WO2017185238A1 - 主备倒换控制方法和相关装置与系统 - Google Patents

主备倒换控制方法和相关装置与系统 Download PDF

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Publication number
WO2017185238A1
WO2017185238A1 PCT/CN2016/080248 CN2016080248W WO2017185238A1 WO 2017185238 A1 WO2017185238 A1 WO 2017185238A1 CN 2016080248 W CN2016080248 W CN 2016080248W WO 2017185238 A1 WO2017185238 A1 WO 2017185238A1
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vrrp gateway
group
pon
vrrp
primary
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PCT/CN2016/080248
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English (en)
French (fr)
Inventor
迟菲
胡海涛
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华为技术有限公司
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Priority to CN201680076822.5A priority Critical patent/CN108432157B/zh
Priority to PCT/CN2016/080248 priority patent/WO2017185238A1/zh
Publication of WO2017185238A1 publication Critical patent/WO2017185238A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems

Definitions

  • the present invention relates to the field of optical communication technologies, and particularly relates to an active/standby switching control method and related devices and systems.
  • Passive Optical Network (PON) technology is a point-to-multipoint optical fiber transmission and access technology.
  • the downlink generally adopts the broadcast mode
  • the uplink generally adopts the time division multiple access method, and can flexibly form a topology structure such as a tree type, a star type, and a bus type.
  • the PON includes an optical network unit (ONU, Optical Network Unit) on the user side, an optical distribution network, and an optical line terminal (OLT).
  • Passive means that the optical distribution network (ODN) does not contain any active electronic devices and electronic power sources, and is composed of passive components such as a splitter.
  • the ONU provides a user-side interface for the PON. If the ONU directly provides a user port function (for example, an Ethernet user port for personal computer access), the ONU may also be referred to as an optical network terminal (ONT, Optical Network Terminal). ).
  • the ONUs mentioned below refer to ONUs and ONTs unless otherwise specified.
  • the ODN connects the OLT and the ONU for distributing or multiplexing signals between the OLT and the ONU.
  • the OLT provides a network side interface for the PON, and the OLT connects one or more ODNs.
  • the ONU and the OLT are single-homed.
  • the ONU is dual-homed to the two OLTs through the optical splitter to protect the PON link and the OLT.
  • a pair of PON ports respectively located on the two OLTs may be configured as one PON protection group, wherein one PON protection group includes one primary PON port and one standby PON port.
  • One PON protection group corresponds to two PON links, one is the primary PON link (the PON link corresponding to the primary PON port), and the other is the standby PON link (the PON link corresponding to the standby PON port).
  • the primary PON link corresponding to a PON protection group fails, the corresponding traffic is switched to the standby PON link corresponding to the PON protection group. After the switching, the standby PON link switches the primary PON link, and the previous primary The PON link is switched to the standby PON link, that is, the active/standby switchover of the PON protection group.
  • the standby PON link switches the primary PON link, and the previous primary The PON link is switched to the standby PON link, that is, the active/standby switchover of the PON protection group.
  • an OLT fails, all the PON links on the OLT are faulty, and all traffic on the faulty OLT can be switched to another OLT, so as to ensure that large-area services do not occur. Interrupt, this technology is PON dual-homing protection technology.
  • the uplink port of the OLT is connected to the downlink port of the Layer 3 gateway (L3 gateway).
  • the L3 gateway facilitates redundant backup by running the Virtual Router Redundancy Protocol (VRRP).
  • VRRP Virtual Router Redundancy Protocol
  • the L3 gateway running VRRP can be referred to as a VRRP gateway.
  • the two VRRP gateways can be configured as one VRRP gateway group.
  • An active/standby switchover can be performed between two VRRP gateways in a VRRP gateway group, that is, one active VRRP gateway and one standby VRRP gateway.
  • one VRRP gateway group can be associated with one or more PON protection groups.
  • the state of the OLT connected to the downlink port of the primary VRRP gateway in the VRRP gateway group is first monitored, and only the connected OLT of the downlink port of the primary VRRP gateway is usually monitored.
  • the master/slave switchover of the VRRP gateway group is performed only when the fault occurs completely.
  • the embodiments of the present invention provide a PON communication method, a related device, and a PON, so as to improve link utilization efficiency and increase data transmission rate between PON devices in a PON.
  • the embodiment of the present invention provides an active/standby switching control method and related devices and systems, so as to enhance the rationality of the triggering mechanism of the active/standby switchover of the VRRP gateway group, and reduce the probability of occurrence of the service quality caused by packet loss.
  • the first aspect of the embodiments of the present invention provides an active/standby switching control method.
  • the first VRRP gateway in the VRRP gateway group collects the working status information of the PON protection group associated with the VRRP gateway group, and determines whether the active/standby switching conditions of the VRRP gateway group are determined according to the collected working state information of the PON protection group. After the VRRP gateway group is configured to perform the active/standby switchover, the master/slave switchover of the VRRP gateway group is performed.
  • the first VRRP gateway is a primary VRRP gateway or a standby VRRP gateway in the VRRP gateway group.
  • the working state information of the PON protection group may relate, for example, to the distribution of the primary PON port and/or the standby PON port of the PON protection group (ie, the distribution of the primary PON link and the backup PON link corresponding to the PON protection group) And/or information related to the working status of the PON protection group, such as the traffic rate of the primary PON link and/or the standby PON link corresponding to the PON protection group.
  • the primary VRRP gateway or the used VRRP gateway in the VRRP gateway group can be based on the working status information of the PON protection group associated with the VRRP gateway group collected from the OLT connected to its downlink port. And determining whether to perform an active/standby switchover of the VRRP gateway group. That is to say, the change of the working status of the corresponding PON protection group may trigger the active/standby switchover of the VRRP gateway group, and the change of the working state of the PON protection group may be caused by the active/standby switchover of the PON protection group.
  • the master/slave switchover of the VRRP gateway group can trigger the master/slave switchover of the VRRP gateway group. This helps reduce the overload probability of the direct link of the two VRRP gateways in the VRRP gateway group. This makes the active/standby switchover triggering mechanism of the VRRP gateway group in the above example more reasonable, which is beneficial to reduce the probability of occurrence of the service quality caused by packet loss.
  • the first VRRP gateway collects the working status information of the PON protection group associated with the VRRP gateway group, where the first VRRP gateway receives: The working status information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs, and/or the first VRRP gateway may receive the backup VRRP gateway in the VRRP gateway group.
  • Working status information of the PON protection group is the primary VRRP gateway in the VRRP gateway group.
  • collecting the working status information of the PON protection group associated with the VRRP gateway group may include: the first VRRP gateway may receive the The working status information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs, and/or the first VRRP gateway may receive the information sent by the primary VRRP gateway in the VRRP gateway group. The working status information of the PON protection group.
  • receiving the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs includes: receiving, according to the created control plane link, the association with the VRRP gateway group The working state information of the PON protection group sent by the optical line terminal to which the PON protection group belongs.
  • the VRRP gateway and the optical line terminal exchange PON protection by creating a control plane link.
  • the working status information of the protection group is beneficial to realize the effective exchange of the working status information of the PON protection group in a relatively real-time and convenient manner.
  • a second aspect of the embodiments of the present invention provides an active/standby switching control apparatus, including a collecting unit, a determining unit, and a control unit.
  • the collecting unit is configured to collect working state information of the PON protection group of the passive optical network associated with the VRRP gateway group.
  • the determining unit is configured to determine, according to the collected working state information of the PON protection group, whether the active/standby switching condition of the VRRP gateway group is met.
  • the control unit is configured to perform an active/standby switchover of the VRRP gateway group if the determining unit determines that the active/standby switchover condition of the VRRP gateway group is met.
  • the active/standby switchover control device may be a primary VRRP gateway or a standby VRRP gateway in the VRRP gateway group.
  • the active/standby switchover control device may be deployed in the primary VRRP gateway or the standby VRRP gateway in the VRRP gateway group.
  • the collecting unit may be specifically configured to: receive the working state information of the PON protection group sent by the optical line terminal to which the PON protection group that is associated with the VRRP gateway group belongs, or receive the VRRP gateway group The working status information of the PON protection group sent by the standby VRRP gateway, or the working status information of the PON protection group sent by the primary VRRP gateway in the VRRP gateway group.
  • the collecting unit receiving the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs includes: receiving and the VRRP gateway based on the created control plane link.
  • the working state information of the PON protection group sent by the optical line terminal to which the PON protection group to which the group belongs is associated.
  • a third aspect of the embodiments of the present invention provides another active/standby switching control apparatus, including a communication interface and a processor.
  • the communication interface is configured to collect working state information of the passive optical network PON protection group associated with the virtual routing redundancy protocol VRRP gateway group.
  • the processor is configured to determine, according to the collected working state information of the PON protection group, whether the active/standby switching condition of the VRRP gateway group is met, and if the active/standby switching condition of the VRRP gateway group is determined to be satisfied, The active/standby switchover of the VRRP gateway group.
  • the communication interface may be specifically configured to receive the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs, or receive the VRRP gateway group.
  • the working status of the PON protection group sent by the standby VRRP gateway And receiving information about the working status of the PON protection group sent by the primary VRRP gateway in the VRRP gateway group.
  • the communication interface is configured to receive, according to the created control plane link, the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs.
  • the VRRP gateway and the optical line terminal exchange working state information of the PON protection group by creating a control plane link, which is beneficial to realizing the effective exchange of the working state information of the PON protection group in real time and conveniently.
  • the working state information of the PON protection group associated with the VRRP gateway group includes, for example, the following information. At least one of: a number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group, a number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, and the VRRP The number of alternate PON links associated with the alternate VRRP gateway in the gateway group, the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group, and associated with the alternate VRRP gateway in the VRRP gateway group The sum of the traffic rates of the primary PON link and the traffic rate of the primary PON link associated with the primary VRRP gateway in the VRRP gateway group.
  • the active/standby switching condition of the VRRP gateway group may include, for example, at least one of the following conditions:
  • the first condition the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group exceeds a first threshold.
  • the proportion of the primary PON link associated with the standby VRRP gateway in the VRRP gateway group is greater than the second threshold relative to the total number of primary PON links associated with the VRRP gateway group.
  • the second condition the number of standby PON links associated with the primary VRRP gateway in the VRRP gateway group exceeds a third threshold.
  • the proportion of the number of spare PON links associated with the primary VRRP gateway in the VRRP gateway group relative to the total number of alternate PON links associated with the VRRP gateway group exceeds a fourth threshold.
  • the third condition the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group is less than a fifth threshold. Or, it is related to the primary VRRP gateway in the VRRP gateway group. The proportion of the associated primary PON link is less than the sixth threshold relative to the total number of primary PON links associated with the VRRP gateway group.
  • the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than a seventh threshold.
  • the number of spare PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than the eighth threshold relative to the total number of used PON links associated with the VRRP gateway group.
  • a fifth condition the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group exceeds the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • a sixth condition the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • the seventh condition is that the sum of the traffic rates of the active PON links associated with the standby VRRP gateways in the VRRP gateway group exceeds a ninth threshold. Or the sum of the traffic rate of the primary PON link associated with the standby VRRP gateway in the VRRP gateway group is greater than the sum of the traffic rates of all the primary PON links associated with the VRRP gateway group. Ten thresholds.
  • the eighth condition is that the sum of the traffic rates of the active PON links associated with the primary VRRP gateway in the VRRP gateway group is less than the eleventh threshold. Or the sum of the traffic rate of the primary PON link associated with the primary VRRP gateway in the VRRP gateway group is less than the sum of the traffic rates of all the primary PON links associated with the VRRP gateway group. At the twelfth threshold.
  • a ninth condition the sum of the traffic rates of the primary PON links associated with the alternate VRRP gateways in the VRRP gateway group exceeds the primary PON links associated with the primary VRRP gateways in the VRRP gateway group The sum of the flow rates.
  • the tenth condition the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the active VRRP gateway in the VRRP gateway group is smaller than the primary PON associated with the standby VRRP gateway in the VRRP gateway group. The sum of the traffic rates of the links.
  • the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the active VRRP gateway in the VRRP gateway group is greater than the primary PON link associated with the standby VRRP gateway in the VRRP gateway group.
  • the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the active VRRP gateway in the VRRP gateway group is greater than the primary PON link associated with the standby VRRP gateway in the VRRP gateway group.
  • the quotient obtained by summing the traffic rates of the primary PON link is greater than the fourteenth threshold.
  • the fourteenth threshold may be equal to 75%, 80%, 86%, 90%, 95%, 92%, or other values.
  • the thirteenth threshold may be equal to 100 Mbps, 30 Mbps, 80 Mbps, 500 Mbps, or other values.
  • the twelfth threshold can be equal to 35%, 40%, 44%, 50%, 20%, 48%, or other values.
  • the eleventh threshold may be equal to 10 Mbps, 5 Mbps, 90 Mbps, 400 Mbps, or other values.
  • the tenth threshold can be equal to 50%, 55%, 56%, 60%, 65%, 68%, 70%, or other value.
  • the ninth threshold may be equal to 120 Mbps, 30 Mbps, 90 Mbps, 1024 Mbps, or other values.
  • the eighth threshold can be equal to 35%, 41%, 45%, 50%, 20%, 49%, 30%, or other values.
  • the seventh threshold can be equal to 5, 8, 10, 3, 9, or other values.
  • the sixth threshold may be equal to 35%, 42%, 45%, 50%, 20%, 49%, 31%, or other value.
  • the fifth threshold can be equal to 5, 8, 10, 4, 9, or other values.
  • the fourth threshold can be equal to 50%, 55%, 56%, 61%, 65%, 68%, 70%, or other value.
  • the third threshold can be equal to 9, 10, 13, 7, 8, or other values.
  • the second threshold can be equal to 50%, 55%, 56%, 61%, 65%, 68%, 70%, or other value.
  • the first threshold can be equal to 9, 11, 13, 7, 8, or other values.
  • a fourth aspect of the embodiments of the present invention provides a computer readable storage medium storing program code for active/standby switching control.
  • the program code includes instructions for performing the method in the first aspect.
  • the fifth aspect of the embodiments of the present invention further provides an active/standby switching control apparatus.
  • the apparatus includes a unit capable of performing the method performed by the first VRRP gateway in the first aspect.
  • a fifth aspect of the embodiments of the present invention provides a communication system, including:
  • the VRRP gateway group wherein any one of the VRRP gateways in the VRRP gateway group may be deployed with any one of the active/standby switching control devices provided by the embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention
  • FIG. 1-b and FIG. 1 - c are schematic diagrams of changes in a traffic path according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for controlling an active/standby switchover according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of another active/standby switchover control method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of another active/standby switchover control method according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of another active/standby switchover control method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of an active/standby switchover control apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of another active/standby switchover control apparatus according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • Embodiments of the present invention provide an active/standby switching control method and related devices and systems.
  • Figure 1-a shows the architecture of a joint deployment of a PON dual-protocol architecture and a VRRP gateway.
  • an ONU is dual-homed to two OLTs through an optical splitter to protect the PON link and the OLT.
  • a pair of PON ports respectively located on the two OLTs are configured as one PON protection group.
  • a PON protection group includes a primary PON port and a standby PON port.
  • One PON protection group corresponds to two PON links, one is the primary PON link (that is, the PON link corresponding to the primary PON port), and the other is the standby PON link (the PON link corresponding to the standby PON port).
  • the corresponding traffic is switched to the standby PON link corresponding to the PON protection group.
  • the standby PON link switches the active PON link, and the previous active PON link is switched to the standby PON link, that is, the active/standby switchover of the PON protection group.
  • an OLT fails, it is equivalent to the PON link failure on the OLT. All traffic on the faulty OLT can be switched to another OLT, so as to ensure that no large-area service interruption occurs.
  • the uplink port of the OLT is connected to the VRRP gateway, and the two VRRP gateways are configured as one VRRP gateway group.
  • An active/standby switchover can be performed between two VRRP gateways in a VRRP gateway group, that is, one active VRRP gateway and one standby VRRP gateway.
  • a VRRP gateway group can be associated with one or more PON protection groups.
  • An example of an OLT in Figure 1-a includes three PONs. Port, so the VRRP gateway group is associated with three PON protection groups.
  • one OLT can also include more or fewer PON ports, and the VRRP gateway group can also be associated with more or fewer PON protection groups.
  • the inventors of the present invention conducted a large amount of research and practice through conventional techniques, and found that the deep reason that the quality of the service is affected by packet loss often occurs in the conventional technology. Whether the active/standby switchover of the PON protection group in the conventional technology depends on the working state of the PON link or the PON port. It is assumed that the primary PON link corresponding to a PON protection group B1 is associated with the primary VRRP gateway in the VRRP gateway group. When the active/standby switchover occurs in the PON protection group B1, the corresponding traffic is switched from the failed primary PON link to The backup PON link is the active/standby switchover of the PON protection group B1.
  • FIG. 1-b and FIG. 1-c the dotted lines of FIG. 1-b and FIG. 1-c indicate the flow path, and it is assumed that the flow path original state is illustrated by the example of FIG. 1-b.
  • Figure 1-2 shows the status of the traffic path after the active/standby switchover of some PON protection groups.
  • the OLT is not completely faulty because the OLT connected to the downlink port of the primary VRRP gateway is not completely faulty.
  • the gateway group still does not perform the active/standby switchover.
  • the basic reason for the above-mentioned service quality is that the traditional trigger mechanism of the active/standby switchover of the VRRP gateway group is less scientific. Therefore, the embodiment of the present application seeks to improve the rationality of the trigger mechanism for the active/standby switchover of the VRRP gateway group. It is desirable to reduce the probability of occurrence of a situation in which the quality of the service is affected by packet loss.
  • FIG. 2 is a schematic flowchart diagram of an active/standby switching control method according to an embodiment of the present invention.
  • an active/standby switching control method provided by the embodiment of the present invention may include:
  • the optical line terminal OLT connected to the downlink port of the primary VRRP gateway in the VRRP gateway group sends the working status information of the PON protection group associated with the VRRP gateway group to the primary VRRP gateway.
  • the PON protection group associated with the VRRP gateway group may have one or more.
  • the primary VRRP gateway receives the working status information of the PON protection group that is associated with the VRRP gateway group that is sent by the OLT that is connected to the downlink port of the primary VRRP gateway, and the primary VRRP gateway receives the The working status information of the PON protection group determines whether the active/standby switching condition of the VRRP gateway group is met.
  • a control plane link can be created between the OLT connected to the downlink port of the primary VRRP gateway and the primary VRRP gateway, and the primary VRRP gateway can pass the control plane link. And receiving, by the optical line terminal connected to the downlink port of the primary VRRP gateway, working state information of the PON protection group associated with the VRRP gateway group.
  • the working status information of the PON protection group may relate to the distribution of the primary PON port and/or the standby PON port of the PON protection group (that is, the distribution of the primary PON link and the backup PON link corresponding to the PON protection group); And/or information related to the working status of the PON protection group, such as the traffic rate of the primary PON link and/or the backup PON link corresponding to the PON protection group.
  • the OLT connected to the downlink port of the primary VRRP gateway may periodically or aperiodically send the working status information of the corresponding PON protection group to the primary VRRP gateway, and the OLT connected to the downlink port of the primary VRRP gateway may also be used.
  • the working status information of the corresponding PON protection group is sent to the primary VRRP gateway.
  • the active/standby switching condition of the VRRP gateway group is strongly related to the working state information of the PON protection group.
  • the active/standby switchover conditions of the VRRP gateway group can be flexibly set according to the actual application scenario requirements.
  • the primary VRRP gateway performs an active/standby switchover of the VRRP gateway group when the active/standby switchover condition of the VRRP gateway group is determined.
  • the previous primary VRRP gateway in the VRRP gateway group is switched to the standby VRRP gateway, and the previous standby VRRP gateway is switched to the standby VRRP gateway.
  • the VRRP gateway group includes a first VRRP gateway and a second VRRP gateway
  • the VRRP gateway is the master VRRP gateway (that is, the first VRRP gateway is in the active state)
  • the second VRRP gateway is the standby VRRP gateway (that is, the second VRRP gateway is in the standby state)
  • the active and standby of the VRRP gateway group is executed.
  • the second VRRP gateway switches to the primary VRRP gateway (that is, the second VRRP gateway is in the active state), and the first VRRP gateway switches to the standby VRRP gateway (that is, the first VRRP gateway is in the standby state), and so on. .
  • the active VRRP gateway in the VRRP gateway group can perform the VRRP based on the working status information of the PON protection group associated with the VRRP gateway group collected from the OLT connected to the downlink port.
  • the decision of the master/slave switchover of the gateway group that is to say, the change of the working status of the corresponding PON protection group may trigger the active/standby switchover of the VRRP gateway group, and the change of the working state of the PON protection group may be caused by the active/standby switchover of the PON protection group.
  • the active/standby switchover of the VRRP gateway group and the active/standby switchover of the corresponding PON protection group may be associated with each other (for example, part of the PON protection associated with the VRRP gateway group).
  • the active/standby switchover of the VRRP gateway group can be triggered. This is advantageous in reducing the overload probability of the direct link of the two VRRP gateways in the VRRP gateway group, so that the active/standby switchover triggering mechanism of the VRRP gateway group in this embodiment is more reasonable, which is beneficial to reducing the impact caused by packet loss.
  • the probability of occurrence of a situation of quality of service is advantageous in reducing the overload probability of the direct link of the two VRRP gateways in the VRRP gateway group.
  • the working status information of the PON protection group associated with the VRRP gateway group includes, for example, at least one of the following: an active PON chain associated with the standby VRRP gateway in the VRRP gateway group.
  • the number of paths, the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group, and the VRRP gateway The sum of the number of active PON links associated with the primary VRRP gateway in the group and the traffic rate of the primary PON link associated with the primary VRRP gateway in the VRRP gateway group.
  • the PON link (for example, the primary PON link or the backup PON link) associated with the VRRP gateway refers to the VRRP gateway.
  • the PON link corresponding to the OLT connected to the downlink port (the PON port of the PON link corresponding to the OLT belongs to the OLT).
  • the primary PON link associated with the primary VRRP gateway in the VRRP gateway group refers to the primary PON link corresponding to the OLT connected to the downlink port of the primary VRRP gateway.
  • the primary VRRP gateway associated with the VRRP gateway group is associated with the standby device.
  • the PON link refers to an alternate PON link corresponding to the OLT connected to the downlink port of the primary VRRP gateway.
  • the alternate PON link associated with the standby VRRP gateway in the VRRP gateway group refers to the alternate PON link corresponding to the OLT connected to the downlink port of the standby VRRP gateway.
  • the primary PON link associated with the standby VRRP gateway in the VRRP gateway group refers to the primary PON link corresponding to the OLT connected to the downlink port of the standby VRRP gateway, and so on.
  • the backup PON link and the backup PON link are paired, the backup PON port and the standby PON port also appear in pairs, so the number of standby PON links associated with the standby VRRP gateway in the VRRP gateway group is equal to The number of active PON links associated with the primary VRRP gateway in the VRRP gateway group. Similarly, the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group is equal to the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • the number of spare PON ports belonging to the OLT connected to the downlink port of the standby VRRP gateway in the VRRP gateway group is equal to the primary PON of the OLT belonging to the downlink port connected to the primary VRRP gateway in the VRRP gateway group.
  • the number of spare PON ports attributed to the OLT connected to the downlink port of the primary VRRP gateway in the VRRP gateway group is equal to the primary PON of the OLT that is connected to the downlink port of the standby VRRP gateway in the VRRP gateway group. The number of ports, and so on.
  • the active/standby switching condition of the VRRP gateway group may include, for example, at least one of the following conditions:
  • the first condition the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group exceeds a first threshold.
  • the proportion of the primary PON link associated with the standby VRRP gateway in the VRRP gateway group is greater than the second threshold relative to the total number of primary PON links associated with the VRRP gateway group.
  • the second condition the number of standby PON links associated with the primary VRRP gateway in the VRRP gateway group exceeds a third threshold.
  • the proportion of the number of spare PON links associated with the primary VRRP gateway in the VRRP gateway group relative to the total number of alternate PON links associated with the VRRP gateway group exceeds a fourth threshold.
  • the third condition the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group is less than a fifth threshold. Or the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group, relative to the primary PON link associated with the VRRP gateway group The proportion of the total number is less than the sixth threshold.
  • the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than a seventh threshold.
  • the number of spare PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than the eighth threshold relative to the total number of used PON links associated with the VRRP gateway group.
  • a fifth condition the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group exceeds the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • a sixth condition the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • the sixth threshold may be equal to 35%, 42%, 45%, 50%, 20%, 49%, 31%, or other value.
  • the fifth threshold can be equal to 5, 8, 10, 4, 9, or other values.
  • the fourth threshold can be equal to 50%, 55%, 56%, 61%, 65%, 68%, 70%, or other value.
  • the third threshold can be equal to 9, 10, 13, 7, 8, or other values.
  • the second threshold can be equal to 50%, 55%, 56%, 61%, 65%, 68%, 70%, or other value.
  • the first threshold can be equal to 9, 11, 13, 7, 8, or other values.
  • FIG. 3 is a schematic flowchart diagram of another active/standby switching control method according to another embodiment of the present invention.
  • another active/standby switching control method provided by the embodiment of the present invention may include:
  • the optical line terminal OLT connected to the downlink port of the standby VRRP gateway in the VRRP gateway group sends the PON protection group associated with the VRRP gateway group to the standby VRRP gateway. State information.
  • the standby VRRP gateway receives the working state information of the PON protection group that is associated with the VRRP gateway group that is sent by the OLT that is connected to the downlink port of the standby VRRP gateway, and the standby VRRP gateway is configured according to the received PON.
  • the working status information of the protection group determines whether the active/standby switching conditions of the VRRP gateway group are met.
  • a control plane link can be created between the OLT connected to the downlink port of the standby VRRP gateway and the standby VRRP gateway, and the standby VRRP gateway can receive and receive through the control plane link.
  • the OLT connected to the downlink port of the standby VRRP gateway may periodically or aperiodically send the working status information of the corresponding PON protection group to the standby VRRP gateway, and the OLT connected to the downlink port of the standby VRRP gateway may also be in the standby VRRP.
  • the working status information of the corresponding PON protection group is sent to the standby VRRP gateway.
  • the active/standby switching condition of the VRRP gateway group is strongly related to the working state information of the PON protection group.
  • the active/standby switchover conditions of the VRRP gateway group can be flexibly set according to the actual application scenario requirements.
  • the standby VRRP gateway performs an active/standby switchover of the VRRP gateway group when the active/standby switchover condition of the VRRP gateway group is determined.
  • the working status information of the PON protection group associated with the VRRP gateway group includes, for example, at least one of the following: an active PON chain associated with the standby VRRP gateway in the VRRP gateway group.
  • the number of paths, the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group, and the VRRP gateway The sum of the number of active PON links associated with the primary VRRP gateway in the group and the traffic rate of the primary PON link associated with the alternate VRRP gateway in the VRRP gateway group.
  • the active/standby switching condition of the VRRP gateway group may include, for example, at least one of the following conditions:
  • the first condition the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group exceeds a first threshold. Or, with the standby VRRP gateway in the VRRP gateway group The number of associated primary PON links exceeds a second threshold relative to the total number of primary PON links associated with the VRRP gateway group.
  • a second condition the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group exceeds a third threshold, or the alternate PON link associated with the primary VRRP gateway in the VRRP gateway group The amount, in proportion to the total number of alternate PON links associated with the VRRP gateway group, exceeds a fourth threshold.
  • the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group is less than a fifth threshold, or the primary PON associated with the primary VRRP gateway in the VRRP gateway group The number of links is less than a sixth threshold relative to the total number of primary PON links associated with the VRRP gateway group.
  • a fourth condition the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than a seventh threshold, or the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group The proportion of the total number of used PON links associated with the VRRP gateway group is less than the eighth threshold.
  • a fifth condition the number of primary PON links associated with the alternate VRRP gateway in the VRRP gateway group exceeds the number of primary PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • a sixth condition the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group is less than the number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group.
  • the seventh condition is that the sum of the traffic rates of the active PON links associated with the standby VRRP gateways in the VRRP gateway group exceeds a ninth threshold.
  • the tenth condition the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the active VRRP gateway in the VRRP gateway group is smaller than the primary PON associated with the standby VRRP gateway in the VRRP gateway group. The sum of the traffic rates of the links;
  • the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the active VRRP gateway in the VRRP gateway group is greater than the primary PON link associated with the standby VRRP gateway in the VRRP gateway group.
  • the sum of the traffic rates, and the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the primary VRRP gateway in the VRRP gateway group, minus The difference between the traffic rate sum of the primary PON links associated with the standby VRRP gateway in the VRRP gateway group is less than the thirteenth threshold;
  • the upper limit of the traffic rate load of the direct link between the standby VRRP gateway and the active VRRP gateway in the VRRP gateway group is greater than the primary PON link associated with the standby VRRP gateway in the VRRP gateway group.
  • the quotient obtained by summing the traffic rates of the primary PON link is greater than the fourteenth threshold.
  • FIG. 4 is a schematic flowchart diagram of another active/standby switching control method according to another embodiment of the present invention.
  • another active/standby switching control method provided by the embodiment of the present invention may include:
  • the optical line terminal OLT connected to the downlink port of the standby VRRP gateway of the VRRP gateway group sends the working status information part1 of the PON protection group associated with the VRRP gateway group to the standby VRRP gateway.
  • the standby VRRP gateway receives the working status information part1 of the PON protection group associated with the VRRP gateway group sent by the OLT connected to the downlink port of the standby VRRP gateway, and the standby VRRP gateway is in the VRRP gateway group.
  • the master uses the VRRP gateway to forward the working status information part1.
  • a control plane link may be created between the OLT connected to the downlink port of the standby VRRP gateway and the standby VRRP gateway, and the standby VRRP gateway may receive through the control plane link S1.
  • the working status information part1 may include, for example, at least one of the following: the number of primary PON links associated with the standby VRRP gateway in the VRRP gateway group, The number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group, and the primary in the VRRP gateway group The sum of the number of primary PON links associated with the VRRP gateway, the sum of the traffic rates of the primary PON links associated with the alternate VRRP gateways in the VRRP gateway group (or associated with the alternate VRRP gateways in the VRRP gateway group) Each primary PON Link traffic rate).
  • the optical line terminal OLT connected to the downlink port of the primary VRRP gateway in the VRRP gateway group sends the working status information part2 of the PON protection group associated with the VRRP gateway group to the primary VRRP gateway.
  • the working status information part2 may include, for example, at least one of the following: the number of primary PON links associated with the standby VRRP gateway in the VRRP gateway group, The number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group, and the primary in the VRRP gateway group The sum of the number of primary PON links associated with the VRRP gateway, the sum of the traffic rates of the primary PON links associated with the primary VRRP gateway in the VRRP gateway group (or the primary VRRP gateway in the VRRP gateway group) The traffic rate of each associated primary PON link).
  • the primary VRRP gateway receives the working status information part2 of the PON protection group that is associated with the VRRP gateway group that is sent by the OLT connected to the downlink port of the primary VRRP gateway, and the primary VRRP gateway receives the standby VRRP gateway for forwarding.
  • the work status information part1 The active VRRP gateway determines whether the active/standby switching condition of the VRRP gateway group is met according to the received working state information part1 and the working state information part2.
  • a control plane link can be created between the OLT connected to the downlink port of the primary VRRP gateway and the primary VRRP gateway, and the primary VRRP gateway can pass the control plane link. And receiving, by the optical line terminal connected to the downlink port of the primary VRRP gateway, the working state information part2 of the PON protection group associated with the VRRP gateway group.
  • the primary VRRP gateway performs the active/standby switchover of the VRRP gateway group if the active/standby switchover condition of the VRRP gateway group is met.
  • the active/standby switching condition of the VRRP gateway group may include, for example, at least one of the following conditions:
  • FIG. 5 is a schematic flowchart diagram of another active/standby switching control method according to another embodiment of the present invention. As shown in the example of FIG. 5, another active/standby switching control provided by the embodiment of the present invention is provided.
  • the method can include:
  • the OLT connected to the downlink port of the primary VRRP gateway in the VRRP gateway group sends the working status information part2 of the PON protection group associated with the VRRP gateway group to the primary VRRP gateway.
  • the primary VRRP gateway receives the working status information part1 of the PON protection group associated with the VRRP gateway group sent by the OLT connected to the downlink port of the primary VRRP gateway, and the primary VRRP gateway sends the VRRP gateway to the VRRP gateway.
  • the standby VRRP gateway among the groups forwards the working status information part2.
  • a control plane link can be created between the OLT connected to the downlink port of the primary VRRP gateway and the primary VRRP gateway, and the primary VRRP gateway can pass the control plane link. And receiving, by the optical line terminal connected to the downlink port of the primary VRRP gateway, the working state information part2 of the PON protection group associated with the VRRP gateway group.
  • the working status information part2 may include, for example, at least one of the following: the number of primary PON links associated with the standby VRRP gateway in the VRRP gateway group, The number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group, and the primary in the VRRP gateway group The sum of the number of primary PON links associated with the VRRP gateway, the sum of the traffic rates of the primary PON links associated with the primary VRRP gateway in the VRRP gateway group (or the primary VRRP gateway in the VRRP gateway group) The traffic rate of each associated primary PON link).
  • the OLT connected to the downlink port of the standby VRRP gateway of the VRRP gateway group sends the working status information part1 of the PON protection group associated with the VRRP gateway group to the standby VRRP gateway.
  • the working status information part1 may include, for example, at least one of the following: the number of primary PON links associated with the standby VRRP gateway in the VRRP gateway group, The number of alternate PON links associated with the primary VRRP gateway in the VRRP gateway group, the number of alternate PON links associated with the alternate VRRP gateway in the VRRP gateway group, and the primary in the VRRP gateway group The number of primary PON links associated with the VRRP gateway, and the flow of the primary PON link associated with the alternate VRRP gateway in the VRRP gateway group The sum of the rate rates (or the rate of traffic for each primary PON link associated with the alternate VRRP gateway in the VRRP gateway group).
  • the standby VRRP gateway receives the working status information part1 of the PON protection group that is sent by the OLT that is connected to the downlink port of the standby VRRP gateway, and the standby VRRP gateway receives the information that is forwarded by the primary VRRP gateway.
  • the work status information part2 is described.
  • the standby VRRP gateway determines whether the active/standby switching condition of the VRRP gateway group is met according to the received working state information part1 and the working state information part2.
  • a control plane link may be created between the OLT connected to the downlink port of the standby VRRP gateway and the standby VRRP gateway, and the standby VRRP gateway may receive through the control plane link S1.
  • the standby VRRP gateway performs an active/standby switchover of the VRRP gateway group when the active/standby switchover condition of the VRRP gateway group is determined.
  • the active/standby switching condition of the VRRP gateway group may include, for example, at least one of the following conditions:
  • an embodiment of the present invention provides an active/standby switchover control apparatus 600, including:
  • the collecting unit 610 is configured to collect working state information of the passive optical network PON protection group associated with the VRRP gateway group.
  • the determining unit 620 is configured to determine, according to the collected working state information of the PON protection group, whether the active/standby switching condition of the VRRP gateway group is met.
  • the control unit 630 is configured to perform an active/standby switchover of the VRRP gateway group if the determining unit determines that the active/standby switchover condition of the VRRP gateway group is met.
  • the active/standby switchover control device may be a primary VRRP gateway or a standby VRRP gateway in the VRRP gateway group.
  • the active/standby switchover control device may be deployed in the primary VRRP gateway or the standby VRRP gateway in the VRRP gateway group.
  • the collecting unit may be specifically configured to receive the association associated with the VRRP gateway group The working status information of the PON protection group sent by the optical line terminal to which the PON protection group belongs, or the working status information of the PON protection group sent by the standby VRRP gateway in the VRRP gateway group, or receiving the VRRP gateway The working status information of the PON protection group sent by the primary VRRP gateway in the group.
  • the collecting unit receiving the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs includes: receiving and the VRRP gateway based on the created control plane link.
  • the working state information of the PON protection group sent by the optical line terminal to which the PON protection group to which the group belongs is associated.
  • an embodiment of the present invention provides an active/standby switchover control apparatus 700, including:
  • the processor 720 primarily controls the operation of the active/standby switching control device 700.
  • Processor 720 may also be referred to as a Central Processing Unit (CPU).
  • CPU Central Processing Unit
  • the components of the active/standby switchover control device 700 may be coupled together by a bus system, for example, in addition to the data bus, including a power bus, a control bus, a status signal bus, and the like.
  • Processor 720 may be an integrated circuit chip with signal processing capabilities. In an implementation process, some steps of the above method may be completed by an integrated logic circuit of hardware in the processor 720 or an instruction in a form of software.
  • the processor 720 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in a memory, for example, the processor 720 can read information in the memory and combine it
  • the hardware completes the steps of the above method.
  • the communication interface 710 is configured to collect working state information of the passive optical network PON protection group associated with the virtual routing redundancy protocol VRRP gateway group.
  • the processor 720 is configured to determine, according to the collected working state information of the PON protection group, whether the active/standby switching condition of the VRRP gateway group is met, and determine that the active/standby switching condition of the VRRP gateway group is met. Perform the active/standby switchover of the VRRP gateway group.
  • the communication interface 710 may be specifically configured to receive the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs, or receive the VRRP gateway group.
  • the communication interface 710 is specifically configured to receive, according to the created control plane link, the working state information of the PON protection group sent by the optical line terminal to which the PON protection group associated with the VRRP gateway group belongs.
  • the VRRP gateway and the optical line terminal exchange working state information of the PON protection group by creating a control plane link, which is beneficial to realizing the effective exchange of the working state information of the PON protection group in real time and conveniently.
  • FIG. 7 only shows a simplified design of the active/standby switching control device.
  • the active/standby switching control device may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc., and all base stations that can implement the present invention are within the scope of the present invention. .
  • an embodiment of the present invention further provides a communication system, including:
  • VRRP gateway group includes a first VRRP gateway 810 and a second VRRP gateway 820, wherein the first VRRP gateway 810 and the second VRRP gateway 820 are One of the VRRP gateways is the primary VRRP gateway, and the other is the standby VRRP gateway. Any one of the VRRP gateways in the VRRP gateway group may be deployed with any of the active/standby switching control devices provided by the embodiments of the present invention.
  • an embodiment of the present invention further provides an active/standby switching control apparatus.
  • the apparatus includes a unit capable of performing an active/standby switching control method.
  • an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores program code.
  • the program code includes instructions for executing an active/standby switching control method.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated. Go to another system, or some features can be ignored or not executed.
  • the indirect coupling or direct coupling or communication connection shown or discussed herein may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the medium includes a number of instructions for causing a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

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Abstract

本专利申请提供一种主备倒换控制方法，包括：收集与虚拟路由冗余协议VRRP网关组关联的无源光网络PON保护组的工作状态信息；根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足；在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。

Description

主备倒换控制方法和相关装置与系统 技术领域
本发明涉及光通信技术领域，具体主要涉及了主备倒换控制方法和相关装置与系统。
背景技术
无源光网络(PON，Passive Optical Network)技术是一种点对多点的光纤传输和接入技术。在PON中，下行一般采用广播的方式，上行一般采用时分多址方式，可灵活地组成树型、星型、总线型等拓朴结构。
PON包括用户侧的光网络单元(ONU，Optical Network Unit)、光分配网络和局侧的光线路终端(OLT，Optical Line Terminal)。而无源则是指光分配网络(ODN，Optical Distribution Network)中不含有任何的有源电子器件和电子电源，由例如光分路器(Splitter)等无源器件组成。其中，ONU为PON提供用户侧接口，若ONU直接提供用户端口功能(例如个人电脑上网用的以太网用户端口)，那么这种情况下ONU亦可称之为光网络终端(ONT，Optical Network Terminal)。在无特殊说明的情况下下文提到的ONU统指ONU和ONT。ODN连接OLT和ONU，用于分发或复用OLT和ONU之间的信号。OLT为PON提供网络侧接口，OLT连接1个或多个ODN。
一般情况下ONU和OLT之间的归属关系是单归属，在对组网可靠性有高要求的业务场景下，ONU会通过光分路器双归属到两个OLT以便于保护PON链路和OLT。可以配置分别位于两个OLT上的一对PON端口为一个PON保护组，其中，一个PON保护组包括一个主用PON端口和一个备用PON端口。一个PON保护组对应了两条PON链路，一条为主用PON链路(主用PON端口对应的PON链路)，另一条为备用PON链路(备用PON端口对应的PON链路)。当某PON保护组对应的主用PON链路故障之时，相应流量会倒换到该PON保护组对应的备用PON链路上，倒换之后备用PON链路切换主用PON链路，而此前的主用PON链路则切换为备用PON链路，即PON保护组的主备倒换。当某OLT故障时，等效于该OLT上的所有PON链路均故障，故障OLT上的所有流量可倒换到另一个OLT上，从而尽量确保不发生大面积业务 中断，这种技术就是PON双归保护技术。
OLT的上行端口连接到三层网关(简称L3网关)的下行端口，L3网关通过运行虚拟路由冗余协议(VRRP，Virtual Router Redundancy Protocol)而便于冗余备份。运行VRRP的L3网关可简称VRRP网关，两个VRRP网关可配置为1个VRRP网关组。1个VRRP网关组中的两个VRRP网关(即一个主用VRRP网关和一个备用VRRP网关)之间可进行主备倒换。其中，从业务归属上来看，一个VRRP网关组可关联一个或多个PON保护组。
VRRP网关组主备倒换的传统触发机制中，先监测VRRP网关组中的主用VRRP网关的下行端口所连接OLT的状态，通常只在监测到所述主用VRRP网关的下行端口的所连接OLT的发生彻底故障的情况下才执行所述VRRP网关组的主备倒换。
发明内容
本发明实施例提供PON的通信方法和相关设备以及PON，以期提高PON中PON设备之间的链路利用效率，提高数据传输速率。
本发明实施例提供主备倒换控制方法和相关装置与系统，以期增强VRRP网关组主备倒换的触发机制的合理性，进而减少因丢包而影响业务质量的情况的出现概率。
本发明实施例第一方面提供了一种主备倒换控制方法。VRRP网关组中的第一VRRP网关收集与VRRP网关组关联的PON保护组的工作状态信息，根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足，在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
其中，所述第一VRRP网关为VRRP网关组中的主用VRRP网关或者备用VRRP网关。
其中，PON保护组的工作状态信息例如可涉及PON保护组的主用PON端口和/或备用PON端口的分布情况(即PON保护组对应的主用PON链路和备用PON链路的分布情况)，和/或，PON保护组对应的主用PON链路和/或备用PON链路的流量速率等与PON保护组工作状态相关的信息等。
可以看出，上述举例技术方案中，例如VRRP网关组中的主用VRRP网关或被用VRRP网关可基于从与其下行端口连接的OLT收集到的与VRRP网关组关联的PON保护组的工作状态信息，进行是否执行所述VRRP网关组的主备倒换的决策。也就是说相应PON保护组的工作状态变化可能触发VRRP网关组的主备倒换，而PON保护组的工作状态变化很可能是因PON保护组的主备倒换而引起。因此，相对于传统VRRP网关组主备倒换触发机制，上述举例方案中VRRP网关组主备倒换和相应PON保护组的主备倒换之间可存在一定联动性(例如VRRP网关组关联的部分PON保护组的主备倒换都可能触发VRRP网关组的主备倒换，这有利于降低VRRP网关组中两个VRRP网关的直连链路的过载几率)。这就使得上述举例方案中的这种VRRP网关组的主备倒换触发机制更加的合理，进而有利于降低因丢包而影响业务质量的情况的出现概率。
在一些可能实施方式之中，当第一VRRP网关为VRRP网关组中的主用VRRP网关，第一VRRP网关收集与VRRP网关组关联的PON保护组的工作状态信息可包括：第一VRRP网关接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，和/或第一VRRP网关可接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息。
在一些可能实施方式之中，当第一VRRP网关为VRRP网关组中的备用VRRP网关，则收集与VRRP网关组关联的PON保护组的工作状态信息可以包括：第一VRRP网关可接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，和/或第一VRRP网关可接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
例如，接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息包括：基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
其中，VRRP网关和光线路终端之间通过创建控制面链路来交换PON保 护组的工作状态信息，有利于比较实时便捷的实现PON保护组的工作状态信息有效交换。
本发明实施例第二方面提供一种主备倒换控制装置，包括收集单元、确定单元和控制单元。其中，收集单元用于收集与VRRP网关组关联的无源光网络PON保护组的工作状态信息。确定单元用于根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足。控制单元用于在所述确定单元确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
其中，主备倒换控制装置可为VRRP网关组中的主用VRRP网关或者备用VRRP网关。或者，主备倒换控制装置可部署于VRRP网关组中的主用VRRP网关或者备用VRRP网关之中。
例如，所述收集单元可以具体用于，接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
例如所述收集单元接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息包括：基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
本发明实施例第三方面提供另一种主备倒换控制装置，包括通信接口和处理器。通信接口用于收集与虚拟路由冗余协议VRRP网关组关联的无源光网络PON保护组的工作状态信息。处理器用于根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足，在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
例如，所述通信接口可以具体用于，接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态 信息，或，接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
例如所述通信接口具体用于，基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
其中，VRRP网关和光线路终端之间通过创建控制面链路来交换PON保护组的工作状态信息，有利于比较实时便捷的实现PON保护组的工作状态信息有效交换。
结合本发明实施例的第一方面或第二方面或第三方面，在一些可能实施方式之中，与所述VRRP网关组关联的所述PON保护组的工作状态信息例如包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和。
举例来说，所述VRRP网关组的主备倒换条件例如可包括如下条件中的至少一个：
第一条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量超过第一阈值。或者，与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量，相对于与所述VRRP网关组关联的主用PON链路总数量的占比超过第二阈值。
第二条件：与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量超过第三阈值。或者，与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量，相对于与所述VRRP网关组关联的备用PON链路总数量的占比超过第四阈值。
第三条件：与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量少于第五阈值。或者，与所述VRRP网关组中的主用VRRP网关关 联的主用PON链路的数量，相对于与所述VRRP网关组关联的主用PON链路总数量的占比小于第六阈值。
第四条件：与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量少于第七阈值。或者，与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量，相对于与所述VRRP网关组关联的被用PON链路总数量的占比少于第八个阈值。
第五条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量超过与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量。
第六条件：与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量少于与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量。
第七条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和超过第九阈值。或者，与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和，相对于与所述VRRP网关组关联的所有主用PON链路的流量速率总和的占比超过第十阈值。
第八条件：与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和少于第十一阈值。或者，与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和，相对于与所述VRRP网关组关联的所有主用PON链路的流量速率总和的占比少于第十二阈值。
第九条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和，超过了与所述VRRP网关组中的主用VRRP网关所关联的主用PON链路的流速率总和。
第十条件：与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，小于与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和。
或者，与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，大于与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和，并且与所述VRRP网关组中的备 用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，减去与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和而得到的差值小于第十三阈值。
或者，与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，大于与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和，并且与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，除以与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和而得到的商大于第十四阈值。
其中，可根据不同应用场景的实际需要来设置上述提到的各种阈值的具体取值。
例如，第十四阈值可以等于75％、80％、86％、90％、95％、92％或者其他值。
例如，第十三阈值可等于100Mbps、30Mbps、80Mbps、500Mbps或者其他值。
例如，第十二阈值可以等于35％、40％、44％、50％、20％、48％或者其他值。
例如，第十一阈值可以等于10Mbps、5Mbps、90Mbps、400Mbps或者其他值。
例如，第十阈值可以等于50％、55％、56％、60％、65％、68％、70％或者其他值。
例如，第九阈值可以等于120Mbps、30Mbps、90Mbps、1024Mbps或者其他值。
例如，第八阈值可以等于35％、41％、45％、50％、20％、49％、30％或者其他值。
例如，第七阈值可以等于5、8、10、3、9或者其他值。
例如，第六阈值可以等于35％、42％、45％、50％、20％、49％、31％或者其他值。
例如，第五阈值可以等于5、8、10、4、9或者其他值。
例如，第四阈值可以等于50％、55％、56％、61％、65％、68％、70％或者其他值。
例如，第三阈值可以等于9、10、13、7、8或者其他值。
例如，第二阈值可以等于50％、55％、56％、61％、65％、68％、70％或者其他值。
例如，第一阈值可以等于9、11、13、7、8或者其他值。
可以理解，上述提到的各种阈值具体取值的举例是示意性的，实际应用中并不限于这些举例取值。
本发明实施例第四方面提供了一种计算机可读存储介质，所述计算机可读存储介质存储了用于主备切换控制的程序代码。所述程序代码包括用于执行在第一方面中的方法的指令。
本发明实施例第五方面还提供了一种主备切换控制装置。所述装置包括的单元能够执行在第一方面中第一VRRP网关所执行的方法。
本发明实施例第五方面还提供了一种通信系统，包括：
VRRP网关组，其中，所述VRRP网关组中的其中一个VRRP网关中可部署有本发明实施例提供的任意一种主备倒换控制装置。
附图说明
为了更清楚地说明本发明实施例技术方案，下面将对实施例和现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。
图1-a为本发明实施例提供的一种网络架构的示意图；
图1-b和图1-c为本发明实施例提供的一种流量路径的变化示意图；
图2为本发明实施例提供的一种主备切换控制方法的流程示意图；
图3为本发明实施例提供的另一种主备切换控制方法的流程示意图；
图4为本发明实施例提供的另一种主备切换控制方法的流程示意图；
图5为本发明实施例提供的另一种主备切换控制方法的流程示意图；
图6为本发明实施例提供的一种主备切换控制装置的示意图；
图7为本发明实施例提供的另一种主备切换控制装置的示意图
图8为本发明实施例提供的一种通信系统的示意图。
具体实施方式
本发明实施例提供主备倒换控制方法和相关装置与系统。
本发明说明书、权利要求书和附图中出现的术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，术语“第一”、“第二”和“第三”等是用于区别不同的对象，而并非用于描述特定的顺序。
下面首先结合相关附图来举例介绍下本申请实施例的方案可能涉及到的网络架构。
图1-a为PON双规架构和VRRP网关联合部署的架构示意图。图1-a举例架构中，一个ONU通过光分路器双归属到两个OLT以便保护PON链路和OLT。分别位于两个OLT上的一对PON端口配置为一个PON保护组。一个PON保护组包括一个主用PON端口和一个备用PON端口。一个PON保护组对应了两条PON链路，一条为主用PON链路(即主用PON端口对应的PON链路)，另一条为备用PON链路(备用PON端口对应的PON链路)。在PON双归保护技术中，当某PON保护组对应的主用PON链路故障之时，相应流量会倒换到该PON保护组对应的备用PON链路上。倒换之后备用PON链路切换主用PON链路，而此前的主用PON链路则切换为备用PON链路，即PON保护组的主备倒换。当某OLT故障时，等效于该OLT上的PON链路故障，故障OLT上的所有流量可以倒换到另一个OLT上，从而尽量确保不发生大面积业务中断。
OLT的上行端口连接到VRRP网关，两个VRRP网关被配置为1个VRRP网关组。1个VRRP网关组中的两个VRRP网关(即一个主用VRRP网关和一个备用VRRP网关)之间可进行主备倒换。从业务归属上来看，一个VRRP网关组可关联一个或多个PON保护组。图1-a中示例一个OLT包括三个PON 端口，因此VRRP网关组关联了三个PON保护组，当然，一个OLT也可包括更多或更少数量的PON端口，VRRP网关组也可关联了更多或者更少数量的PON保护组。
本发明发明人通过传统技术进行大量研究和实践，发现了传统技术中经常会出现因丢包而影响业务质量的情况的深层原因。传统技术中PON保护组是否主备倒换取决于PON链路或PON端口的工作状态。假设某个PON保护组B1对应的主用PON链路是与VRRP网关组中的主用VRRP网关关联，当PON保护组B1发生主备倒换时，相应流量从故障的主用PON链路倒换到备用PON链路，即发生PON保护组B1的主备倒换。但是，由于此时VRRP网关组并未发生与之联动的主备倒换，从此前故障的主用PON链路倒换到备用PON链路的这部分流量仍会通过VRRP网关组中的两个VRRP网关之间的直连链路，从备用VRRP网关回流到主用VRRP网关。因此这种机制可能使得当与VRRP网关组关联的大量PON保护组(例如80％的PON保护组)出现主备倒换时(此时，由于与主用VRRP网关的下行端口连接的OLT并未彻底故障，因此VRRP网关组仍未主备倒换)，可能使得VRRP网关组中两个VRRP网关之间的直连链路上出现流量过载而导致丢包，而这种情况的出现就将极大影响业务质量。例如图1-b和图1-c举例所示，图1-b和图1-c的虚线表示流量路径，假设图1-b举例所示的是流量路径原始状态。图1-c举例所示的发生了一些PON保护组的主备倒换之后的流量路径状态，此时由于主用VRRP网关的下行端口连接的OLT没有彻底故障，因此传统技术在这种情况下VRRP网关组仍然不会执行主备倒换。
出现上述影响业务质量的情况根本原因还是VRRP网关组主备倒换的传统触发机制的科学合理性较低，因此本申请实施例寻求增强VRRP网关组主备倒换的触发机制的合理性的方案，进而希望减少因丢包而影响业务质量的情况的出现概率。
下面介绍本发明实施例的相关技术方案。
参见图2，图2为本发明的一个实施例提供的一种主备倒换控制方法的流程示意图。具体如图2举例所示，本发明实施例提供的一种主备倒换控制方法可以包括：
201、与VRRP网关组中的主用VRRP网关的下行端口连接的光线路终端OLT向所述主用VRRP网关发送与所述VRRP网关组关联的PON保护组的工作状态信息。
其中，所述VRRP网关组关联的PON保护组可有一个或多个。
202、主用VRRP网关接收与所述主用VRRP网关的下行端口连接的所述OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息，所述主用VRRP网关根据接收到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足。
在一些可能实施方式中，与所述主用VRRP网关的下行端口连接的OLT与所述主用VRRP网关之间可创建控制面链路，所述主用VRRP网关可通过所述控制面链路，接收与所述主用VRRP网关的下行端口连接的光线路终端发送的与所述VRRP网关组关联的PON保护组的工作状态信息。
其中，PON保护组的工作状态信息可涉及PON保护组的主用PON端口和/或备用PON端口的分布情况(即PON保护组对应的主用PON链路和备用PON链路的分布情况)；和/或，PON保护组对应的主用PON链路和/或备用PON链路的流量速率等与PON保护组工作状态相关的信息等。
与主用VRRP网关的下行端口连接的OLT可周期性或非周期性的主动向所述主用VRRP网关发送相应PON保护组的工作状态信息，与主用VRRP网关的下行端口连接的OLT也可在主用VRRP网关的请求下，向所述主用VRRP网关发送相应PON保护组的工作状态信息。
其中，所述VRRP网关组的主备倒换条件是与所述PON保护组的工作状态信息强相关的。可以根据实际应用场景需求来灵活的设定所述VRRP网关组的主备倒换条件。
203、所述主用VRRP网关在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
可以理解的是，执行所述VRRP网关组的主备倒换之后，所述VRRP网关组中此前的主用VRRP网关切换为备用VRRP网关，此前的备用VRRP网关切换为备用VRRP网关。举例来说，假设所述VRRP网关组包括第一VRRP网关和第二VRRP网关，在执行所述VRRP网关组的主备倒换之前，假设第 一VRRP网关为主用VRRP网关(即第一VRRP网关处于主用状态)，第二VRRP网关为备用VRRP网关(即第二VRRP网关处于备用状态)，那么在执行所述VRRP网关组的主备倒换之后，则第二VRRP网关切换为主用VRRP网关(即第二VRRP网关处于主用状态)，而第一VRRP网关切换为备用VRRP网关(即第一VRRP网关处于备用状态)，以此类推。
可以看出，本实施例中，VRRP网关组中的主用VRRP网关可基于从与其下行端口连接的OLT收集到的与VRRP网关组关联的PON保护组的工作状态信息，进行是否执行所述VRRP网关组的主备倒换的决策。也就是说相应PON保护组的工作状态变化可能触发VRRP网关组的主备倒换，而PON保护组的工作状态变化很可能是因PON保护组的主备倒换而引起。因此相对于传统VRRP网关组主备倒换触发机制，本实施例方案中VRRP网关组主备倒换和相应PON保护组的主备倒换之间可存在一定联动性(例如VRRP网关组关联的部分PON保护组的主备倒换都可能触发VRRP网关组的主备倒换)。这有利于降低VRRP网关组中两个VRRP网关的直连链路的过载几率，使得本实施例中的这种VRRP网关组的主备倒换触发机制更加合理，进而有利于降低因丢包而影响业务质量的情况的出现概率。
本实施例中，与所述VRRP网关组关联的所述PON保护组的工作状态信息例如包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和。
可以理解的是，与VRRP网关(例如所述VRRP网关组中的主用VRRP网关或备用VRRP网关)关联的PON链路(例如主用PON链路或备用PON链路)，指与VRRP网关的下行端口连接的OLT对应的PON链路(OLT对应的PON链路的PON端口属于该OLT)。例如VRRP网关组中的主用VRRP网关关联的主用PON链路，指的是与主用VRRP网关的下行端口连接的OLT对应的主用PON链路。类似的，VRRP网关组中的主用VRRP网关关联的备 用PON链路，指的是与主用VRRP网关的下行端口连接的OLT对应的备用PON链路。VRRP网关组中的备用VRRP网关关联的备用PON链路，指的是与备用VRRP网关的下行端口连接的OLT对应的备用PON链路。VRRP网关组中的备用VRRP网关关联的主用PON链路，指的是与备用VRRP网关的下行端口连接的OLT对应的主用PON链路，以此类推。
可以理解，由于备用PON链路和备用PON链路是成对出现的，备用PON端口和备用PON端口也是成对出现的，因此VRRP网关组中的备用VRRP网关关联的备用PON链路的数量等于VRRP网关组中的主用VRRP网关关联的主用PON链路的数量。类似的，VRRP网关组中的备用VRRP网关关联的主用PON链路的数量等于VRRP网关组中的主用VRRP网关关联的备用PON链路的数量。类似的，归属于与VRRP网关组中的备用VRRP网关的下行端口连接的OLT的备用PON端口的数量，等于归属于与VRRP网关组中的主用VRRP网关的下行端口连接的OLT的主用PON端口的数量。类似的，归属于与VRRP网关组中的主用VRRP网关的下行端口连接的OLT的备用PON端口的数量，等于归属于与VRRP网关组中的备用VRRP网关的下行端口连接的OLT的主用PON端口的数量，以此类推。
本实施例中，所述VRRP网关组的主备倒换条件例如可包括如下条件中的至少一个：
第一条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量超过第一阈值。或者，与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量，相对于与所述VRRP网关组关联的主用PON链路总数量的占比超过第二阈值。
第二条件：与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量超过第三阈值。或者，与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量，相对于与所述VRRP网关组关联的备用PON链路总数量的占比超过第四阈值。
第三条件：与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量少于第五阈值。或者，与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量，相对于与所述VRRP网关组关联的主用PON链路 总数量的占比小于第六阈值。
第四条件：与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量少于第七阈值。或者，与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量，相对于与所述VRRP网关组关联的被用PON链路总数量的占比少于第八个阈值。
第五条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量超过与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量。
第六条件：与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量少于与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量。
其中，可根据不同应用场景的实际需要来设置上述提到的各种阈值的具体取值。
例如，第六阈值可以等于35％、42％、45％、50％、20％、49％、31％或者其他值。
例如，第五阈值可以等于5、8、10、4、9或者其他值。
例如，第四阈值可以等于50％、55％、56％、61％、65％、68％、70％或者其他值。
例如，第三阈值可以等于9、10、13、7、8或者其他值。
例如，第二阈值可以等于50％、55％、56％、61％、65％、68％、70％或者其他值。
例如，第一阈值可以等于9、11、13、7、8或者其他值。
可以理解，上述提到的各种阈值具体取值的举例是示意性的，实际应用中并不限于这些举例取值。
参见图3，图3为本发明的另一个实施例提供的另一种主备倒换控制方法的流程示意图。具体如图3举例所示，本发明实施例提供的另一种主备倒换控制方法可以包括：
301、与VRRP网关组中的备用VRRP网关的下行端口连接的光线路终端OLT向所述备用VRRP网关发送与所述VRRP网关组关联的PON保护组的工 作状态信息。
302、备用VRRP网关接收与所述备用VRRP网关的下行端口连接的所述OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息，所述备用VRRP网关根据接收到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足。
在一些可能实施方式中，与所述备用VRRP网关的下行端口连接的OLT与所述备用VRRP网关之间可创建控制面链路，所述备用VRRP网关可通过所述控制面链路，接收与所述备用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息。
与备用VRRP网关的下行端口连接的OLT可周期性或非周期性的主动向所述备用VRRP网关发送相应PON保护组的工作状态信息，与备用VRRP网关的下行端口连接的OLT也可在备用VRRP网关的请求下，向所述备用VRRP网关发送相应PON保护组的工作状态信息。
其中，所述VRRP网关组的主备倒换条件是与所述PON保护组的工作状态信息强相关的。可以根据实际应用场景需求来灵活的设定所述VRRP网关组的主备倒换条件。
303、所述备用VRRP网关在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
本实施例中，与所述VRRP网关组关联的所述PON保护组的工作状态信息例如包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和。
本实施例中，所述VRRP网关组的主备倒换条件例如可包括如下条件中的至少一个：
第一条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量超过第一阈值。或者，与所述VRRP网关组中的备用VRRP网关关 联的主用PON链路的数量，相对于与所述VRRP网关组关联的主用PON链路总数量的占比超过第二阈值。
第二条件：与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量超过第三阈值、或者，与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量，相对于与所述VRRP网关组关联的备用PON链路总数量的占比超过第四阈值。
第三条件：与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量少于第五阈值、或者，与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量，相对于与所述VRRP网关组关联的主用PON链路总数量的占比小于第六阈值。
第四条件：与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量少于第七阈值、或者，与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量，相对于与所述VRRP网关组关联的被用PON链路总数量的占比少于第八个阈值。
第五条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量超过与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量。
第六条件：与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量少于与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量。
第七条件：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和超过第九阈值。
第十条件：与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，小于与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和；
或者，与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，大于与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和，并且与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，减去 与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和而得到的差值小于第十三阈值；
或者，与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，大于与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和，并且与所述VRRP网关组中的备用VRRP网关和主用VRRP网关之间的直连链路的流量速率负荷上限，除以与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和而得到的商大于第十四阈值。
参见图4，图4为本发明的另一个实施例提供的另一种主备倒换控制方法的流程示意图。具体如图4举例所示，本发明实施例提供的另一种主备倒换控制方法可以包括：
401、与VRRP网关组之中的备用VRRP网关的下行端口连接的光线路终端OLT向所述备用VRRP网关发送与所述VRRP网关组关联的PON保护组的工作状态信息part1。
402、备用VRRP网关接收与所述备用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息part1，所述备用VRRP网关向所述VRRP网关组之中的主用VRRP网关转发所述工作状态信息part1。
在一些可能实施方式中，与所述备用VRRP网关的下行端口连接的OLT与所述备用VRRP网关之间可创建控制面链路，所述备用VRRP网关可通过所述控制面链路S1，接收与所述备用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息part1。
其中，在本实施例的举例方案中，所述工作状态信息part1例如可以包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和(或与所述VRRP网关组中的备用VRRP网关关联的每个主用PON 链路的流量速率)。
403、与VRRP网关组中的主用VRRP网关的下行端口连接的光线路终端OLT向所述主用VRRP网关发送与所述VRRP网关组关联的PON保护组的工作状态信息part2。
其中，在本实施例的举例方案中，所述工作状态信息part2例如可以包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和(或与所述VRRP网关组中的主用VRRP网关关联的每个主用PON链路的流量速率)。
404、主用VRRP网关接收与所述主用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息part2，主用VRRP网关接收所述备用VRRP网关转发的所述工作状态信息part1。所述主用VRRP网关根据接收到的所述工作状态信息part1和所述工作状态信息part2确定所述VRRP网关组的主备倒换条件是否被满足。
在一些可能实施方式中，与所述主用VRRP网关的下行端口连接的OLT与所述主用VRRP网关之间可创建控制面链路，所述主用VRRP网关可通过所述控制面链路，接收与所述主用VRRP网关的下行端口连接的光线路终端发送的与所述VRRP网关组关联的PON保护组的工作状态信息part2。
405、所述主用VRRP网关在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
本实施例中，所述VRRP网关组的主备倒换条件例如可包括如下条件中的至少一个：
第一条件、第二条件、第三条件、第四条件、第无条件、第六条件、第七条件、第八条件、第九条件和第十条件。
参见图5，图5为本发明的另一个实施例提供的另一种主备倒换控制方法的流程示意图。具体如图5举例所示，本发明实施例提供的另一种主备倒换控 制方法可以包括：
501、与VRRP网关组之中的主用VRRP网关的下行端口连接的OLT向所述主用VRRP网关发送与所述VRRP网关组关联的PON保护组的工作状态信息part2。
502、主用VRRP网关接收与所述主用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息part1，所述主用VRRP网关向所述VRRP网关组之中的备用VRRP网关转发所述工作状态信息part2。
在一些可能实施方式中，与所述主用VRRP网关的下行端口连接的OLT与所述主用VRRP网关之间可创建控制面链路，所述主用VRRP网关可通过所述控制面链路，接收与所述主用VRRP网关的下行端口连接的光线路终端发送的与所述VRRP网关组关联的PON保护组的工作状态信息part2。
其中，在本实施例的举例方案中，所述工作状态信息part2例如可以包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和(或与所述VRRP网关组中的主用VRRP网关关联的每个主用PON链路的流量速率)。
503、与VRRP网关组之中的备用VRRP网关的下行端口连接的OLT向所述备用VRRP网关发送与所述VRRP网关组关联的PON保护组的工作状态信息part1。
其中，在本实施例的举例方案中，所述工作状态信息part1例如可以包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流 量速率总和(或与所述VRRP网关组中的备用VRRP网关关联的每个主用PON链路的流量速率)。
504、备用VRRP网关接收与所述备用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息part1，备用VRRP网关接收所述主用VRRP网关转发的所述工作状态信息part2。所述备用VRRP网关根据接收到的所述工作状态信息part1和所述工作状态信息part2确定所述VRRP网关组的主备倒换条件是否被满足。
在一些可能实施方式中，与所述备用VRRP网关的下行端口连接的OLT与所述备用VRRP网关之间可创建控制面链路，所述备用VRRP网关可通过所述控制面链路S1，接收与所述备用VRRP网关的下行端口连接的OLT发送的与所述VRRP网关组关联的PON保护组的工作状态信息part1。
505、所述备用VRRP网关在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
本实施例中，所述VRRP网关组的主备倒换条件例如可包括如下条件中的至少一个：
第一条件、第二条件、第三条件、第四条件、第无条件、第六条件、第七条件、第八条件、第九条件和第十条件。
下面还提供用于实施上述方案的相关装置。
参见图6，本发明实施例提供一种主备切换控制装置600包括：
收集单元610，用于收集与VRRP网关组关联的无源光网络PON保护组的工作状态信息。
确定单元620，用于根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足。
控制单元630，用于在所述确定单元确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
其中，主备倒换控制装置可为VRRP网关组中的主用VRRP网关或者备用VRRP网关。或者，主备倒换控制装置可部署于VRRP网关组中的主用VRRP网关或者备用VRRP网关之中。
例如，所述收集单元可以具体用于，接收与所述VRRP网关组关联的所述 PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
例如所述收集单元接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息包括：基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
本实施例中，收集单元610收集到的所述PON保护组的工作状态信息的具体内容可参考上述实施例中的相关描述。所述VRRP网关组的主备倒换条件也可参考上述实施例中的相关描述，此处不再赘述。
参见图7，本发明实施例提供一种主备切换控制装置700包括：
处理器720和通信接口710。
处理器720主要控制主备切换控制装置700的操作。处理器720还可称为中央处理单元(CPU，Central Processing Unit)。具体的应用中主备切换控制装置700的各个组件例如可通过总线系统耦合在一起，其中，总线系统除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。
上述本发明实施例揭示的方法可应用于处理器720中，或者由处理器720和通信接口710配合实现。处理器720可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的一些步骤可以通过处理器720中的硬件的集成逻辑电路或者软件形式的指令完成。其中，上述的处理器720可以是通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，例如处理器720可读取存储器中的信息，结合其 硬件完成上述方法的步骤。
具体的，通信接口710，用于收集与虚拟路由冗余协议VRRP网关组关联的无源光网络PON保护组的工作状态信息。
处理器720，用于根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足；在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
例如，通信接口710可以具体用于，接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息，或，接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
例如通信接口710具体用于，基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
其中，VRRP网关和光线路终端之间通过创建控制面链路来交换PON保护组的工作状态信息，有利于比较实时便捷的实现PON保护组的工作状态信息有效交换。
本实施例中，通信接口710收集到的所述PON保护组的工作状态信息的具体内容可参考上述实施例中的相关描述。所述VRRP网关组的主备倒换条件也可参考上述实施例中的相关描述，此处不再赘述。
可以理解的是，图7仅仅示出了主备切换控制装置的简化设计。在实际应用中，主备切换控制装置可以包含任意数量的发射器，接收器，处理器，控制器，存储器，通信单元等，而所有可以实现本发明的基站都在本发明的保护范围之内。
参见图8，本发明实施例还提供一种通信系统，包括：
VRRP网关组，其中，所述VRRP网关组包括第一VRRP网关810和第二VRRP网关820，其中，第一VRRP网关810和第二VRRP网关820中的其中 一个为主用VRRP网关，另一个为备用VRRP网关，所述VRRP网关组中的其中一个VRRP网关中可部署有本发明实施例提供的任意一种主备倒换控制装置。
进一步的，本发明的实施例的还提供了一种主备切换控制装置。所述装置包括的单元能够执行主备切换控制方法。
进一步的，本发明实施例提供了一种计算机可读存储介质，所述计算机可读存储介质存储了程序代码。所述程序代码包括用于执行主备切换控制方法的指令。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可结合或者可以集成到另一个系统，或一些特征可以忽略或不执行。另一点，所显示或讨论的相互之间的间接耦合或者直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例的方案的目的。
另外，在本发明各实施例中的各功能单元可集成在一个处理单元中，也可以是各单元单独物理存在，也可两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，或者也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储 介质中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (12)

  1. 一种主备倒换控制方法，其特征在于，包括：
    收集与虚拟路由冗余协议VRRP网关组关联的无源光网络PON保护组的工作状态信息；
    根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足；
    在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
  2. 根据权利要求1所述的方法，其特征在于，收集与VRRP网关组关联的PON保护组的工作工作状态信息，包括：
    接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
  3. 根据权利要求2所述的方法，其特征在于，
    所述接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，包括：基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，每个PON保护组对应一条主用PON链路和一条备用PON链路；
    其中，与所述VRRP网关组关联的所述PON保护组的工作状态信息包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和。
  5. 一种主备倒换控制装置，其特征在于，包括：
    收集单元，用于收集与虚拟路由冗余协议VRRP网关组关联的无源光网络PON保护组的工作状态信息；
    确定单元，用于根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足；
    控制单元，用于在所述确定单元确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
  6. 根据权利要求5所述的装置，其特征在于，所述收集单元具体用于接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
  7. 根据权利要求6所述的装置，其特征在于，
    所述收集单元接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，包括：基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
  8. 根据权利要求5至7任一项所述的装置，其特征在于，每个PON保护组对应一条主用PON链路和一条备用PON链路；
    其中，与所述VRRP网关组关联的所述PON保护组的工作状态信息包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和。
  9. 一种主备倒换控制装置，其特征在于，包括：
    通信接口，用于收集与虚拟路由冗余协议VRRP网关组关联的无源光网络 PON保护组的工作状态信息；
    处理器，用于根据收集到的所述PON保护组的工作状态信息确定所述VRRP网关组的主备倒换条件是否被满足；在确定所述VRRP网关组的主备倒换条件被满足的情况下执行所述VRRP网关组的主备倒换。
  10. 根据权利要求9所述的装置，其特征在于，所述通信接口具体用于接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的备用VRRP网关发送的所述PON保护组的工作状态信息，或接收所述VRRP网关组中的主用VRRP网关发送的所述PON保护组的工作状态信息。
  11. 根据权利要求10所述的装置，其特征在于，
    所述通信接口具体用于，基于创建的控制面链路接收与所述VRRP网关组关联的所述PON保护组所属的光线路终端发送的所述PON保护组的工作状态信息。
  12. 根据权利要求9至11任一项所述的装置，其特征在于，每个PON保护组对应一条主用PON链路和一条备用PON链路；
    其中，与所述VRRP网关组关联的所述PON保护组的工作状态信息包括如下信息之中的至少一种：与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的备用PON链路的数量、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的数量、与所述VRRP网关组中的备用VRRP网关关联的主用PON链路的流量速率总和、与所述VRRP网关组中的主用VRRP网关关联的主用PON链路的流量速率总和。
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