes and modification all fall into protection scope of the present invention.
Claims (4)
1. the overtime repeating method of the instruction of an EPON system, wherein instruction by a central office terminal to a remote termination send, for configuring this remote termination, it is characterized in that, the overtime repeating method of this instruction has utilized an instruction polling list polling table, the instruction of the new configuration of this instruction polling list polling table add in real time the instruction of deleting configuration done state, and by the initial value of transmission times of the newly instruction of configuration be made as zero, the state to be sent such as state is made as, carry out a S every a Preset Time interval
101, the overtime repeating method of this instruction comprises the following steps:
S
101, this instruction polling list polling table the state to be sent such as changes to by the state of instruction that transmits timeout mode;
S
102, judge the instruction of states to be sent such as whether having in this instruction polling list polling table, judged result be no in the situation that flow process stop, perform step S for be in the situation that in judged result
103;
S
103, using etc. in the instruction of state to be sent sequence in a most front instruction as present instruction, check the transmission times of this present instruction, in the time that the transmission times of this present instruction is more than or equal to a maximum retransmission, perform step S
104, in the time that the transmission times of this present instruction is less than this maximum retransmission, perform step S
105;
S
104, this central office terminal sends an instruction failure information to this remote termination, and the state of this present instruction changed to after configuration done state to execution step S
102;
S
105, whether successfully this central office terminal send this present instruction and ask this remote termination to return for determining this present instruction configuration information to this remote termination;
S
106, receive the information of the configuration successful that this remote termination sends in a default duration time, execution step S
107, in the time receiving the information of the configuration failure that this remote termination sends or do not receive any information that this remote termination sends in a default duration, execution step S
108;
S
107, this central office terminal by the state of this present instruction change to configuration done state after, carry out this step S
102;
S
108, this central office terminal adds the transmission times of this present instruction in the lump and preserves;
S
109, the state of this present instruction changes to transmission timeout mode by this central office terminal, carries out this step S
102.
2. the overtime repeating method of instruction as claimed in claim 1, is characterized in that, this Preset Time interval is greater than 5 seconds.
3. the overtime retransmission system of the instruction of EPON system, wherein instruction by a central office terminal to a remote termination send, for configuring this remote termination, it is characterized in that, the overtime retransmission system of this instruction comprises:
One instruction poll table unit, for the instruction of the new configuration of add in real time the instruction of deleting configuration done state, and by the new initial value of the transmission times of the instruction of configuration be made as zero, the state to be sent such as state is made as;
One start unit, for every this instruction poll table unit of a Preset Time blank(ing) instruction, the state of instruction that transmits timeout mode being changed to etc. to state to be sent, then sends one first instruction to status checkout unit;
This status checkout unit, for judging after this first instruction whether this instruction poll table unit the instruction of state to be sent such as has receiving, do not carry out any operation in judged result while being no, send one second instruction to instruction sending unit in judged result when being;
This instruction sending unit, for in the time receiving this second instruction, using etc. in the instruction of state to be sent sequence in a most front instruction as present instruction, check the transmission times of this present instruction, in the time that the transmission times of this present instruction is more than or equal to a maximum retransmission, send an instruction failure information to a remote termination, and the state of this present instruction is changed to configuration done state, then send this first instruction to this status checkout unit, in the time that the transmission times of this present instruction is less than this maximum retransmission, sending this present instruction to this remote termination request whether successfully returns for determining this present instruction configuration information, this instruction sending unit also when receiving the information of the configuration successful that this remote termination sends in a default duration, the state of this present instruction is changed to configuration done state, then send this first instruction to this status checkout unit, in the time receiving the information of the configuration failure that this remote termination sends or do not receive any information that this remote termination sends in a default duration, the transmission times of this present instruction is added in the lump and preserved, the state of this present instruction is changed to transmission timeout mode, then send this first instruction to this status checkout unit.
4. the overtime retransmission system of instruction as claimed in claim 3, is characterized in that, this Preset Time interval is greater than 5 seconds.
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| CN112631659A (en) * | 2020-12-07 | 2021-04-09 | 苏州浪潮智能科技有限公司 | Method, system, equipment and medium for processing instruction overtime |
| CN113486077A (en) * | 2021-06-11 | 2021-10-08 | 北京空间飞行器总体设计部 | Method for processing spacecraft power system test data by using real-time database |
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| CN113486077B (en) * | 2021-06-11 | 2023-08-22 | 北京空间飞行器总体设计部 | Method for processing spacecraft power system test data by using real-time database |
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Effective date of registration: 20201117 Address after: 221700 4-1-110-shop, Nanyuan new town, Fengxian County, Xuzhou City, Jiangsu Province Patentee after: Song Yixiao Address before: Songjiang District shihudong Town Tower Road 201617 min 579 Lane Shanghai No. -26 Patentee before: Phicomm (Shanghai) Co.,Ltd. |
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