CN104518958A - A transmission processing method for associated fibre channel signals and an optical transport network device - Google Patents
A transmission processing method for associated fibre channel signals and an optical transport network device Download PDFInfo
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- CN104518958A CN104518958A CN201310447321.1A CN201310447321A CN104518958A CN 104518958 A CN104518958 A CN 104518958A CN 201310447321 A CN201310447321 A CN 201310447321A CN 104518958 A CN104518958 A CN 104518958A
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Abstract
Embodiments of the invention disclose a transmission processing method for associated fibre channel signals and an optical transport network device. The method comprises: receiving FC (Fibre Channel) signals through FC interface units corresponding to different FC ports; identifying whether the different FC ports comprise associated FC ports according to preset associated FC port information; in the case that the different FC ports comprise associated FC ports, controlling an OTN (Optical Transport Network) packaging and scheduling unit to package and schedule associated FC signals in the same packaging modes and scheduling paths, and monitoring whether a time delay difference between the associated FC signals is less than a preset time delay difference, wherein, FC signals received by the associated FC ports are associated FC signals; and in response to the case that the time delay difference between the associated FC signals is not less than the preset time delay difference, executing time delay adjustment on the associated FC signals received by the associated FC ports, so that the time delay difference between the associated signals is less than the preset time delay difference. According to the embodiments of the transmission processing method for associated fibre channel signals and the optical transport network device, the transmission time delay difference between associated FC ports can be controlled by the OTN device, to meet end-to-end time delay difference requirement for the associated FC signals.
Description
Technical field
The present invention relates to the communication technology, especially a kind of method for transmission processing and optical transfer network (Optical Transport Network, OTN) equipment associating Fibre Channel signals.
Background technology
Fiber channel (Fibre Channel, FC) technology, as a kind of high-speed network technology, is widely used in storage area network.In recent years, FC technology is also progressively standby for data strange land calamity.OTN technology, as main flow transmission technology, can meet multi-service, bulky grain, Large Copacity, highly reliable transmission, scheduling, management and protection demand, is widely used in carrying big customer private line service in metropolitan area network.
At present, occurred using OTN to carry the demand of FC business in metropolitan area network, a FC link may be carried jointly by multiple FC port, and these FC ports are called association FC port, can be called association FC signal by the FC signal of each association FC port transmission.
Realizing in process of the present invention, inventor finds:
FC link requires higher to the delay inequality between association FC port, long apart from transmitting the delay inequality requirement being difficult to meet 100ns level between different association FC port.Such as, the FC chain route 4 road FC port of 1Gbps carries jointly, has the requirement of data syn-chronization between each FC port, if delay inequality is too large between FC port, can cause Data reception errors.But substantially do not have the requirement of delay inequality because other signals transmit, prior art for the Regulation mechanism of signal transfer delay, cannot not adjust for the transmission time delay difference between FC port, thus cause Data reception errors that FC link transmits.
Summary of the invention
An embodiment of the present invention technical problem to be solved is: to encapsulate FC signal for prior art association FC signal access OTN equipment, OTN equipment and transmission time delay difference that the link such as dispatch deal and the circuit transmission after scheduling causes, a kind of method for transmission processing and the OTN apparatus that associate Fibre Channel signals are provided, OTN equipment is controlled the transmission time delay difference between association FC port, with the delay inequality requirement end to end of satisfied association FC signal.
A kind of method for transmission processing associating Fibre Channel signals that the embodiment of the present invention provides, comprising:
The FC interface unit corresponding by different fiber channel FC port receives FC signal;
According to the association FC port information pre-set, identify in described different FC port and whether comprise association FC port;
If different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, the OTN encapsulation of control optical transfer network and scheduling unit adopt same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, and whether the delay inequality between monitoring association FC signal is less than default delay inequality;
Be not less than default delay inequality in response to the delay inequality between association FC signal, to association FC port accepts to association FC signal carry out time delay adjustment, make the delay inequality between association FC signal be less than default delay inequality.
In a specific embodiment of said method, described association FC port information comprises association FC port-mark ID or associates FC interface unit ID corresponding to FC port.
In a specific embodiment of said method, described association FC port comprises: multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
In a specific embodiment of said method, to association FC port accepts to association FC signal carry out time delay adjustment and comprise:
By the buffer that each association FC port is corresponding, the storage of control association FC signal and the time difference of reading, adjust the propagation delay time of association FC signal, thus the delay inequality between control association FC signal.
In a specific embodiment of said method, also comprise:
When knowing that the wherein road FC signal demand associated FC signal is switched to protection FC link transmission from network management system, trigger network management system and will associate FC signal switching to identical protection FC link transmission.
A kind of OTN apparatus that the embodiment of the present invention provides, comprising:
Multiple FC interface unit, respectively corresponding different FC port, for receiving FC signal;
Port binding unit, for according to the association FC port information pre-set, identifies in described different FC port and whether comprises association FC port; If different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, and whether the delay inequality between monitoring association FC signal is less than default delay inequality; Be not less than default delay inequality in response to the delay inequality between association FC signal, to association FC port accepts to association FC signal carry out time delay adjustment, make the delay inequality between association FC signal be less than default delay inequality;
OTN encapsulation and scheduling unit, for being entered in OTN frame format by FC signal assemble, and dispatch encapsulating the OTN frame obtained.
In a specific embodiment of the said equipment, described association FC port information comprises association FC port id or associates FC interface unit ID corresponding to FC port.
In a specific embodiment of the said equipment, described association FC port comprises: multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
In a specific embodiment of the said equipment, also comprise:
Multiple buffer, respectively corresponding association FC port, for controlling the storage of FC signal that receives and the time difference of reading;
Described port binding unit to association FC port accepts to association FC signal carry out time delay adjustment time, especially by the buffer that each association FC port is corresponding, the storage of control association FC signal and the time difference of reading, adjust the propagation delay time of association FC signal, thus the delay inequality between control association FC signal.
In a specific embodiment of the said equipment; described port binding unit; time also for knowing that from network management system the wherein road FC signal demand associated in FC signal is switched to protection FC link transmission, triggering network management system and will associate FC signal switching to identical protection FC link transmission.
The method for transmission processing of the association Fibre Channel signals provided based on the above embodiment of the present invention and OTN apparatus, after receiving FC signal by FC interface unit, can according to the association FC port information pre-set, identify in different FC port and whether comprise association FC port, if different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, the end-to-end time delay reduced between association FC signal is poor, and whether the delay inequality between monitoring association FC signal is less than default delay inequality, when delay inequality between association FC signal is not less than default delay inequality, to association FC port accepts to association FC signal carry out time delay adjustment, the delay inequality between association FC signal is made to be less than default delay inequality, achieve the control of OTN equipment to the transmission time delay difference between association FC port, to meet user to the delay inequality requirement end to end of association FC signal.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Accompanying drawing explanation
What form a part for specification drawings describes embodiments of the invention, and is used from explanation principle of the present invention together with description one.
With reference to accompanying drawing, according to detailed description below, clearly the present invention can be understood, wherein:
Fig. 1 is the flow chart that the present invention associates a method for transmission processing embodiment of FC signal.
Fig. 2 is the flow chart that the present invention associates another embodiment of method for transmission processing of FC signal.
Fig. 3 is the structural representation of an OTN equipment of the present invention embodiment.
Embodiment
Various exemplary embodiment of the present invention is described in detail now with reference to accompanying drawing.It should be noted that: unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part for specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 1 is the flow chart that the present invention associates a method for transmission processing embodiment of FC signal.As shown in Figure 1, the method for transmission processing of this embodiment association FC signal comprises:
110, the FC interface unit corresponding by different FC port receives FC signal.
120, according to the association FC port information pre-set, identify in above-mentioned different FC port and whether comprise association FC port.
If above-mentioned different FC port comprises association FC port, for association FC port, perform the operation of 130.If do not comprise association FC port in above-mentioned different FC port, do not perform the follow-up flow process of the present embodiment, independent OTN encapsulation mode and scheduling path can be adopted to encapsulate FC signal and dispatch.
Exemplarily, association FC port information can be specifically association FC port-mark ID, or also can be the FC interface unit ID that association FC port is corresponding.
In the embodiment of the present invention, association FC port can be specifically multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
130, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, to guarantee the control to end-to-end time delay difference between association FC signal, and whether the delay inequality between monitoring association FC signal is less than default delay inequality.
Be not less than default delay inequality in response to the delay inequality between association FC signal, perform the operation of 140.Otherwise, be less than default delay inequality in response to the delay inequality between association FC signal, do not perform the follow-up flow process of the present embodiment.
Default delay inequality wherein can be that correctly can to carry out the maximum delay of correct data reception to association FC signal poor.
140, to association FC port accepts to association FC signal carry out time delay adjustment, make the delay inequality between association FC signal be less than default delay inequality.
In the method for transmission processing of the association Fibre Channel signals that the above embodiment of the present invention provides, after receiving FC signal by FC interface unit, can according to the association FC port information pre-set, identify in different FC port and whether comprise association FC port, if different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, the end-to-end time delay reduced between association FC signal is poor, and whether the delay inequality between monitoring association FC signal is less than default delay inequality, when delay inequality between association FC signal is not less than default delay inequality, to association FC port accepts to association FC signal carry out time delay adjustment, the delay inequality between association FC signal is made to be less than default delay inequality, achieve the control of OTN equipment to the transmission time delay difference between association FC port, to meet user to the delay inequality requirement end to end of association FC signal.
Fig. 2 is the flow chart that the present invention associates another embodiment of method for transmission processing of FC signal.As shown in Figure 2, the method for transmission processing of this embodiment association FC signal comprises:
210, the FC interface unit corresponding by different FC port receives FC signal.
220, according to the association FC port information pre-set, identify in above-mentioned different FC port and whether comprise association FC port.
If above-mentioned different FC port comprises association FC port, for association FC port, perform the operation of 230.If do not comprise association FC port in above-mentioned different FC port, perform the operation of 260.
Exemplarily, association FC port information can be specifically association FC port-mark ID, or also can be the FC interface unit ID that association FC port is corresponding.
In the embodiment of the present invention, association FC port can be specifically multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
230, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, to guarantee the control to end-to-end time delay difference between association FC signal, and whether the delay inequality between monitoring association FC signal is less than default delay inequality.
Be not less than default delay inequality in response to the delay inequality between association FC signal, perform the operation of 240.Otherwise, be less than default delay inequality in response to the delay inequality between association FC signal, do not perform the follow-up flow process of the present embodiment.
240, by the buffer that each association FC port is corresponding, the storage of controller buffer to association FC signal and the time difference of reading, adjust the propagation delay time of association FC signal, thus the delay inequality between control association FC signal is less than default delay inequality.
250, when knowing that the wherein road FC signal demand associated FC signal is switched to protection FC link transmission from network management system, trigger network management system and will associate FC signal switching to identical protection FC link transmission.
Wherein, operation 250 is switched to the triggering of this trigger condition of protection FC link transmission based on the wherein road FC signal demand in transmission association FC signal and performs; and on the time of implementation, there is not order between operation 230 ~ 240 limit, can perform early than operation 230 ~ 240 or perform with operation 230 ~ 240 simultaneously.
Afterwards, the follow-up flow process of the present embodiment is not performed.
260, OTN encapsulation and scheduling unit adopt independent OTN encapsulation mode and scheduling path to encapsulate FC signal and dispatch.Now, can be 0 to realize by the time difference of buffer to the storage of FC signal and reading, that is: buffer carry out buffer memory to FC signal.
By operating after 230 and 260 pairs of FC signals encapsulate and dispatch, follow-up can according to the OTN equipment form known from network management system, comprise terminal multiplex equipment and electric intersection equipment, OTN exchange is carried out to the OTN frame that FC signal assemble and scheduling obtain, such as, by electricity intersection equipment, cross scheduling process is carried out to OTN frame, or, the direct process of OTN frame enters line side, from line side sends after directly OTN frame being carried out adaptation by terminal multiplex equipment.
Fig. 3 is the structural representation of an OTN equipment of the present invention embodiment.The OTN equipment of this embodiment can be used in the present invention the method for transmission processing embodiment of above-mentioned each association FC signal.As shown in Figure 3, it comprises multiple FC interface unit, port binding unit and OTN and encapsulates and scheduling unit.Wherein:
Multiple FC interface unit, corresponding different FC port respectively, for receiving FC signal, the adaptation processing such as opto-electronic conversion, coded modulation, rate modulation are carried out to these physical properties of the photoelectric parameter such as speed, luminous power, Optical Signal To Noise Ratio of FC signal, can transmit preferably on the line to make FC signal.
Port binding unit, for according to the association FC port information pre-set, identifies to receive in the different FC ports of FC signal whether comprise association FC port; If different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, and whether the delay inequality between monitoring association FC signal is less than default delay inequality; Be not less than default delay inequality in response to the delay inequality between association FC signal, to association FC port accepts to association FC signal carry out time delay adjustment, make the delay inequality between association FC signal be less than default delay inequality.
Exemplarily, association FC port information can be specifically association FC port-mark ID, or also can be the FC interface unit ID that association FC port is corresponding.In the embodiment of the present invention, association FC port can be specifically multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
OTN encapsulation and scheduling unit, for being entered in OTN frame format by FC signal assemble, and dispatch encapsulating the OTN frame obtained.
The OTN equipment that the above embodiment of the present invention provides, after receiving FC signal by FC interface unit, can according to the association FC port information pre-set, identify in different FC port and whether comprise association FC port, if different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, the end-to-end time delay reduced between association FC signal is poor, and whether the delay inequality between monitoring association FC signal is less than default delay inequality, when delay inequality between association FC signal is not less than default delay inequality, to association FC port accepts to association FC signal carry out time delay adjustment, the delay inequality between association FC signal is made to be less than default delay inequality, achieve the control of OTN equipment to the transmission time delay difference between association FC port, to meet user to the delay inequality requirement end to end of association FC signal.
Further, then see Fig. 3, in another embodiment of OTN equipment of the present invention, multiple buffer can also be comprised, respectively corresponding association FC port, for controlling the storage of FC signal that receives and the time difference of reading.Correspondingly, port binding unit to association FC port accepts to association FC signal carry out time delay adjustment time, especially by the buffer that each association FC port is corresponding, the storage of control association FC signal and the time difference of reading, adjust the propagation delay time of association FC signal, thus the delay inequality between control association FC signal.
In another embodiment of OTN equipment of the present invention; when the wherein road FC signal demand that port binding unit can also be used for knowing association FC signal from network management system is switched to protection FC link transmission, trigger network management system by association FC signal switching to identical protection FC link transmission.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, same or analogous part cross-reference between each embodiment.For system embodiment, because itself and embodiment of the method are substantially corresponding, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Method of the present invention, system may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present invention.Said sequence for the step of described method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Claims (10)
1. associate a method for transmission processing for Fibre Channel signals, it is characterized in that, comprising:
The FC interface unit corresponding by different fiber channel FC port receives FC signal;
According to the association FC port information pre-set, identify in described different FC port and whether comprise association FC port;
If different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, the OTN encapsulation of control optical transfer network and scheduling unit adopt same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, and whether the delay inequality between monitoring association FC signal is less than default delay inequality;
Be not less than default delay inequality in response to the delay inequality between association FC signal, to association FC port accepts to association FC signal carry out time delay adjustment, make the delay inequality between association FC signal be less than default delay inequality.
2. method according to claim 1, is characterized in that, described association FC port information comprises association FC port-mark ID or associates FC interface unit ID corresponding to FC port.
3. method according to claim 1, is characterized in that, described association FC port comprises: multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
4. method according to claim 1, is characterized in that, to association FC port accepts to association FC signal carry out time delay adjustment and comprise:
By the buffer that each association FC port is corresponding, the storage of control association FC signal and the time difference of reading, adjust the propagation delay time of association FC signal, thus the delay inequality between control association FC signal.
5. the method according to Claims 1-4 any one, is characterized in that, also comprises:
When knowing that the wherein road FC signal demand associated FC signal is switched to protection FC link transmission from network management system, trigger network management system and will associate FC signal switching to identical protection FC link transmission.
6. an OTN apparatus, is characterized in that, comprising:
Multiple FC interface unit, respectively corresponding different FC port, for receiving FC signal;
Port binding unit, for according to the association FC port information pre-set, identifies in described different FC port and whether comprises association FC port; If different FC port comprises association FC port, the FC signal arrived by association FC port accepts is association FC signal, control OTN encapsulates and scheduling unit adopts same encapsulation mode to encapsulate with scheduling path associating FC signal and dispatch, and whether the delay inequality between monitoring association FC signal is less than default delay inequality; Be not less than default delay inequality in response to the delay inequality between association FC signal, to association FC port accepts to association FC signal carry out time delay adjustment, make the delay inequality between association FC signal be less than default delay inequality;
OTN encapsulation and scheduling unit, for being entered in OTN frame format by FC signal assemble, and dispatch encapsulating the OTN frame obtained.
7. equipment according to claim 6, is characterized in that, described association FC port information comprises association FC port id or associates FC interface unit ID corresponding to FC port.
8. equipment according to claim 6, is characterized in that, described association FC port comprises: multiple FC ports of carrying same FC link, or carries multiple FC ports of many FC links that default delay inequality requires.
9. equipment according to claim 6, is characterized in that, also comprises:
Multiple buffer, respectively corresponding association FC port, for controlling the storage of FC signal that receives and the time difference of reading;
Described port binding unit to association FC port accepts to association FC signal carry out time delay adjustment time, especially by the buffer that each association FC port is corresponding, the storage of control association FC signal and the time difference of reading, adjust the propagation delay time of association FC signal, thus the delay inequality between control association FC signal.
10. the equipment according to claim 6 to 9 any one; it is characterized in that; described port binding unit; time also for knowing that from network management system the wherein road FC signal demand associated in FC signal is switched to protection FC link transmission, triggering network management system and will associate FC signal switching to identical protection FC link transmission.
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| CN104518958B (en) | 2018-01-12 |
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