CN107786260B - Service transmission method and system - Google Patents
Service transmission method and system Download PDFInfo
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- CN107786260B CN107786260B CN201610712558.1A CN201610712558A CN107786260B CN 107786260 B CN107786260 B CN 107786260B CN 201610712558 A CN201610712558 A CN 201610712558A CN 107786260 B CN107786260 B CN 107786260B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
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Abstract
The invention provides a service transmission method and a system, wherein the method comprises the following steps: acquiring a transmission path of a service to be transmitted, wherein the transmission path comprises a transmission node of an optical layer network; determining a first response strategy of the service to be transmitted on an IP layer network; determining a second response strategy of the service to be transmitted in the optical layer network according to the first response strategy; and controlling a transmission node of the optical layer network in the transmission path to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy, thereby mapping the transmission characteristic requirement of the service to be transmitted to the optical layer network, improving the pertinence of the transmission of the service to be transmitted in the optical layer network, and optimizing the transmission resource of the optical layer network.
Description
Technical Field
The present invention relates to the field of network communications, and in particular, to a service transmission method and system.
Background
Currently, the network of each large network operator generally consists of two parts, i.e., an IP layer network and an optical layer network: the IP layer network is responsible for data grouping and forwarding; the optical layer network is responsible for large-capacity and ultra-long distance transmission and provides an optical channel for the IP layer network. The IP layer network and the optical layer network are hierarchically planned and independently operated and maintained, and the connection between the IP layer network and the optical layer network is mainly concentrated on the optical layer network to provide statically configured physical link resources for the IP layer network. In the whole network transmission process, the IP layer network cannot judge the network topology and protection capability of the optical layer network, and the optical layer network cannot sense the dynamic service requirement of the IP layer network. It can be seen that, at present, when a service is transmitted, service characteristics cannot be transmitted to an optical layer network.
Disclosure of Invention
Embodiments of the present invention provide a service transmission method and system, which solve the problem of mapping transmission characteristics of a service to an optical layer network.
In order to achieve the above object, an embodiment of the present invention provides a service transmission method, including: acquiring a transmission path of a service to be transmitted, wherein the transmission path comprises a transmission node of an optical layer network; determining a first response strategy of the service to be transmitted on an IP layer network; determining a second response strategy of the service to be transmitted in the optical layer network according to the first response strategy; and controlling the transmission node of the optical layer network to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy.
An embodiment of the present invention further provides a service transmission system, including: the system comprises an acquisition module, a transmission module and a processing module, wherein the acquisition module is used for acquiring a transmission path of a service to be transmitted, and the transmission path comprises a transmission node of an optical layer network; the first determining module is used for determining a first response strategy of the service to be transmitted on the IP layer network; a second determining module, configured to determine, according to the first response policy, a second response policy of the service to be transmitted in the optical layer network; and the control module is used for controlling the transmission node of the optical layer network in the transmission path to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy.
An embodiment of the present invention further provides a computer storage medium, where one or more programs executable by a computer are stored in the computer storage medium, and when the one or more programs are executed by the computer, the computer is caused to execute a service transmission method as provided above.
One of the above technical solutions has the following advantages or beneficial effects: the response strategy of the service to be transmitted in the optical layer network is issued to the transmission node of the optical layer network in the transmission path through the transmission path of the service to be transmitted, so that the transmission node performs response configuration according to the response strategy of the service to be transmitted in the optical layer network when processing the transmission of the service to be transmitted in the optical layer network, the transmission characteristic requirement of the service to be transmitted is mapped to the optical layer network, the transmission pertinence of the service to be transmitted in the optical layer network is improved, and the transmission resource of the optical layer network is optimized.
Drawings
Fig. 1 is a flowchart of a service transmission method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a service transmission method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of another service transmission method according to an embodiment of the present invention;
fig. 4 is a structural diagram of a service transmission system according to an embodiment of the present invention;
fig. 5 is a structural diagram of another service transmission system according to an embodiment of the present invention;
fig. 6 is a structural diagram of another service transmission system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention further provides a service transmission method, including the following steps:
step S101, a transmission path of the service to be transmitted is obtained, wherein the transmission path comprises a transmission node of an optical layer network.
Specifically, the transmission path of the service to be transmitted needs to be formed according to different network layers, and the layer-by-layer planning and transmission are performed.
Firstly, a transmission path of the service to be transmitted in the IP layer network is obtained. Because the IP layer network can directly sense the service to be transmitted, a transmission path between the routers of the IP layer network nodes can be established in the IP layer network through a path planning tool. The path planning tool may be an APP planning tool. The APP planning tool can meet the requirements of graphical service planning, so that IP flow and link planning among the node routers are carried out in a graphical interface through the APP planning tool, and visibility is stronger.
And secondly, determining a transmission node on the optical layer network which has a connection relation with the service to be transmitted on the transmission path of the IP layer network. In general, node routers of an IP layer network correspond one-to-one to transport nodes of an optical layer network. After the transmission path of the service to be transmitted in the IP layer network is obtained, the transmission node of the optical layer network corresponding to the node router of the service to be transmitted in the transmission path of the IP layer network can be determined.
And finally, planning the transmission path of the service to be transmitted in the whole network according to the transmission path of the service to be transmitted in the IP layer network and the transmission node on the optical layer network which has a link relation with the transmission path of the service to be transmitted in the IP layer network. And when the transmission path of the service to be transmitted on the IP layer network is determined, transmitting the node on the optical layer network which has a link relation with the transmission path of the service to be transmitted on the IP layer network. And a transmission path of the service to be transmitted in the whole IP + optical network is formed by reporting and cooperating the information of the IP layer network and the optical layer network.
Preferably, the transmission path of the service to be transmitted on the IP layer network includes a start point and an end point, the transmission node on the optical layer network that has a connection relationship with the transmission path of the service to be transmitted on the IP layer network includes a source node and a destination node on the optical layer network that are connected with the start point and the end point, and the source node and the destination node on the optical layer network establish the transmission path of the transmission service on the whole network according to the start point and the end point on the IP layer network and the source node and the destination node on the optical layer network, where the transmission path of the transmission service on the whole network includes a direct path between the source node and the destination node on the optical layer network. As shown in fig. 2, the starting point of the service to be transmitted on the transmission path of the IP layer network is a, and the destination is F, so the IP traffic from the starting point a to the destination F generally proceeds 4 hops by routers of the IP layer network nodes through a < - > B < - > C < - > F or a < - > D < - > E < - > F. Since the node router B, C or D, E through which traffic passes between the starting point a and the end point F only undertakes a pure forwarding function, there is a waste of router processing resources, and at this time, a transmission node on the optical layer network having a link relationship with the starting point a and the end point F is determined according to the starting point a and the end point F: and directly opening A direct path between the source node OTN-A and the destination node OTN-F, thereby forming A transmission path of the service to be transmitted in the whole IP + optical network, avoiding the forwarding of an intermediate transmission node and realizing the optimization of the transmission path.
And step S102, determining a first response strategy of the service to be transmitted on the IP layer network.
Specifically, the service to be transmitted has service-specific attributes, such as service type, service priority, or service importance. Therefore, different services have different transmission requirements according to different service attributes. And in view of the direct perception of the IP layer network to the operator to be transmitted, determining a first response strategy of the service to be transmitted in the IP layer network transmission according to different service classes to be transmitted. For example, the following table shows the classification definitions of traffic transmission priorities by a certain network operator. And distinguishing different priorities of different services according to the service attributes, wherein the priorities defined from EF and AF to BF are sequentially decreased, EF represents accelerated forwarding, AF represents guaranteed forwarding, and BF represents best effort.
The priority classification may be implemented in various ways, including classification based on a two-layer COS defined by an 802.1p protocol, classification based on an exp field in an MPLS packet, classification based on ToS/DSCP in an IP header, and classification based on a quintuple (source IP address, destination IP address, protocol number, source port, and destination port), and these classification schemes may be planned and configured on an APP planning tool.
As shown in fig. 3, the issuing of the priority response policy forms three forwarding sub-paths corresponding to the priorities EF, AF, and BF between the IP layer network transmission path node router and the optical layer network transmission node, and selects a corresponding sub-path according to the priorities EF, AF, or BF, thereby completing transmission mapping of the service priority from the IP layer network to the optical layer network. The issuing of the priority response policy may also be implemented on the APP planning tool.
Step S103, determining a second response strategy of the service to be transmitted in the optical layer network according to the first response strategy.
Specifically, due to the difference in transmission functions between the IP layer network and the optical layer network, the responses of the IP layer network and the optical layer network to the transmission requirements of the service to be transmitted are different. However, a first response strategy of the service to be transmitted on the IP layer network and a second response strategy of the service to be transmitted on the optical layer network have a certain matching relationship. Taking the above requirement of a certain network operator on the priority of service transmission as an example, the response requirement of the service to be transmitted in any one or more aspects of the error rate, the time delay and the fault recovery time of the optical layer network can be determined according to the priority of the service to be transmitted in the IP layer network transmission. The specific correspondence is shown in the following table:
and step S104, controlling the transmission node of the optical layer network to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy.
Specifically, a plurality of optical layer network sub-paths corresponding to the second response strategy are established on transmission nodes of an optical layer network in the transmission path; and controlling a transmission node of an optical layer network in the transmission path to select the corresponding optical layer network sub-path according to the second response strategy, and transmitting the service to be transmitted according to the second response strategy. As shown in fig. 3, the requirement of a certain network operator for the priority of service transmission is taken as an example. The second response policies corresponding to the priorities EF, AF, and BF on the IP layer network are an EF working/protection group, an AF working/protection group, and a BF working/protection group, respectively. Three optical layer network sub-paths corresponding to A second response strategy are respectively established between the transmission node optical devices OTN-A and OTN-F of the optical layer network: an FA-LSP-EF work/protection group, an FA-LSP-AF work/protection group, and an FA-LSP-BF work/protection group. When the service to be transmitted is transmitted in the optical layer network, controlling the optical devices OTN-A and OTN-F to select corresponding optical layer network sub-paths according to A second response strategy: and the FA-LSP-EF working/protecting group, the FA-LSP-AF working/protecting group and the FA-LSP-BF working/protecting group enable the optical equipment OTN-A and OTN-F to process the transmission of the service to be transmitted in the optical layer network according to three different second response strategies.
In this embodiment, a response policy of a service to be transmitted in an optical layer network is issued to a transmission node of the optical layer network in the transmission path through a transmission path of the service to be transmitted, so that the transmission node performs response configuration according to the response policy of the service to be transmitted in the optical layer network when processing transmission of the service to be transmitted in the optical layer network, thereby mapping a transmission characteristic requirement of the service to be transmitted to the optical layer network, improving pertinence of transmission of the service to be transmitted in the optical layer network, and optimizing transmission resources of the optical layer network.
As shown in fig. 4, an embodiment of the present invention provides a service transmission system 40, including:
an obtaining module 41, configured to obtain a transmission path of a service to be transmitted, where the transmission path includes a transmission node of an optical layer network;
a first determining module 42, configured to determine a first response policy of the service to be transmitted on the IP layer network;
a second determining module 43, configured to determine, according to the first response policy, a second response policy of the service to be transmitted in the optical layer network;
and the control module 44 is configured to control a transmission node of the optical layer network in the transmission path to process transmission of the service to be transmitted in the optical layer network according to the second response policy.
Optionally, as shown in fig. 5, the obtaining module 41 includes:
an obtaining unit 411, configured to obtain a transmission path of the service to be transmitted in the IP layer network;
a determining unit 412, configured to determine a transmission node on the optical layer network, where the transmission node has a connection relationship with the service to be transmitted on a transmission path of the IP layer network;
and the planning unit 413 is configured to establish a transmission path of the transmission traffic in the whole network according to the starting point and the ending point on the IP layer network and the source node and the destination node on the optical layer network, where the transmission path of the transmission traffic in the whole network includes a direct path between the source node and the destination node on the optical layer network.
Optionally, a transmission path of the service to be transmitted on the IP layer network includes a starting point and an ending point, and the transmission node on the optical layer network that has a connection relationship with the transmission path of the service to be transmitted on the IP layer network includes a source node and a destination node on the optical layer network that are connected with the starting point and the ending point;
the planning unit 413 is configured to establish a transmission path of the transmission traffic in the whole network according to a starting point and an ending point of the transmission traffic in a transmission path of the IP-layer network, and a source node and a destination node on the optical-layer network connected to the starting point and the ending point, where the transmission path of the transmission traffic in the whole network includes a direct path between the source node and the destination node on the optical-layer network.
Optionally, the response policy of the service to be transmitted on the IP layer network includes the priority of the service to be transmitted on the IP layer network,
the second determining module 43 is configured to determine, according to the priority of the service to be transmitted in the IP layer network, a response requirement of the service to be transmitted in any one or more of the bit error rate, the time delay, and the failure recovery time of the optical layer network.
Optionally, as shown in fig. 6, the control module 44 includes:
a sub-path establishing unit 441, configured to establish a plurality of optical layer network sub-paths corresponding to the second response policy on transmission nodes of an optical layer network in the transmission path;
a transmission unit 442, configured to control a transmission node of an optical layer network in the transmission path to select the corresponding optical layer network sub-path according to the second response policy, and transmit the service to be transmitted according to the second response policy.
In this embodiment, a response policy of a service to be transmitted in an optical layer network is issued to a transmission node of the optical layer network in the transmission path through a transmission path of the service to be transmitted, so that the transmission node performs response configuration according to the response policy of the service to be transmitted in the optical layer network when processing transmission of the service to be transmitted in the optical layer network, thereby mapping a transmission characteristic requirement of the service to be transmitted to the optical layer network, improving pertinence of transmission of the service to be transmitted in the optical layer network, and optimizing transmission resources of the optical layer network.
It will be understood by those skilled in the art that all or part of the steps of the method for implementing the above embodiments may be implemented by hardware associated with program instructions, and the program may be stored in a computer readable medium, and when executed, the program includes the following steps:
acquiring a transmission path of a service to be transmitted, wherein the transmission path comprises a transmission node of an optical layer network;
determining a first response strategy of the service to be transmitted on an IP layer network;
determining a second response strategy of the service to be transmitted in the optical layer network according to the first response strategy;
and controlling the transmission node of the optical layer network to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy.
Optionally, the obtaining a transmission path of the service to be transmitted, where the transmission path of the service to be transmitted includes a transmission node of an optical layer network, includes:
acquiring a transmission path of the service to be transmitted in the IP layer network;
determining a transmission node on the optical layer network which has a connection relation with the transmission path of the service to be transmitted on the IP layer network;
and planning the transmission path of the service to be transmitted in the whole network according to the transmission path of the service to be transmitted in the IP layer network and the transmission node on the optical layer network which has a link relation with the transmission path of the service to be transmitted in the IP layer network.
Optionally, a transmission path of the service to be transmitted on the IP layer network includes a starting point and an ending point, and the transmission node on the optical layer network that has a connection relationship with the transmission path of the service to be transmitted on the IP layer network includes a source node and a destination node on the optical layer network that are connected with the starting point and the ending point;
the step of determining the transmission path of the service to be transmitted in the whole network according to the transmission path of the service to be transmitted in the IP layer network and the transmission node on the optical layer network which has a link relation with the transmission path of the service to be transmitted in the IP layer network comprises the following steps:
and establishing a transmission path of the transmission service in the whole network according to the starting point and the end point on the IP layer network and the source node and the destination node on the optical layer network, wherein the transmission path of the transmission service in the whole network comprises a direct path between the source node and the destination node on the optical layer network.
Optionally, the first response policy includes a priority of the service to be transmitted in IP layer network transmission, and the step of determining, according to the first response policy, a second response policy of the service to be transmitted in an optical layer network includes:
and determining the response requirements of the service to be transmitted on any one or more aspects of the error rate, the time delay and the fault recovery time of the optical layer network according to the priority of the service to be transmitted on the IP layer network.
Optionally, the step of controlling a transmission node of an optical layer network in the transmission path to process transmission of the service to be transmitted in the optical layer network according to the second response policy includes:
establishing a plurality of optical layer network sub-paths corresponding to the second response strategy on transmission nodes of an optical layer network in the transmission path;
and controlling a transmission node of an optical layer network in the transmission path to select the corresponding optical layer network sub-path according to the second response strategy, and transmitting the service to be transmitted according to the second response strategy.
The storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A method for service transmission, comprising:
acquiring a transmission path of a service to be transmitted, wherein the transmission path comprises a transmission node of an optical layer network;
determining a first response strategy of the service to be transmitted on an IP layer network;
determining a second response strategy of the service to be transmitted in the optical layer network according to the first response strategy;
controlling the transmission node of the optical layer network to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy;
the step of obtaining the transmission path of the service to be transmitted includes: acquiring a transmission path of the service to be transmitted in the IP layer network;
determining a transmission node on the optical layer network which has a connection relation with the transmission path of the service to be transmitted on the IP layer network;
and planning the transmission path of the service to be transmitted in the whole network according to the transmission path of the service to be transmitted in the IP layer network and the transmission node on the optical layer network which has a connection relation with the transmission path of the service to be transmitted in the IP layer network.
2. The method according to claim 1, wherein the transmission path of the traffic to be transmitted on the IP-layer network includes a starting point and an end point, and the transmission nodes on the optical-layer network that are in connection with the transmission path of the IP-layer network include a source node and a destination node on the optical-layer network that are connected with the starting point and the end point;
the step of determining the transmission path of the service to be transmitted in the whole network according to the transmission path of the service to be transmitted in the IP layer network and the transmission node on the optical layer network which has a connection relation with the transmission path of the service to be transmitted in the IP layer network comprises the following steps:
and establishing a transmission path of the transmission service in the whole network according to the starting point and the end point on the IP layer network and the source node and the destination node on the optical layer network, wherein the transmission path of the transmission service in the whole network comprises a direct path between the source node and the destination node on the optical layer network.
3. The method of claim 1, wherein the first response policy includes a priority level of the traffic to be transmitted in an IP layer network, and the step of determining the second response policy of the traffic to be transmitted in an optical layer network according to the first response policy includes:
and determining the response requirements of the service to be transmitted on any one or more aspects of the error rate, the time delay and the fault recovery time of the optical layer network according to the priority of the service to be transmitted on the IP layer network.
4. The method according to claim 1, wherein the step of controlling the transmission node in the optical layer network in the transmission path to process the transmission of the traffic to be transmitted in the optical layer network according to the second response policy comprises:
establishing a plurality of optical layer network sub-paths corresponding to the second response strategy on transmission nodes of an optical layer network in the transmission path;
and controlling a transmission node of an optical layer network in the transmission path to select the corresponding optical layer network sub-path according to the second response strategy, and transmitting the service to be transmitted according to the second response strategy.
5. A traffic transmission system, comprising:
the system comprises an acquisition module, a transmission module and a processing module, wherein the acquisition module is used for acquiring a transmission path of a service to be transmitted, and the transmission path comprises a transmission node of an optical layer network;
the first determining module is used for determining a first response strategy of the service to be transmitted on the IP layer network;
a second determining module, configured to determine, according to the first response policy, a second response policy of the service to be transmitted in the optical layer network;
the control module is used for controlling the transmission node of the optical layer network in the transmission path to process the transmission of the service to be transmitted in the optical layer network according to the second response strategy;
the acquisition module includes:
an obtaining unit, configured to obtain a transmission path of the service to be transmitted in the IP layer network;
a determining unit, configured to determine a transmission node on the optical layer network, where the transmission node has a connection relationship with the service to be transmitted on a transmission path of the IP layer network;
and the planning unit is used for planning the transmission path of the service to be transmitted in the whole network according to the transmission path of the service to be transmitted in the IP layer network and the transmission node on the optical layer network which is in connection with the transmission path of the service to be transmitted in the IP layer network.
6. The system according to claim 5, wherein the transmission path of the traffic to be transmitted on the IP-layer network includes a starting point and an end point, and the transmission nodes on the optical-layer network in connection with the transmission path of the IP-layer network include a source node and a destination node on the optical-layer network connected with the starting point and the end point;
and the planning unit is used for establishing a transmission path of the transmission service in the whole network according to the starting point and the end point on the IP layer network and the source node and the destination node on the optical layer network, wherein the transmission path of the transmission service in the whole network comprises a direct path between the source node and the destination node on the optical layer network.
7. The system of claim 5, wherein the first response policy comprises a priority of the traffic to be transmitted for transmission over an IP layer network,
the second determining module is configured to determine, according to the priority of the service to be transmitted in the IP layer network, a response requirement of the service to be transmitted in any one or more of an error rate, a time delay, and a failure recovery time of the optical layer network.
8. The system of claim 5, wherein the control module comprises:
a sub-path establishing unit, configured to establish multiple optical layer network sub-paths corresponding to the second response policy on a transmission node of an optical layer network in the transmission path;
and the transmission unit is used for controlling a transmission node of an optical layer network in the transmission path to select the corresponding optical layer network sub-path according to the second response strategy and transmitting the service to be transmitted according to the second response strategy.
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| CN101048009A (en) * | 2006-03-31 | 2007-10-03 | 株式会社日立制作所 | Method and system for controlling IP packet service quality in passive optical network system |
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| CN101459574A (en) * | 2007-12-14 | 2009-06-17 | 华为技术有限公司 | Network deployment method, network system and IP node |
| CN102970225A (en) * | 2012-11-13 | 2013-03-13 | 同济大学 | Internet protocol (IP) over wavelength division multiplexing (WDM) network energy-aware routing method based on multipriority business |
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