CN103391488A - Method for intelligently releasing bandwidth in passive optical network - Google Patents
Method for intelligently releasing bandwidth in passive optical network Download PDFInfo
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- CN103391488A CN103391488A CN2013103456878A CN201310345687A CN103391488A CN 103391488 A CN103391488 A CN 103391488A CN 2013103456878 A CN2013103456878 A CN 2013103456878A CN 201310345687 A CN201310345687 A CN 201310345687A CN 103391488 A CN103391488 A CN 103391488A
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Abstract
The invention provides a method for intelligently releasing bandwidth in a passive optical network. According to the method, a passive optical network manager enables an optical network terminal to hang up idle links automatically, built a link when uplink data exist, and release a link when no uplink data exist; when the condition that a user's data message is required to be sent through a wide area network is detected, a linking request can be built automatically to arouse an opposite side to built a communication passage with the user; idle links can be monitored in a real-time manner; links, of which the idling time is longer than a set value, are hung up automatically. According to the method, the requirement of the user with seldom data transmission or specified time data transmission can be met, so as to effectively utilize bandwidth resource.
Description
Technical field
The present invention relates to passive optical network terminal (ONU) use field, a kind of conversation controlling method that particularly the online wide area network of circuit switching is linked.The method effectively utilizes the network bandwidth according to detecting the demand of user to wide area network.
Background technology
EPON is a kind of optical fiber access technology of point-to-multipoint, this optical fiber access technology has been cancelled the active equipment between local side and client, it can avoid the electromagnetic interference of external equipment well, reduce the failure rate of circuit and external equipment, improve the reliability of system, can save maintenance cost simultaneously.Relative technological products more and more is subjected to the welcome in market in recent years, will replace at leisure traditional active network communication equipment.
At present domestic passive optical-fiber network technology application is more extensively EPON(Ethernet Passive Optical Network Ethernet passive optical network), the passive optical-fiber network technical standard mainly can be divided into APON(ATM PON ATM Passive Optical Network), BPON(Broadband PON broadband passive optical network), GPON(Gigabit PON Gigabit Passive Optical Network) and four kinds of technology of EPON.APON, BPON and GPON standard are all worked out by International Telecommunications Union, from the APON standard evolution, are first the BPON standard, then develop into up-to-date GPON standard now; The EPON standard is worked out by the international electronic apparatus IEEE of IEEE.EPON is based on Ethernet and IP agreement, and the provisional capital, up and down is 1.25Gbps, also has 10Gbps simultaneously; GPON can support the various protocols such as ATM, TDM, SONET/SDH, Ethernet, and up-downgoing is respectively 1.25Gbps, 2.5Gbps, 10Gbps.
in the passive light network terminal use procedure, mainly complete local data is sent to long-range server or other terminal by WAN, and receive or download the data that descended by long-range server or other terminal by WAN, in order to express easily, in present specification, passive light network terminal is called upstream data to long-range server or other terminal transmission data, cross the data that WAN receives or download is descended by long-range server or other terminal and be called downlink data, accordingly, the direction that passive light network terminal outwards sends data is called up direction, the direction that receives data is called down direction, uplink port and downlink port are equally also arranged.
Although EPON is being greatly improved aspect communication quality, reliability now, but passive light network terminal is controlled automatically owing to can not carrying out flow, often can detect while there is no flow while not needing flow in other words, also with bandwidth occupancy, will bring higher cost to EPON work like this, can not meet user's demand.
Summary of the invention
To the objective of the invention is in order overcoming the above problems, to the invention provides the method for intelligence release bandwidth in a kind of EPON.
Technical scheme of the present invention is: in a kind of EPON, intelligence discharges the method for bandwidth, by the EPON manager, makes Optical Network Terminal hang up voluntarily idle link; Comprise the following steps:
Step 1, by the EPON manager, Optical Network Terminal is carried out initialization;
Step 2, by the EPON manager, the flow of the up direction of Optical Network Terminal is monitored;
If step 3 is within the time of setting, up direction being detected flow, to opposite end, initiates linking request, network connection state is set for connecting; If within the time of setting, up direction being detected does not have flow, hangs up the link of up direction, network state is set for hanging up;
Step 4, continuation are monitored the flow of the up direction of Optical Network Terminal by the EPON manager;
If step 5 is within the time of setting, up direction being detected flow, if network connection state is for connecting at this moment, turn to step 4,, if network connection state is for hanging up at this moment, to opposite end, initiate linking request, and network connection state is set for connecting, turn to step 4;
If within the time of setting, up direction being detected does not have flow,, if network connection state, for connecting, is hung up the link of up direction at this moment, network state is set for hanging up, turn to step 4, if network connection state, for hanging up, turns to step 4 at this moment.
Further, in above-mentioned EPON, intelligence discharges in the method for bandwidth: in described step 2, by by the EPON manager, the flow of the up direction of Optical Network Terminal being monitored, comprise: create a thread and adopt the mode of poll to check the data link output queue that will monitor, if formation is sky represent countless according to output, expression is without flow, otherwise flow is arranged.
Further, in above-mentioned EPON, intelligence discharges in the method for bandwidth: in described step 3, " network connection state " variable is a temporary variable, exist in internal memory, after outage, it can be cleared, after powering on and restarting, system can be opened up again an internal memory for it and be stored it.
Further, in above-mentioned EPON, intelligence discharges in the method for bandwidth: in described step 3: " initiating linking request to opposite end " is exactly to send a pppoe request message by terminal; " hang up the link of up direction " the monitor data Link State being set is disconnect, removes IP, dns address that this chain route server distributes to it.
When the present invention can detect the user data message and will send by wide area network, can automatically initiate linking request and wake the other side up and set up with it communication port, also can carry out Real Time Monitoring to idle link, hang up voluntarily the link that free time surpasses set point.By such chainlink control method, can meet some has once in a while transfer of data or, in the user's request of special time the transmission of data, effectively utilizes broadband resource.
Below in conjunction with specific embodiment, the present invention is described in more detail.
Description of drawings
Fig. 1 is the overall flow figure that uses this method.
Fig. 2 is the main flow chart of the embodiment of the present invention one.
Fig. 3 be the embodiment of the present invention one from flow chart.
Embodiment
Embodiment 1, and the present embodiment is a kind of intelligent method for releasing based on the EPON band, comprises the following steps:
Step 1, by the EPON manager, Optical Network Terminal is carried out initialization.
Step 2, by the EPON manager, create thread and adopt the mode of poll to check the data link output queue that will monitor, if formation is sky to be represented countlessly according to output, expression is without flow, otherwise flow is arranged.
If step 3 is within the time of setting, up direction being detected flow, to opposite end, initiates linking request, network connection state is set for connecting; If within the time of setting, up direction being detected does not have flow, hangs up the link of up direction, network state is set for hanging up.
Here the network connection state variable is a temporary variable, exists in internal memory, and after outage, it can be cleared, and after powering on and restarting, system can be opened up again an internal memory for it and be stored it.
Concrete steps are: if within the time of setting, up direction being detected flow, and ONU sends a pppoe linking request message,, if ONU receives the response message of server, network connection state is set for connecting; If within the time of setting, up direction being detected does not have flow, hangs up the link of up direction, network state is set for hanging up;
Step 4, continuation are monitored the flow of the up direction of Optical Network Terminal by the EPON manager;
If step 5 is within the time of setting, up direction being detected flow, if network connection state is for connecting at this moment, turn to step 4,, if network connection state is for hanging up at this moment, to opposite end, initiate linking request, and network connection state is set for connecting, turn to step 4;
If within the time of setting, up direction being detected does not have flow,, if network connection state, for connecting, is hung up the link of up direction at this moment, network state is set for hanging up, turn to step 4, if network connection state, for hanging up, turns to step 4 at this moment.
Here setting-up time supports and holds according to reality, and general half an hour is proper, in time that also can be shorter.
As shown in Figure 1, in the present embodiment, whether the up direction by the monitoring passive light network terminal has data flow to produce control signal, control EPON and set up and linking of WAN end or linking of release (hanging up) and WAN, whether the up direction of monitoring passive light network terminal has data flow mainly to comprise the content of two aspects.
After first initialization, by the EPON manager, the flow of the up direction of Optical Network Terminal is monitored;
At this moment, if within the time of setting, up direction being detected flow, to opposite end, initiates linking request, network connection state is set for connecting; If within the time of setting, up direction being detected does not have flow, hangs up the link of up direction, network state is set for hanging up.
In working kind, passive light network terminal also by the EPON manager, the flow of the up direction of Optical Network Terminal was monitored.
At this moment, following two kinds of situations are arranged:
If within the time of setting, up direction being detected flow, if network connection state is for connecting at this moment, continue monitoring,, if network connection state is for hanging up at this moment, to opposite end, initiate linking request, and network connection state is set for connecting, continue monitoring.
If within the time of setting, up direction being detected does not have flow,, if network connection state, for connecting, is hung up the link of up direction at this moment, network state is set for hanging up, continue monitoring,, if network connection state is for hanging up at this moment, continue to monitor.
The master and slave flow chart of the present embodiment while specifically implementing as shown in Figure 2,3
Based on EPON broad band intelligent method for releasing, said method is that passive light network terminal (ONU) Real Time Monitoring user data message has in the time of will sending by wide area network, can be automatically and the other side initiate linking request and set up communication port, idle link is implemented automatically to hang up processing, abandon WAN and connect the data message of input direction.Detailed process is as follows.
Host process handling process: as Fig. 2
Step1:, by the EPON manager, start the broad band intelligent hypervisor in single user optical network unit MCU, initialization loads relevant configured parameter, such as idle timeout, flow control etc. are set;
Step2: circulation receives the message that monitoring WAN connection traffic process is sent;
Step3: if receive the disconnect message that monitoring WAN connection traffic process is sent, host process is hung up the link connection that this WAN connects, and abandons this WAN and connects the data message of input direction;
Setp4: if receive the connect message that monitoring WAN connection traffic process is sent, host process is initiated to set up communication port with opposite end communication linkage request.
Monitoring WAN connection traffic process handling process: as Fig. 3
Step1: scan round monitoring WAN connects the flow of outbound course, starts simultaneously hardware timer, if replacement hardware timer when WAN connection outbound course has data flow within the time of setting;
Step2:, in the situation that the connection status that in the time of setting, WAN connects is the connect state,, if WAN connects outbound course without flow, send a disconnect message to host process;
Setp3: sometime, if the user data message detected, will connect while sending by this WAN after disconnecting WAN and connecting, send a connect message to host process, the hardware timer of resetting simultaneously.
According to above-mentioned method for designing, when understanding the link of automatic hanging connection breaking free time and have the user data message to send by wide area network, passive light network terminal (ONU) sets up communication port, effectively utilized the network broadband resource.
Claims (4)
1. in an EPON, intelligence discharges the method for bandwidth, by the EPON manager, makes Optical Network Terminal hang up voluntarily idle link; It is characterized in that, comprise the following steps:
Step 1, by the EPON manager, Optical Network Terminal is carried out initialization;
Step 2, by the EPON manager, the flow of the up direction of Optical Network Terminal is monitored;
If step 3 is within the time of setting, up direction being detected flow, to opposite end, initiates linking request, network connection state is set for connecting; If within the time of setting, up direction being detected does not have flow, hangs up the link of up direction, network state is set for hanging up;
Step 4, continuation are monitored the flow of the up direction of Optical Network Terminal by the EPON manager;
If step 5 is within the time of setting, up direction being detected flow, if network connection state is for connecting at this moment, turn to step 4,, if network connection state is for hanging up at this moment, to opposite end, initiate linking request, and network connection state is set for connecting, turn to step 4;
If within the time of setting, up direction being detected does not have flow,, if network connection state, for connecting, is hung up the link of up direction at this moment, network state is set for hanging up, turn to step 4, if network connection state, for hanging up, turns to step 4 at this moment.
2. in EPON according to claim 1, intelligence discharges the method for bandwidth, it is characterized in that: in described step 2, by by the EPON manager, the flow of the up direction of Optical Network Terminal being monitored, comprise: create a thread and adopt the mode of poll to check the data link output queue that will monitor, if formation is sky represent countless according to output, expression is without flow, otherwise flow is arranged.
3. in EPON according to claim 1, intelligence discharges the method for bandwidth, it is characterized in that: in described step 3, the network connection state variable is a temporary variable, exist in internal memory, after outage, it can be cleared, and after powering on and restarting, system can be opened up again an internal memory for it and be stored it.
4. in EPON according to claim 1, intelligence discharges the method for bandwidth, and it is characterized in that: in described step 3: " initiating linking request to opposite end " is exactly to send a pppoe request message by terminal; " hang up the link of up direction " the monitor data Link State being set is disconnect, removes IP, dns address that this chain route server distributes to it.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112910788A (en) * | 2019-11-19 | 2021-06-04 | 西安诺瓦星云科技股份有限公司 | Communication link management method and device |
| CN114979841A (en) * | 2022-05-12 | 2022-08-30 | 苏州大学 | Method, device and system for improving uplink bandwidth utilization rate in passive optical network |
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| CN1518817A (en) * | 2001-01-12 | 2004-08-04 | Method and system for dynamic bandwidth allocation in optical access network | |
| CN1859438A (en) * | 2005-09-23 | 2006-11-08 | 华为技术有限公司 | Operation method for passive optic network user terminal |
| CN101510851A (en) * | 2009-04-03 | 2009-08-19 | 杭州华三通信技术有限公司 | Method and apparatus for releasing network bandwidth |
| JP2013012899A (en) * | 2011-06-29 | 2013-01-17 | Fujitsu Telecom Networks Ltd | Network system, transmission device and communication management method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1518817A (en) * | 2001-01-12 | 2004-08-04 | Method and system for dynamic bandwidth allocation in optical access network | |
| CN1859438A (en) * | 2005-09-23 | 2006-11-08 | 华为技术有限公司 | Operation method for passive optic network user terminal |
| CN101510851A (en) * | 2009-04-03 | 2009-08-19 | 杭州华三通信技术有限公司 | Method and apparatus for releasing network bandwidth |
| JP2013012899A (en) * | 2011-06-29 | 2013-01-17 | Fujitsu Telecom Networks Ltd | Network system, transmission device and communication management method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112910788A (en) * | 2019-11-19 | 2021-06-04 | 西安诺瓦星云科技股份有限公司 | Communication link management method and device |
| CN114979841A (en) * | 2022-05-12 | 2022-08-30 | 苏州大学 | Method, device and system for improving uplink bandwidth utilization rate in passive optical network |
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