CN116132293A - Service opening method and device based on user demand and network configuration mapping rule - Google Patents
Service opening method and device based on user demand and network configuration mapping rule Download PDFInfo
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- CN116132293A CN116132293A CN202211489839.7A CN202211489839A CN116132293A CN 116132293 A CN116132293 A CN 116132293A CN 202211489839 A CN202211489839 A CN 202211489839A CN 116132293 A CN116132293 A CN 116132293A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0893—Assignment of logical groups to network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/084—Configuration by using pre-existing information, e.g. using templates or copying from other elements
- H04L41/0846—Configuration by using pre-existing information, e.g. using templates or copying from other elements based on copy from other elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/085—Retrieval of network configuration; Tracking network configuration history
- H04L41/0853—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
Abstract
The invention discloses a service opening method based on user requirements and network configuration mapping rules, which comprises the following steps: issuing an end-to-end service creation request facing to user demands based on a user-facing end-to-end service configuration interface; based on the mapping rule of the user demand and the network configuration parameter, converting the user demand into a corresponding network side end-to-end service configuration parameter; based on the network side end-to-end service configuration parameters, converting the network side end-to-end service configuration parameters into intra-domain service configuration parameters of each single-domain management and control function according to a splitting or direct mapping method; and issuing a pre-calculation request of the intra-domain service to each single-domain management and control system based on the intra-domain service configuration parameters, and creating the service according to the pre-calculation result. The invention simplifies the user service configuration, supports one-key end-to-end service configuration, and realizes the rapid mapping from the user requirement to the network configuration parameter. The invention also provides a corresponding service opening device based on the user demand and the network configuration mapping rule.
Description
Technical Field
The invention belongs to the technical field of network management and control, and particularly relates to a service opening method and device based on user requirements and network configuration mapping rules.
Background
The traditional network management and control system adopts a stepwise creation mode to create the end-to-end service, the creation process is complex, the parameter configuration is complex, the operation and maintenance personnel operation are not facilitated, the service opening efficiency is low, and the requirement of rapidly opening the end-to-end service cannot be met. In addition, the traditional end-to-end service opening mode is a configuration mode facing to network management and equipment, and does not support a configuration mode facing to users, namely, the user requirements and corresponding network configuration parameters cannot be mapped, and the requirements of quick opening of the end-to-end service facing to the users are not met. How to solve the mapping rule of the user requirement and the network configuration parameter and how to realize the quick opening of the end-to-end service facing the user becomes the current urgent problem to be solved.
Disclosure of Invention
The patent provides a service opening method based on user requirements and network configuration mapping rules, which is used for solving the technical problem of realizing quick opening of an end-to-end service facing the user requirements: 1. the mapping rule between the user demand and the network configuration parameter is lacking, and the user demand cannot be quickly converted into the corresponding network configuration parameter, so that the configuration process is complex. 2. The end-to-end service opening interface based on the user requirement is lacking, and the service creation request cannot be directly issued based on the user requirement.
To achieve the above object, according to one aspect of the present invention, there is provided a service provisioning method based on user requirements and network configuration mapping rules, including the steps of:
s11: issuing an end-to-end service creation request facing to user demands based on a user-facing end-to-end service configuration interface;
s12: based on the mapping rule of the user demand and the network configuration parameter, converting the user demand into a corresponding network side end-to-end service configuration parameter;
s13: based on the network side end-to-end service configuration parameters, converting the network side end-to-end service configuration parameters into intra-domain service configuration parameters of each single-domain management and control function according to a splitting or direct mapping method;
s14: and issuing a pre-calculation request of the intra-domain service to each single-domain management and control system based on the intra-domain service configuration parameters, and creating the service according to the pre-calculation result.
In one embodiment of the present invention, the network side end-to-end service configuration parameters in step S12 include:
protection recovery strategy: configuring protection, including protection type, protection hierarchy and protection attribute; or configuring reroutes including reroute enabling and rerouting hierarchies;
routing constraint policy: the same route or maximum time delay is avoided by setting resources and not by restricting the resource setting and sharing the risk link group;
bandwidth policy: CIR configuration and PIR configuration.
In one embodiment of the present invention, the mapping rule of the user requirement and the network configuration parameter in step S12 specifically includes:
the 'reliability' requirement is correspondingly converted into a 'protection recovery strategy' and a 'routing constraint strategy' in a network configuration parameter column, and different network configuration parameter values are correspondingly distributed according to different requirements of users on reliability indexes; the protection recovery strategy corresponds to the protection of the network side and the configuration parameters related to rerouting; the routing constraint strategy corresponds to the routing related parameter constraint of the network;
the 'time delay' requirement is correspondingly converted into a 'routing constraint strategy-maximum time delay' parameter in a network configuration parameter column;
the bandwidth requirement is correspondingly converted into a bandwidth strategy parameter in a network configuration parameter column;
the service priority requirement is correspondingly converted into a protection recovery strategy in a network configuration parameter column, and different network configuration parameter values are correspondingly distributed according to different service priorities, wherein the protection recovery strategy corresponds to the protection and rerouting related configuration parameters of the network side.
In one embodiment of the present invention, the mapping relationship between the network side end-to-end service configuration parameter and the service configuration parameter in the single domain in the step S13 specifically is:
for the protection type, the protection level and the protection attribute, each single domain adopts a direct mapping method, namely the protection type, the protection level and the protection attribute in the single domain are respectively equal to the protection type, the protection level and the protection attribute in the network side end-to-end service configuration parameters;
for rerouting enabling and rerouting levels, each single domain adopts a direct mapping method, namely the rerouting enabling and rerouting levels in the single domain are respectively equal to the rerouting enabling and rerouting levels in the network side end-to-end service configuration parameters;
for maximum time delay, if splitting is adopted, the time delay value of the network side end-to-end service configuration is distributed to the time delay parameters of the service configuration in each single domain according to preset weights; if the direct mapping is adopted, the time delay parameter of the service configuration in each single domain is less than or equal to the time delay value of the network side end-to-end service configuration;
for the necessary or unnecessary resource setting, adopting direct mapping, namely the necessary/unnecessary resource setting in the single domain is equal to the necessary/unnecessary resource setting in the network side end-to-end service configuration parameters;
for SRLG constraint, adopting direct mapping, namely setting the SRLG constraint equal to the SRLG constraint in the network side-to-end service configuration parameter in the single domain;
for avoiding the same route, adopting direct mapping, namely setting the constraint of avoiding the same route for the service configuration in the single domain;
for the service CIR configuration or PIR configuration, adopting direct mapping, namely the service CIR configuration or PIR configuration in a single domain is equal to the CIR configuration or PIR configuration of the network side end-to-end service; the service layer path of the service in the single domain needs to meet CIR configuration of the network side end-to-end service with the residual bandwidth of the service layer path not less than that of the network side end-to-end service with the PIR of the service layer path not less than that of the network side end-to-end service.
In one embodiment of the present invention, the step S14 specifically includes:
when the end-to-end service is a cross-network service, firstly analyzing and judging whether a single-domain management and control system of a service layer exists a service layer path which meets the creation of the client-side management and control system service:
s141, if the service exists, directly issuing a pre-calculation request of the intra-domain service to the client management and control system, selecting an optimal route meeting the condition according to a pre-calculation return result, and issuing intra-domain service creation according to the route;
s142, if the service layer path pre-calculation request is not existed, the service layer single domain management and control function is issued, an optimal route meeting the condition is selected according to the pre-calculation return result, the service layer path creation request in the domain is issued according to the return result, and then the service creation is completed by referring to the step S141.
In one embodiment of the present invention, the request parameters of the configuration interface facing the user in the step S11 include:
service source information; information of a service destination; a service type; user requirements: including reliability, latency, bandwidth, or traffic priority, the request parameters include one or more parameters in the user's needs.
In one embodiment of the present invention, the service types include: E-LINE, E-LAN, E-TREE, CES, L3VPN, said traffic priority comprising: high, medium, low.
In one embodiment of the present invention, the protection recovery policy specifically includes:
protection type: 1+1 protection, 1:1, protection and no protection;
protection layer: configuring a hierarchy of protected objects;
protection attributes: waiting for a recovery time and a hold-off time;
rerouting enables: enable, disable;
rerouting hierarchy: the hierarchy of rerouted objects is configured.
In one embodiment of the present invention, the routing constraint policy specifically includes:
the following steps are set: nodes, node lower ports and designated paths;
without resource setting: nodes, node lower ports and designated paths;
shared risk link group constraints: avoid the same optical cable, avoid the link of the same risk;
avoiding the same route;
maximum delay.
According to another aspect of the present invention, there is further provided a service provisioning apparatus based on a user requirement and a network configuration mapping rule, including at least one processor and a memory, where the at least one processor and the memory are connected through a data bus, and the memory stores instructions executed by the at least one processor, where the instructions, after being executed by the processor, are configured to complete the service provisioning method based on the user requirement and the network configuration mapping rule.
In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
(1) The invention simplifies the user service configuration and supports one-key end-to-end service configuration by defining the end-to-end service creation interface facing the user demand;
(2) The invention realizes the rapid mapping from the user demands to the network configuration parameters based on the user demands and the network configuration mapping rules, and meets the requirements of rapid opening of the user-oriented service.
Drawings
Fig. 1 is a flow chart of a service opening method based on user requirements and network configuration mapping rules in an embodiment of the present invention;
FIG. 2 is a schematic diagram of mapping rules of user requirements and network configuration parameters according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an end-to-end service creation flow (no available tunnel, no available IP link) under the cooperative control of the IP network and the optical network in embodiment 1 of the present invention;
fig. 4 is a schematic diagram of an end-to-end service creation flow under the cooperative control of the IP network and the optical network in embodiment 2 of the present invention (an available tunnel is provided, and the path of the optical network associated with the tunnel also meets the requirements).
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1, the service opening method based on the mapping rule of user requirements and network configuration provided by the invention comprises the following steps:
s11: an end-to-end service creation request directed to the user's needs is issued based on the user-directed end-to-end service configuration interface.
Wherein the user-oriented configuration interface request parameters in S11 include, but are not limited to, the following information: service source information; information of a service destination; a service type; user requirements: reliability, latency, bandwidth, traffic priority. The request parameters may include one or more parameters in the user's needs.
Further, specific user demand parameters are described as follows:
■ Service source information;
■ Information of a service destination;
■ Service type: ethernet Line (Service), ethernet local area network (Service), ethernet-Local Aera Network (Service), E-LAN, ethernet Tree (Service), E-Tree, circuit emulation Service (Circuit Emulation Service, CES) or three-layer virtual private network (Layer Three Virtual Private Networks, L3 VPN);
■ User requirements:
s12: and converting the user requirements into corresponding network side end-to-end service configuration parameters based on the mapping rules of the user requirements and the network configuration parameters.
The specific information of the network configuration parameters in S12 is as follows:
protection recovery strategy: configuring protection, including protection type, protection hierarchy and protection attribute; or configuring reroutes including rerouting enable and rerouting hierarchy.
Routing constraint policy: the co-routing or maximum latency must be avoided via resource setting, without resource setting, sharing risk link group (Shared Risk Link Groups, SRLG) constraints.
Bandwidth policy: a committed information rate (Committed Information Rate, CIR) configuration, and a peak information rate (Peak Information Rate, PIR) configuration.
Further, specific network side configuration parameters are described as follows:
■ Protection recovery strategy:
■ Routing constraint policy:
■ Bandwidth policy:
The mapping rule of the user requirements and the network configuration parameters in S12 is shown in fig. 2, and the detailed mapping relationship is as follows in table 1:
table 1 mapping rules for user requirements and network configuration parameters
The 'reliability' requirement is correspondingly converted into a 'protection recovery strategy' and a 'routing constraint strategy' in the network configuration parameter column, and different network configuration parameter values are correspondingly distributed according to different requirements of users on the reliability index. The protection recovery strategy corresponds to the protection of the network side and the configuration parameters related to rerouting; the "route constraint policy" corresponds to a route-finding related parameter constraint on the network side, for example, a must-pass/must-not-pass path, an SRLG constraint, avoiding the same route, and the like.
The "latency" requirement is correspondingly translated into a "routing constraint policy-maximum latency" parameter in the network configuration parameter column. The corresponding time delay constraint is that the network side searches the path, and the time delay of the path obtained by searching the path does not exceed the maximum time delay set in the position.
The "bandwidth" requirement is correspondingly translated into a "bandwidth policy" parameter in the network configuration parameter column. The bandwidth policy corresponds to CIR configuration and PIR configuration parameters.
The service priority requirement is correspondingly converted into a protection recovery strategy in a network configuration parameter column, and different network configuration parameter values are correspondingly distributed according to different service priorities. Wherein the "protection recovery policy" corresponds to the protection of the network side and the rerouting related configuration parameters.
S13: based on the network side end-to-end service configuration parameters, the network side end-to-end service configuration parameters are converted into intra-domain service configuration parameters of each single-domain management and control function according to a split or direct mapping method.
Based on network topology, each domain boundary is obtained by analysis. Meanwhile, based on network side end-to-end service configuration parameters, the intra-domain service configuration parameters of each single-domain management and control function are obtained according to a split or direct mapping method, and the mapping relation between the network side end-to-end service configuration parameters and the single-domain intra-domain service configuration parameters is described in table 2:
table 2 mapping relationship between network side end-to-end service configuration parameters and service configuration parameters in single domain
S14: and issuing a pre-calculation request of the intra-domain service to each single-domain management and control system based on the intra-domain service configuration parameters, and creating the service according to the pre-calculation result. The method comprises the following steps:
when the end-to-end service is a cross-network service, firstly analyzing and judging whether a single-domain management and control system of a service layer exists a service layer path which meets the creation of the client-side management and control system service:
s141, if the service exists, directly issuing a pre-calculation request of the intra-domain service to the client management and control system, selecting an optimal route meeting the condition according to a pre-calculation return result, and issuing intra-domain service creation according to the route.
S142, if the service layer path pre-calculation request is not existed, the service layer single domain management and control function is issued, an optimal route meeting the condition is selected according to the pre-calculation return result, the service layer path creation request in the domain is issued according to the return result, and then the service creation is completed by referring to the step S141.
In the first embodiment, as shown in fig. 3, a service provisioning method based on user requirements and network configuration mapping rules is described by taking end-to-end service creation under the co-control of an IP network and an optical network as an example, and in this embodiment, it is assumed that no tunnel and no IP link are available, and the specific implementation method is as follows:
1) The application layer user invokes an end-to-end service opening interface, and issues an L2VPN ELINE service creation request, wherein the request carries the following parameter requirements:
■ Service source information = network element a, ethernet user side interface 1;
■ Service sink information = network element Z, ethernet user side interface 2;
■ Traffic type = ELINE;
■ User requirements:
2) The collaboration layer converts the user requirements into network side end-to-end service configuration parameters according to the user requirements and network configuration parameter mapping rules, and the method specifically comprises the following steps:
■ The reliability of 99.99% is converted into the following network side end-to-end service configuration parameters:
< protection type = 1+1;
protection hierarchy = tunnel;
protection attribute = wait for recovery time 1 minute, protection hold-off time takes default value 60ms; > A process for preparing the same
< protection type = 1+1;
protection hierarchy = optical path data unit (Optical Channel Data Unit-k, ODUk);
protection attribute = wait for recovery time 1 minute, protection hold-off takes a default value of 10ms; > A process for preparing the same
Route constraint policy = primary and backup path avoidance co-optical cable, primary and backup path avoidance co-route;
■ The bandwidth 500M is converted into the following network side end-to-end service configuration parameters:
service bandwidth cir=500m, pir=physical port rate value of the two-layer virtual private network (Layer Two Virtual Private Networks, L2 VPN);
the residual bandwidth of a service layer tunnel of the L2VPN service is more than or equal to 500M;
the residual bandwidth of the IP link is more than or equal to 500M;
■ The delay 9ms is converted into the following network side end-to-end service configuration parameters:
the delay of the L2VPN service is less than or equal to 9ms.
3) The cooperative layer analyzes and obtains boundary information of each domain based on topology information; meanwhile, based on the network side end-to-end service configuration parameters obtained in the step 2), the intra-domain service configuration parameters of each single domain are obtained according to a split or direct mapping mode, and the method specifically comprises the following steps:
4) The cooperative layer acquires tunnel information from each single-domain IP network management and control function.
5) The single domain IP network management and control function returns tunnel information in the respective domain to the coordination layer.
6) And (3) the coordination layer completes cross-domain end-to-end tunnel splicing according to the acquired tunnel information, and analyzes whether a tunnel meeting the condition exists, namely whether the tunnel meeting the requirement in the step (2) exists or not (comprising whether the optical network service associated with the tunnel meets the requirement in the step (2)).
7) And (3) according to the conclusion obtained by analysis in the step 6), if no tunnel is available, the cooperative layer analyzes whether the existing and qualified IP link exists in the layer.
8) And if the IP link is not available, the cooperative layer issues a service precalculation request of a single domain optical network client side to the single domain optical network management and control function according to the optical network boundary obtained by analysis and the service configuration parameters in the single domain optical network domain obtained by analysis in the step 3).
9) Each single-domain optical layer control function completes the intra-domain pre-calculation.
10 Each single domain optical layer management function returns the service pre-calculation result in each domain to the cooperative layer.
11 The cooperative layer splices to obtain the optimal service path and parameters of the optical network client side meeting the conditions according to the pre-calculated result of each received single-domain optical network management and control function.
12 The cooperative layer creates a request for the service creation of the luminous network client side under each single-domain optical network management and control function according to the service path and the parameters of the optical network client side obtained in the step 11).
13 Each single domain optical layer management function returns the service creation result in each domain to the cooperative layer.
14 And (3) splicing and generating end-to-end optical network client side service by the cooperative layer according to the returned result of the step 13), and generating an IP link in a correlation way.
15 The collaboration layer obtains the range of available resources (e.g., tunnel labels, etc.) for each domain from each single domain IP layer management and control function.
16 Each single domain IP layer management and control function returns the available resource information of the respective domain to the cooperative layer.
17 The cooperative layer issues a pre-calculation request of the intra-domain VPN to each single-domain IP network management and control function according to the boundary information of each single-domain IP network obtained by the analysis in the step 3) and the intra-domain service configuration parameters, the IP link obtained in the step 14) and the available resources obtained in the step 16).
18 Each single domain IP network management and control function completes the intra-domain tunnel pre-computation.
19 Each single domain IP network management and control function returns the pre-calculation result of the tunnel in each domain to the cooperative layer.
20 The cooperative layer splices the received intra-domain tunnel pre-calculation results of each single-domain IP network management and control function to obtain the optimal end-to-end tunnel path and parameters meeting the conditions.
21 The cooperative layer issues a service creation request (the request parameters comprise tunnel paths and parameter constraints) to each domain according to the boundary information of each single-domain IP network and the intra-domain service configuration parameters obtained by the analysis in the step 3), the available resources obtained in the step 16) and the available tunnel paths and parameters obtained in the step 20).
22 Each single domain IP network management and control function completes the creation of intra-domain tunnels and service creation.
23 Each single domain IP network management and control function coordination layer returns the tunnel creation result and the service creation result in each domain.
24 The cooperative layer splices and generates an end-to-end tunnel and an end-to-end service according to the received result of the management and control function of each single-domain IP network.
25 The collaboration layer returns the end-to-end service creation results to the application layer.
In particular implementations, it may also be implemented in a manner that is not directly created by the pre-calculation.
In the second embodiment, as shown in fig. 4. The service opening method based on the user requirement and the network configuration mapping rule is described by taking the end-to-end service creation under the cooperative control of the IP network and the optical network as an example, and the embodiment has available tunnels meeting the requirements and the related optical network side service also meets the requirements:
1) The application layer user invokes an end-to-end service opening interface, and issues an L2VPN ELINE service creation request, wherein the request carries the following parameter requirements:
service source information = network element a, ethernet user side interface 1;
service sink information = network element Z, ethernet user side interface 2;
service type = E-Line;
user requirements:
business reliability = 99.999%;
bandwidth=500M;
the time delay is less than or equal to 9ms.
2) The collaboration layer converts the user requirements into network side end-to-end service configuration parameters according to the user requirements and network configuration parameter mapping rules, and the method specifically comprises the following steps:
■ The reliability of 99.99% is converted into the following network side end-to-end service configuration parameters:
< protection type = 1+1;
protection hierarchy = tunnel;
protection attribute = wait for recovery time 1 minute, protection hold-off time takes default value 60ms; > A process for preparing the same
< protection type = 1+1;
protection hierarchy=oduk;
protection attribute = wait for recovery time 1 minute, protection hold-off time 10ms; > A process for preparing the same
Route constraint policy = primary and backup path avoidance co-optical cable, primary and backup path avoidance co-route;
■ The bandwidth 500M is converted into the following network side end-to-end service configuration parameters:
l2VPN traffic bandwidth cir=500m, pir=physical port rate value;
the residual bandwidth of a service layer tunnel of the L2VPN service is more than or equal to 500M;
the residual bandwidth of the IP link is more than or equal to 500M;
ODUk channel in associated optical network is more than or equal to 500M
■ The delay 9ms is converted into the following network side end-to-end service configuration parameters:
the delay of the L2VPN service is less than or equal to 9ms.
3) The collaborative layer analyzes and obtains boundary information of each domain based on topology information; meanwhile, based on the network side end-to-end service configuration parameters obtained in the step 2), the service configuration parameters of each single domain are obtained according to a split or direct mapping mode, and the method specifically comprises the following steps:
4) The cooperative layer acquires tunnel information from each single-domain IP network management and control function.
5) The single domain IP network management and control function returns tunnel information in the respective domain to the coordination layer.
6) And (3) the cooperative layer completes cross-domain end-to-end tunnel splicing according to the acquired tunnel information, and analyzes whether a tunnel meeting the condition exists (the optical layer service associated with the tunnel meets the requirement of the step (2)).
7) And if the available tunnels exist and the associated optical network service meets the requirements, the cooperative layer issues a service creation request to each single-domain IP network management and control function according to the domain configuration parameters and the domain boundaries obtained by the analysis in the step 3).
8) And each single-domain IP network management and control function completes the creation of the intra-domain service.
9) And the single-domain IP network management and control functions return the service creation results in the respective domains to the cooperative layer.
10 The cooperative layer splices and generates end-to-end service according to the received service creation result in each single-domain IP network management and control functional domain.
11 The collaboration layer returns the end-to-end service creation results to the application layer.
The third embodiment further provides a service opening device based on the user requirement and the network configuration mapping rule, which comprises at least one processor and a memory, wherein the at least one processor and the memory are connected through a data bus, the memory stores instructions executed by the at least one processor, and the instructions are used for completing the service opening method based on the user requirement and the network configuration mapping rule after being executed by the processor.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A service opening method based on user demand and network configuration mapping rules is characterized by comprising the following steps:
s11: issuing an end-to-end service creation request facing to user demands based on a user-facing end-to-end service configuration interface;
s12: based on the mapping rule of the user demand and the network configuration parameter, converting the user demand into a corresponding network side end-to-end service configuration parameter;
s13: based on the network side end-to-end service configuration parameters, converting the network side end-to-end service configuration parameters into intra-domain service configuration parameters of each single-domain management and control function according to a splitting or direct mapping method;
s14: and issuing a pre-calculation request of the intra-domain service to each single-domain management and control system based on the intra-domain service configuration parameters, and creating the service according to the pre-calculation result.
2. The service provisioning method according to claim 1, wherein the network side end-to-end service provisioning parameters in step S12 include:
protection recovery strategy: configuring protection, including protection type, protection hierarchy and protection attribute; or configuring reroutes including reroute enabling and rerouting hierarchies;
routing constraint policy: the same route or maximum time delay is avoided by setting resources and not by restricting the resource setting and sharing the risk link group;
bandwidth policy: CIR configuration and PIR configuration.
3. The service provisioning method according to claim 1 or 2, wherein the mapping rule of the user requirement and the network configuration parameter in step S12 specifically includes:
the 'reliability' requirement is correspondingly converted into a 'protection recovery strategy' and a 'routing constraint strategy' in a network configuration parameter column, and different network configuration parameter values are correspondingly distributed according to different requirements of users on reliability indexes; the protection recovery strategy corresponds to the protection of the network side and the configuration parameters related to rerouting; the routing constraint strategy corresponds to the routing related parameter constraint of the network;
the 'time delay' requirement is correspondingly converted into a 'routing constraint strategy-maximum time delay' parameter in a network configuration parameter column;
the bandwidth requirement is correspondingly converted into a bandwidth strategy parameter in a network configuration parameter column;
the service priority requirement is correspondingly converted into a protection recovery strategy in a network configuration parameter column, and different network configuration parameter values are correspondingly distributed according to different service priorities, wherein the protection recovery strategy corresponds to the protection and rerouting related configuration parameters of the network side.
4. The service provisioning method according to claim 1 or 2, wherein the mapping relationship between the network side end-to-end service configuration parameter and the service configuration parameter in the single domain in step S13 is specifically:
for the protection type, the protection level and the protection attribute, each single domain adopts a direct mapping method, namely the protection type, the protection level and the protection attribute in the single domain are respectively equal to the protection type, the protection level and the protection attribute in the network side end-to-end service configuration parameters;
for rerouting enabling and rerouting levels, each single domain adopts a direct mapping method, namely the rerouting enabling and rerouting levels in the single domain are respectively equal to the rerouting enabling and rerouting levels in the network side end-to-end service configuration parameters;
for maximum time delay, if splitting is adopted, the time delay value of the network side end-to-end service configuration is distributed to the time delay parameters of the service configuration in each single domain according to preset weights; if the direct mapping is adopted, the time delay parameter of the service configuration in each single domain is less than or equal to the time delay value of the network side end-to-end service configuration;
for the necessary or unnecessary resource setting, adopting direct mapping, namely the necessary/unnecessary resource setting in the single domain is equal to the necessary/unnecessary resource setting in the network side end-to-end service configuration parameters;
for SRLG constraint, adopting direct mapping, namely setting the SRLG constraint equal to the SRLG constraint in the network side-to-end service configuration parameter in the single domain;
for avoiding the same route, adopting direct mapping, namely setting the constraint of avoiding the same route for the service configuration in the single domain;
for the service CIR configuration or PIR configuration, adopting direct mapping, namely the service CIR configuration or PIR configuration in a single domain is equal to the CIR configuration or PIR configuration of the network side end-to-end service; the service layer path of the service in the single domain needs to meet CIR configuration of the network side end-to-end service with the residual bandwidth of the service layer path not less than that of the network side end-to-end service with the PIR of the service layer path not less than that of the network side end-to-end service.
5. The service provisioning method according to claim 1 or 2, wherein the step S14 specifically includes:
when the end-to-end service is a cross-network service, firstly analyzing and judging whether a single-domain management and control system of a service layer exists a service layer path which meets the creation of the client-side management and control system service:
s141, if the service exists, directly issuing a pre-calculation request of the intra-domain service to the client management and control system, selecting an optimal route meeting the condition according to a pre-calculation return result, and issuing intra-domain service creation according to the route;
s142, if the service layer path pre-calculation request is not existed, the service layer single domain management and control function is issued, an optimal route meeting the condition is selected according to the pre-calculation return result, the service layer path creation request in the domain is issued according to the return result, and then the service creation is completed by referring to the step S141.
6. The service provisioning method according to claim 1 or 2, wherein the request parameters of the configuration interface facing the user in step S11 include:
service source information; information of a service destination; a service type; user requirements: including reliability, latency, bandwidth, or traffic priority, the request parameters include one or more parameters in the user's needs.
7. The service provisioning method according to claim 1 or 2, wherein the service type includes: E-LINE, E-LAN, E-TREE, CES, L3VPN, said traffic priority comprising: high, medium, low.
8. The service provisioning method based on the mapping rule of the user requirement and the network configuration as claimed in claim 2, wherein the protection recovery policy specifically comprises:
protection type: 1+1 protection, 1:1, protection and no protection;
protection layer: configuring a hierarchy of protected objects;
protection attributes: waiting for a recovery time and a hold-off time;
rerouting enables: enable, disable;
rerouting hierarchy: the hierarchy of rerouted objects is configured.
9. The service provisioning method according to claim 2, wherein the routing constraint policy is specifically:
the following steps are set: nodes, node lower ports and designated paths;
without resource setting: nodes, node lower ports and designated paths;
shared risk link group constraints: avoid the same optical cable, avoid the link of the same risk;
avoiding the same route;
maximum delay.
10. A service opening device based on user demand and network configuration mapping rules is characterized in that:
the service provisioning method according to any of claims 1-9, comprising at least one processor and a memory, said at least one processor and memory being connected by a data bus, said memory storing instructions for execution by said at least one processor, said instructions, when executed by said processor, for performing a service provisioning method according to user requirements and network configuration mapping rules.
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