CN102413391B - Method and device for realizing grouping and joint self-routing of OTN (Optical Transport Network) signal - Google Patents
Method and device for realizing grouping and joint self-routing of OTN (Optical Transport Network) signal Download PDFInfo
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- CN102413391B CN102413391B CN201110445318.7A CN201110445318A CN102413391B CN 102413391 B CN102413391 B CN 102413391B CN 201110445318 A CN201110445318 A CN 201110445318A CN 102413391 B CN102413391 B CN 102413391B
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Abstract
The invention relates to a method and device for realizing grouping and joint self-routing of an OTN (Optical Transport Network) signal. The method provided by the invention comprises the following steps of: dividing an input service into a grouping service and an OTN service by a signal sending/receiving end; with regard to the OTN service, inputting service routing information into a TTI (Trial Trace Identifier) byte or other reserved bytes spent by an ODUk (Optical Channel Data Unit) in the OTN signal; in a routing selecting unit, judging the signal through a framing/packet module; selecting a method to carry out routing of the grouping service by a grouping signal according to the existing grouping service routing, so as to determine a transport path; obtaining the service routing information in the TTI byte or the other reserved bytes of the ODUk by the OTN signal and then selecting a routing address according to address information in the extracted service routing information and an address table in the routing selecting unit, so as to determine the transport path. With the adoption of the method and the device provided by the invention, the routing information of the grouping signal and the OTN signal can be adaptively identified, and the transport path can be intelligently selected at a transport node, so that the complexity of manual operation is reduced.
Description
Technical field
The present invention relates to technical field of optical network communication, is that a kind of grouping and OTN combined signal realized is from method and the device of route specifically.
Background technology
No matter be the long distance transmission from business, still the rapid growth angle of following IP class business is considered, adopts TDM (time division multiplexing) business+Packet Service network interworking pattern all to seem very necessary.Consider the many advantages of network interworking pattern, except do not have TDM business or in a short time TDM business cannot be covered to the area of key core point, all suggestion adopts the mode of network interworking to carry out the construction of metropolitan area local network.TDM business+Packet Service network interworking pattern relies on its powerful IP operation access, converges and flexible dispatching ability, promoting MAN transmission network towards flattening network evolution unification, that merge by being conducive to, is the optimal selection that transmission network of future generation is set up in each operator.
In prior art equipment, packet signal can be realized Route Selection comparatively easily, but to OTN (optical transfer network, Optical Transport Network) signal, needs artificial manual configuration route.In TDM business+Packet Service network interworking, can make equipment complicated like this, increase networking cost.
Summary of the invention
For the defect existing in prior art, the object of the present invention is to provide a kind of grouping and OTN combined signal realized from method and the device of route, can self adaptation the routing iinformation of identification packet signal and OTN signal, at transmission node place intelligent selection transmission path, reduce manually-operated complexity.
For reaching above object, the technical scheme that the present invention takes is:
Realize grouping and OTN combined signal from a method for route, it is characterized in that, comprise the following steps:
Step 101, at the signal sending/receiving end as transmission node, according to default or the automatic business configuration management information of identifying, classifies the business of input according to Packet Service and OTN business;
Step 102, when the business of input is Packet Service, when output is also Packet Service, carries out the route of Packet Service according to existing Packet Service route selection method;
Step 103, in the time that the business of input is OTN business, according to default business routing iinformation, is input to business routing iinformation in the TTI byte or other reserve bytes of ODUk expense in OTN signal;
Step 104, in the Route Selection unit of signal sending/receiving end, judges process step 102 or step 103 signal after treatment by framing/bag module;
Step 105, if result of determination is packet signal, carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path;
Step 106, if result of determination is OTN signal, first obtain the business routing iinformation in TTI byte or other reserve bytes of ODUk, select routing address according to the address information in the business routing iinformation extracting and the address table in Route Selection unit, determine transmission path.
On the basis of technique scheme, when the business of input is Packet Service, while being output as OTN business, input is packet signal, and this packet signal need to be sealed while being mapped to OTN signal, extract the route switching information of this packet signal, and will after this route switching information conversion, be input in the TTI byte or other reserve bytes of ODUk expense in OTN signal.
On the basis of technique scheme, the route switching information of described packet signal at least comprises: IP address, MAC Address, MPLS address and Vlan address.
On the basis of technique scheme, when having included business routing iinformation, this signal of transparent transmission in the TTI byte of ODUk expense in OTN signal or other reserve bytes.
Realize grouping and OTN combined signal from a device for route, it is characterized in that, this device is arranged between the customer side and line side on the veneer of line side, comprising:
Business configuration administration module 201, for basis, the default or automatic business configuration management information of identifying, classifies the business from customer side input according to Packet Service and OTN business;
Routing iinformation insert module 202, for extracting business routing iinformation be input in the TTI byte or other reserve bytes of OTN signal ODUk expense;
Framing/bag module 203, for judging the type of service signal;
Routing selecting module 204, carry out routing function for the Different Results of judging according to framing/bag module 203, if result of determination is packet signal, routing selecting module 204 carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path; If result of determination is OTN signal, first obtain the business routing iinformation in TTI byte or other reserve bytes of ODUk, select routing address according to the address information in the business routing iinformation extracting and the address table in Route Selection unit, determine transmission path;
On the basis of technique scheme, described master control selects module 205 to comprise: CPU and the FPGA being connected with CPU.
On the basis of technique scheme, master control selects module 205 according to the routing address of routing selecting module 204, determines the outgoing route of different business, and different type of service is after treatment input in downstream unit.
On the basis of technique scheme, when having included business routing iinformation, this signal of routing iinformation insert module 202 transparent transmissions in the TTI byte of ODUk expense in OTN signal or other reserve bytes.
Realization of the present invention grouping and OTN combined signal be from method and the device of route, can self adaptation identifies the routing iinformation of packet signal and OTN signal, at transmission node place intelligent selection transmission path, reduces manually-operated complexity.
Brief description of the drawings
The present invention has following accompanying drawing:
Fig. 1 realizes grouping and OTN combined signal from the schematic flow sheet of the method for route;
Fig. 2 realizes grouping and OTN combined signal from the structural representation of the device of route.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, realization grouping of the present invention and OTN combined signal, from the method for route, comprise the following steps:
Step 101, at the signal sending/receiving end as transmission node, according to default or the automatic business configuration management information of identifying, classifies the business of input according to Packet Service and OTN business;
Step 102, when the business of input is Packet Service, when output is also Packet Service, carries out the route of Packet Service according to existing Packet Service route selection method;
Step 103, in the time that the business of input is OTN business, according to default business routing iinformation, business routing iinformation is input to (the business granule of OTN in transmission of ODUk in OTN signal, OpticalChannel Data Unit) in TTI (Trail trace identifier, the trail trace identifier) byte or other reserve bytes of expense;
Further, according to different types of service and routing address, different routing iinformations is input in the expense of ODUk of different brackets;
Step 104, in the Route Selection unit of signal sending/receiving end, judges process step 102 or step 103 signal after treatment by framing/bag module;
Step 105, if result of determination is packet signal, carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path;
Step 106, if result of determination is OTN signal, first obtain the business routing iinformation in TTI byte or other reserve bytes of ODUk, select routing address according to the address information in the business routing iinformation extracting and the address table in Route Selection unit, determine transmission path.
Principle of the present invention is: by business routing iinformation (destination address) being inserted into TTI byte or other reserve bytes of ODUk expense in OTN signal, by the processing to these routing iinformations, make OTN signal can realize intelligent Route Selection together with packet signal.
On the basis of technique scheme, when the business of input is Packet Service, while being output as OTN business, input is packet signal, and this packet signal need to be sealed while being mapped to OTN signal, extract the route switching information of this packet signal, and (converting business routing iinformation to) after this route switching information conversion is input in the TTI byte or other reserve bytes of ODUk expense in OTN signal.
On the basis of technique scheme, the route switching information of described packet signal at least comprises: IP address, MAC Address, MPLS address and Vlan address.That is: include but not limited to all route switching information for packet signal route switching such as IP address, MAC Address, MPLS address and Vlan address.
On the basis of technique scheme, when having included business routing iinformation, this signal of transparent transmission in the TTI byte of ODUk expense in OTN signal or other reserve bytes.
Method for above-mentioned realization grouping and OTN combined signal from route, the present invention give a kind of realize divide into groups and OTN combined signal from the device of route, as shown in Figure 2, this device is arranged between the customer side and line side on the veneer of line side, comprising:
Method for above-mentioned realization grouping and OTN combined signal from route, the present invention give a kind of realize divide into groups and OTN combined signal from the device of route, as shown in Figure 2, this device is arranged between the customer side and line side on the veneer of line side, comprising:
Business configuration administration module 201, for basis, the default or automatic business configuration management information of identifying, classifies the business from customer side input according to Packet Service and OTN business;
Routing iinformation insert module 202, for extracting business routing iinformation be input in the TTI byte or other reserve bytes of OTN signal ODUk expense;
Framing/bag module 203, for judging the type of service signal;
Routing selecting module 204, carry out routing function for the Different Results of judging according to framing/bag module 203, if result of determination is packet signal, routing selecting module 204 carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path; If result of determination is OTN signal, first obtain the business routing iinformation in TTI byte or other reserve bytes of ODUk, select routing address according to the address information in the business routing iinformation extracting and the address table in Route Selection unit, determine transmission path;
As shown in Figure 2, business configuration administration module 201 data after treatment are sent into routing iinformation insert module 202, routing iinformation insert module 202 data after treatment are sent into framing/bag module 203, framing/bag module 203 data after treatment are sent into routing selecting module 204, and master control selects module 205 respectively business configuration administration module 201, routing iinformation insert module 202, framing/bag module 203, routing selecting module 204 to be controlled.
On the basis of technique scheme, described master control selects module 205 to comprise: CPU and the FPGA being connected with CPU.
On the basis of technique scheme, master control selects module 205 according to the routing address of routing selecting module 204, determines the outgoing route of different business, and different type of service is after treatment input in downstream unit.
On the basis of technique scheme, when having included business routing iinformation, this signal of routing iinformation insert module 202 transparent transmissions in the TTI byte of ODUk expense in OTN signal or other reserve bytes.
The present invention is inserted into routing iinformation in the TTI byte or other reserve bytes of OTN signal overhead, by routing selecting module, the OTN signal that has same routing address is sent to identical destination, reaches OTN and Packet Service and combines the function from route.The one below the present embodiment being proposed realizes mixed service and the adaptive method of intersection particle is described in detail, and the method specifically comprises:
Step 101, in signal sending/receiving end basis, the default or automatic business configuration management information of identifying, classifies the business of input according to Packet Service and OTN business;
Step 102, when the business of input is Packet Service, when output is also Packet Service, carries out the route of Packet Service according to existing Packet Service route selection method; ,
Step 103, in the time that the business of input is OTN business, according to default business routing iinformation, is input to business routing iinformation in the TTI byte or other reserve bytes of ODUk expense in OTN signal;
Step 104, when input is packet signal, and this packet signal need to be sealed while being mapped to OTN signal, extract the route switching information of this packet signal, and will after this route switching information conversion, be input in the TTI byte or other reserve bytes of ODUk expense in OTN signal;
Step 105, in Route Selection unit, framing/bag module is judged signal;
Step 106, if result of determination is packet signal, carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path;
Step 107, if judge it is OTN signal, selects routing address according to the address information in the ODUk signal TTI or other reserve bytes that extract and the address table in Route Selection unit, determines transmission path.
The 1st step, in signal sending/receiving end 201 bases, business configuration management information that preset or that automatically identify, classifies the business of input according to Packet Service and OTN business, and result of determination is outputed to master control selection module 205, proceeds to the 2nd step;
The 2nd step, in the time that routing iinformation insert module 202 judges that service signal has comprised routing iinformation, this signal of routing iinformation insert module transparent transmission enters the 4th step, otherwise enters the 3rd step;
The 3rd step, when the business of input is Packet Service, when output is also Packet Service, carries out the route of Packet Service according to existing Packet Service route selection method; In the time that the business of input is OTN business, according to default business routing iinformation, business routing iinformation is input in the TTI byte of ODUk expense in OTN signal or other reserve bytes and enters the 4th step, when input is packet signal, and this packet signal need to be sealed while being mapped to OTN signal, extract the route switching information of this packet signal, and will after this route switching information conversion, be input in the TTI byte or other reserve bytes of ODUk expense in OTN signal;
The 4th step, framing/bag module judges signal, and result is outputed to master control selects module, enters the 5th step;
The 5th step, if result of determination is packet signal, routing selecting module is according to the route of carrying out Packet Service according to existing Packet Service route selection method, determine transmission path, if judge it is OTN signal, routing selecting module is selected routing address according to the address information in the ODUk signal TTI or other reserve bytes that extract and the address table in Route Selection unit, determines transmission path.
Above the embodiment of the present invention is described in detail, has applied embodiment herein the present invention is set forth, the explanation of above embodiment is just for helping to understand method and apparatus of the present invention; Simultaneously; for one of ordinary skill in the art; according to thought of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and every utilization or be indirectly used in other correlative technology field is all in like manner included in scope of patent protection of the present invention.
The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (7)
1. realize grouping and OTN combined signal from a method for route, it is characterized in that, comprise the following steps:
Step 101, at the signal sending/receiving end as transmission node, according to default or the automatic business configuration management information of identifying, classifies the business of input according to Packet Service and OTN business;
Step 102, when the business of input is Packet Service, when output is also Packet Service, carries out the route of Packet Service according to existing Packet Service route selection method;
Step 103, when the business of input is while being OTN business, according to default business routing iinformation, is input to business routing iinformation in OTN signal in transmission in the trail trace identifier TTI byte or other reserve bytes of the business granule ODUk expense of OTN; When the business of input is Packet Service, while being output as OTN business, input is packet signal, and this packet signal need to be sealed while being mapped to OTN signal, extract the route switching information of this packet signal, and will after this route switching information conversion, be input in the TTI byte or other reserve bytes of ODUk expense in OTN signal;
Step 104, judges process step 102 or step 103 signal after treatment by framing/bag module;
Step 105, if result of determination is packet signal, carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path;
Step 106, if result of determination is OTN signal, first obtain the business routing iinformation in TTI byte or other reserve bytes of ODUk, select routing address according to the address information in the business routing iinformation extracting and the address table in Route Selection unit, determine transmission path.
2. realization grouping as claimed in claim 1 and OTN combined signal, from the method for route, is characterized in that: the route switching information of described packet signal at least comprises: IP address, MAC Address, MPLS address and Vlan address.
3. realization as claimed in claim 1 or 2 grouping and OTN combined signal, from the method for route, is characterized in that: when having included business routing iinformation, this signal of transparent transmission in the TTI byte of ODUk expense in OTN signal or other reserve bytes.
4. realize grouping and OTN combined signal from a device for route, it is characterized in that, this device is arranged between the customer side and line side on the veneer of line side, comprising:
Business configuration administration module (201), for basis, the default or automatic business configuration management information of identifying, classifies the business from customer side input according to Packet Service and OTN business;
Routing iinformation insert module (202), for extracting business routing iinformation be input in the TTI byte or other reserve bytes of OTN signal ODUk expense;
Framing/bag module (203), for judging the type of service signal;
Routing selecting module (204), carry out routing function for the Different Results of judging according to framing/bag module (203), if result of determination is packet signal, routing selecting module (204) carries out the route of Packet Service according to existing Packet Service route selection method, determine transmission path; If result of determination is OTN signal, first obtain the business routing iinformation in TTI byte or other reserve bytes of ODUk, select routing address according to the address information in the business routing iinformation extracting and the address table in Route Selection unit, determine transmission path;
Module (205) is selected in master control, is used to different types of service select output channel and send into line side according to routing select result.
5. realization grouping as claimed in claim 4 and OTN combined signal, from the device of route, is characterized in that: described master control selects module (205) to comprise: CPU and the FPGA being connected with CPU.
6. realization grouping as claimed in claim 4 and OTN combined signal are from the device of route, it is characterized in that: master control selects module (205) according to the routing address of routing selecting module (204), determine the outgoing route of different business, different type of service is after treatment input in downstream unit.
7. realization grouping as claimed in claim 4 and OTN combined signal are from the device of route, it is characterized in that: when having included business routing iinformation, this signal of routing iinformation insert module (202) transparent transmission in the TTI byte of ODUk expense in OTN signal or other reserve bytes.
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CN102685015A (en) * | 2012-05-30 | 2012-09-19 | 烽火通信科技股份有限公司 | Method and device for realizing normalization of TDM (Time Division Multiplexing) and grouping mixed services |
CN105871467B (en) * | 2015-01-19 | 2018-03-23 | 中国移动通信集团公司 | A kind of device of adaptive connection in optical network system and optical network system |
CN107342949B (en) * | 2017-06-12 | 2019-08-20 | 烽火通信科技股份有限公司 | It is a kind of realize TDM and Packet Service statistical multiplex transmission device, method |
CN113037645A (en) * | 2019-12-24 | 2021-06-25 | 深圳市中兴微电子技术有限公司 | Service transmission method and device, computer readable storage medium and electronic device |
CN114697772A (en) * | 2020-12-31 | 2022-07-01 | 华为技术有限公司 | Service configuration method and device |
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WO2004102849A2 (en) * | 2003-05-06 | 2004-11-25 | Cisco Technology, Inc. | Routes based on a pattern of a received packet |
US7324453B2 (en) * | 2002-08-30 | 2008-01-29 | Alcatel Lucent | Constraint-based shortest path first method for dynamically switched optical transport networks |
WO2008154181A1 (en) * | 2007-06-05 | 2008-12-18 | Cisco Technology, Inc. | Response to otuk-bdi for otn interfaces to restore bidirectional communications |
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US7324453B2 (en) * | 2002-08-30 | 2008-01-29 | Alcatel Lucent | Constraint-based shortest path first method for dynamically switched optical transport networks |
WO2004102849A2 (en) * | 2003-05-06 | 2004-11-25 | Cisco Technology, Inc. | Routes based on a pattern of a received packet |
WO2008154181A1 (en) * | 2007-06-05 | 2008-12-18 | Cisco Technology, Inc. | Response to otuk-bdi for otn interfaces to restore bidirectional communications |
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