CN108574886B - Service management control method, OLT and ONU in passive optical network system - Google Patents

Service management control method, OLT and ONU in passive optical network system Download PDF

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CN108574886B
CN108574886B CN201710131928.7A CN201710131928A CN108574886B CN 108574886 B CN108574886 B CN 108574886B CN 201710131928 A CN201710131928 A CN 201710131928A CN 108574886 B CN108574886 B CN 108574886B
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optical network
network unit
service management
state
management message
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CN108574886A (en
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黄启银
张阳春
韦涛
姬汉贵
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • 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
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring

Abstract

A service management control method in a passive optical network system comprises the following steps: the optical line terminal receives the registration of the optical network unit; and the optical line terminal sends a service management message to the optical network unit, wherein the service management message carries a condition for executing the service management message. The method of the scheme overcomes the defect that the prior passive optical network system can interrupt the service which is experienced by the user when executing the remote management operation, and improves the reputation of the user to the product experience.

Description

Service management control method, OLT and ONU in passive optical network system
Technical Field
The embodiment of the invention relates to the field of a Passive Optical Network (PON), in particular to a service management control method in a passive optical network system, an OLT and an ONU.
Background
The 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 diagram of a PON system structure. 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 reachable ONU. For better control and management of the multiple ONUs that are dropped, Gigabit Passive Optical Networks (GPONs) provide management and control interfaces (OMCIs) and Ethernet Passive Optical Networks (EPONs) provide operation, administration, and maintenance mechanisms (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 ONU, such as Internet access (Internet), Internet television (IPTV), wireless Internet access (WLAN), etc., the OLT performs a remote Reboot (Reboot) management operation at this time, and the ONU immediately performs the remote Reboot management operation, which interrupts the services of the user, resulting in poor user experience.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a service management control method, an OLT and an ONU in a passive optical network system, so as to avoid that the ONU executes immediately and interrupts a service of a user when the OLT executes a remote management operation, which results in poor user experience.
A service management control method in a passive optical network system comprises the following steps:
the optical line terminal receives the registration of the optical network unit;
and the optical line terminal sends a service management message to the optical network unit, wherein the service management message carries a condition for executing the service management message.
Optionally, the condition for executing the service management message includes: whether the optical network unit is in a designated state.
Optionally, whether the optical network unit is in the designated state includes any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
Optionally, the service management message includes all types of messages supported by the passive optical network system.
Optionally, the service management message includes any one of the following messages: remote activation version information, management information base reset information and remote restart information.
Optionally, the passive optical network system includes: gigabit passive optical network systems or ethernet passive optical network systems.
An optical line terminal comprising:
the registration module is used for receiving the registration of the optical network unit;
and the sending module is used for sending a service management message to the optical network unit, and carrying a condition for executing the service management message.
Optionally, the condition for executing the service management message includes: the optical network unit is in a designated state.
Optionally, whether the optical network unit is in the designated state includes any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
Optionally, the service management message includes all types of messages supported by the passive optical network system, or includes any one of the following messages: remote activation version information, management information base reset information and remote restart information.
A service management control method in a passive optical network system comprises the following steps:
an optical network unit receives a service management message sent by an optical line terminal and carries a condition for executing the service management message;
the optical network unit detects whether a condition for executing the service management message is met, and if the condition is met, an instruction for executing the service management message is executed; and if the condition is not met, rejecting the instruction for executing the service management message.
Optionally, the condition for the onu to execute the service management message includes: whether the optical network unit is in a designated state;
if the optical network unit is not in the specified state, the optical network unit executes the instruction of the service management message, and if the optical network unit is in the specified state, the optical network unit refuses to execute the instruction of the service management message.
Optionally, whether the optical network unit is in the designated state includes any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
Optionally, after the optical network unit executes the instruction of the service management message, the method further includes that the optical network unit returns an executed response message to the optical line terminal;
after the optical network unit refuses to execute the instruction of the service management message, the method further includes:
and the optical network unit returns a busy response message to the optical line terminal.
Optionally, the passive optical network system includes: gigabit passive optical network systems or ethernet passive optical network systems.
An optical network unit comprising:
the receiving module is used for receiving a service management message sent by a light line terminal and carrying a condition for executing the service management message;
the execution module is used for detecting whether the condition for executing the service management message is met, and if the condition is met, executing the instruction of the service management message; and if the condition is not met, rejecting the instruction for executing the service management message.
Optionally, the condition for the onu to execute the service management message includes: whether the optical network unit is in a designated state;
the execution module is specifically configured to execute the instruction of the service management message if it is detected that the optical network unit is not in the designated state, and reject to execute the instruction of the service management message if the optical network unit is in the designated state.
Optionally, whether the optical network unit is in the designated state includes any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
Optionally, the execution module, after executing the instruction of the service management message, is further configured to return an executed response message to the optical line terminal; after the instruction of refusing to execute the service management message, the method further comprises the following steps: and returning a busy response message to the optical line terminal.
To sum up, the embodiments of the present invention provide a service management control method, an OLT, and an ONU in a passive optical network system, which overcome the defect that the existing passive optical network system interrupts the service that a user is experiencing when performing remote management operation, and improve the reputation of the user for product experience.
Drawings
FIG. 1 is a schematic diagram of a PON system;
fig. 2 is a flowchart of a method for controlling service management in a passive optical network system according to a first embodiment of the present invention;
fig. 3 is a flowchart of a service management control method in a passive optical network system according to a second embodiment of the present invention;
fig. 4 is an interaction flowchart of performing extended management on an ONU with respect to an existing message in a GPON system according to a third embodiment of the present invention;
fig. 5 is a schematic diagram of an extended oadmpdu frame format for software upgrade for an EPON system according to a sixth embodiment of the present invention;
fig. 6 is a schematic diagram of an OLT according to a seventh embodiment of the present invention;
fig. 7 is a schematic diagram of an ONU according to an eighth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Example one
Fig. 2 is a flowchart of a service management control method in a passive optical network system according to an embodiment of the present invention, and as shown in fig. 2, the method of the embodiment includes the following steps:
step 11, the OLT receives the registration of the ONU;
and step 12, the OLT sends a service management message to the ONU, and the service management message carries a condition for executing the service management message.
Wherein the condition for executing the service management message comprises: whether the optical network unit is in a designated state.
Whether the optical network unit is in the specified state includes but is not limited to any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
The service management message includes but is not limited to any of the following messages: remote activation version information, management information base reset information and remote restart information.
The method of the embodiment is suitable for the passive optical network system, in particular suitable for a gigabit passive optical network system or an Ethernet passive optical network system.
Example two
Fig. 3 is a flowchart of a service management control method in a passive optical network system according to an embodiment of the present invention, and as shown in fig. 3, the method of the embodiment includes:
step 21, receiving a service management message sent by the OLT by the ONU, wherein the service management message carries a condition for executing the service management message;
step 22, the ONU detects whether a condition for executing the service management message is satisfied, and if the condition is satisfied, executes an instruction of the service management message; and if the condition is not met, rejecting the instruction for executing the service management message.
In an optional embodiment, the condition for the ONU to execute the service management message includes: whether the ONU is in a designated state;
and if the ONU is not in the specified state, executing the instruction of the service management message, and if the ONU is in the specified state, refusing to execute the instruction of the service management message.
In an optional embodiment, after the ONU executes the instruction of the service management message, the ONU further returns an executed response message to the OLT;
after the ONU refuses to execute the instruction of the service management message, the method further includes:
and the ONU returns a busy response message to the OLT.
The business management control method in the passive optical network system of the embodiment of the invention controls the ONU to selectively execute the remote management command by expanding the management message, wherein the message body contains the condition for executing the management message. The condition is an ONU-specific state and is not limited to an ONU traffic state. The ONU inquires the local state according to the condition of the message body, and executes management operation when the local state of the ONU meets the condition; and when the answer is not satisfied, refusing to execute the management operation and responding to busy.
Compared with the prior art, the method of the embodiment of the invention can be selectively executed according to the specific state of the ONU when executing certain remote management operation which influences the user experience; instead of being executed immediately, the service which the user is experiencing is interrupted, and the reputation of the user on the product experience is improved.
The method of the present invention will be described in detail below with reference to specific examples.
Third embodiment, the MIB Reset message is expanded in the GPON system
The MIB Reset Message in a basic Message type (A.3Baseline Message set) described by ITU-T (International telecommunication Union telecommunication standards office) G.988 is extended as follows, wherein the Message contents are newly added with a service area in progress field (bytes 9-10) to represent the condition which needs to be concerned when the Message is executed, and the condition of the embodiment is the service which is currently operated by the ONU. The MIB Reset message extension method in the extended message type (a.2extended message set) is similar thereto.
A.3.17MIB reset
Figure BDA0001240274940000071
Figure BDA0001240274940000081
The specific implementation steps are shown in fig. 4, and include the following steps:
and step 101, completing the registration of the ONU to the OLT.
Step 102, the OLT issues the MIB Reset message according to the MIB Reset message defined above, where bytes 9 and 10(Services area in progress) of the message body represent the service concerned by the operation.
Step 103, after receiving the MIB Reset message, the ONU queries whether the service specified in the MIB Reset message is running.
And step 104, if the service specified in the MIB Reset message is not operated, immediately executing the instruction of the MIB Reset message and responding to the execution result of the OLT, otherwise, refusing to execute and responding to Busy (Busy) of the OLT.
Fourth embodiment, extension of rebot message in GPON system
A Reboot Message in a basic Message type (A.3Baseline Message set) described by ITU-T G.988 is expanded as follows, Message contents are added with a service area in progress field (bytes 10-11) to indicate conditions which need to be concerned when the Message is executed, and the conditions of the embodiment are Services which are currently operated by the ONU. The Reboot message extension method in the extended message type (a.2extended message set) is similar to this.
A.3.35Reboot
Figure BDA0001240274940000091
Figure BDA0001240274940000101
The specific implementation steps are as follows:
and step 201, completing the registration of the ONU to the OLT.
In step 202, the OLT issues a rebot message according to the rebot message defined above, and bytes 10 and 11(Services area in progress) of the message body represent the service concerned by the operation.
Step 203, after receiving the rebot message, the ONU queries whether the service specified in the rebot message is running.
And step 204, if the service specified in the Reboot message is not operated, immediately executing and responding to the OLT execution result, otherwise, refusing to execute and respond to the OLT Busy.
Example five extension of rebot messages in an EPON system
The operation of the Reboot ONU in the technical requirement V3.0 of the chinese telecommunication EPON device is expanded as follows, a Variable Width field is newly added and 16 fields are newly added (indicating a preset condition that needs to be concerned about executing the message, 0 is that the service is not currently running, is not concerned, 1 is that the current service is running, is concerned), and the preset condition of this implementation is that the ONU is currently running. The extension method of other extension message types is similar to the Reboot ONU message extension method.
RebootONU Variable descriptor format
Figure BDA0001240274940000111
Figure BDA0001240274940000121
The operation object of the operation is an ONU, and the Type-Length-Value (TLV) of the instance index of the management object is not needed.
The specific implementation steps are as follows:
step 301, completing the registration of the ONU to the OLT;
step 302, the OLT issues a RebootONU message according to the RebootONU message defined above, and the Variable Value content of the message body represents the service concerned by the operation;
step 303, after receiving the rebootONU message, the ONU inquires whether the service specified in the rebootONU message is running;
step 304, if the service specified in the RebootONU message is not running, immediately executing and responding to the OLT execution result, otherwise, refusing to execute and respond to the OLT onubesy (the onubesy may be defined as 0x88 according to the telecommunication specification extension), as shown in the following table:
Figure BDA0001240274940000122
Figure BDA0001240274940000131
sixth embodiment, the extension of version upgrade message by EPON system
When the ONU encounters a relatively serious fault and needs to be upgraded urgently to solve the problem, the current method mostly selects about 2 points in the morning for upgrading in consideration of the influence on users. The present embodiment plans to expand the upgrade message, add the concerned services, and add the implementation policy. When the ONU equipment of a certain user is not in use, the ONU equipment can be selected to be upgraded at any time. This method can solve the problem well. The format of the OAMPDU frame of the software upgrade defined by China telecom specification is shown in FIG. 4:
as shown in fig. 5, the dashed box is the expanded content. The Care for business field represents the business that needs to be concerned in the upgrade message, a mask is used to represent the common ONU business, 0 represents running, 1 represents non-running, and when the business is running and refuses, the OLT onbusy is replied, which is described in detail as follows:
Figure BDA0001240274940000132
EXAMPLE seven
Fig. 6 is a schematic diagram of an OLT according to an embodiment of the present invention, and as shown in fig. 6, the OLT according to the embodiment includes:
a registration module 601, configured to accept registration of an ONU;
a sending module 602, configured to send a service management message to the ONU, where the service management message carries a condition for executing the service management message.
Wherein the condition for executing the service management message comprises: the ONU is in a designated state.
The ONU is in a specified state including, but not limited to, any one of the following states: the state whether the ONU executes the designated service or not, the state whether the ONU has an alarm or not, the state whether the ONU has a fault or not, the state whether the ONU voltage is stable or not, and the state whether the ONU current is stable or not.
In addition to the above state, other states are also possible as long as the state that the ONU can detect can be set as the execution condition for executing the remote management control command.
Example eight
Fig. 7 is a schematic diagram of an ONU according to an embodiment of the present invention, and as shown in fig. 7, the ONU according to this embodiment includes:
a receiving module 701, configured to receive a service management message sent by an optical line terminal, where the service management message carries a condition for executing the service management message;
an executing module 702, configured to detect whether a condition for executing the service management message is met, and if the condition is met, execute an instruction of the service management message; and if the condition is not met, rejecting the instruction for executing the service management message.
In an optional embodiment, the condition for the onu to execute the service management message includes: whether the optical network unit is in a designated state;
the executing module 702 is specifically configured to execute the instruction of the service management message if it is detected that the optical network unit is not in the designated state, and reject to execute the instruction of the service management message if the optical network unit is in the designated state.
In an optional embodiment, the executing module 702, after executing the instruction of the service management message, is further configured to return an executed response message to the optical line terminal; after the instruction of refusing to execute the service management message, the method further comprises the following steps: and returning a busy response message to the optical line terminal.
The OLT of the embodiment of the invention controls the ONU to selectively execute the remote management command by expanding the management message, wherein the message body contains the condition for executing the management message.
Compared with the prior art, the method of the embodiment of the invention can be selectively executed according to the specific state of the ONU when executing certain remote management operation which influences the user experience; instead of being executed immediately, the service which the user is experiencing is interrupted, and the reputation of the user on the product experience is improved.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The foregoing is only a preferred embodiment of the present invention, and naturally there are many other embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the scope of the appended claims.

Claims (11)

1. A service management control method in a passive optical network system comprises the following steps:
the optical line terminal receives the registration of the optical network unit;
the optical line terminal sends a service management message to the optical network unit, wherein the service management message carries a condition for executing the service management message; wherein the condition for executing the service management message comprises: whether the optical network unit is in a designated state; whether the optical network unit is in the specified state or not comprises any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
2. The traffic management control method according to claim 1, characterized in that:
the service management message includes all types of messages supported by the passive optical network system.
3. The traffic management control method according to claim 1, characterized in that:
the service management message comprises any one of the following messages: remote activation version information, management information base reset information and remote restart information.
4. The traffic management control method according to claim 1, characterized in that:
the passive optical network system includes: gigabit passive optical network systems or ethernet passive optical network systems.
5. An optical line terminal, comprising:
the registration module is used for receiving the registration of the optical network unit;
a sending module, configured to send a service management message to the optical network unit, where the service management message carries a condition for executing the service management message; wherein the condition for executing the service management message comprises: whether the optical network unit is in a designated state; whether the optical network unit is in the specified state or not comprises any one of the following states: the state of whether the optical network unit executes the designated service, the state of whether the optical network unit generates an alarm, the state of whether the optical network unit generates a fault, the state of whether the voltage of the optical network unit is stable, and the state of whether the current of the optical network unit is stable.
6. The optical line terminal of claim 5, wherein:
the service management message comprises all types of messages supported by the passive optical network system, or comprises any one of the following messages: remote activation version information, management information base reset information and remote restart information.
7. A service management control method in a passive optical network system comprises the following steps:
an optical network unit receives a service management message sent by an optical line terminal and carries a condition for executing the service management message; wherein the condition for the optical network unit to execute the service management message includes: whether the optical network unit is in a designated state; whether the optical network unit is in the specified state or not comprises any one of the following states: the state of whether the optical network unit executes the designated service, whether the optical network unit has an alarm state, whether the optical network unit has a fault state, whether the voltage of the optical network unit is stable, and whether the current of the optical network unit is stable;
the optical network unit detects whether the optical network unit is in the specified state, and if the optical network unit is not in the specified state, the optical network unit executes the instruction of the service management message; if the specified state is existed, the instruction of executing the service management message is refused.
8. The traffic management control method according to claim 7, wherein:
after the optical network unit executes the instruction of the service management message, the optical network unit also returns an executed response message to the optical line terminal;
after the optical network unit refuses to execute the instruction of the service management message, the method further includes:
and the optical network unit returns a busy response message to the optical line terminal.
9. The traffic management control method according to claim 7, wherein:
the passive optical network system includes: gigabit passive optical network systems or ethernet passive optical network systems.
10. An optical network unit, comprising:
the receiving module is used for receiving a service management message sent by a light line terminal and carrying a condition for executing the service management message; wherein the condition for the optical network unit to execute the service management message includes: whether the optical network unit is in a designated state; whether the optical network unit is in the specified state or not comprises any one of the following states: the state of whether the optical network unit executes the designated service, whether the optical network unit has an alarm state, whether the optical network unit has a fault state, whether the voltage of the optical network unit is stable, and whether the current of the optical network unit is stable;
the execution module is used for detecting whether the optical network unit is in the specified state, and if the optical network unit is not in the specified state, executing the instruction of the service management message; if the specified state is existed, the instruction of executing the service management message is refused.
11. The optical network unit of claim 10, wherein:
the execution module is further configured to return an executed response message to the optical line terminal after executing the instruction of the service management message; after the instruction of refusing to execute the service management message, the method further comprises the following steps: and returning a busy response message to the optical line terminal.
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