CN109068197B - Method for testing VC12 particle scheduling capacity of electric power ASON system - Google Patents
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Abstract
The invention discloses a method for testing VC12 particle scheduling capacity of an electric power ASON system, which comprises three steps of ASON networking configuration, strategy configuration and strategy verification; the ASON networking environment is built by 4 devices and is connected with a ring topology through a 2.5G/10G line interface; the strategy configuration comprises a background capacity VC12 virtual path configuration and a dynamic rerouting VC12 virtual path configuration; the strategy verification comprises VC12 scheduling particle service monitoring and network management system service state monitoring. The invention judges the scheduling particles and the related capacity thereof by configuring the static background capacity and the strategy of dynamic verification and verifying whether a small amount of dynamic rerouting services are rerouted or interrupted according to the configuration strategy, and the required instrument resources are few; the method can reduce the requirements of the dispatching particles of the power ASON system and the capacity test thereof on the resources of the test instrument, has concise test steps and effectively improves the test efficiency.
Description
Technical Field
The invention relates to a method for testing VC12 particle scheduling capacity of an electric power ASON system, and belongs to the technical field of optical transmission communication.
Background
The ASON is an optical network that directly provides services on an optical layer as needed, and has high flexibility and good expandability. SDH equipment is used as a transmission carrier of ASON, a linear or ring networking structure is provided, the introduction of an ASON control plane enables transmission, exchange and data networks to be combined together, and the real routing setting, end-to-end service scheduling and network automatic recovery are realized. With the development of the protection technology of the power system, the service requirement range and the area protected by the power system are gradually expanded, and a communication network which is safe, reliable and convenient to deploy needs to be supported.
The SDH equipment is widely deployed in a power transmission network, can be used as a basic communication network for power system wide area protection and distribution network protection information interactive transmission, is a dispatching particle based on VC4 for an SDH-based ASON system, is mainly accessed to a substation terminal equipment by adopting an E1 link due to certain difference between the application of the power system ASON and the application of a telecommunication system, and has special application requirements for low-order services. A mainstream domestic ASON system equipment manufacturer performs application development based on a VC12 virtual channel according to a special application of an electric power system, there may be a virtual access service design that transmits VC12 particles by using a VC4 virtual channel, and an actual scheduling particle is VC4, which has a low resource utilization rate, and compared with a design mode that can be based on VC12 scheduling, a same service demand scenario requires higher equipment configuration. At present, there is no standard regulation for testing the scheduling capacity of the VC12 particles, and if a full-path test is performed according to the capacity configuration, a large amount of test instrument resources need to be consumed, and the test period is long.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a method for testing the dispatching capacity of VC12 particles of an electric power ASON system, the dispatching particles of the ASON system can be accurately tested based on the service dispatching design of VC12 particles, the dispatching capacity of the ASON system based on VC12 particles can be actually tested only by verifying three pieces of service data in a static configuration and dynamic verification mode, the testing process is simple, and the requirements on the resource capacity and the performance of a testing instrument are not high.
In order to solve the technical problem, the invention provides a method for testing the dispatching capacity of VC12 granules in an electric power ASON system, which comprises the following steps:
1) the method comprises the following steps of establishing a physical topological environment for ASON system testing, specifically: adopt 4 SDH based ASON node equipment to build, connect ring topology through 2.5G/10G line interface, 4 equipment are respectively: node A, B, C, D, where node a is the master node, i.e. the node under test device, and node B, C, D is the auxiliary node under test; the tested node equipment is provided with an E1 service interface and an STM-1 service interface; the number of the interfaces configured by the nodes A and B should meet the configuration requirement of the measured node equipment VC12 particle scheduling capacity, and the nodes C and D are connected with at least one link to adjacent nodes to form a ring topology; all nodes start ASON control plane functions;
2) selecting 1 VC4 path in the A-1 interface of the node A, configuring two VC4 paths selected from the A-1 interface of the node A by the ASON system to schedule the dynamic rerouting services a and B of particles through the VC12 from the node B to the node D, occupying the 1 st and 63 th time slots of the VC4, and configuring a VC12 virtual path in the rest 2-62 time slots to be an occupied state as background capacity;
3) configuring landing E1 interfaces of services a and b on the nodes A and D, respectively connecting the node A to two E1 testers, enabling the node D to be in a hard loopback mode corresponding to the E1 interface, configuring an E1 tester, and checking the connectivity of the services;
4) selecting 1 VC4 path in the A-2 interface of the node A, configuring a VC4 path selected from the A-2 interface of the node A by an ASON system to schedule a dynamic rerouting service C of granules through the VC12 from the node C to the node D, occupying 62 time slots of the VC4, namely time slots 1-4 and time slots 6-63 respectively, as background capacity, reserving a virtual path of which the 5 th time slot is VC12 scheduling granules, and only remaining the reserved VC12 scheduling granule virtual path between the node A and the node C;
5) configuring a ground STM-1 interface of a service c on a node A and a node D, connecting the node A to an SDH tester, carrying out hard loopback on the corresponding STM-1 interface of the node D, configuring the SDH tester, and checking the connectivity of the service;
6) except the configured and reserved VC12 scheduling particle resources on the node A, all virtual paths of any scheduling particles in the capacity are configured to be in an occupied state and used as static background capacity to ensure that only one reserved VC12 scheduling particle virtual path resource is left between the node A and the node C and no virtual path resource of any available particle exists between the node A and the node B;
7) the laser of the interface A-1 of the node A is closed, so that the interface A-1 is in a fault/alarm state;
8) inquiring the path conditions and the service states of the services a, b and c on the node A through the network management service of the ASON system, determining whether to finish the test according to the service inquiry result, and finishing the test if the test fails; if the test is successful, the next step is carried out;
9) checking the service connectivity condition of the two E1 testers, determining whether to finish the test according to the service state, and finishing the test if the test fails; if the test is successful, the next step is carried out;
10) checking the service connectivity condition of the SDH tester, determining whether to finish the test according to the service state, and if the test is successful, switching to the next step; otherwise, the test fails, and the test is finished;
11) and 8), 9) and 10), the results of which are in accordance with due states and requirements, the test is successful, the test is finished, the dispatching particles of the ASON equipment to be tested are VC12, the capacity is equal to the sum of the configured dynamic verification capacity and the static background capacity, namely the VC12 dispatching particle declared capacity of the equipment to be tested.
In the step 3), the service connectivity means that the ASON system should ensure normal sending and receiving of the background capacity service after debugging, and the two E1 testers perform continuous service testing without error codes.
In the step 5), the service connectivity means that the ASON system should ensure normal transmission and reception of the background capacity service after debugging, the SDH tester monitors all time slots of the STM-1, and the time slots 1 to 4 and 6 to 63 are tested for continuous services without error codes.
In the foregoing step 8), the determination criteria are: and if the rerouting of the service a and the service b is successful or fails, the testing fails.
In the foregoing step 9), the determination criteria are: the service monitored by 1E 1 tester is recovered after short interruption, the recovery time is within 2s, the service monitored by the other E1 tester is interrupted and cannot be recovered, and the test fails if the result is not the result.
In the foregoing step 10), the determination criteria are: the service c of 62 time slots configured by the A-2 interface link of the node A is in a normal state, no error is generated, the reserved 1 time slot resource is occupied by the service a or b, the service is normal, the test is successful, and if the result is not the result, the test fails.
The invention has the beneficial effects that:
the invention fills the vacancy of the current method for testing dispatching particles of the electric power ASON system and testing the dispatching capacity of VC12 particles, judges the dispatching particle and the dispatching capacity of VC12 particles by configuring the strategies of static background capacity and dynamic verification and verifying whether a small amount of dynamic rerouting services are rerouted or interrupted according to the configuration strategies, and can complete the test under the support of a small amount of instrument resources.
The method can reduce the requirements of the dispatching particles of the power ASON system and the capacity test thereof on the resources of the test instrument, has concise test steps and effectively improves the test efficiency.
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FIG. 1 is a schematic diagram of the logical functional structure of the test of the present invention;
FIG. 2 is a schematic diagram of configuration policy construction according to the present invention;
fig. 3 is a flow chart of the method of the present invention.
Detailed Description
The invention is further described below. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention provides a testing method for VC12 particle scheduling capacity of an electric power ASON system, wherein the ASON system is an SDH-based ASON system, and the method specifically comprises three parts of an ASON networking environment, a configuration strategy and a strategy verification, as shown in figure 1. In particular, the method comprises the following steps of,
the ASON networking environment is built by 4 SDH-based ASON node devices (node A, B, C, D), the ASON node devices are connected into a ring topology through 2.5G/10G line interfaces to provide a testing basic physical environment, the node A is a main testing node, and the number of the connected line interfaces meets the configuration requirement of the maximum VC12 particle scheduling capacity of the tested node.
The configuration strategy configures a static background capacity VC12 particle virtual channel and a dynamic verification capacity VC12 particle virtual channel according to a certain rule in the established ASON networking topology, configures a corresponding testing instrument to monitor the connectivity of services, and provides a performance testing environment.
And the strategy verification ensures that the service is rerouted or interrupted according to a set rule by interrupting the dynamic rerouting service path or shutting down a service interface, and the dispatching capacity of the tested ASON equipment VC12 particles is obtained by analyzing and judging the minimum dispatching particles according to the monitoring result of the testing instrument and the recording result of the network management event of the ASON system.
As shown in fig. 2, which is a scene diagram constructed by the configuration policy of the present invention, an ASON networking environment is composed of 1 main test node device a and 3 auxiliary test node devices B, C, D, the tested node device a has an E1 service interface and an STM-1 service interface, the interface configured by the node device A, B should meet the configuration requirement of the VC12 particle scheduling capacity of the tested node device, and as shown in fig. 2, the main test node device a configures n interfaces, which are a-1 to a-n, respectively. Node device C, D connects at least one link to an adjacent node device to form a ring topology, all devices enable ASON control plane functionality to provide a test base physical environment.
The configuration strategy is applied to the tested node equipment, other auxiliary node equipment is cooperatively arranged, and a static background capacity VC12 virtual channel and a dynamic verification capacity VC12 virtual channel of the tested equipment are configured according to rules, so that a performance test environment is provided.
And a configuration strategy dynamically verifies the configuration of a capacity VC12 virtual path, 1 VC4 path is respectively selected at an A-1 interface and an A-2 interface according to the VC12 scheduling particle capacity of the tested node equipment A, and an E1 service and an STM-1 service are respectively configured.
Configuration policy dynamic verification configuration of the service: two dynamic rerouting services a and B of scheduling particles of VC12 from a main test node device A to an auxiliary test node device D through an auxiliary test node device B are configured in a VC4 path selected by an A-1 interface of the main test node device A, occupy the 1 st and 63 th time slots of the VC4, and the rest 2-62 time slots configure a VC12 virtual path as an occupied state as background capacity.
The dynamic verification method of the service on the A-1 interface comprises the following steps: the method comprises the steps that landing E1 interfaces of services a and b are configured on a main test node device A and an auxiliary test node device D, the main test node device A is connected to two E1 testers respectively, the auxiliary test node device D is in hard loopback corresponding to an E1 interface, an E1 tester is configured, the connectivity of the services is checked, and normal sending and receiving of background capacity services are guaranteed.
Configuration policy dynamic verification configuration of the service: a VC12 scheduling granule dynamic rerouting service C from a main test node device A to an auxiliary test node device D through an auxiliary test node device C is configured in a VC4 path selected by an A-2 interface of the main test node device A, 62 time slots (time slots 1-4 and 6-63) of the VC4 are occupied as background capacity, 1 VC12 time slot (5 th time slot) is reserved, a virtual path of VC12 granules is configured, and only 1 reserved VC12 virtual path is ensured to be left between the node A and the node C without other available routes.
The dynamic verification method of the service on the A-2 interface comprises the following steps: and configuring a ground STM-1 interface of a service c on a node A and a node D, connecting the node A to an SDH tester, carrying out hard loopback on the corresponding STM-1 interface of the node D, configuring an error code test function of a low-order multichannel of the STM-1 service interface of the SDH tester, checking the connectivity of the service, and ensuring the normal sending and receiving of the background capacity service.
The static background capacity is configured as: except the configured dynamic verification service and the reserved VC12 granule virtual paths, the node A declares that all other VC12 virtual paths in the VC12 granule scheduling capacity are configured to be in an occupied state, and the virtual paths of any other configurable granules are configured to be in an occupied state.
The strategy verification process comprises the following steps: and judging scheduling particles and scheduling capacity of the ASON system according to a service test result of the tester and a service query result of the network management of the ASON system by interrupting the service on the A-1 interface of the node equipment A, observing the data receiving and sending condition of the configured service and the routing scheduling condition on the network management.
Referring to fig. 3, the method for testing the dispatching capacity of the power ASON system VC12 granules of the present invention includes the following steps:
a) establishing a physical topology environment for ASON system test, adopting 4 equipment to establish (node A, B, C, D), connecting a ring topology through 2.5G/10G line interfaces, wherein the number of the line interfaces connected with the node A is required to meet the configuration requirement of the maximum VC12 particle scheduling capacity;
b) selecting 1 VC4 path in the A-1 interface of the node A, configuring two VC4 paths selected from the A-1 interface of the node A by the ASON system to schedule the dynamic rerouting services a and B of particles through the VC12 from the node B to the node D, occupying the 1 st and 63 th time slots of the VC4, and configuring a VC12 virtual path in the rest 2-62 time slots to be an occupied state as background capacity;
c) configuring landing E1 interfaces of services a and b on the nodes A and D, respectively connecting the node A to two E1 testers, carrying out hard loopback on the E1 interface corresponding to the node D, configuring the E1 testers, checking the connectivity of the services, and ensuring that the two E1 testers continuously test the services without error codes;
d) selecting 1 VC4 path in the A-2 interface of the node A, configuring a dynamic rerouting service C of a scheduling granule from a VC4 path selected by the A-2 of the node A to a VC12 of the node D through the node C by an ASON system, occupying 62 time slots (time slots 1-4 and 6-63) of the VC4 as background capacity, reserving 1 virtual path (5 th time slot) of VC12 granules, and only remaining 1 reserved VC12 virtual path between the node A and the node C without other available routes;
e) configuring a ground STM-1 interface of a service c on a node A and a node D, connecting the node A to an SDH tester, carrying out hard loopback on the corresponding STM-1 interface of the node D, configuring the SDH tester, checking the connectivity of the service, ensuring the normal sending and receiving of background capacity service by an ASON system through debugging, monitoring all time slots of the STM-1 by the SDH tester, and testing error-free codes of continuous services of the time slots 1-4 and 6-63;
f) except the configured and reserved VC12 particle scheduling resources on the node A, all virtual paths of other arbitrary scheduling particles in the capacity are configured to be in an occupied state and used as static background capacity to ensure that only one reserved VC12 particle virtual path resource is left between the node A and the node C and no virtual path resource of any available particle exists between the node A and the node B;
g) the laser of the interface A-1 of the node A is closed, so that the interface A-1 is in a fault/alarm state;
h) inquiring the path conditions and the service states of the services a, b and c on the node A through the network management service of the ASON system, and determining whether to finish the test according to the service inquiry result, wherein the judgment standard is as follows: if 1 service in the service a and the service b can be rerouted successfully, 1 service is rerouted failed, and the path of the successful rerouting is A-C-D, 1 VC12 particle virtual path reserved in an A-2 interface is occupied, if the rerouting of the service a and the service b is successful or failed, the test is failed, and the test is ended; if the test is successful, the next step is carried out;
i) checking the service connectivity condition of the two E1 testers, determining whether to finish the test according to the service state, wherein the judgment standard is as follows: wherein, the service monitored by 1E 1 tester is recovered after short interruption, the recovery time is within 2s, the service monitored by the other E1 tester is interrupted and can not be recovered, if the result is not the result, the test is failed, and the test is finished; if the test is successful, the next step is carried out;
j) checking the service connectivity condition of the SDH tester, determining whether to finish the test according to the service state, wherein the judgment standard is as follows: the service c of 62 time slots configured by the A-2 interface link of the node A is in a normal state, no error is generated, the reserved 1 time slot resource is occupied by the service a or b, the service is normal, the test is successful, and the next step is carried out; if the result is not the result, the test fails, and the test is finished;
k) and (3) the results of the steps h), i) and j) all accord with due states and requirements, the test is successful, the test is finished, the dispatching particles of the ASON equipment to be tested are VC12, the capacity is equal to the sum of the configured dynamic verification capacity and the static background capacity, namely the VC12 dispatching particle declared capacity of the ASON equipment to be tested.
The invention fills the vacancy of the current method for testing dispatching particles of the electric power ASON system and testing the dispatching capacity of VC12 particles, judges the dispatching particle and the dispatching capacity of VC12 particles by configuring the strategies of static background capacity and dynamic verification and verifying whether a small amount of dynamic rerouting services are rerouted or interrupted according to the configuration strategies, can finish the test under the support of a small amount of instrument resources, has simple testing steps and can effectively improve the testing efficiency. Through laboratory verification, the method can accurately identify the granularity of the dispatching of the power ASON system and the actual dispatching capacity of the VC12 granules, and is an effective inspection method.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A testing method for the dispatching capacity of a power ASON system VC12 particle is characterized by comprising the following steps:
1) the method comprises the following steps of establishing a physical topological environment for ASON system testing, specifically: adopt 4 SDH based ASON node equipment to build, connect ring topology through 2.5G/10G line interface, 4 equipment are respectively: node A, B, C, D, where node a is the master node, i.e. the node under test device, and node B, C, D is the auxiliary node under test; the tested node equipment is provided with an E1 service interface and an STM-1 service interface; the number of the interfaces configured by the nodes A and B should meet the configuration requirement of the measured node equipment VC12 particle scheduling capacity, and the nodes C and D are connected with at least one link to adjacent nodes to form a ring topology; all nodes start ASON control plane functions;
2) selecting 1 VC4 path in the A-1 interface of the node A, configuring two VC4 paths selected from the A-1 interface of the node A by the ASON system to schedule the dynamic rerouting services a and B of particles through the VC12 from the node B to the node D, occupying the 1 st and 63 th time slots of the VC4, and configuring a VC12 virtual path in the rest 2-62 time slots to be an occupied state as background capacity;
3) configuring landing E1 interfaces of services a and b on the nodes A and D, respectively connecting the node A to two E1 testers, enabling the node D to be in a hard loopback mode corresponding to the E1 interface, configuring an E1 tester, and checking the connectivity of the services;
4) selecting 1 VC4 path in the A-2 interface of the node A, configuring a VC4 path selected from the A-2 interface of the node A by an ASON system to schedule a dynamic rerouting service C of granules through the VC12 from the node C to the node D, occupying 62 time slots of the VC4, namely time slots 1-4 and time slots 6-63 respectively, as background capacity, reserving a virtual path of which the 5 th time slot is VC12 scheduling granules, and only remaining the reserved VC12 scheduling granule virtual path between the node A and the node C;
5) configuring a ground STM-1 interface of a service c on a node A and a node D, connecting the node A to an SDH tester, carrying out hard loopback on the corresponding STM-1 interface of the node D, configuring the SDH tester, and checking the connectivity of the service;
6) except the configured and reserved VC12 scheduling particle resources on the node A, all virtual paths of any scheduling particles in the capacity are configured to be in an occupied state and used as static background capacity to ensure that only one reserved VC12 scheduling particle virtual path resource is left between the node A and the node C and no virtual path resource of any available particle exists between the node A and the node B;
7) the laser of the interface A-1 of the node A is closed, so that the interface A-1 is in a fault/alarm state;
8) inquiring the path conditions and the service states of the services a, b and c on the node A through the network management service of the ASON system, determining whether to finish the test according to the service inquiry result, and finishing the test if the test fails; if the test is successful, the next step is carried out;
the judgment standard of the test success is as follows: if 1 service in the service a and the service b is successfully rerouted, 1 service in the service a and the service b is failed to be rerouted, and the path which is successfully rerouted is A-C-D, 1 VC12 reserved in an A-2 interface is occupied to schedule a particle virtual channel, and if the service a and the service b are successfully rerouted or fail to be rerouted, the test is failed;
9) checking the service connectivity condition of the two E1 testers, determining whether to finish the test according to the service state, and finishing the test if the test fails; if the test is successful, the next step is carried out;
the judgment standard of the test success is as follows: wherein, the service monitored by 1E 1 tester is recovered after short interruption, the recovery time is within 2s, the service monitored by another E1 tester is interrupted and can not be recovered, if the result is not the result, the test is failed;
10) checking the service connectivity condition of the SDH tester, determining whether to finish the test according to the service state, and if the test is successful, switching to the next step; otherwise, the test fails, and the test is finished;
the judgment standard of the test success is as follows: the service c of 62 time slots configured by the A-2 interface link of the node A is in a normal state, no error is generated, the reserved 1 time slot resource is occupied by the service a or b, the service is normal, the test is successful, and if the result is not the result, the test fails;
11) and 8), 9) and 10), the results of which are in accordance with due states and requirements, the test is successful, the test is finished, the dispatching particles of the ASON equipment to be tested are VC12, the capacity is equal to the sum of the configured dynamic verification capacity and the static background capacity, namely the VC12 dispatching particle declared capacity of the equipment to be tested.
2. The method as claimed in claim 1, wherein in step 3), the service connectivity is that the normal transmission and reception of the background capacity service should be ensured by the ASON system after debugging, and the two E1 testers continuously perform service test without errors.
3. The method for testing the scheduling capacity of the VC12 particles in the power ASON system of claim 1, wherein in step 5), the service connectivity means that the ASON system should ensure normal transmission and reception of the background capacity service after debugging, the SDH tester monitors all time slots of STM-1, and the time slots 1 to 4 and 6 to 63 test the continuous services without errors.
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