CN107294756B - Automatic service transition method and device - Google Patents
Automatic service transition method and device Download PDFInfo
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- CN107294756B CN107294756B CN201610227584.5A CN201610227584A CN107294756B CN 107294756 B CN107294756 B CN 107294756B CN 201610227584 A CN201610227584 A CN 201610227584A CN 107294756 B CN107294756 B CN 107294756B
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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
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
- H04L41/5054—Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
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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
- H04L41/12—Discovery or management of network topologies
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Abstract
The invention discloses a method and a device for automatically changing a service, which are used for acquiring a current service change scene selected by a user and a ground device after a network topology changes; automatically selecting the target service needing to be changed at this time from the current original path service according to the network change scene and the landing equipment; and carrying out service transition parameter configuration on each target service, selecting a target protocol required by each target service for changing the service model from the protocol pool, issuing the target protocol to the network topology equipment, issuing each configured target service to the corresponding floor equipment, and finishing the change of the service change model. The whole migration process of the service is completed. In the process, a user only needs to select a service transition scene and a landing device, and the calculation selection of the service, the configuration of parameters, the selection of the protocol and the like are automatically completed by the system, so that the time and labor consumption are greatly reduced, the service migration cost is reduced, and the service migration efficiency is improved.
Description
Technical Field
The invention relates to the field of communication, in particular to a method and a device for isolating ports of a switch.
Background
At present, after a network topology is changed, a service is also changed along with the change of the network topology, and an original service type cannot meet a service form after a new network topology is changed, so that after the service is changed, the changed service is adjusted to a new service mode, and the whole service changing process is completed. At present, after the network topology changes, the service migration is manually completed by an operator. The traffic of the existing engineering network is very huge, the service types are various, and the adjustment method of each service type is different, so that the time and labor consumption are basically difficult to meet the progress requirement of engineering network reconstruction by depending on manual single service migration and service modification at present, and the cost is greatly improved. Therefore, how to automatically complete the migration of the service is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The invention provides a method and a device for automatically transferring a service, which solve the problems that after the existing network topology is transferred, an operator needs to manually complete the transfer of the whole service, the time and labor consumption is high, and the cost is high.
In order to solve the above technical problem, the present invention provides a method for automatically migrating a service, including:
acquiring a service transition scene selected by a user according to the current network topology transition and a landing device;
selecting the target service needing to be changed at this time from the current original path service according to the network change scene and the landing equipment;
carrying out service transition parameter configuration on each target service;
selecting the target protocol required by each target service change service model from the protocol pool and sending the target protocol to the network topology equipment;
and transmitting each configured target service to corresponding network topology equipment and finishing the change of the service model.
In an embodiment of the present invention, before issuing each configured target service to the corresponding network topology device, the method further includes:
and performing bandwidth verification of the connection permission control on each configured target service, and if the verification is passed, allowing each configured target service to be issued to the corresponding floor equipment.
In an embodiment of the present invention, selecting the target service from the current original path services according to the network transition scenario and the ground device includes:
selecting all services which can be currently changed from the current original path services according to the network change scene and the landing equipment, and adding the selected services into an alternative service list;
receiving a selection instruction issued by a user, wherein the selection instruction comprises a target service list which needs to be changed at this time;
and selecting the target service from the alternative service list according to the target service list.
In an embodiment of the present invention, after completing issuing each configured target service to the corresponding network topology device and completing the change of the service model, the method further includes:
acquiring a target protection subnet which can be cleaned after the service transition;
and clearing the acquired target protection subnet.
In one embodiment of the present invention, the service transition scenario includes, but is not limited to, any one of the following scenarios:
the common dual-homing on the Ethernet bridge node is changed into dual-node interconnection dual-homing;
the time division multiplexing is not protected and is changed into double-node interconnection and double-homing;
the time division multiplexing multi-segment pseudo wire closed protection is changed into dual-node interconnection dual homing.
In an embodiment of the present invention, when the service transition scenario is that a common dual-homing on an ethernet bridge node is changed to a dual-node interconnect dual-homing, performing service transition parameter configuration on each target service includes:
for the unchanged target service source node equipment, modifying the automatic protection switching protocol of the protection group, and if the automatic protection switching protocol is in pause, then restoring;
and for the target service working ground point equipment and the target service protection ground point equipment, a double-node interconnection pseudo wire and pseudo wire management entity group is newly added, and a double-node interconnection pseudo wire protection group is newly added.
In an embodiment of the present invention, when the service transition scenario is time division multiplexing unprotected dual-node interconnect dual-homing, performing service transition parameter configuration on each target service includes:
for the target service source node equipment, a pseudo wire and a management entity group of the pseudo wire are newly added or bidirectional forwarding detection is carried out; if the working pseudo wire is not configured with a management entity group or bidirectional forwarding detection, the bidirectional forwarding detection is added; and adding a pseudo wire protection group;
for target service working ground point equipment, adding a double-node interconnection pseudo wire and a pseudo wire management entity group, and adding a double-node interconnection pseudo wire protection group;
for the target service protection ground point device, a new management entity group for protecting the pseudo wires and the bidirectional forwarding detection, a new management entity group for the dual-node interconnection pseudo wires and the pseudo wires, and a new dual-node interconnection pseudo wire protection group are added.
In an embodiment of the present invention, when the service transition scenario is a time division multiplexing multi-segment pseudo wire closed protection-to-dual-node interconnection dual-homing, performing service transition parameter configuration on each target service includes:
for the target service source node equipment, deleting the bidirectional forwarding detection on the protected multi-segment pseudo wire, and newly adding the bidirectional forwarding detection on the protected multi-segment pseudo wire;
for the target service working ground point equipment, deleting a closed protection group, deleting a protection pseudo wire and a management entity group/bidirectional forwarding detection, newly adding a dual-node interconnection pseudo wire, and newly adding a dual-node interconnection pseudo wire protection group;
for the target service protection of the floor point device, newly adding a protection pseudo wire and a management entity group or bidirectional forwarding detection, newly adding a double-node interconnection pseudo wire protection group, and processing the last SPE in the direction of the source node device-the floor point device: the pseudowire's next hop IP and VCID are modified.
In an embodiment of the present invention, after obtaining the floor device selected by the user, before selecting the target service that needs to be migrated, the method further includes:
and judging whether the floor equipment selected by the user supports dual-node interconnection protection, and if not, prompting the user to reselect.
In an embodiment of the present invention, when the service transition scenario is time division multiplexing unprotected dual-node interconnection dual-homing, after obtaining the floor equipment selected by the user, before selecting the target service to be transitioned, the method further includes obtaining a gateway IP selected by the user;
and/or when the service transition scene is time division multiplexing unprotected-to-double-node interconnection dual-homing and time division multiplexing multi-segment pseudo wire closed type protected-to-double-node interconnection dual-homing, after selecting the target service to be transitioned, the method further comprises the step of excluding the services of the equipment with the source node endpoint and the equipment with the floor point endpoint from the target service.
In one embodiment of the invention, the target protocol comprises at least one of an OAM protocol, a QOS protocol, and a TNP protocol.
In order to solve the above problem, the present invention further provides an automatic service transition device, including:
the transition information acquisition module is used for acquiring a service transition scene selected by a user according to the current network topology transition and the landing equipment;
the service selection module is used for selecting the target service needing to be changed at this time from the current original path service according to the network change scene and the landing equipment;
the parameter configuration module is used for carrying out service transition parameter configuration on each target service;
the protocol selection module is used for selecting a target protocol required by each target service change service model from the protocol pool and sending the target protocol to the network topology equipment;
and the transition processing module is used for issuing each configured target service to the corresponding network topology equipment and finishing the change of the service model.
In an embodiment of the present invention, the system further includes a verification module, configured to perform bandwidth verification for connection admission control on each configured target service before the transition processing module issues each configured target service to the corresponding floor device network topology device, and if the verification is passed, each configured target service is allowed to be issued to the corresponding floor device.
In an embodiment of the present invention, the method further comprises:
the target subnet acquisition module is used for acquiring a target protection subnet which can be cleaned after the service transition after the transition processing module issues each configured target service to the corresponding network topology equipment and completes the change of the service model;
and the subnet cleaning module is used for cleaning the obtained target protection subnet.
In one embodiment of the present invention, the service transition scenario includes, but is not limited to, any one of the following scenarios:
the common dual-homing on the Ethernet bridge node is changed into dual-node interconnection dual-homing;
the time division multiplexing is not protected and is changed into double-node interconnection and double-homing;
the time division multiplexing multi-segment pseudo wire closed protection is changed into dual-node interconnection dual homing.
The invention has the beneficial effects that:
the invention provides a method and a device for automatically changing a service, which are used for acquiring a current service change scene selected by a user and landing equipment after a network topology changes; automatically selecting the target service needing to be changed at this time from the current original path service according to the network change scene and the landing equipment; and carrying out service transition parameter configuration on each target service, selecting a target protocol required by each target service for changing the service model from the protocol pool, issuing the target protocol to the network topology equipment, issuing each configured target service to the corresponding floor equipment, and finishing the change of the service model. The whole migration process of the service is completed. In the process, a user only needs to select a service transition scene and a landing device, and the calculation selection of the service, the configuration of parameters, the selection of the protocol and the like are automatically completed by the system, so that the time and labor consumption are greatly reduced, the service migration cost is reduced, and the service migration efficiency is improved.
Drawings
Fig. 1 is a schematic flow chart of a service automatic transition method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a target selecting service flow according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a clear redundancy protection subnet provided in the first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a service automatic transition device according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second service automatic transition device according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a service automatic transition device according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a service automatic transition device according to a second embodiment of the present invention;
fig. 8 is a schematic flow chart of a service automatic transition method according to a third embodiment of the present invention;
fig. 9 is a schematic diagram of a network topology change according to a third embodiment of the present invention;
fig. 10 is a schematic diagram of the entire transition process of the TDM unprotected-DNI dual homing scenario provided by the third embodiment of the present invention.
Detailed Description
After the network topology changes, the invention can directly obtain the current service change scene and the landing equipment selected by the user, and accordingly selects the target service which needs to be changed at this time from the current original path service, completes the service change parameter configuration and the screening and issuing of the corresponding target protocol, and then issues each configured target service to the corresponding landing equipment and completes the change of the service model. In the process, the calculation selection of the service to be migrated, the configuration of the parameters, the selection of the protocol and the like are automatically completed by the system, so that the time and labor consumption are greatly reduced, the service migration cost is reduced, and the service migration efficiency is improved. The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the method for automatically transitioning a service provided in this embodiment includes:
s101: acquiring a service transition scene selected by a user according to the current network topology transition and a landing device;
s102: selecting a target service which needs to be changed at this time from the current original path service according to a network change scene designated by a user and the landing equipment;
s103: carrying out service transition parameter configuration on each target service;
s104: and selecting a target protocol required by each target service change service model from the protocol pool and sending the target protocol to the network topology equipment. The target protocol screened in the step includes but is not limited to at least one of OAM protocol, QOS protocol and TNP protocol;
s105: and transmitting each configured target service to corresponding network topology equipment and finishing the change of the service model.
In the above S101, the user may specifically designate a service transition scenario according to the device types before and after the transition; for example, the service transition scenario includes, but is not limited to, any of the following scenarios:
the common Dual homing on the Ethernet bridge Node is changed into Dual Node Interconnect (DNI) Dual homing;
time Division Multiplexing (TDM) unprotected Dual Node Interconnect (DNI) dual homing;
time Division Multiplexing (TDM) multi-segment pseudowire closed protection changes Dual Node Interconnect (DNI) dual homing.
The user selects the service transition scenario to define the rate, the protection type and the service type.
In this embodiment, when the floor device is selected, the system may automatically filter the device types of the network elements of the entire network, and provide a new device type that the user needs to select. Network element systems other than this device type may give an error prompt. In addition, in this embodiment, if the user does not select, the system may also perform fiber traversal search according to the source node device, and automatically determine the network element of the matching type connected to the source node device. After the user selects the landing device, the system can provide parameters, including but not limited to network element tag information and port information, which need to be input into the landing device according to the service transition scenario selected by the user.
In this embodiment, after obtaining the floor device selected by the user, before selecting the target service that needs to be migrated, the method further includes:
and judging whether the floor equipment selected by the user supports dual-node interconnection protection, and if not, prompting the user to reselect. For example, assuming that a user selects Zw (point of work device) and Zp (point of protection device) devices as the floor devices, the system automatically determines whether these devices support DNI protection after the user selects the floor devices, and the determination results are as follows:
(1) DNI is not supported;
(2) single DNI support;
(3) support for dual DNI;
(4) single DNI and double DNI are supported;
(5) zero DNI and double DNI are supported.
When the floor equipment selected by the user is judged not to support DNI protection, prompting the user that the DNI protection is not supported and the floor equipment needs to be reselected; until the reselected floor device supports DNI protection.
For the specific process of S102, please refer to fig. 2, which includes:
s201: selecting all services which can be currently changed from the current original path services according to a network change scene and the floor equipment, and adding the selected services into an alternative service list;
s202: receiving a selection instruction issued by a user, wherein the selection instruction comprises a target service list which needs to be changed at this time; the user can select the target service to be changed and the number of the services to be changed according to the specific scene;
s203: and selecting the target service from the alternative service list according to the target service list sent by the user.
Specifically, after the list of alternative services is obtained, each service may be presented by using a table, and only the user label, the endpoint (classified into device + port information) of a (source node device) and a Z (unprotected ground point device), and the ranking (interface ranking) may be supported during the presentation. For selection by the user.
When the selection is provided through the form, functions of default full selection, deselection, reverse selection and the like can be provided, and a user can select in batches or in a single mode according to the requirement of the user. And the embodiment can also support the navigation service manager to manage according to the above mode.
In this embodiment, when the service transition scenario specified by the user is time division multiplexing unprotected-changed dual-node interconnection dual-homing, after the floor device selected by the user is obtained, a gateway IP (three-layer interface) selected by the user is also required to be obtained; and after the floor equipment and the network management IP selected by the user are obtained, selecting the target service needing to be changed.
When the service transition scenario is time division multiplexing unprotected-to-dual-node interconnection dual-homing and time division multiplexing multi-segment pseudo wire closed protection-to-dual-node interconnection dual-homing, after the service is searched back from the server, that is, after all services which can be currently migrated are selected, secondary filtering is needed, and services of A, Z which have end points all in the floor equipment (Zw and Zp) need to be excluded. Or, after the target service that needs to be migrated is selected, the service that the source node device endpoint and the floor point device endpoint are all on the floor device is directly excluded from the target service without performing secondary filtering.
In this embodiment, after the target service to be migrated is selected, complete information of the service may be further queried, and for a TDM unprotected scene, it needs to determine whether all the selected target services are PTN services, and the determination rule may be according to a rate of a service layer service in a route, and for a service rate of the PTN, only two types of pseudo wires and multi-segment pseudo wires are used, or else, the two types of pseudo wires represent non-PTN. And filtering the target service which is judged to be the non-PTN service, wherein the specific filtering mode can directly filter the target service without displaying the target service.
For the S103, the configuration of the service transition parameter for each target service may specifically be configured according to a preset parameter change corresponding relationship, and the configured parameter includes, but is not limited to, a service parameter and a protection parameter. The following examples illustrate:
when the service transition scene is changed from common dual-homing on the Ethernet bridge node to dual-node interconnection dual-homing, the service transition parameter configuration of each target service comprises the following steps:
for the end point of the target service A (source node equipment) is unchanged, an Automatic Protection Switching (APS) protocol of the protection group is modified, and if the APS protocol is in a pause state, the APS protocol is restored;
for a target service work Z (point of landing equipment) endpoint and a protection Z (point of landing equipment) endpoint, a double-node interconnection pseudo wire and a pseudo wire management entity group are added, and a double-node interconnection (DNI) pseudo wire protection group is added.
When the service transition scene is time division multiplexing unprotected dual-node interconnection dual-homing, the service transition parameter configuration for each target service comprises the following steps:
for the end point of the target service A, adding a pseudo wire and a management entity group of the pseudo wire for protection or bidirectional forwarding detection; if the working pseudo wire is not configured with a management entity group or bidirectional forwarding detection, the bidirectional forwarding detection is added; and adding a pseudo wire protection group;
for a target service work Z endpoint, adding a dual-node interconnection pseudo wire and a pseudo wire Management Entity Group (MEG), and adding a dual-node interconnection pseudo wire protection group;
and for the target service protection Z endpoint, adding a pseudo wire protection and a pseudo wire management entity group or Bidirectional Forwarding Detection (BFD), adding a double-node interconnection pseudo wire and a pseudo wire management entity group, and adding a double-node interconnection pseudo wire protection group.
When the service transition scene is a time division multiplexing multi-segment pseudo wire closed protection-to-dual-node interconnection dual-homing, the service transition parameter configuration of each target service comprises the following steps:
for the target service A endpoint, deleting the bidirectional forwarding detection on the protected multi-segment pseudo wire, and newly adding the bidirectional forwarding detection on the protected multi-segment pseudo wire;
for the Z end point of the target service work, deleting a closed protection group, deleting a protection pseudo wire and a management entity group/bidirectional forwarding detection, newly adding a dual-node interconnection pseudo wire, and newly adding a dual-node interconnection pseudo wire protection group;
for the target service protection Z endpoint, newly adding a protection pseudo wire and a management entity group or bidirectional forwarding detection, newly adding a dual-node interconnection pseudo wire protection group, and processing the last SPE in the direction of a source node device-a ground point device: the pseudowire's next hop IP and VCID are modified.
The above correspondence table is shown in table 1 below.
TABLE 1
Based on the correspondence table, the present invention will be described below by taking several specific cases as examples.
For two scenes of TDM unprotected DNI double homing and TDM multi-segment pseudo-wire enclosed protected DN double homing, the Z2STM port calls the query command to query according to the equipment, and then the STM port is extracted from the query result. After the user selects the port, whether the port is available at the port Z2 after the time slot at the port Z1 needs to be judged, and the unavailability needs to prompt the user which time slot number is unavailable. If both are available, the slot number needs to be automatically matched for Z2.
The DNI is changed into double attribution for TDM unprotected: and issuing a name to a server to inquire an available tunnel, and automatically initializing according to an inquiry result without emptying. Each row supports user selection.
For TDM multi-segment pseudowire closed protection to change DNI dual homing: only the last SPE point to the Z2 point of the original multi-segment pseudo wire in the direction from A to Z1 is needed to be used for protecting the protection tunnel of the pseudo wire, and a command path server is called to inquire the available tunnel. Each row supporting individual selection by the user.
The DNI tunnel is selected by the TNP parameters, other protection parameters are initialized according to the dual-homing protection parameters, and the MC-PW configuration mode needs to be initialized preliminarily according to the equipment family: dual DNIs are initialized for 90002.2 and 15K devices; 65. POTN, 60002.2 was initialized to single DNI. Here, whether DNI protection return result judgment is supported may be judged according to the foregoing.
In this embodiment, before the step S105 of issuing each configured target service to the corresponding network topology device, the method further includes:
and performing bandwidth verification of Connection Admission Control (CAC) on each configured target service, judging whether the new topology network can bear the target services, and if the verification is passed, allowing each configured target service to be issued to the corresponding network topology equipment. Otherwise, the current new topological network can not bear the target services, and the user is prompted to reselect the target services.
In addition, in the embodiment, CAC check does not need to be issued for routing iteration and dynamic tunnels. If the DNI pseudo wire is only added, the protection tunnel is not sent down, the failure needs to be returned when the CAC verification fails, and whether the sending is allowed or not can be further judged according to whether the global switch for the CAC verification and the equipment strong verification switch are strong or not. In this embodiment, after passing the CAC verification, the system may automatically calculate the operation sequence to be issued to the corresponding device, and store the configuration data in a database. And acquiring a protocol required by service reconfiguration, including OAM, QOS, TNP and other issuing equipment, from the protocol pool. And entering S105 data issuing.
When data is issued in step 105, the sent progress bar may be displayed according to the number of bars, and the number of bars whose progress has been migrated/the total number of bars. When the error stop is met in the sending process, the control can be carried out according to the threshold (for example, N) set by the initial page, the sending can be continued if the threshold N is not exceeded, and the sending can not be carried out if the threshold N is exceeded. It should be understood that the fault tolerance mechanism herein may employ any fault tolerance mechanism other than the examples described above. When the transmission fails, a display judgment display interface can be provided to prompt the user that the transmission fails, and after the data transmission succeeds to the equipment, the service transition process is ended.
It is noted that, it is possible that the previous batch fails to be delivered, and the subsequent batch fails to be delivered continuously. The report can be automatically exported after the completion of the issuing, and the position of the report is prompted on an interface.
In this embodiment, after completing the issuing of each configured target service to the corresponding network topology device and completing the change of the service model through the above S105, the original redundant subnet may be further deleted, and the process is shown in fig. 3 and includes:
s301: acquiring a target protection subnet which can be cleaned after the service transition;
s302: and clearing the acquired target protection subnet.
When the target protection sub-network which can be cleaned by the service transition is inquired, the tunnel protection sub-network which can be cleaned is returned, and then the tunnel protection sub-network can enter a cleaning field only if all the transitions are successful. And navigating to the TNP management interface according to the tunnel protection subnet returned by the server, and deleting by the user.
And ending the whole process of automatically adjusting the service transition.
In this embodiment, while the user executes the above S101, the user may formulate a transition policy according to the current requirement, where the policy includes but is not limited to: the maximum number of the changed services, the strategy of data backup, the strategy of batch delivery (such as the quantity of batch delivery), and the like. In S202, when the user selects the target service, the number of selected services is less than or equal to the number of services set in the policy. When the data backup policy is set, if the backup policy is a forced backup, the data must be forced to be backed up when being issued in the above S105, and the data can be issued only if the data backup is successful. When the backup strategy is not mandatory, the user is prompted to perform backup before data is issued, and if the user insists on selecting not to be used, the data can still be issued. When data is issued, the number of pieces issued in batches is limited by the number set in the strategy issued in batches. Therefore, resources can be better controlled and reasonably utilized.
Example two:
the present embodiment provides an automatic service transition device, please refer to fig. 4, which includes:
a transition information obtaining module 41, configured to obtain a service transition scenario and a floor device that are selected by a user according to a current network topology transition; the service transition scenario includes, but is not limited to, any one of changing common dual homing on an Ethernet bridge node into dual-node interconnection dual homing, changing time division multiplexing unprotected dual-node interconnection dual homing, and changing time division multiplexing multi-segment pseudo wire closed protection into dual-node interconnection dual homing. The user selects the service transition scenario to define the rate, the protection type and the service type. In this embodiment, after receiving the floor device selected by the user, the transition information obtaining module 41 may further determine whether the floor device selected by the user supports dual-node interconnection protection, and if not, prompt the user to reselect.
The service selection module 42 is configured to select a target service that needs to be migrated at this time from the current original path service according to a network migration scene and the ground equipment; the selection process is as follows:
and selecting all services which can be currently changed from the current original path services according to the network change scene and the floor equipment, and adding the services into the alternative service list. And receiving a selection instruction sent by a user, wherein the selection instruction comprises a target service list which needs to be changed at this time. And selecting the target service from the alternative service list according to the target service list sent by the user.
In this embodiment, when the service transition scenario specified by the user is time division multiplexing unprotected dual-node interconnection dual-homing, the service selection module 42 performs to select the target service to be transitioned only after acquiring the floor device selected by the user and acquiring the gateway IP (three-layer interface) selected by the user.
When the service transition scenario is time division multiplexing unprotected-to-dual-node interconnection dual-homing and time division multiplexing multi-segment pseudo wire closed protection-to-dual-node interconnection dual-homing, the service selection module 42 searches back the service from the server, that is, after all the services which can be currently migrated are selected, secondary filtering is needed, and the services of A, Z devices (Zw and Zp) whose endpoints are all on the ground are required to be excluded. Or, after the target service that needs to be migrated is selected, the service that the source node device endpoint and the floor point device endpoint are all on the floor device is directly excluded from the target service without performing secondary filtering.
In this embodiment, the service selection module 42 may further query complete information of the service after selecting the target service to be migrated, and for a TDM unprotected scene, it needs to determine whether all the selected target services are PTN services, and the determination rule may be according to the rate of the service layer service in the route, and for the service rate of the PTN, there are only two pseudo wires and multiple pseudo wires, and if not, these two pseudo wires represent non-PTN. And filtering the target service which is judged to be the non-PTN service, wherein the specific filtering mode can directly filter the target service without displaying the target service.
A parameter configuration module 43, configured to perform service transition parameter configuration on each target service; the configured parameters include, but are not limited to, traffic parameters and protection parameters. For example:
when the service transition scene is changed from common dual-homing on the Ethernet bridge node to dual-node interconnection dual-homing, the service transition parameter configuration of each target service comprises the following steps:
for the end point of the target service A is not changed, an Automatic Protection Switching (APS) protocol of the protection group is modified, and if the APS protocol is in pause, the APS protocol is changed to recovery;
and for the target service working Z endpoint and the protection Z endpoint, newly adding a double-node interconnection pseudo wire and a pseudo wire management entity group, and newly adding a double-node interconnection (DNI) pseudo wire protection group.
When the service transition scene is time division multiplexing unprotected dual-node interconnection dual-homing, the service transition parameter configuration for each target service comprises the following steps:
for the end point of the target service A, adding a pseudo wire and a management entity group of the pseudo wire for protection or bidirectional forwarding detection; if the working pseudo wire is not configured with a management entity group or bidirectional forwarding detection, the bidirectional forwarding detection is added; and adding a pseudo wire protection group;
for a target service work Z endpoint, adding a dual-node interconnection pseudo wire and a pseudo wire Management Entity Group (MEG), and adding a dual-node interconnection pseudo wire protection group;
and for the target service protection Z endpoint, adding a pseudo wire protection and a pseudo wire management entity group or Bidirectional Forwarding Detection (BFD), adding a double-node interconnection pseudo wire and a pseudo wire management entity group, and adding a double-node interconnection pseudo wire protection group.
When the service transition scene is a time division multiplexing multi-segment pseudo wire closed protection-to-dual-node interconnection dual-homing, the service transition parameter configuration of each target service comprises the following steps:
for the target service A endpoint, deleting the bidirectional forwarding detection on the protected multi-segment pseudo wire, and newly adding the bidirectional forwarding detection on the protected multi-segment pseudo wire;
for the Z end point of the target service work, deleting a closed protection group, deleting a protection pseudo wire and a management entity group/bidirectional forwarding detection, newly adding a dual-node interconnection pseudo wire, and newly adding a dual-node interconnection pseudo wire protection group;
for the target service protection Z endpoint, newly adding a protection pseudo wire and a management entity group or bidirectional forwarding detection, newly adding a dual-node interconnection pseudo wire protection group, and processing the last SPE in the A-Z2 direction: the pseudowire's next hop IP and VCID are modified.
The protocol selection module 44 is configured to select a target protocol required by each target service change service model from the protocol pool and send the target protocol to the network topology device; the screened target protocol includes but is not limited to at least one of OAM protocol, QOS protocol and TNP protocol.
And the transition processing module 45 is configured to issue each configured target service to the corresponding network topology device and complete the change of the service model.
Referring to fig. 5, the automatic service transition device in this embodiment further includes a checking module 46, configured to perform bandwidth checking on connection admission control on each configured target service before the transition processing module 45 issues each configured target service to the corresponding network topology device, and if the checking is passed, each configured target service is allowed to be issued to the corresponding network topology device. Otherwise, the current new topological network can not bear the target services, and the user is prompted to reselect the target services. In addition, in the embodiment, CAC check does not need to be issued for routing iteration and dynamic tunnels. If the DNI pseudo wire is only added, the protection tunnel is not sent down, the failure needs to be returned when the CAC verification fails, and whether the sending is allowed or not can be further judged according to whether the global switch for the CAC verification and the equipment strong verification switch are strong or not. After the CAC verification is passed, the system can automatically calculate the operation sequence issued to the corresponding equipment, and the configuration data is stored in a warehouse. The protocol selection module 44 then obtains the protocols required for service reconfiguration, including OAM, QOS, TNP and other issuing devices, from the protocol pool.
When the transition processing module 45 issues the data, the sent progress bar may be displayed according to the number of bars, and the number of bars whose progress has been migrated/the total number of bars. When the error stop is met in the sending process, the control can be carried out according to the threshold (for example, N) set by the initial page, the sending can be continued if the threshold N is not exceeded, and the sending can not be carried out if the threshold N is exceeded. It should be understood that the fault tolerance mechanism herein may employ any fault tolerance mechanism other than the examples described above. When the transmission fails, a display judgment display interface can be provided to prompt the user that the transmission fails, and after the data transmission succeeds to the equipment, the service transition process is ended.
Referring to fig. 6, the service transition device in this embodiment further includes a target subnet acquiring module 47 and a subnet cleaning module 48, where:
the target subnet acquiring module 47 is configured to acquire a target protection subnet that can be cleaned after the service transition after the transition processing module 45 issues each configured target service to the corresponding network topology device and completes the change of the service model;
the subnet cleaning module 48 is configured to clean the obtained target protection subnet to improve resource utilization. In this embodiment, when querying a target protection subnet whose service transition can be cleared, the target subnet acquisition module 47 returns to a tunnel protection subnet that can be cleared, and then only if all transitions are successful, the target subnet can enter the clearing site. And navigating to the TNP management interface according to the tunnel protection subnet returned by the server, and deleting by the user.
And ending the whole process of automatically adjusting the service transition.
Referring to fig. 7, the service migration apparatus in this embodiment may further include a policy making module 49, and when a user makes a service migration scenario, the user may make a migration policy according to the current requirement through the policy making module 49, where the policy includes but is not limited to: the maximum number of the changed services, the strategy of data backup, the strategy of batch delivery (such as the quantity of batch delivery), and the like. Thus, when the service selection module 42 selects the target service, the number of the selected services is less than or equal to the number of the services set in the policy. When the data backup strategy is set, and when the backup strategy is a forced backup, the migration processing module 45 issues data, the forced backup is required to be performed, and the data can be issued only if the data backup is successful. When the backup strategy is not mandatory, the user is prompted to perform backup before data is issued, and if the user insists on selecting not to be used, the data can still be issued. When the data is issued, the number of the batch issued pieces is limited by the number set in the strategy of the batch issued, so that the resources can be better and reasonably utilized.
Example three:
for a better understanding of the present invention, the present invention is further illustrated below with reference to the overall migration process shown in FIG. 8. Please refer to fig. 8, which includes:
s801: receiving a service transition scene selected by a user;
s802: the landing equipment receives user input;
s803: carrying out migration influence service analysis, and screening out all services which can be currently migrated for presentation;
s804: selecting a target service needing to be changed from the services according to the instruction of the user;
s805: migration service parameter configuration is carried out on the target service so as to meet the requirements of a new service model;
s806: configuration data is stored in a warehouse;
s807: sending a sending scheme and a sequence after CAC (computer aided control) verification is carried out;
s808: fishing currently needed protocols including but not limited to at least one of OAM protocol, QOS protocol and TNP protocol from the protocol pool;
s809: data are issued to the equipment;
s810: judging whether the sending is successful, if so, turning to S811, otherwise, turning to S812;
s811: and acquiring a redundant protection subnet for clearing.
S812: and returning the issuing failure information.
Based on the above process, please refer to fig. 9 and fig. 10, which show the whole transition process of the TDM unprotected DNI dual homing scenario. In fig. 9, 1 PW pseudo wire is arranged between a network element NE1 and a network element NE2 device, where 10 TDM unprotected services are carried on the pseudo wire, and a network element NE3 network device is increased by topology expansion, so that the TDM unprotected services from NE1 to NE2 need to be migrated to 4 network devices from NE2 to NE3, and the migrated services are modified into a TDM DNI dual-homing scenario, so as to clean redundant data after the services are migrated. The process is shown in fig. 10 and includes:
s1001: starting a service transition automatic adjustment system, and selecting a scene of service transition as a TDM unprotected DNI changed dual-homing scene; the system displays the image-text configuration introduction of the service transition scene on an interface;
s1002: setting a transition strategy as issuing 10 batches of each batch in batches, stopping issuing after 1 error is reached, allowing 10 changes at most in the operation, and selecting forced backup for data backup;
s1003: according to the transition scene, the NE2 and the NE3 which need the user to select the floor equipment are given;
giving out equipment and interfaces which need to be configured after automatic analysis, displaying and selecting floor equipment on an interface, wherein the Z1 equipment is NE1, the Z2 equipment is NE3, and the Z1STM port is NE2-SFP [0-4-2-1] channelized STM-1 composite port: 1;
s1004: the system automatically filters all the services to be migrated from the original path;
s1005: the user selects the service to be changed according to the own needs (assuming 4 items mark service);
the system automatically analyzes 10 services loaded on the network topology before the transition according to the input equipment information, defaults to all the services selected, and manually selects 4 TDM in batches;
s1006: displaying relevant parameters of a newly added node and a protection node which are needed to be configured for the selected service to be migrated on an interface;
selecting TDM-MSPW-dual-homing-IPRAN by a parameter template, selecting an NE3-SFP [0-4-3-1] channelized STM-1 composite port by an STM port of Z2, selecting a Tunnel by a Tunnel policy selection hand, selecting a Tunnel by a Tunnel, configuring dual DNI by an MC-PW configuration mode, filling a working redundancy group number 1, filling a protection redundancy group number 1, and selecting the same working pseudowire bandwidth parameter but closing the flow control of the pseudowire by a DNI pseudowire;
s1007, the system automatically checks CAC, and judges whether the CAC bandwidth is enough according to the tunnel and the service parameter carried by the service selected by the user;
s1008: after the verification is passed, all the configuration data and the operation sequences are put into a database;
s1009: the system acquires an OAM and TNP protocol required by a target service change and configuration service from the protocol pool, and issues the OAM and TNP protocol to NE1\ NE2\ NE3 equipment according to the sequence of the operation sequence;
s1010: calling the adapter, finding the corresponding NE 1/NE 2/NE 3 equipment type, finding the corresponding adapter container through the equipment type, finding the corresponding equipment to issue services, and giving a progress prompt and an operation log on an interface;
s1011: after the equipment is issued, the equipment returns information to the database to prompt that the service transition is completed;
s1012: and acquiring a redundant protection subnet for clearing.
The common dual homing at the ethernet bridge contact is exemplified below as DNI dual homing. In this example, the user automatically obtains the incoming service information (including the service change scene) that needs to be changed through the reporting system, and here, unlike the example shown in fig. 10, the service change information is automatically entered through the form of the report, and does not need to rely on manual input.
The system judges that the scene of changing the common double gauge applied with the Ethernet bridging point into DNI double gauge through the transmitted parameters, automatically analyzes that the point A is not changed, only modifies the APS protocol of the protection group, needs to judge whether the APS protocol is suspended, and needs to be changed into recovery if the APS protocol is suspended. Working Z-point 1 adds new DNI pseudowires and pseudowire MEG (BFD not needed), 2 adds new DNI pseudowire protection group. Protection Z-point, 1 new DNI pseudowire and pseudowire MEG (BFD not needed), 2 new DNI pseudowire protection group. The system calculates all services borne on the original path according to default configuration, displays the services to a user in a table form, defaults all the services to be changed, performs CAC pre-verification on data before data transmission, checks the bandwidth after the change, calls protocol pool data, and sends the protocol pool data to corresponding equipment through an adapter. And the equipment returns a success prompt, and the Ethernet service transition is completed.
It will be apparent to those skilled in the art that the modules or steps of the invention described above may be implemented in a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented in program code executable by a computing device, such that they may be stored on a storage medium (ROM/RAM, magnetic disk, optical disk) and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (15)
1. A method for automatically changing service is characterized by comprising the following steps:
acquiring a service transition scene selected by a user according to the current network topology transition and a landing device;
selecting the target service needing to be changed from the current original path service according to the service change scene and the landing equipment;
carrying out service transition parameter configuration on each target service;
selecting the target protocol required by each target service change service model from the protocol pool and sending the target protocol to the network topology equipment;
and transmitting each configured target service to corresponding network topology equipment and finishing the change of the service model.
2. The method for automatically migrating services according to claim 1, wherein before sending each configured target service to the corresponding network topology device, the method further comprises:
and performing bandwidth verification of the connection permission control on each configured target service, and if the verification is passed, allowing each configured target service to be issued to the corresponding floor equipment.
3. The method of claim 1, wherein selecting the target service from the current original path services according to the service transition scenario and a ground device comprises:
selecting all services which can be currently changed from the current original path services according to the service change scene and the landing equipment, and adding the selected services into an alternative service list;
receiving a selection instruction issued by a user, wherein the selection instruction comprises a target service list which needs to be changed at this time;
and selecting the target service from the alternative service list according to the target service list.
4. The method as claimed in any one of claims 1 to 3, wherein after completing the sending of each configured target service to the corresponding network topology device and completing the change of the service model, the method further comprises:
acquiring a target protection subnet which can be cleaned after the service transition;
and clearing the acquired target protection subnet.
5. A service auto-transition method according to any of claims 1-3, characterized in that the service transition scenario includes but is not limited to any of the following scenarios:
the common dual-homing on the Ethernet bridge node is changed into dual-node interconnection dual-homing;
the time division multiplexing is not protected and is changed into double-node interconnection and double-homing;
the time division multiplexing multi-segment pseudo wire closed protection is changed into dual-node interconnection dual homing.
6. The method of claim 5, wherein when the service transition scenario is changed from normal dual-homing on an ethernet bridge node to dual-node interconnect dual-homing, configuring the service transition parameters for each target service comprises:
for the end point of the target service source node equipment is unchanged, modifying the automatic protection switching protocol of the protection group, and if the automatic protection switching protocol is in pause, then modifying to recover;
and adding a double-node interconnection pseudo wire and pseudo wire management entity group and a double-node interconnection pseudo wire protection group for the target service working ground point equipment endpoint and the protection ground point equipment endpoint.
7. The method of claim 5, wherein when the service transition scenario is time division multiplexing unprotected-to-dual node interconnect dual homing, performing service transition parameter configuration on each target service comprises:
for the end point of the target service source node equipment, a pseudo wire and a management entity group of the pseudo wire are newly added for protection or bidirectional forwarding detection; if the working pseudo wire is not configured with a management entity group or bidirectional forwarding detection, the bidirectional forwarding detection is added; and adding a pseudo wire protection group;
for the end point of the target service working ground point equipment, newly adding a double-node interconnection pseudo wire and a pseudo wire management entity group, and newly adding a double-node interconnection pseudo wire protection group;
and for the endpoint of the target service protection ground point equipment, adding a pseudo wire protection and pseudo wire management entity group or bidirectional forwarding detection, adding a double-node interconnection pseudo wire and pseudo wire management entity group, and adding a double-node interconnection pseudo wire protection group.
8. The method of claim 5, wherein when the service transition scenario is time division multiplexing multi-segment pseudo wire closed protection-to-dual node interconnection dual homing, configuring service transition parameters for each target service comprises:
for the destination service source node equipment endpoint, deleting the bidirectional forwarding detection on the protected multi-segment pseudo wire, and newly adding the bidirectional forwarding detection on the protected multi-segment pseudo wire;
for the end point of the target service working ground point equipment, deleting a closed protection group, deleting a protection pseudo wire and a management entity group/bidirectional forwarding detection, newly adding a dual-node interconnection pseudo wire, and newly adding a dual-node interconnection pseudo wire protection group;
for the target service protection of the endpoint of the floor point device, newly adding a protection pseudo wire and a management entity group or bidirectional forwarding detection, newly adding a double-node interconnection pseudo wire protection group, and processing the last SPE in the direction of the source node device-the floor point device: the pseudowire's next hop IP and VCID are modified.
9. The method for automatically changing services according to claim 5, wherein after acquiring the floor device selected by the user, before selecting the target service to be changed, further comprising:
and judging whether the floor equipment selected by the user supports dual-node interconnection protection, and if not, prompting the user to reselect.
10. The method according to claim 9, wherein when the service transition scenario is time division multiplexing unprotected-to-dual node interconnection dual-homed, after the floor device selected by the user is obtained, before the target service to be transitioned is selected, the method further comprises obtaining a gateway IP selected by the user;
and/or when the service transition scene is any one of time division multiplexing unprotected-to-double-node interconnection dual homing and time division multiplexing multi-segment pseudo wire closed type protected-to-double-node interconnection dual homing, after selecting the target service to be transitioned, the method further comprises the step of removing the service of the equipment with the source node equipment endpoint and the equipment with the landing point equipment endpoint from the target service.
11. A method for automatic service transition according to any of claims 1-3, wherein the target protocol comprises at least one of OAM protocol, QOS protocol, TNP protocol.
12. An apparatus for automatically migrating a service, comprising:
the transition information acquisition module is used for acquiring a service transition scene selected by a user according to the current network topology transition and the landing equipment;
the service selection module is used for selecting the target service needing to be changed at this time from the current original path service according to the service change scene and the landing equipment;
the parameter configuration module is used for carrying out service transition parameter configuration on each target service;
the protocol selection module is used for selecting a target protocol required by each target service change service model from the protocol pool and sending the target protocol to the network topology equipment;
and the transition processing module is used for issuing each configured target service to the corresponding network topology equipment and finishing the change of the service model.
13. The apparatus according to claim 12, further comprising a verification module, configured to perform bandwidth verification for connection admission control on each configured target service before the transition processing module issues each configured target service to the corresponding floor device network topology device, and if the verification is passed, each configured target service is allowed to be issued to the corresponding floor device.
14. The automatic service transition device according to claim 12 or 13, further comprising:
the target subnet acquisition module is used for acquiring a target protection subnet which can be cleaned after the service transition after the transition processing module issues each configured target service to the corresponding network topology equipment and completes the change of the service model;
and the subnet cleaning module is used for cleaning the obtained target protection subnet.
15. The service auto-transition device according to claim 12 or 13, wherein the service transition scenario includes but is not limited to any of the following scenarios:
the common dual-homing on the Ethernet bridge node is changed into dual-node interconnection dual-homing;
the time division multiplexing is not protected and is changed into double-node interconnection and double-homing;
the time division multiplexing multi-segment pseudo wire closed protection is changed into dual-node interconnection dual homing.
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| CN109088748B (en) * | 2018-07-16 | 2021-08-03 | 烽火通信科技股份有限公司 | Universal network management configuration method and system for Ethernet service of miniaturized POTN (packet optical transport network) equipment |
| CN111314802B (en) * | 2018-12-12 | 2023-05-16 | 中兴通讯股份有限公司 | Optical fiber cutting method and device, SDN controller, system and storage medium |
| CN112218334B (en) * | 2019-07-09 | 2023-07-04 | 中国移动通信集团安徽有限公司 | Dynamic optimization method and device for core network load and computing equipment |
| CN112148346A (en) * | 2020-10-20 | 2020-12-29 | 云账户技术(天津)有限公司 | Method and device for docking platform system |
| CN113726645A (en) * | 2021-08-06 | 2021-11-30 | 中盈优创资讯科技有限公司 | STN network link-supplementing service switching method and device |
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| EP2328355A1 (en) * | 2009-11-27 | 2011-06-01 | Koninklijke KPN N.V. | Automated service migration |
| CN102739624B (en) * | 2011-04-15 | 2014-09-10 | 中兴通讯股份有限公司 | Method and system for automatically migrating business of passive optical network unit |
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| CN103139139B (en) * | 2011-11-22 | 2015-11-25 | 华为技术有限公司 | The method and apparatus of business migration between subscriber equipment |
| CN102917025B (en) * | 2012-09-21 | 2015-06-10 | 苏州盈联智能科技股份有限公司 | Method for business migration based on cloud computing platform |
| CN102983997A (en) * | 2012-11-21 | 2013-03-20 | 中兴通讯股份有限公司 | Method and device for migrating master services |
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