CN101304282B - Method and apparatus for protecting framing chip - Google Patents
Method and apparatus for protecting framing chip Download PDFInfo
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- CN101304282B CN101304282B CN2008101110658A CN200810111065A CN101304282B CN 101304282 B CN101304282 B CN 101304282B CN 2008101110658 A CN2008101110658 A CN 2008101110658A CN 200810111065 A CN200810111065 A CN 200810111065A CN 101304282 B CN101304282 B CN 101304282B
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Abstract
The invention discloses a framing chip protection method and a device thereof, wherein, the method comprises: a type of service signals to be transmitted is determined, wherein, the type of the service signals to be transmitted comprises optical transmission network service signals or non-optical transmission network service signals; the detection operation and/or shielding detection operation of the framing chip can be configured according to the type of the service signals to be transmitted. The stability and anti-interference ability of the optical communication devices can be increased through the method and the device of the invention.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of framing chip guard method and device.
Background technology
Framing chip (Framer) is to handle input and the professional important chip of regeneration after the opto-electronic conversion in the optical transmission system, and whether the direct decision systems communication of its running status is unimpeded.Multiple business detection and treatment facility on the optical transmission line all are provided with professional framing chip.
When the framing chip of optical transmission or forwarding unit was worked, extraneous signal changed more complicated.If framing chip itself does not provide perfect safeguard measure, may occur being influenced by outer signals, cause being absorbed in the endless loop of state machine transcription error, service signal can't be recovered, bring to transmission to have a strong impact on.
With 2.5G framing chip VSC9271 is that example is described wrong production process.The equipment that has the 2.5G framing chip is connected in the optical communication system, for its operation principle of local terminal equipment be: optical transceiver receives professional light signal, opto-electronic conversion is the professional signal of telecommunication, through serial/separate serial (MAX/DEMAX) chip (as VSC8145) serial signal being converted to parallel signal again is input among the framing chip VSC9271, chip is through disposing the former service signal of can regenerating, perhaps produce band FEC (Forward Error Correction, forward error correction) OTN (Optical Transport Network, Optical Transmission Network OTN) signal; The concurrent service signal is converted to serial signal through the MAX/DEMAX chip again and enters optical transceiver, and electric light conversion back service signal transmits downstream.Wherein, the configuration of equipment transport service type is identical with the configuration of framing chip.
In the practical application of chip, find that two kinds of situations may cause equipment to enter error condition, can't operate as normal:
1. the local terminal equipment disposition transmits non-OTN signal, it is normal that system business reaches, opposite equip. transmits signal type and switches to the OTN signal from non-OTN signal, switch back non-OTN signal again, system business can not recover, the operation opposite equip. is invalid, and the framing chip that only reinitializes local terminal equipment could recover professional, and this is the situation that local terminal equipment is subjected to extraneous service signal variable effect to cause business to recover;
2. the local terminal equipment disposition transmits the OTN signal, it is normal that system business reaches, configuration local terminal equipment transport service type switches to non-OTN signal from the OTN signal, change then that opposite equip. transmits non-OTN signal and configuration-system is non-OTN signal, system business can't be normal, local terminal equipment enters error condition, and the framing chip that only reinitializes local terminal equipment could recover professional.This to be local terminal equipment be subjected in self framing chip layoutprocedure extraneous service signal influence causes system can't operate as normal situation.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art: the traffic-carrying device on the communication line is subjected to transmitting the influence of signal and enter can't self-healing error condition, causes the professional misfeed of whole system.
Summary of the invention
The present invention aims to provide a kind of framing chip guard method and device, changed by extraneous service signal and the problem of makeing mistakes and causing system business to recover to solve framing chip.
According to an aspect of the present invention, provide a kind of framing chip guard method.
Framing chip guard method according to the embodiment of the invention comprises: determine to wait to transmit the type of service signal, wherein, wait that the type that transmits service signal comprises Optical Transmission Network OTN service signal or non-Optical Transmission Network OTN service signal; According to the type of waiting to transmit service signal, the detecting operation of configuration framing chip and/or shield detection operation.
Preferably, according to the type of waiting to transmit service signal, configuration detecting operation of framing chip and/or shield detection operation specifically comprise: in the type of waiting to transmit service signal is under the situation of non-Optical Transmission Network OTN service signal, the frame structure sign of the non-Optical Transmission Network OTN service signal of configuration framing chip detection, and the frame structure sign of configuration framing chip shield detection Optical Transmission Network OTN service signal; In the type of waiting to transmit service signal is under the situation of Optical Transmission Network OTN service signal, the frame structure sign of configuration framing chip detection Optical Transmission Network OTN service signal.
Preferably, after determining to wait to transmit the type of service signal, and wait to transmit the type of service signal in basis, before the detecting operation of configuration framing chip and/or the shield detection operation, said method also comprises: with serial/separate serial chip initiation, and serial/separate serial chip is arranged so that the service signal that enters serial/separate serial chip does not enter framing chip; With the framing chip initialization.
Preferably, wait to transmit the type of service signal in basis, after configuration detecting operation of framing chip and/or the shield detection operation, said method also comprises: according to the related register of the type configuration framing chip of waiting to transmit service signal, to finish the processing and the regeneration of waiting to transmit service signal; Serial/separate serial chip is arranged so that the service signal that enters serial/separate serial chip enters framing chip.
Preferably, before determining to wait to transmit the type of service signal, said method also comprises: the device start at framing chip place, and perhaps wait to transmit service signal and between Optical Transmission Network OTN service signal and non-Optical Transmission Network OTN service signal, switch.
According to a further aspect in the invention, also provide a kind of framing chip protective device.
Framing chip protective device according to the embodiment of the invention comprises: determination module, be used to determine to wait to transmit the type of service signal, and wherein, wait that the type that transmits service signal comprises Optical Transmission Network OTN service signal or non-Optical Transmission Network OTN service signal; Module is set, is used for, the detecting operation of configuration framing chip and/or shield detection operation according to the type of waiting to transmit service signal.
Preferably, module is set further to be comprised: first is provided with module, being used in the type of waiting to transmit service signal is under the situation of non-Optical Transmission Network OTN service signal, the frame structure sign of the non-Optical Transmission Network OTN service signal of configuration framing chip detection, and the frame structure sign of configuration framing chip shield detection Optical Transmission Network OTN service signal; Second is provided with module, and being used in the type of waiting to transmit service signal is under the situation of Optical Transmission Network OTN service signal, the frame structure sign of configuration framing chip detection Optical Transmission Network OTN service signal.
Preferably, above-mentioned protective device also comprises: initialization module is used for serial/separate serial chip and framing chip initialization; Protect/separate protection module, be used to make the service signal that enters serial/separate serial chip not enter/enter framing chip; Configuration module is used for the related register according to the type configuration framing chip of service signal, with processing and the regeneration of finishing service signal.
By technique scheme of the present invention, the interference of extraneous service signal is isolated in outside the equipment with framing chip, make the normal operation and the switching of optical communication line business have, can effectively improve the stability and the antijamming capability of optical communication equipment from recovering guarantee.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of framing chip guard method according to an embodiment of the invention;
Fig. 2 is the flow chart of framing chip guard method according to another embodiment of the present invention;
Fig. 3 is the flow chart of framing chip guard method according to another embodiment of the present invention;
Fig. 4 is the schematic diagram according to the traffic-carrying device transmitting business signal of the embodiment of the invention;
Fig. 5 is the schematic diagram according to the framing chip protective device application scenarios of the embodiment of the invention;
Fig. 6 is the block diagram according to the framing chip protective device of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
According to the embodiment of the invention; a kind of framing chip guard method at first is provided; embodiment of the invention applied scene includes but not limited to: the device start when framing chip place, and perhaps wait to transmit service signal and between Optical Transmission Network OTN service signal and non-Optical Transmission Network OTN service signal, switch.Fig. 1 is the flow chart according to the framing chip guard method of the embodiment of the invention.As shown in Figure 1, the framing chip guard method according to the embodiment of the invention may further comprise the steps:
Step S102 determines to wait to transmit the type of service signal, wherein, waits that the type that transmits service signal comprises OTN service signal or non-OTN service signal;
Step S104, according to the type of waiting to transmit service signal, the detecting operation of configuration framing chip and/or shield detection operation.
Wherein, the processing of step S104 specifically comprises: in the type of waiting to transmit service signal is under the situation of non-OTN service signal, the frame structure sign of the non-OTN service signal of configuration framing chip detection, and the frame structure sign of configuration framing chip shield detection OTN service signal; In the type of waiting to transmit service signal is under the situation of OTN service signal, the frame structure sign of configuration framing chip detection OTN service signal.
By the foregoing description, can ensure that system was not influenced by it can and enter error condition when non-configuration service signal changed.
Fig. 2 is the flow chart of framing chip guard method according to another embodiment of the present invention.Framing chip guard method as shown in Figure 2 may further comprise the steps:
Step S202 determines to wait to transmit the type of service signal, wherein, waits that the type that transmits service signal comprises OTN service signal or non-OTN service signal;
Step S204 with serial/separate serial chip initiation, and is arranged so that with serial/separate serial chip the service signal that enters serial/separate serial chip does not enter framing chip;
Step S206 is with the framing chip initialization;
Step S208, according to the type of waiting to transmit service signal, the detecting operation of configuration framing chip and/or shield detection operation;
Step S210 is according to the related register of the type configuration framing chip of waiting to transmit service signal, to finish the processing and the regeneration of waiting to transmit service signal;
Step S212 is arranged so that with serial/separate serial chip the service signal that enters serial/separate serial chip enters framing chip.
Wherein, the processing of step S208 specifically comprises: in the type of waiting to transmit service signal is under the situation of non-OTN service signal, the frame structure sign of the non-OTN service signal of configuration framing chip detection, and the frame structure sign of configuration framing chip shield detection OTN service signal; In the type of waiting to transmit service signal is under the situation of OTN service signal, the frame structure sign of configuration framing chip detection OTN service signal.
By the foregoing description, framing chip that can support equipment is not influenced by extraneous service signal when switching the service signal of self supporting and enters error condition.
Fig. 3 is the flow chart of the framing chip guard method of the example according to the present invention.Fig. 4 is a schematic diagram of using the traffic-carrying device transmitting business signal of this method.Traffic-carrying device comprises two-way framing chip protective device; every side is made up of optical transceiver, MAX/DEMAX chip, framing chip and other connecting circuits; service signal entered the MAX/DEMAX chip after optical transceiver was finished opto-electronic conversion, entered framing chip through string and conversion back service signal and regenerated or produce new signal.Adopt the OTN business to describe as non-configuration service type, method as shown in Figure 3 may further comprise the steps:
Step S302 obtains the target service data that need dispose;
Step S304, initialization MAX/DEMAX chip;
Step S306 is provided with the MAX/DEMAX chip and makes the service signal that enters the MAX/DEMAX chip wouldn't enter framing chip; Can make service signal not enter framing chip (as shown in Figure 4) by MAX/DEMAX chip loopback/blocking-up/isolation is set; This moment, business datum was isolated the influence of framing chip;
Step S308, initialization framing chip, this step can not influence the configuration of MAX/DEMAX chip;
Step S310, the configuration framing chip forbids checking OTN standard frame head, perhaps fixedly installs to detect invalid frame head with the OTN relevant portion and make when the OTN signal import because match and do not lose efficacy, maintenance chip original state is constant; Prevent that chip is instantaneous because the state switching enters error condition and can't recover, for the target configuration type of service, the frame head that set up standard identification is checked;
Step S312 according to target service type configuration framing chip related register, makes framing chip can finish the processing and the regeneration of target service type as configuration FEC kind, configurable clock generator selection related register etc.;
Step S314, the loopback/blocking-up/isolation of cancellation MAX/DEMAX chip is provided with, and recovers professional path through framing chip.At this moment finished chip reset framing chip protection in the target service layoutprocedure, follow-up also the needs recovered original function configuration before type of service changes according to original recording parameters, as the chip loopback etc.
When system's adjustment transport service type is consistent with the device processes type of service, recover professional normal transmission.No matter be that system business changes or the supporting business type switching of equipment self institute can avoid framing chip to make a mistake.
Device embodiment
Fig. 5 is the schematic diagram according to the framing chip protective device application scenarios of the embodiment of the invention.As shown in Figure 5, enter the MAX/DEMAX chip after the service signal process optical receiving device opto-electronic conversion; The MAX/DEMAX chip carries out being input in the framing chip behind the signal transformation from serial to parallel, if relate to two-way services transmission or multichannel, and the reverse or multichannel expansion of installing above exactly.
Fig. 6 shows the framing chip protective device according to the embodiment of the invention, and this device comprises: determination module 10, be used to determine to wait to transmit the type of service signal, and wherein, wait that the type that transmits service signal comprises OTN service signal or non-OTN service signal; Module 20 is set, is used for, the detecting operation of configuration framing chip and/or shield detection operation according to the type of waiting to transmit service signal.
Wherein, module 20 is set further to be comprised: first is provided with module, being used at service signal to be transmitted is under the situation of non-OTN service signal, the frame structure sign of the non-OTN service signal of configuration framing chip detection, and the frame structure sign of configuration framing chip shield detection OTN service signal; Second is provided with module, and being used at service signal to be transmitted is under the situation of OTN service signal, the frame structure sign of configuration framing chip detection OTN service signal.
And above-mentioned protective device also comprises: initialization module is used for serial/separate serial chip and framing chip initialization; Protect/separate protection module, be used to make the service signal that enters serial/separate serial chip not enter/enter framing chip; Configuration module is used for the related register according to the type configuration framing chip of service signal, with processing and the regeneration of finishing service signal.
By technique scheme of the present invention, the interference of extraneous service signal is isolated in outside the equipment with framing chip, make the normal operation and the switching of optical communication line business have, can effectively improve the stability and the antijamming capability of optical communication equipment from recovering guarantee.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a framing chip guard method is characterized in that, comprising:
Step 1 determines to wait to transmit the type of service signal, and wherein, the described type that transmits service signal of waiting comprises Optical Transmission Network OTN service signal or non-Optical Transmission Network OTN service signal;
Step 2, in the type of waiting to transmit service signal is under the situation of described non-Optical Transmission Network OTN service signal, dispose the frame structure sign that described framing chip detects described non-Optical Transmission Network OTN service signal, and dispose the frame structure sign of the described Optical Transmission Network OTN service signal of described framing chip shield detection; In the described type of waiting to transmit service signal is under the situation of described Optical Transmission Network OTN service signal, disposes the frame structure sign that described framing chip detects described Optical Transmission Network OTN service signal.
2. method according to claim 1 is characterized in that, after step 1, and before step 2, described method also comprises:
With serial/separate serial chip initiation, and described serial/separate serial chip is arranged so that the service signal that enters described serial/separate serial chip does not enter described framing chip;
With described framing chip initialization.
3. method according to claim 2 is characterized in that, after step 2, described method also comprises:
According to the described related register of waiting to transmit the described framing chip of type configuration of service signal, to finish described processing and regeneration of waiting to transmit service signal;
Described serial/separate serial chip is arranged so that the service signal that enters described serial/separate serial chip enters described framing chip.
4. method according to claim 1 is characterized in that, before step 1, described method also comprises:
The device start at described framing chip place is perhaps waited to transmit service signal and is switched between described Optical Transmission Network OTN service signal and described non-Optical Transmission Network OTN service signal.
5. a framing chip protective device is characterized in that, comprising:
Determination module is used to determine to wait to transmit the type of service signal, and wherein, the described type that transmits service signal of waiting comprises Optical Transmission Network OTN service signal or non-Optical Transmission Network OTN service signal;
Module is set, the described module that is provided with comprises: first is provided with module, being used in the type of waiting to transmit service signal is under the situation of described non-Optical Transmission Network OTN service signal, dispose the frame structure sign that described framing chip detects described non-Optical Transmission Network OTN service signal, and dispose the frame structure sign of the described Optical Transmission Network OTN service signal of described framing chip shield detection; Second is provided with module, and being used in the described type of waiting to transmit service signal is under the situation of described Optical Transmission Network OTN service signal, disposes the frame structure sign that described framing chip detects described Optical Transmission Network OTN service signal.
6. device according to claim 5 is characterized in that, also comprises:
Initialization module is used for serial/separate serial chip and described framing chip initialization;
Protect/separate protection module, be used to make the service signal that enters described serial/separate serial chip not enter/enter described framing chip;
Configuration module is used for the related register according to the described framing chip of type configuration of described service signal, with processing and the regeneration of finishing described service signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101110658A CN101304282B (en) | 2008-06-10 | 2008-06-10 | Method and apparatus for protecting framing chip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101110658A CN101304282B (en) | 2008-06-10 | 2008-06-10 | Method and apparatus for protecting framing chip |
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| CN101304282B true CN101304282B (en) | 2011-07-13 |
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| CN101841744A (en) * | 2009-03-17 | 2010-09-22 | 华为技术有限公司 | Transmitting method and device of hundred gigabit Ethernet in optical transmission network |
| CN112579356B (en) * | 2020-12-21 | 2022-09-16 | 上海金仕达软件科技有限公司 | Fault processing method and server |
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Granted publication date: 20110713 Termination date: 20190610 |