CN108964944B - Execution strategy issuing method, processing method and device for remote management operation - Google Patents
Execution strategy issuing method, processing method and device for remote management operation Download PDFInfo
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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Abstract
The invention provides an execution strategy issuing method, a processing method and a device for remote management operation, wherein the execution strategy issuing method for the remote management operation comprises the following steps: configuring an execution policy of a remote management operation, the execution policy comprising: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed; and sending the configured execution strategy of the remote management operation to an optical network unit. According to the technical scheme, when the remote management operation which can cause the interruption of the running service is executed, the remote management operation can be selectively executed according to the specific state of the ONU, so that the problem that the service which is used by a user is interrupted due to remote management is avoided, and the user experience is improved.
Description
Technical Field
The invention relates to the field of communication, in particular to an execution strategy issuing method, a processing method and a device for remote management operation.
Background
A Passive Optical Network (PON) is a point-to-multipoint network, and includes an Optical Line Terminal (OLT) at a central office, an Optical Distribution Network (ODN), and a plurality of Optical Network Units (ONUs) at subscribers, and fig. 1 is a schematic structural diagram of a PON system. Upstream data is transmitted from the ONU to the OLT in a TDMA (Time Division Multiple Access) manner. Downstream data is broadcast from the OLT to each of the reachable ONUs. For better Control and Management of multiple hanging ONUs, Gigabit Passive Optical Networks (GPONs) provide Management and Control interfaces (OMCI), and Ethernet Passive Optical Networks (EPONs) provide operations, administration, and maintenance (OAM).
In the GPON system, an OLT manages the ONU through an OMCI protocol, and a managed carrier is an OMCI message based on a management entity. By issuing different OMCI messages, various remote management can be realized. Some of the management operations may interrupt the running service on the ONU, such as remote Reboot (Reboot), remote activation version (active image), management information base reset (MIB reset), and so on. Similarly, some remote management in EPON systems also interrupts the ongoing traffic on the ONUs.
If an end user experiences services through the ONUs, such as Internet access (Internet), Internet television (IPTV), wireless Internet access (WLAN), etc., the OLT performs a remote restart (Reboot) management operation at this time, and the ONUs perform immediately, the services of the user are interrupted, resulting in poor user experience.
Disclosure of Invention
The invention provides an execution strategy issuing method, a processing method and a device for remote management operation, which are used for solving the problem that a passive optical network system interrupts ongoing service when executing remote management operation.
In one aspect, the present invention provides a method for issuing an execution policy for remote management operation, including:
configuring an execution policy of a remote management operation, the execution policy comprising: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
and sending the configured execution strategy of the remote management operation to an optical network unit.
Wherein the remote management operation is characterized by: operation type and/or operation validation object.
Wherein the condition for performing the remote management operation is a detected state of the optical network unit.
Wherein the state of the optical network unit comprises one or more of the following states:
whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state.
Wherein the manner of executing the remote management operation includes: immediate execution of the remote management operation, delayed execution of the remote management operation, or refusal to execute the remote management operation.
The method for configuring the execution strategy of the remote management operation comprises the following steps:
newly building a management entity ME, wherein the attribute field of the ME comprises: a management entity instance identification field and a policy schedule field; wherein the policy schedule includes:
a characteristic field of the remote management operation, a condition field to perform the remote management operation, and a manner field to perform the remote management operation.
Wherein the remote management operation is characterized by:
the method comprises the steps that an optical network unit manages and controls the combination of the ME type, the ME attribute mask and the message type of an interface OMCI message, wherein any one or two of the combination of the ME type, the ME attribute mask and the message type of the OMCI message is/are default; alternatively, the first and second electrodes may be,
the characteristics of the remote management operation include a message type of the OMCI message.
Wherein the condition field for performing the remote management operation comprises a plurality of bit fields, the plurality of bit fields being sequentially used to represent:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-optical network unit management control interface OMCI management ONU service, local ONU management service, asynchronous transfer mode ATM service, time division multiplexing mode TDM service, architectural network premiums networks/multimedia over coax alliance MoCA service, optical synchronous digital transmission network Sdh-network service, and reserved fields.
The method for configuring the execution strategy of the remote management operation comprises the following steps:
an attribute field for indicating an execution policy of a remote management operation of an operation administration maintenance, OAM, message is set.
Wherein the characteristics of the remote management operation include a message type of an OAM message; alternatively, the characteristics of the remote management operation include a combination of a management object value BLV, a message type, and individual service type status fields of the message.
Wherein the condition for performing the remote management operation comprises a plurality of bytes, the plurality of bytes being sequentially used to represent:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-operation management maintenance, OAM, management, ONU, local ONU, asynchronous transfer mode, ATM, TDM, building network premiums networks/multimedia over coax alliance, MoCA, optical synchronous digital transmission network, Sdh-network, and reserved fields.
In another aspect, the present invention provides a method for processing remote management operations, including:
receiving a remote management operation message sent by a light line terminal;
processing the received remote management operation message according to a pre-configured execution strategy of the remote management operation; wherein the execution policy comprises: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed.
Wherein, processing the received remote management operation message specifically includes:
matching the characteristics of the received remote management operation message with the characteristics of the remote management operation of the optical network unit in the pre-configured execution strategy; and when the matching is successful, the current state of the optical network unit is further acquired, the current state of the optical network unit is matched with the condition for executing the remote management operation in the pre-configured execution strategy, and when the matching is successful, the received remote management operation message is processed according to the corresponding mode for executing the remote management operation in the pre-configured execution strategy.
Wherein the remote management operation is characterized by one of the following features:
the message type of the OMCI message of the optical network unit management control interface;
the management entity ME type, ME attribute mask and OMCI message type combination of OMCI message;
the message type of the operation administration maintenance OAM message;
a combination of a management object value BLV, a message length, a message type, and individual service type status fields of the message.
Before receiving a remote management operation message sent by a light line terminal, the method also comprises the following steps;
and receiving an execution strategy of the remote management operation sent by the optical line terminal.
In another aspect, the present invention provides an optical line terminal, including:
a configuration module configured to configure an execution policy of a remote management operation, the execution policy including: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
and the communication module is used for sending the execution strategy of the configured remote management operation to an optical network unit.
Wherein the remote management operation is characterized by: operation type and/or operation validation object.
Wherein the condition for performing the remote management operation is a detected state of the optical network unit.
Wherein the state of the optical network unit comprises one or more of the following states:
whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state.
Wherein the manner of executing the remote management operation includes: performing the remote management operation immediately, delaying performance of the remote management operation, or denying performance of the remote management operation.
The configuration module configures an execution policy of the remote management operation, and the configuration policy comprises:
creating a management entity ME, wherein the attribute field of the ME comprises: a management entity instance identification field and a policy schedule field; wherein the policy schedule includes:
a characteristic field of the remote management operation, a condition field to perform the remote management operation, and a manner field to perform the remote management operation.
Wherein the remote management operation is characterized by:
the method comprises the steps that an optical network unit manages and controls the combination of the ME type, the ME attribute mask and the message type of an interface OMCI message, wherein any one or two of the combination of the ME type, the ME attribute mask and the message type of the OMCI message is/are default; alternatively, the first and second electrodes may be,
the characteristics of the remote management operation include a message type of the OMCI message.
Wherein the condition field for performing the remote management operation comprises a plurality of bit fields, the plurality of bit fields being sequentially used to represent:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-optical network unit management control interface OMCI management ONU service, local ONU management service, asynchronous transfer mode ATM service, time division multiplexing mode TDM service, architectural network premiums networks/multimedia over coax alliance MoCA service, optical synchronous digital transmission network Sdh-network service, and reserved fields.
Wherein the configuration module configures an execution policy of the remote management operation, including:
an attribute field for indicating an execution policy of a remote management operation of an operation administration maintenance, OAM, message is set.
Wherein the characteristic of the remote management operation comprises a message type of an OAM message; alternatively, the characteristics of the remote management operation include a combination of a management object value BLV, a message type, and individual service type status fields of the message.
Wherein the condition for performing the remote management operation comprises a plurality of bytes, the plurality of bytes being sequentially used to represent:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-operation management maintenance, OAM, management, ONU, local ONU, asynchronous transfer mode, ATM, TDM, building network premiums networks/multimedia over coax alliance, MoCA, optical synchronous digital transmission network, Sdh-network, and reserved fields.
In another aspect, the present invention provides an optical network unit, including:
the communication unit is used for receiving a remote management operation message sent by the optical line terminal;
the processing unit is used for processing the received remote management operation message according to a preset execution strategy of the remote management operation; wherein the execution policy comprises: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed.
Wherein, the processing unit processes the received remote management operation message, which specifically includes:
matching the characteristics of the received remote management operation message with the characteristics of the remote management operation of the optical network unit in the pre-configured execution strategy; and when the matching is successful, the current state of the optical network unit is further acquired, the current state of the optical network unit is matched with the condition for executing the remote management operation in the pre-configured execution strategy, and when the matching is successful, the received remote management operation message is processed according to the mode for executing the remote management operation in the pre-configured execution strategy.
Wherein the remote management operation is characterized by one of the following features:
the message type of the OMCI message of the optical network unit management control interface;
the management entity ME type, ME attribute mask and OMCI message type combination of OMCI message;
the message type of the operation administration maintenance OAM message;
a combination of a management object value BLV, a message length, a message type, and individual service type status fields of the message.
In another aspect, the present invention provides a system, including the above optical line terminal and the above optical network unit.
The invention has the following beneficial effects:
compared with the prior art, the scheme provided by the embodiment of the invention can selectively execute the remote management operation according to the specific state of the ONU when executing certain remote management operation which can cause the interruption of the running service, thereby avoiding the problem that the service which is used by a user is interrupted due to the remote management and improving the user experience.
Drawings
Fig. 1 is a schematic configuration diagram of a PON system in the related art;
fig. 2 is a flowchart of an execution policy issuing method of remote management operation in the first embodiment of the present invention;
fig. 3 is a flowchart of a remote management control method in a second embodiment of the present invention;
fig. 4 is a flowchart of ONU signaling interaction with OLT in the remote management process according to the third embodiment of the present invention;
fig. 5 is a flowchart of ONU signaling interaction with OLT in the remote management process according to the fourth embodiment of the present invention;
fig. 6 is a block diagram of an optical line terminal according to a seventh embodiment of the present invention;
fig. 7 is a block diagram of an optical network unit according to an eighth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
This embodiment provides an execution policy issuing method for remote management operation, where the method may be executed by an OLT, fig. 2 is a flowchart of the method, and as shown in fig. 2, the method includes:
step 201: creating (configuring) an execution policy of a remote management operation, the execution policy of the remote management operation including: characteristics of the remote management operation, conditions under which the remote management operation is performed, and a manner in which the remote management operation is performed;
step 202: and sending the created operation execution strategy of the remote management to the ONU.
Wherein the remote management operation is characterized by: operation type and/or operation validation object.
The condition for performing the remote management operation is a detected state of the optical network unit, which may include all detectable states of the optical network unit, including but not limited to one or more of the following states:
whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state.
The manner of performing the remote management operation includes: immediate execution of the remote management operation, delayed execution of the remote management operation, or refusal to execute the remote management operation.
For the GPON system, the step of creating the remote management operation execution policy may specifically include: newly building a management entity ME, wherein the definition of the attribute field of the ME comprises the following steps: a management entity instance identification field and a policy schedule field; the management entity instance identification field is used for indicating a single instance of the management entity, and the policy list field is used for indicating a remote management operation execution mode entry of one or more ONU management control interface OMCI messages.
The policy list includes: a remote management operation characteristic field, a condition field for performing the remote management operation, and a manner field for performing the remote management operation. Wherein the condition field for performing the remote management operation comprises a plurality of bit fields, which in turn are used to indicate one or more of: voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-optical network unit management control interface OMCI management ONU service, local ONU management service, asynchronous transfer mode ATM service, time division multiplexing mode TDM service, architectural network premiums networks/multimedia over coax alliance MoCA service, optical synchronous digital transmission network Sdh-network service, and reserved fields.
For an EPON system, creating a remote management operation execution policy may specifically include: and defining a private attribute, wherein the attribute field represents an execution strategy of the remote management operation of the operation administration maintenance OAM message and is described as the OAM message execution strategy. In this case, the characteristic field of the remote management operation includes a message type of the OAM message, or a combination of a management object value BLV, a message length, a message type, and respective traffic type status fields of the message; the condition field for performing remote management operations contains a plurality of bytes that in turn are used to indicate one or more of the following: voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-operation management maintenance, OAM, management, ONU, local ONU, asynchronous transfer mode, ATM, TDM, building network premiums networks/multimedia over coax alliance, MoCA, optical synchronous digital transmission network, Sdh-network, and reserved fields.
Second embodiment
The present embodiment provides a remote management control method, which may be executed by an ONU, and fig. 3 is a flowchart of the method, and as shown in fig. 3, the method includes the following processes:
step 301: receiving a remote management operation message sent by an Optical Line Terminal (OLT);
step 302: processing the received remote management operation message according to a pre-configured execution strategy of the remote management operation; wherein the execution policy includes: characteristics of the remote management operation, conditions under which the remote management operation is performed, and a manner in which the remote management operation is performed.
The processing of the received remote management operation message specifically includes:
matching the characteristics of the received remote management operation message with the characteristics of the remote management operation of the optical network unit in a pre-configured execution strategy; and when the matching is successful, the current state of the optical network unit is further acquired, the current state of the optical network unit is matched with the condition for executing the remote management operation in the pre-configured execution strategy, and when the matching is successful, the received remote management operation message is processed according to the mode for executing the remote management operation corresponding to the pre-configured execution strategy. That is, the operation execution policy of the remote management configured in advance is effective for the management operation, and therefore, the remote management operation is processed according to the execution manner in the execution policy of the remote management operation. That is, when the execution policy is allowed, the remote management operation is immediately executed (or deferred execution); and when the execution strategy is refused, refusing to execute the remote management operation and responding to busy.
If any matching is unsuccessful in the two matching processes, it indicates that the execution policy of the pre-configured remote management operation is invalid for the remote management operation, so that the remote management operation is processed in a processing manner specified in the existing standard, and the detailed description of the embodiment is omitted.
For GPON systems, features of remote management operations include: the message type of the OMCI message of the optical network unit management control interface; or a combination of the management entity ME type, ME attribute mask, and OMCI message type of OMCI messages.
For an EPON system, the features of the remote management operation include at least: the message type of the OAM message is maintained by operation management; or a combination of a BLV (Branch-Leaf-Value), a message length, a message type, and respective traffic type status fields of the message.
Third embodiment
The embodiment relates to a GPON system, and the following Management Entity (ME) types are newly defined: message execution policy, which is the same as the execution policy of the remote management operation in the first and second embodiments, the type ME is created by the OLT, the defined attribute field indicates the OMCI Message execution policy, and the OLT configures by a Set (configuration) Message for the attribute. The OMCI message enforcement policy may be expressed in the form of a black and white list, see table 1 below. Defining the policy consists of three parts: message characteristics (characteristics of remote management operations), conditions (i.e., conditions for performing remote management operations), and policies (means for performing remote management operations, which may include immediate execution, delayed execution, or execution refusal), in this embodiment, the message characteristics are message types of the OMCI message; the condition is the state of the ONU traffic.
TABLE 1
| Message type | ONU traffic status | Policy |
The message type may specifically be one of all message types defined by the ITU-T G.988 standard "Table 11.2.2-1OMCI message types".
The ONU service state may specifically be a service whose message characteristics need to be concerned and the service state is represented in a mask form, which represents one service or a combination of multiple services. 0 indicates that the service is in a non-operating state, and 1 indicates that the service is in an operating state.
The policy may specifically be a response that the ONU needs to make to a message meeting the condition, and specifically may include: and immediately executing and responding to the OLT execution result, or refusing to execute and responding to the OLT Busy.
In this embodiment, a single ONU supports only one instance of the remote creation of the management entity.
In the present embodiment, the message execution policy includes the following attributes:
entity instance identification (Managed entity id) of the management entity: the attribute represents an instance of the management entity, which has only one instance, and the field value is fixed to 0 (R, Set-by-create) (2 bytes).
Policy list (Policy list table): the attributes are table attributes representing one or more OMCI message execution policy entries. Each entry contains the following: table control, Message type, Service running status mask, Policy, and Reserved.
Table control (2 bytes): (this field is a Table attribute control field, and has the same meaning as the Table control field in the Table attributes of other management entities of ITU-T G.988), as shown in Table 2 below.
TABLE 2
Message type (1 bytes): this field indicates the message type, defined in ITU-T G.988 table 11.2.2-1, with values outside the table being illegal values.
Service planning status mask (2 bytes): this field indicates the service running status that needs to be concerned, and indicates it in a masked form (0 indicates not running, 1 indicates running), and the meaning of each Bit is shown in table 3 below:
TABLE 3
Policy (1 bytes): this field indicates OMCI message execution policy, 0 indicates immediate execution and response to OLT execution result, and 1 indicates refusal of execution and response to OLT Busy.
Reserved (2 bytes): fields are reserved.
(R, W) (directory) (8N bytes, where N is the number of entries in the table) occupies 8N bytes, with N being the number of entries.
Management Entity (ME) type newly defined in this embodiment: message execution policy, supporting the following operations (Actions):
create, delete, get, and set.
The entity should create before the management operation needed to be acted, and configure the OMCI message execution policy, and the ONU responds to the OLT according to the execution policy configured by the OLT when receiving the remote management operation, which specifically includes the following steps:
after the ONU registers to the OLT, the OLT issues a creation message according to the ME definition before the OLT interacts with all messages of the ONU, and an instance of the ME type is created.
And the OLT issues a configuration message according to the ME definition and configures an OMCI message execution strategy.
The OLT performs some remote management operation through the OMCI.
And the ONU responds to the OLT according to the execution strategy configured by the OLT. And immediately executing and responding to the OLT execution result, or refusing to execute and responding to the OLT Busy.
Fig. 4 shows a signaling interaction flowchart between an ONU and an OLT, which includes the following steps:
step 401: the OLT creates a new definition management entity;
step 402: the ONU executes and responds to the OLT success;
step 403: the OLT configures an OMCI message execution strategy;
step 404: the ONU executes and responds to the OLT success;
step 405: the OLT executes remote management operation;
step 406: the ONU responds to the OLT according to an execution strategy configured by the OLT;
step 407: and immediately executing and responding to the OLT execution result, or delaying or refusing to execute and responding to the OLT busy.
Fourth embodiment
The embodiment relates to a GPON system, and the following Management Entity (ME) types are newly defined: a message execution policy (i.e., a remote operation execution policy in the foregoing embodiment), where the type ME is created by the OLT, and a defined attribute field indicates the OMCI message execution policy, and the OLT configures a Set message of the attribute. The OMCI message execution policy may be expressed in the form of a black and white list, as shown in table 4 below. Defining the policy consists of three parts: message characteristics (characteristics of remote management operation), conditions and strategies, wherein the message characteristics are characteristic combinations of ME types, ME attribute masks, message types and the like of OMCI messages; the condition is the ONU traffic state.
TABLE 4
| ME type | ME Attribute masking | Message type | ONU traffic status | Policy |
In this embodiment, the ME type and ME attribute mask may be legal extensions defined in or based on the ITU-T g.988 standard, with the attribute mask field only being valid when the ME type is configured as a legal value; if the ME type is not specified, the indication may be all ME types; if the ME type is specified, but no attributes are specified, the representation may be all attributes.
In this embodiment, the message type may be one of all message types defined by ITU-T G.988 standard "Table 11.2.2-1OMCImessage types".
In this embodiment, the ONU traffic state may be a service whose message characteristics need to be concerned, and the traffic state is represented in a mask form, which represents one service or a combination of multiple services. Mask form indicates, 0 indicates no operation and 1 indicates operation.
The policy may be that the ONU responds to the qualified message, and immediately executes and responds to the OLT execution result, or delays or refuses to execute and respond to the OLT Busy.
In the message execution policy involved in this implementation, an ONU contains only one instance of the management entity.
The message execution policy in this embodiment includes the following attributes: management entity instance identification (Managed entry id): the attribute represents an instance of the management entity, which has only one instance, and the field value is fixed to 0 (R, Set-by-create) (2 bytes). Policy List: the attributes are table attributes representing one or more OMCI message execution policy entries. Each entry contains seven parts, Table control, Managed entry class (management entity type), Managed entry attribute mask (management entity attribute mask), Message type (Message type), Service running status mask (Service running status mask), Policy, and Reserved.
Table control (2 bytes): this field is a Table attribute control field, meaning the Table control field in other administrative entity Table attributes of ITU-T g.988.
TABLE 5
Managed entity class (2 bytes): this field indicates the type of management entity, defined in ITU-T G.988 Table 11.2.4-1. The default value for this field is 0, indicating that this field is not used and should be ignored.
Managed entry attribute mask (2 bytes): this field indicates the attribute mask of the management entity. This field is only valid if the Managed entry class field is a legal value. The default value of this field is 0, indicating that this field is not used and should be ignored, which may be two bytes.
Message type (Message type) (1 bytes): this field indicates the message type, defined in ITU-T G.988 table 11.2.2-1, and the values outside the table are illegal values.
Service running status mask (2 bytes): this field indicates the service running status that needs to be concerned, and indicates it in a masked form (0 indicates not running, 1 indicates running), and the meaning of each Bit is shown in the following table:
TABLE 6
Policy (1 bytes): this field indicates OMCI message execution policy, 0 indicates immediate execution and response to OLT execution result, and 1 indicates refusal of execution or delayed execution and response to OLT Busy.
Reserved (2 bytes): fields are reserved.
(R, W) (directory) (12N bytes, where N is the number of entries in the table) occupies 12N bytes, with N being the number of entries.
The message execution policy in this embodiment may specifically execute the following operations:
create, delete, get, and set.
The entity should create and configure OMCI message enforcement policies before the management operations that need to be acted upon. And when the ONU receives the remote management operation, the ONU executes a strategy response OLT according to the remote management operation configured by the OLT.
The specific implementation steps and the interaction flow chart are the same as those in the third embodiment, and are not described herein again.
Fifth embodiment
The embodiment relates to an EPON system, and the following message policy attributes are newly defined: OAM messageExecute Policy: the attribute is issued by the OLT before the automatic service issuing, an attribute field is defined to represent an OAM message execution strategy, and the OLT configures the Set message of the attribute. The OAM message execution policy may be expressed in the form of a black and white list, see table 7. Defining the policy consists of three parts: message characteristics (characteristics of remote management operations), conditions and policies, wherein the message characteristics are message types of the OAM messages; the condition is the ONU traffic state.
TABLE 7
| Message type | ONU traffic status | Policy |
The message type may be one of extended operation codes (ext. opcode) defined in specifications of china telecom EPON equipment specification V3.0.
The ONU service state may be a service whose message characteristics need to be concerned and a service state, and is represented in a mask form to indicate one service or a combination of multiple services. Mask form indicates, 0 indicates no operation and 1 indicates operation.
The policy may be that the ONU reacts to the qualified message and immediately executes and responds to the OLT execution result, or refuses to execute or delays to execute and respond to the OLT onubesy (the onubesy may be defined as 0x88 according to the telecommunication specification extension), as shown in table 8 below:
TABLE 8
OAM Message execution Policy: newly defining a private Attribute, wherein the Attribute name (Attribute) is Message execution Policy, and Description (Description) is OAM Message execution Policy.
The variable (attribute or operation) code of the ONU new attribute is shown in table 9 below:
TABLE 9
An OAM message enforcement policy is defined. The format of its Variable Container (attribute or operation content description) is shown in table 10:
TABLE 10
Since the operation object of the attribute is an ONU, the instance index TLV of the management object does not need to be used. The attribute should be issued before the ONU remote management operation that needs to be acted on, and an OAM message execution policy is configured. And when the ONU receives the remote management operation, the ONU responds to the OLT according to an execution strategy configured by the OLT.
The specific implementation steps are as follows:
the ONU finishes registering to the OLT;
before an OLT issues a remote management operation, an OAM execution Policy Message OAM Message execution Policy is issued;
the OLT executes a certain remote management operation through OAM;
and the ONU responds to the OLT according to the execution strategy configured by the OLT. And immediately executing and responding to the OLT execution result, or refusing to execute and responding to the OLT onuBusy.
The flow chart of the signaling interaction between the OLT and the ONU is shown in fig. 5, and includes the following steps:
step 501: OLT configures OAM message execution strategy;
step 502: the ONU executes and responds to the OLT success;
step 503: the OLT executes remote management operation;
step 504: the ONU responds to the OLT according to an execution strategy configured by the OLT;
step 505: the ONU responds to the OLT execution result or ONUbusy.
Sixth embodiment
The embodiment relates to an EPON system message, and newly defines the following message policy attributes: OAM Message execution Policy: the attribute is issued by the OLT before the automatic service issuing, an attribute field is defined to represent an OAM message execution strategy, and the OLT configures the Set message of the attribute. The OAM message execution policy may be expressed in the form of a black and white list as shown in table 11. Defining the policy consists of three parts: message characteristics (characteristics of remote management operations), conditions, and policies. In the embodiment, the message characteristics are the combination of characteristics such as specific attribute BLV, message type of OAM message and the like; the condition is the ONU traffic state.
TABLE 11
| Specific Attribute BLV | Message type | ONU traffic status | Policy |
The specific attribute BLV may specifically relate to a BLV with specific attributes, such as RebootONU, where the BLV is 0XC90001, and is described as an operation of restarting an ONU issued by the OLT;
the message type may be specifically one of extended operation codes (ext. opcode) defined in specifications of "chinese telecommunication EPON device technical requirement V3.0";
the ONU service state may specifically be a service and a service state that the message characteristics need to be concerned, and is represented in a mask form to indicate one service or a combination of multiple services. Mask form indicates, 0 indicates no operation and 1 indicates operation.
The policy may specifically be that the ONU responds to a message meeting the condition, immediately executes and responds to the OLT execution result, or refuses to execute or delays to execute and respond to the OLT onubesy (the onubesy may be defined as 0x88 according to the telecommunication specification extension, which is defined in table 9 of the fifth embodiment).
The embodiment may be implemented as a specific BLV, such as restarting an ONU, remotely upgrading an ONU, and the like, and has very strong operability, and the specific implementation steps and the interaction flowchart are the same as those in the fifth embodiment, and are not described herein again.
Seventh embodiment
The present embodiment provides an optical line terminal, where the optical line terminal is configured to implement the execution policy issuing method for remote management operation provided in the foregoing embodiment. As shown in fig. 6, the optical line terminal 60 may specifically include the following components:
a configuration module 61, configured to configure an execution policy of a remote management operation, where the execution policy includes: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
and a communication module 62, configured to send the configured execution policy of the remote management operation to an optical network unit.
Wherein the remote management operation is characterized by: operation type and/or operation validation object.
The condition for performing the remote management operation is a detected state of the optical network unit, which may include all detectable states of the optical network unit, including but not limited to one or more of the following states:
whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state.
The manner of performing the remote management operation includes: immediate execution of the remote management operation, delayed execution of the remote management operation, or refusal to execute the remote management operation.
In an example based on the GPON system, the configuration module 61 may be specifically configured to: newly building a management entity ME, wherein the definition of the attribute field of the ME comprises the following steps: a management entity instance identification field and a policy schedule field; the management entity instance identification field is used for indicating a single instance of the management entity, and the policy list field is used for indicating a remote management operation execution mode entry of one or more ONU management control interface OMCI messages, wherein the policy list comprises: the characteristics of the remote management operation, the conditions under which the remote management operation is performed, and the manner in which the remote management operation is performed. The feature of the remote management operation may specifically include an ME type, an ME attribute mask, and a combination of message types of the OMCI message, where any one or two of the ME type, the ME attribute mask, and the combination of message types of the OMCI message may be a default; or the characteristics of the remote management operation include a message type of the OMCI message. The condition field for performing remote management operations contains a plurality of bit fields that in turn are used to represent the following: voice traffic, emergency telephony, unicast traffic, multicast traffic, triple-layer traffic, wireless traffic, peer-to-peer network P2P traffic, video traffic, digital subscriber line xDSL traffic, remote non-optical network unit management control interface, OMCI, management ONU traffic, local ONU management traffic, asynchronous transfer mode, ATM traffic, time division multiplexing mode, TDM traffic, building network premiums networks/multimedia over coax alliance, optical synchronous digital transmission network, Sdh-sonet traffic, and reserved fields.
In an example based on an EPON system, the configuration module 61 may specifically be configured to: defining a private attribute, wherein an attribute field represents an operation, administration and maintenance (OAM) message remote operation execution strategy which is described as an OAM message execution strategy; the characteristics of the remote management operation include a message type of the OAM message, or the characteristics of the remote management operation include a combination of a management object value BLV, a message type, and individual traffic type status fields of the message.
Whether based on a GPON or an EPON system, the condition field involved in this embodiment to perform remote management operations may contain a number of bytes, which in turn are used to represent the following traffic: voice service, emergency telephone, unicast service, multicast service, three-layer service, wireless service, P2P service, video service, xDSL service, remote non-OMCI/OAM management ONU service, local ONU management service, ATM service, TDM service, premium networks/MoCA service, Sdh-network service.
Eighth embodiment
The present embodiment provides an optical network unit, where the optical network unit is configured to implement the processing method for remote management operation related to the foregoing embodiments, and fig. 7 is a block diagram of a structure of the optical network unit, and as shown in fig. 7, the optical network unit includes the following components:
a communication unit 71, configured to receive a remote management operation message sent by an optical line terminal;
a processing unit 72, configured to process the received remote management operation message according to a pre-configured execution policy of the remote management operation; wherein the execution policy comprises: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed.
In a specific example, the processing unit 72 may specifically be configured to: matching the characteristics of the received remote management operation message with the characteristics of the remote management operation of the optical network unit in a pre-configured execution strategy; and when the matching is successful, the current state of the optical network unit is further acquired, the current state of the optical network unit is matched with the condition for executing the remote management operation in the pre-configured execution strategy, and when the matching is successful, the received remote management operation message is processed according to the mode for executing the remote management operation in the pre-configured execution strategy.
If any matching is unsuccessful in the two matching processes, it indicates that the execution policy of the pre-configured remote management operation is invalid for the remote management operation, so that the remote management operation is processed in a processing manner specified in the existing standard, and the detailed description of the embodiment is omitted.
The feature of the remote management operation in this embodiment is one of the following features:
the message type of the OMCI message of the optical network unit management control interface;
the management entity ME type, ME attribute mask and OMCI message type combination of OMCI message;
the message type of the operation administration maintenance OAM message;
a combination of a management object value BLV, a message length, a message type, and individual service type status fields of the message.
Ninth embodiment
The present embodiment provides a system, which includes the optical line terminal described in the seventh embodiment and the optical network unit described in the eighth embodiment, and the signaling interaction involved in the third, fourth, and fifth embodiments is completed through the system, so as to implement the relevant functions in the foregoing embodiments, and achieve the effects described in the foregoing embodiments. Since the optical line terminal and the optical network unit have been described in detail in the foregoing embodiments, this embodiment is not described again.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.
Claims (22)
1. An execution strategy issuing method for remote management operation is characterized by comprising the following steps:
configuring an execution policy of a remote management operation, the execution policy comprising: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
sending the configured execution strategy of the remote management operation to an optical network unit;
wherein the condition for performing the remote management operation is a detected state of an optical network unit; the state of the optical network unit comprises one or more of the following states: whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state; the working state of the processing set service is an operating state or a non-operating state; the manner of performing the remote management operation includes: immediate execution of the remote management operation, delayed execution of the remote management operation, or refusal to execute the remote management operation.
2. The method of claim 1, wherein the features of the remote management operation comprise: operation type and/or operation validation object.
3. The method according to any one of claims 1 to 2, wherein configuring the execution policy of the remote management operation comprises:
creating a management entity ME, wherein the attribute field of the ME comprises: a management entity instance identification field and a policy schedule field; wherein the policy schedule includes:
a characteristic field of the remote management operation, a condition field to perform the remote management operation, and a manner field to perform the remote management operation.
4. The method of claim 3, wherein the features of the remote management operation comprise:
the method comprises the steps that the optical network unit manages and controls the combination of the ME type, the ME attribute mask and the message type of an interface OMCI message, wherein any one or two of the ME type, the ME attribute mask and the message type combination of the OMCI message are default; alternatively, the first and second electrodes may be,
the characteristics of the remote management operation include a message type of the OMCI message.
5. The method of claim 3, wherein the condition field for performing the remote management operation comprises a plurality of bit fields, and wherein the plurality of bit fields are sequentially used to indicate:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-optical network unit management control interface OMCI management ONU service, local ONU management service, asynchronous transfer mode ATM service, time division multiplexing mode TDM service, architectural network premiums networks/multimedia over coax alliance MoCA service, optical synchronous digital transmission network Sdh-network service, and reserved fields.
6. The method according to any one of claims 1 to 2, wherein configuring the execution policy of the remote management operation comprises:
an attribute field for indicating an execution policy of a remote management operation of an operation administration maintenance, OAM, message is set.
7. The method of claim 6, wherein the characteristics of the remote management operation include a message type of an OAM message; alternatively, the characteristics of the remote management operation include a combination of a management object value BLV, a message type, and individual service type status fields of the message.
8. The method according to claim 6, characterized in that said conditions for performing said remote management operation comprise a plurality of bytes, said plurality of bytes being used in turn for indicating the following:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-operation management maintenance, OAM, management, ONU, local ONU, asynchronous transfer mode, ATM, TDM, building network premiums networks/multimedia over coax alliance, MoCA, optical synchronous digital transmission network, Sdh-network, and reserved fields.
9. A processing method for remote management operation is characterized by comprising the following steps:
receiving a remote management operation message sent by a light line terminal;
processing the received remote management operation message according to a pre-configured execution strategy of the remote management operation; wherein the execution policy comprises: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
wherein, processing the received remote management operation message specifically includes:
matching the characteristics of the received remote management operation message with the characteristics of the remote management operation of the optical network unit in the pre-configured execution strategy; when the matching is successful, further acquiring the current state of the optical network unit, and matching the current state of the optical network unit with the condition for executing the remote management operation in the pre-configured execution strategy; when the matching is successful, processing the received remote management operation message according to the corresponding manner of executing the remote management operation in the pre-configured execution strategy, and immediately executing or postponing the execution of the remote management operation; when the execution strategy is refused, refusing to execute the remote management operation and responding to busy; wherein the condition for performing the remote management operation is a detected state of an optical network unit; the status of the optical network unit comprises one or more of the following: whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state; and the working state of the processing set service is a running state or a non-running state.
10. The method of claim 9, wherein the remote management operation is characterized by one of the following features:
the message type of the OMCI message of the optical network unit management control interface;
the management entity ME type, ME attribute mask and OMCI message type combination of OMCI message;
the message type of the operation administration maintenance OAM message;
a combination of a management object value BLV, a message length, a message type, and individual service type status fields of the message.
11. The method of claim 10, wherein prior to receiving the remote management operation message sent by the optical line terminal, further comprising;
and receiving an execution strategy of the remote management operation sent by the optical line terminal.
12. An optical line terminal, comprising:
a configuration module configured to configure an execution policy of a remote management operation, the execution policy including: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
the communication module is used for sending the execution strategy of the configured remote management operation to an optical network unit;
wherein the condition for performing the remote management operation is a detected state of an optical network unit; the state of the optical network unit comprises one or more of the following states: whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state; the working state of the processing set service is an operating state or a non-operating state; the manner of performing the remote management operation includes: performing the remote management operation immediately, delaying performance of the remote management operation, or denying performance of the remote management operation.
13. The olt of claim 12, wherein the remote management operation is characterized by: operation type and/or operation validation object.
14. The OLT of any of claims 12 to 13, wherein the configuration module is configured to configure an execution policy of the remote management operation, and the configuration policy comprises:
newly building a management entity ME, wherein the attribute field of the ME comprises: a management entity instance identification field and a policy schedule field; wherein the policy schedule includes:
a characteristic field of the remote management operation, a condition field to perform the remote management operation, and a manner field to perform the remote management operation.
15. The olt of claim 14, wherein the remote management operation is characterized by:
the method comprises the steps that an optical network unit manages and controls the combination of the ME type, the ME attribute mask and the message type of an interface OMCI message, wherein any one or two of the combination of the ME type, the ME attribute mask and the message type of the OMCI message is/are default; alternatively, the first and second electrodes may be,
the characteristics of the remote management operation include a message type of the OMCI message.
16. The olt of claim 14, wherein the condition field to perform the remote management operation comprises a plurality of bit fields, wherein the plurality of bit fields are sequentially used to indicate:
voice service, emergency telephone, unicast service, multicast service, triple-layer service, wireless service, peer-to-peer network P2P service, video service, digital subscriber line xDSL service, remote non-optical network unit management control interface OMCI management ONU service, local ONU management service, asynchronous transfer mode ATM service, time division multiplexing mode TDM service, architectural network premiums networks/multimedia over coax alliance MoCA service, optical synchronous digital transmission network Sdh-network service, and reserved fields.
17. The OLT of any of claims 12 to 13, wherein the configuration module is configured to configure an execution policy of a remote management operation, and the execution policy comprises:
an attribute field for indicating an execution policy of a remote management operation of an operation administration maintenance, OAM, message is set.
18. The olt of claim 17, wherein the characteristics of the remote management operation include a message type of an OAM message; alternatively, the characteristics of the remote management operation include a combination of a management object value BLV, a message type, and individual service type status fields of the message.
19. The olt of claim 17, wherein the condition for performing the remote management operation comprises a plurality of bytes that in turn are used to indicate:
voice traffic, emergency telephony, unicast traffic, multicast traffic, triple-layer traffic, wireless traffic, peer-to-peer network P2P traffic, video traffic, digital subscriber line xDSL traffic, remote non-operation administration and maintenance, OAM, management, ONU, local ONU, asynchronous transfer mode, ATM, time division multiplexing, TDM, building network premium networks/multimedia over coax alliance, MoCA, optical synchronous digital transmission network, Sdh-sonet, and reserved fields.
20. An optical network unit, comprising:
the communication unit is used for receiving a remote management operation message sent by the optical line terminal;
the processing unit is used for processing the received remote management operation message according to a preset execution strategy of the remote management operation; wherein the execution policy comprises: a characteristic of the remote management operation, a condition under which the remote management operation is performed, and a manner in which the remote management operation is performed;
the processing unit processes the received remote management operation message, and specifically includes:
matching the characteristics of the received remote management operation message with the characteristics of the remote management operation of the optical network unit in the pre-configured execution strategy; when the matching is successful, further acquiring the current state of the optical network unit, and matching the current state of the optical network unit with the condition for executing the remote management operation in the pre-configured execution strategy; when the matching is successful, processing the received remote management operation message according to the mode of executing the remote management operation in the pre-configured execution strategy, and immediately executing or postponing the execution of the remote management operation; when the execution strategy is refused, refusing to execute the remote management operation and responding to busy; wherein the condition for performing the remote management operation is a detected state of an optical network unit; the state of the optical network unit comprises one or more of the following states: whether the optical network unit is in a working state for processing the set service, whether the optical network unit is in an alarm state, whether the optical network unit is in a fault state, whether the optical network unit is in a voltage unstable state, and whether the optical network unit is in a current unstable state; and the working state of the processing set service is a running state or a non-running state.
21. The onu of claim 20, wherein the remote management operation is characterized by one of the following:
the message type of the OMCI message of the optical network unit management control interface;
the management entity ME type, ME attribute mask and OMCI message type combination of OMCI message;
the message type of the operation administration maintenance OAM message;
a combination of a management object value BLV, a message length, a message type, and individual service type status fields of the message.
22. A system comprising an optical line terminal according to any of claims 12 to 19 and an optical network unit according to any of claims 20 to 21.
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| CN113923544B (en) * | 2021-09-28 | 2023-05-12 | 烽火通信科技股份有限公司 | Management method and system of standard and private OMCI service model ONU |
| CN114630216B (en) * | 2022-05-17 | 2022-08-23 | 广州宇洪科技股份有限公司 | ONU (optical network Unit) equipment and PON (Passive optical network) system with autonomous service selection function |
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