WO2018214423A1 - Potn service forwarding system, and method of service forwarding, configuration issuing, and providing protection - Google Patents

Potn service forwarding system, and method of service forwarding, configuration issuing, and providing protection Download PDF

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Publication number
WO2018214423A1
WO2018214423A1 PCT/CN2017/111556 CN2017111556W WO2018214423A1 WO 2018214423 A1 WO2018214423 A1 WO 2018214423A1 CN 2017111556 W CN2017111556 W CN 2017111556W WO 2018214423 A1 WO2018214423 A1 WO 2018214423A1
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Prior art keywords
interface
service
configuration
virtual bridge
multicast
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PCT/CN2017/111556
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French (fr)
Chinese (zh)
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饶冀
董晶晶
陶雪丽
宁辉
冯建波
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烽火通信科技股份有限公司
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Priority to RU2019108972A priority Critical patent/RU2706477C1/en
Priority to MA44952A priority patent/MA44952B1/en
Priority to BR112019005317A priority patent/BR112019005317A2/en
Publication of WO2018214423A1 publication Critical patent/WO2018214423A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/06—Deflection routing, e.g. hot-potato routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H04J3/1658—Optical Transport Network [OTN] carrying packets or ATM cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1652—Optical Transport Network [OTN]
    • H04J3/1664—Optical Transport Network [OTN] carrying hybrid payloads, e.g. different types of packets or carrying frames and packets in the paylaod
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/22—Alternate routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
    • 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
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0057—Operations, administration and maintenance [OAM]
    • H04J2203/006—Fault tolerance and recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001—Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073—Services, e.g. multimedia, GOS, QOS
    • H04J2203/0082—Interaction of SDH with non-ATM protocols
    • H04J2203/0085—Support of Ethernet

Definitions

  • the present invention relates to the field of POTN transmission technologies, and in particular, to a POTN service forwarding system, a service forwarding, configuration delivery, and a protection method.
  • POTN combines the optical layer (WDM), OTN and SDH layers, and packet transport layer (MPLS-TP, ETH) network functions. It has the ability to exchange and schedule TDM (ODUk) and packet (MPLS-TP, ETH). Unified and flexible delivery of various services such as grouping, OTN, and SDH.
  • the traditional POTN equipment is designed based on the TDM (ODUk)/Packet dual plane switching architecture, that is, packet and TDM (ODUk) services are forwarded through different switching disks.
  • the dual-plane switching system is simple in design and easy to implement, the service organization scheduling is very inflexible due to different switching planes, and the scalability is poor, and there are defects such as high power consumption of the device and high OPEX.
  • the POTN service forwarding can be completed only by the single-board switching fabric, which is limited by the density of the switch board, the power consumption, and the cost.
  • the exit direction of the present invention is to provide a The POTN service forwarding system and the service forwarding, configuration delivery, and protection methods implement POTN service forwarding through a single-plane switching architecture, and improve system operation efficiency and stability.
  • a POTN service forwarding system including an Ethernet tributary disk, an exchange disk, and an OTN circuit disk;
  • An Ethernet tributary disk for transmitting packet traffic received from the Ethernet to the switch disk in the uplink direction, and transmitting the data packet received from the switch disk to the Ethernet network in the lower direction;
  • An exchange disk for implementing data interaction between an Ethernet tributary disk and an OTN line disk includes at least two branch side backplane ports connecting the Ethernet tributary disks and at least Four line-side backplane ports connected to the OTN line disks; one of the branch-side backplane ports is connected to one MPLS service forwarding channel, and the other of the branch-side backplane ports is connected to an Ethernet service forwarding channel;
  • the MPLS service forwarding channel is further connected to two virtual bridge interfaces, each of the virtual bridge interfaces connecting two of the line side backplane ports; and the Ethernet service forwarding channel is connected to one of the two virtual bridge interfaces;
  • a plurality of OTN line disks are used to map packet services to the ODUK channel in the uplink direction, and to demap the packet services from the ODUK channel in the lower direction.
  • the MPLS service forwarding channel includes a first AC logical interface, a first virtual forwarding instance, a PW logical interface, and a pair of primary and backup LSP interfaces connected to the PW logical interface.
  • the primary and backup LSP interfaces are each connected to one virtual bridge interface;
  • the Ethernet service forwarding channel includes a second AC logical interface, a second virtual forwarding instance, and a third AC logical interface that are sequentially connected, and the third AC logical interface connects one of the two virtual bridge interfaces.
  • the invention also discloses a service forwarding method using a POTN service forwarding system, where the service forwarding method includes service forwarding in an outgoing direction, and the service forwarding in the outgoing direction
  • the specific process of sending includes:
  • A1 receiving a packet service through the branch side backplane port, and obtaining an AC logical interface matched by the packet service according to the branch side backplane port of the packet service and the characteristic value of the packet service;
  • step A2 obtaining the virtual forwarding instance bound by the AC logical interface obtained in step A1;
  • step A3 according to the virtual forwarding instance obtained in step A2 and the characteristic value of the packet service to obtain the logical interface in the export direction; if it is an Ethernet service, proceeds to step A4, if it is an MPLS service, proceeds to step A8;
  • the logical interface in the egress direction is an AC logical interface connected to the virtual forwarding instance obtained in step A2;
  • A5 View the physical entry information corresponding to the AC logical interface obtained in step A4, and determine the virtual bridge interface in the egress direction and the encapsulation information of the AC logical interface.
  • A6 Check the information of the anchor entry corresponding to the virtual bridge interface obtained in step A5, and determine the line side backplane port in the exit direction.
  • the logical interface in the egress direction is a PW logical interface connected to the virtual forwarding instance obtained in step A2;
  • step A9 Check the physical entry information corresponding to the PW logical interface obtained in step A8, and determine the LSP interface bound to the PW and the encapsulation information of the PW.
  • A10 Check the physical entry information corresponding to the LSP interface obtained in step A9, and determine the line side backplane interface in the egress direction and the encapsulation information of the LSP.
  • the packet side service is forwarded to the ODUK channel through the line side backplane port obtained in step A10, and ends.
  • the service forwarding method includes service forwarding in the down-to-talk direction
  • the specific process of forwarding the service in the down-to-talk direction includes:
  • the data packet is received by the virtual bridge interface, and the logical interface matching the virtual bridge interface is obtained according to the VLANDOMAIN configured by the line side backplane port corresponding to the virtual bridge interface and the characteristic value of the data packet; if it is an Ethernet service Go to step B2, if it is MPLS service, go to step B8;
  • the logical interface that matches the virtual bridge interface is an AC logical interface that is connected to the virtual bridge interface in step B1.
  • step B3 determining the virtual forwarding instance bound by the AC logical interface obtained in step B2;
  • step B4 the virtual forwarding instance obtained in step B3 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
  • the OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B4, and ends;
  • the logical interface that matches the virtual bridge interface is an LSP interface that is connected to the virtual bridge interface in step B1.
  • step B7 through the LSP interface obtained in step B6, parsing the LSP and the PW label layer by layer to obtain the virtual forwarding instance bound thereto;
  • step B8 the virtual forwarding instance obtained in step B7 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
  • the present invention also discloses a configuration and delivery method using a POTN service forwarding system, where the configuration delivery method includes the configuration of the outgoing call direction, and the specific process of sending the outgoing call direction includes:
  • step C1 the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step C2, if the Ethernet service configuration proceeds to step C7, if the OTN service configuration proceeds to step C12;
  • step C4 according to the multicast ID to determine whether the multicast has been created, and if so, proceed directly to step C6; if not, proceed to step C5;
  • step C9 according to the multicast ID to determine whether the multicast has been created, and if so, go directly to step C11; if not, proceed to step C10;
  • the destination port type of the AC logical interface is configured as multicast, and the corresponding driver interface function is called, and the MPLS service configuration is completed.
  • C13 Convert the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and invoke a driver interface function to create a multicast;
  • step C14 judging whether the multicast has been created according to the multicast ID, and if so, proceeding to step C15; if not, proceeding to step C18;
  • step S16 determining whether there is a difference in the configuration of the OTN service configuration before; if yes, proceeding to step S16, if not, proceeding to step S17;
  • the configuration and delivery method includes the configuration of the outgoing call direction, and the specific process of sending the outgoing call direction includes:
  • step D1 the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step D2, if the Ethernet service configuration proceeds to step D3, if the OTN service configuration proceeds to step D6;
  • D5. Configure the ingress port configuration rule of the AC logical interface as VLANDOMAIN and set its ID. Call the driver interface function to complete the Ethernet service configuration and end.
  • the virtual bridge interface ID is converted into a VLANDOMAIN ID according to a preset mapping rule, and the driver interface function is called to update the VLANDOMAIN domain of the primary and backup line side backplane ports corresponding to the virtual bridge interface; the OTN service configuration is completed and ends.
  • the invention also discloses a protection method using a POTN service forwarding system,
  • the protection method includes a protection process in the upper direction, and the specific process of the protection process in the upper direction includes:
  • step E1 detecting whether there is a channel fault, and processing according to the fault type; if the LSP channel is faulty, the process proceeds to step E2; if the ODUK channel is faulty, the process ends;
  • the protection method includes a protection process in a down-line direction, and the specific process of the protection process in the down-line direction includes:
  • step F1 detecting whether there is a channel fault, and processing according to the fault type; if the ODUK channel is faulty, the process proceeds to step E2; if the LSP channel is faulty, the process ends;
  • step F3 determine the direction of the switch, if the switch to the main use, then proceeds to step F4, otherwise proceeds to step F5;
  • the VLANDOMAIN of the main line side backplane port corresponding to the virtual bridge interface is updated to an invalid value
  • the VLANDOMAIN of the spare line side backplane port is updated to the VLANDOMAIN value of the virtual bridge interface, and ends.
  • the POVE is instantiated into a multicast to implement bridging, and the packet service uses the multicast as an egress of the service channel in the outgoing direction, and the OTN service uses the multicast as a source port for interacting with the ODUK channel;
  • the word direction instantiates POVE as VLANDOMAIN is used for bridging.
  • the OTN service maps the line-side backplane port connected to the ODUK channel to the VLANDOMAIN.
  • the packet service uses the VLANDOMIAN as a common physical port to complete the classification processing of the access packet service.
  • the present invention adds a new port configuration type to the packet service, the virtual bridge interface, and the other configurations are unchanged.
  • the virtual bridge interface corresponding to the active and standby ODUK is added to complete the OTN service crossover and the ODUK main. Backup protection.
  • the packet service is associated with the OTN service cross group through the same virtual bridge interface.
  • the line-side backplane interface corresponding to the virtual bridge interface needs to be modified by the OTN service configuration.
  • the virtual service interface ID does not need to be updated.
  • the configuration and de-coupling of the packet service and the OTN service are implemented by the service configuration management method, which solves the timing problem caused by the incremental delivery of the service configuration.
  • the service forwarding process of the present invention is completed in a single process, and has no traditional loopback processing, thereby high system operation efficiency and stability.
  • the multicast that is instantiated for POVE is completed through the ingress multicast, and does not affect the implementation of the QOS function.
  • FIG. 1 is a schematic structural diagram of a POTN service forwarding system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a switch disk of a POTN service forwarding system according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a service forwarding method in an uplink direction according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a service forwarding method in a down-call direction according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for sending a sending direction in an uplink direction according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart diagram of a method for sending a drop-down direction in an embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a method for protecting an upper call direction according to an embodiment of the present invention.
  • FIG. 8 is a schematic flowchart diagram of a method for protecting a call direction in an embodiment of the present invention.
  • an embodiment of the present invention provides a POTN service forwarding system, including an Ethernet tributary disk, an exchange disk, and an OTN circuit disk.
  • An Ethernet tributary disk for transmitting packet traffic received from the Ethernet to the switch disk in the uplink direction, and transmitting the data packet received from the switch disk to the Ethernet network in the lower direction;
  • An exchange disk for implementing data interaction between an Ethernet tributary disk and an OTN line disk includes at least two branch side backplane ports connecting the Ethernet tributary disks and at least Four line-side backplane ports connected to the OTN line disks; one of the branch-side backplane ports is connected to one MPLS service forwarding channel, and the other of the branch-side backplane ports is connected to an Ethernet service forwarding channel;
  • the MPLS service forwarding channel is further connected to two virtual bridge interfaces, each of the virtual bridge interfaces connecting two of the line side backplane ports; and the Ethernet service forwarding channel is connected to one of the two virtual bridge interfaces;
  • a plurality of OTN line disks are used to map packet services to the ODUK channel in the uplink direction, and to demap the packet services from the ODUK channel in the lower direction.
  • the MPLS service forwarding channel includes a first AC logical interface, a first virtual forwarding instance, a PW logical interface, and a pair of primary and backup LSP interfaces connected to the PW logical interface.
  • the primary and backup LSP interfaces are each connected to one of the virtual bridge interfaces;
  • the Ethernet service forwarding channel includes a second AC logical interface, a second virtual forwarding instance, and a third AC logical interface that are sequentially connected, and the third AC logical interface connects one of the two virtual bridge interfaces.
  • an embodiment of the present invention further discloses a POTN service forwarding system.
  • the service forwarding method includes: the service forwarding method includes the service forwarding in the uplink direction, and the specific process of the service forwarding in the uplink direction includes:
  • A1 receiving a packet service through the branch side backplane port, and obtaining an AC logical interface matched by the packet service according to the branch side backplane port of the packet service and the characteristic value of the packet service;
  • step A2 obtaining the virtual forwarding instance bound by the AC logical interface obtained in step A1;
  • step A3 according to the virtual forwarding instance obtained in step A2 and the characteristic value of the packet service to obtain the logical interface in the export direction; if it is an Ethernet service, proceeds to step A4, if it is an MPLS service, proceeds to step A8;
  • the logical interface in the egress direction is an AC logical interface connected to the virtual forwarding instance obtained in step A2;
  • A5 View the physical entry information corresponding to the AC logical interface obtained in step A4, and determine the virtual bridge interface in the egress direction and the encapsulation information of the AC logical interface.
  • A6 Check the information of the anchor entry corresponding to the virtual bridge interface obtained in step A5, and determine the line side backplane port in the exit direction.
  • the logical interface in the egress direction is a PW logical interface connected to the virtual forwarding instance obtained in step A2;
  • step A9 Check the physical entry information corresponding to the PW logical interface obtained in step A8, and determine the LSP interface bound to the PW and the encapsulation information of the PW.
  • A10 Check the physical entry information corresponding to the LSP interface obtained in step A9, and determine the line side backplane interface in the egress direction and the encapsulation information of the LSP.
  • the service forwarding method includes service forwarding in the down-to-talk direction, and the specific process of forwarding the service in the down-to-talk direction includes:
  • the data packet is received by the virtual bridge interface, and the logical interface matching the virtual bridge interface is obtained according to the VLANDOMAIN configured by the line side backplane port corresponding to the virtual bridge interface and the characteristic value of the data packet; if it is an Ethernet service Go to step B2, if it is MPLS service, go to step B8;
  • the logical interface that matches the virtual bridge interface is an AC logical interface that is connected to the virtual bridge interface in step B1.
  • step B3 determining the virtual forwarding instance bound by the AC logical interface obtained in step B2;
  • step B4 the virtual forwarding instance obtained in step B3 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
  • the OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B4, and ends;
  • the logical interface that matches the virtual bridge interface is an LSP interface that is connected to the virtual bridge interface in step B1.
  • step B7 through the LSP interface obtained in step B6, parsing the LSP and the PW label layer by layer to obtain the virtual forwarding instance bound thereto;
  • step B8 the virtual forwarding instance obtained in step B7 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
  • the embodiment of the present invention further discloses a configuration and delivery method of using a POTN service forwarding system.
  • the specific process of sending the outgoing direction configuration includes:
  • step C1 the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step C2, if the Ethernet service configuration proceeds to step C7, if the OTN service configuration proceeds to step C12;
  • step C4 according to the multicast ID to determine whether the multicast has been created, and if so, proceed directly to step C6; if not, proceed to step C5;
  • step C9 according to the multicast ID to determine whether the multicast has been created, and if so, go directly to step C11; if not, proceed to step C10;
  • the destination port type of the AC logical interface is configured as multicast, and the corresponding driver interface function is called, and the MPLS service configuration is completed.
  • C13 Convert the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and invoke a driver interface function to create a multicast;
  • step C14 judging whether the multicast has been created according to the multicast ID, and if so, entering the step C15; if not, proceed to step C18;
  • step S16 determining whether there is a difference in the configuration of the OTN service configuration before; if yes, proceeding to step S16, if not, proceeding to step S17;
  • the configuration delivery method includes the configuration of the outgoing call direction, and the specific process of sending the outgoing call direction includes:
  • step D1 the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step D2, if the Ethernet service configuration proceeds to step D3, if the OTN service configuration proceeds to step D6;
  • D5. Configure the ingress port configuration rule of the AC logical interface as VLANDOMAIN and set its ID. Call the driver interface function to complete the Ethernet service configuration and end.
  • the virtual bridge interface ID is converted into a VLANDOMAIN ID according to a preset mapping rule, and the driver interface function is called to update the VLANDOMAIN domain of the primary and backup line side backplane ports corresponding to the virtual bridge interface; the OTN service configuration is completed and ends.
  • the embodiment of the present invention further discloses a protection method using a POTN service forwarding system, where the protection method includes a protection process in an uplink direction, and the specific process of the protection process in the uplink direction includes:
  • step E1 detecting whether there is a channel fault, and processing according to the fault type; if the LSP channel is faulty, the process proceeds to step E2; if the ODUK channel is faulty, the process ends;
  • E3 write the FRR table, trigger the chip to switch the service forwarding path, complete the switching, and end.
  • the protection method includes a protection process in a down direction, and the specific process of the protection process in the down direction includes:
  • step F1 detecting whether there is a channel fault, and processing according to the fault type; if the ODUK channel is faulty, the process proceeds to step E2; if the LSP channel is faulty, the process ends;
  • step F3 determine the direction of the switch, if the switch to the main use, then proceeds to step F4, otherwise proceeds to step F5;
  • the VLANDOMAIN of the main line side backplane port corresponding to the virtual bridge interface is updated to an invalid value
  • the VLANDOMAIN of the spare line side backplane port is updated to the VLANDOMAIN value of the virtual bridge interface, and ends.

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Abstract

The present invention relates to the technical field of POTN transmission, and disclosed are a POTN service forwarding system and forwarding method. The system comprises an ethernet tributary unit, switch unit, and OTN line unit. In the present invention, POVE is instantiated as a multicast in an uplink direction to enable bridge connection, a packet service employs the multicast as an exit port of an uplink service channel, and an OTN service employs the multicast as a source port of interaction with an ODUk channel. In a downlink direction, the POVE is instantiated as VLANDOMAIN to enable bridge connection, the OTN service maps a line-side backplane port connected to the ODUk channel to the VLANDOMAIN, and the packet service employs the VLANDOMAIN as a common physical port to complete classification for accessing the packet service. Also disclosed in the present invention is a POTN service forwarding method.

Description

POTN业务转发系统及业务转发、配置下发、保护方法POTN service forwarding system, service forwarding, configuration delivery, and protection method 技术领域Technical field
本发明涉及POTN传输技术领域，具体涉及一种POTN业务转发系统及业务转发、配置下发、保护方法。The present invention relates to the field of POTN transmission technologies, and in particular, to a POTN service forwarding system, a service forwarding, configuration delivery, and a protection method.
背景技术Background technique
POTN融合了光层(WDM)、OTN和SDH层、分组传送层(MPLS-TP，ETH)的网络功能，具有对TDM(ODUk)、分组(MPLS-TP，ETH)的交换调度能力，实现对分组、OTN、SDH等各类业务的统一和灵活传送功能。POTN combines the optical layer (WDM), OTN and SDH layers, and packet transport layer (MPLS-TP, ETH) network functions. It has the ability to exchange and schedule TDM (ODUk) and packet (MPLS-TP, ETH). Unified and flexible delivery of various services such as grouping, OTN, and SDH.
传统的POTN设备基于TDM(ODUk)/Packet双平面交换架构设计，即分组及TDM(ODUk)业务通过不同交换盘转发。双平面交换系统虽然设计简单，易于实现，但由于需通过不同交换平面，业务组织调度非常不灵活，可扩展性差，存在设备功耗大、OPEX高等缺陷。The traditional POTN equipment is designed based on the TDM (ODUk)/Packet dual plane switching architecture, that is, packet and TDM (ODUk) services are forwarded through different switching disks. Although the dual-plane switching system is simple in design and easy to implement, the service organization scheduling is very inflexible due to different switching planes, and the scalability is poor, and there are defects such as high power consumption of the device and high OPEX.
同时，对于集中式POTN设备而言，受制于交换板卡密度、功耗及成本等因素，往往只能采用即单交换盘，即单平面交换架构完成POTN业务转发。At the same time, for the centralized POTN device, the POTN service forwarding can be completed only by the single-board switching fabric, which is limited by the density of the switch board, the power consumption, and the cost.
因此，亟需一种采用单平面交换架构完成POTN业务转发实现方案。Therefore, there is a need for a POTN service forwarding implementation scheme using a single plane switching architecture.
发明内容Summary of the invention
针对现有技术中存在的缺陷，本发明的出口方向的在于提供一种 POTN业务转发系统及业务转发、配置下发、保护方法，实现通过单平面交换架构完成POTN业务转发，且提高了系统运行效率及稳定性。In view of the defects existing in the prior art, the exit direction of the present invention is to provide a The POTN service forwarding system and the service forwarding, configuration delivery, and protection methods implement POTN service forwarding through a single-plane switching architecture, and improve system operation efficiency and stability.
为达到以上出口方向的，本发明采取的技术方案是：一种POTN业务转发系统，包括以太网支路盘，交换盘和OTN线路盘；To achieve the above export direction, the technical solution adopted by the present invention is: a POTN service forwarding system, including an Ethernet tributary disk, an exchange disk, and an OTN circuit disk;
以太网支路盘，所述以太网支路盘用于在上话方向将从以太网接收的分组业务传递至交换盘，在下话方向将从交换盘接收的数据包传递至以太网；An Ethernet tributary disk for transmitting packet traffic received from the Ethernet to the switch disk in the uplink direction, and transmitting the data packet received from the switch disk to the Ethernet network in the lower direction;
交换盘，所述交换盘用于实现以太网支路盘和OTN线路盘之间的数据交互；所述交换盘包括至少两个连接所述以太网支路盘的支路侧背板口和至少四个连接所述OTN线路盘的线路侧背板口；其中一条所述支路侧背板口连接一条MPLS业务转发通道，另一条所述支路侧背板口连接一条以太网业务转发通道；所述MPLS业务转发通道还连接两个虚拟桥接口，每个所述虚拟桥接口连接两个所述线路侧背板口；所述以太网业务转发通道连接两个所述虚拟桥接口之一；An exchange disk for implementing data interaction between an Ethernet tributary disk and an OTN line disk; the switch disk includes at least two branch side backplane ports connecting the Ethernet tributary disks and at least Four line-side backplane ports connected to the OTN line disks; one of the branch-side backplane ports is connected to one MPLS service forwarding channel, and the other of the branch-side backplane ports is connected to an Ethernet service forwarding channel; The MPLS service forwarding channel is further connected to two virtual bridge interfaces, each of the virtual bridge interfaces connecting two of the line side backplane ports; and the Ethernet service forwarding channel is connected to one of the two virtual bridge interfaces;
多个OTN线路盘，多个所述OTN线路盘用于在上话方向将分组业务映射至ODUK通道，在下话方向从ODUK通道解映射分组业务。A plurality of OTN line disks, the plurality of OTN line disks are used to map packet services to the ODUK channel in the uplink direction, and to demap the packet services from the ODUK channel in the lower direction.
在上述技术方案的基础上，所述MPLS业务转发通道包括依次连接的第一AC逻辑接口、第一虚拟转发实例、PW逻辑接口和与所述PW逻辑接口连接的一对主、备LSP接口，所述主、备LSP接口各连接一个所述虚拟桥接口；On the basis of the foregoing technical solution, the MPLS service forwarding channel includes a first AC logical interface, a first virtual forwarding instance, a PW logical interface, and a pair of primary and backup LSP interfaces connected to the PW logical interface. The primary and backup LSP interfaces are each connected to one virtual bridge interface;
所述以太网业务转发通道包括依次连接的第二AC逻辑接口、第二虚拟转发实例和第三AC逻辑接口，所述第三AC逻辑接口连接两个所述虚拟桥接口之一。The Ethernet service forwarding channel includes a second AC logical interface, a second virtual forwarding instance, and a third AC logical interface that are sequentially connected, and the third AC logical interface connects one of the two virtual bridge interfaces.
本发明还公开了一种采用POTN业务转发系统的业务转发方法，所述业务转发方法包括上话方向的业务转发，所述上话方向的业务转 发的具体过程包括：The invention also discloses a service forwarding method using a POTN service forwarding system, where the service forwarding method includes service forwarding in an outgoing direction, and the service forwarding in the outgoing direction The specific process of sending includes:
A1，通过支路侧背板口接收分组业务，根据分组业务所通过的支路侧背板口以及分组业务的特征值得到分组业务匹配的AC逻辑接口；A1, receiving a packet service through the branch side backplane port, and obtaining an AC logical interface matched by the packet service according to the branch side backplane port of the packet service and the characteristic value of the packet service;
A2，通过步骤A1得到的AC逻辑接口得到其绑定的虚拟转发实例；A2, obtaining the virtual forwarding instance bound by the AC logical interface obtained in step A1;
A3，根据步骤A2中得到的虚拟转发实例以及分组业务的特征值得到出口方向的逻辑接口；若为以太网业务，进入步骤A4，若为MPLS业务，进入步骤A8；A3, according to the virtual forwarding instance obtained in step A2 and the characteristic value of the packet service to obtain the logical interface in the export direction; if it is an Ethernet service, proceeds to step A4, if it is an MPLS service, proceeds to step A8;
A4，所述出口方向的逻辑接口为与步骤A2中得到的虚拟转发实例连接的AC逻辑接口；A4, the logical interface in the egress direction is an AC logical interface connected to the virtual forwarding instance obtained in step A2;
A5，查看步骤A4得到的AC逻辑接口对应的物理表项信息，确定出口方向的虚拟桥接口以及AC逻辑接口的封装信息；A5: View the physical entry information corresponding to the AC logical interface obtained in step A4, and determine the virtual bridge interface in the egress direction and the encapsulation information of the AC logical interface.
A6，查看步骤A5得到的虚拟桥接口对应的主播表项信息，确定出口方向的线路侧背板口；A6: Check the information of the anchor entry corresponding to the virtual bridge interface obtained in step A5, and determine the line side backplane port in the exit direction.
A7，通过步骤A6得到的线路侧背板口将分组业务转发至ODUK通道，结束；A7, forwarding the packet service to the ODUK channel through the line side backplane port obtained in step A6, and ending;
A8，所述出口方向的逻辑接口为与步骤A2中得到的虚拟转发实例连接的PW逻辑接口；A8, the logical interface in the egress direction is a PW logical interface connected to the virtual forwarding instance obtained in step A2;
A9，查看步骤A8得到的PW逻辑接口对应的物理表项信息，确定其绑定的LSP接口以及PW的封装信息；A9: Check the physical entry information corresponding to the PW logical interface obtained in step A8, and determine the LSP interface bound to the PW and the encapsulation information of the PW.
A10，查看步骤A9得到的LSP接口对应的物理表项信息，确定出口方向的线路侧背板口以及LSP的封装信息；A10: Check the physical entry information corresponding to the LSP interface obtained in step A9, and determine the line side backplane interface in the egress direction and the encapsulation information of the LSP.
A11，通过步骤A10得到的线路侧背板口将分组业务转发至ODUK通道，结束。 A11, the packet side service is forwarded to the ODUK channel through the line side backplane port obtained in step A10, and ends.
在上述技术方案的基础上，所述业务转发方法包括下话方向的业务转发，所述下话方向的业务转发的具体过程包括：On the basis of the foregoing technical solution, the service forwarding method includes service forwarding in the down-to-talk direction, and the specific process of forwarding the service in the down-to-talk direction includes:
B1，通过所述虚拟桥接口接收数据包，根据所述虚拟桥接口对应的线路侧背板口配置的VLANDOMAIN以及数据包的特征值得到与该虚拟桥接口匹配的逻辑接口；若为以太网业务，进入步骤B2，若为MPLS业务，进入步骤B8；B1, the data packet is received by the virtual bridge interface, and the logical interface matching the virtual bridge interface is obtained according to the VLANDOMAIN configured by the line side backplane port corresponding to the virtual bridge interface and the characteristic value of the data packet; if it is an Ethernet service Go to step B2, if it is MPLS service, go to step B8;
B2，与该虚拟桥接口匹配的逻辑接口为与步骤B1中所述虚拟桥接口连接的AC逻辑接口；B2. The logical interface that matches the virtual bridge interface is an AC logical interface that is connected to the virtual bridge interface in step B1.
B3，通过步骤B2中得到的AC逻辑接口确定其绑定的虚拟转发实例；B3, determining the virtual forwarding instance bound by the AC logical interface obtained in step B2;
B4，通过步骤B3中得到的虚拟转发实例以及数据包的特征值得出出口方向的AC逻辑接口和支路侧背板口；B4, the virtual forwarding instance obtained in step B3 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
B5，通过步骤B4得到的AC逻辑接口和支路侧背板口将OTN业务转发至以太网支路盘，结束；B5, the OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B4, and ends;
B6，与该虚拟桥接口匹配的逻辑接口为与步骤B1中所述虚拟桥接口连接的LSP接口；B6. The logical interface that matches the virtual bridge interface is an LSP interface that is connected to the virtual bridge interface in step B1.
B7，通过步骤B6中得到的LSP接口，逐层解析其LSP和PW标签得到其绑定的虚拟转发实例；B7, through the LSP interface obtained in step B6, parsing the LSP and the PW label layer by layer to obtain the virtual forwarding instance bound thereto;
B8，通过步骤B7中得到的虚拟转发实例以及数据包的特征值得出出口方向的AC逻辑接口和支路侧背板口；B8, the virtual forwarding instance obtained in step B7 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
B9，通过步骤B8得到的AC逻辑接口和支路侧背板口将OTN业务转发至以太网支路盘，结束。B9: The OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B8, and ends.
本发明还公开了一种采用POTN业务转发系统的配置下发方法，所述配置下发方法包括上话方向的配置下发，所述上话方向的配置下发的具体过程包括： The present invention also discloses a configuration and delivery method using a POTN service forwarding system, where the configuration delivery method includes the configuration of the outgoing call direction, and the specific process of sending the outgoing call direction includes:
C1，所述交换盘接收配置，根据配置类型分别处理，若为MPLS业务配置则进入步骤C2，若为以太网业务配置则进入步骤C7，若为OTN业务配置则进入步骤C12；C1, the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step C2, if the Ethernet service configuration proceeds to step C7, if the OTN service configuration proceeds to step C12;
C2，从LSP接口接收的配置中获取出口方向的虚拟桥接口ID；C2. Obtain a virtual bridge interface ID in an exit direction from a configuration received by the LSP interface.
C3，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C3, converting the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and calling a driver interface function to create a multicast;
C4，根据组播ID判断该组播是否已经创建，若是，直接进入步骤C6；若否，进入步骤C5；C4, according to the multicast ID to determine whether the multicast has been created, and if so, proceed directly to step C6; if not, proceed to step C5;
C5，创建组播，此时其成员为空；C5, create a multicast, at this time its members are empty;
C6，将LSP接口的目的端口类型配置为组播，并调用对应的驱动接口函数配置，MPLS业务配置完成，结束；C6: Configure the destination port type of the LSP interface as multicast, and invoke the corresponding driver interface function configuration. The MPLS service configuration is complete and ends.
C7，从AC逻辑接口接收的配置中获取出口方向的虚拟桥接口ID；C7, obtaining a virtual bridge interface ID in an exit direction from a configuration received by the AC logical interface;
C8，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C8, converting the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and calling a driver interface function to create a multicast;
C9，根据组播ID判断该组播是否已经创建，若是，直接进入步骤C11；若否，进入步骤C10；C9, according to the multicast ID to determine whether the multicast has been created, and if so, go directly to step C11; if not, proceed to step C10;
C10，创建组播，此时其成员为空；C10, create a multicast, at this time its members are empty;
C11，将AC逻辑接口的目的端口类型配置为组播，并调用对应的驱动接口函数配置，MPLS业务配置完成，结束；In C11, the destination port type of the AC logical interface is configured as multicast, and the corresponding driver interface function is called, and the MPLS service configuration is completed.
C12，从OTN业务配置中获取入口方向的虚拟桥接口ID及对应的主、备线路侧背板口信息；C12, obtaining the virtual bridge interface ID in the inbound direction and the corresponding primary and backup line side backplane port information from the OTN service configuration;
C13，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C13: Convert the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and invoke a driver interface function to create a multicast;
C14，根据组播ID判断该组播是否已经创建，若是，进入步骤C15；若否，进入步骤C18； C14, judging whether the multicast has been created according to the multicast ID, and if so, proceeding to step C15; if not, proceeding to step C18;
C15，判断OTN业务配置的前后配置是否存在差异；若是，进入步骤S16，若否，进入步骤S17；C15, determining whether there is a difference in the configuration of the OTN service configuration before; if yes, proceeding to step S16, if not, proceeding to step S17;
C16，更新组播成员信息为该虚拟桥接口及其对应的主、备线路侧背板口，结束；C16, updating the multicast member information to the virtual bridge interface and its corresponding primary and backup line side backplane ports, and ending;
C17，保持当前组播成员信息，结束；C17, maintaining the current multicast member information, and ending;
C18，新建组播，并将虚拟桥接口及对应的主、备线路侧背板口加入到组播；OTN业务配置完成，结束。C18, create a new multicast, and add the virtual bridge interface and the corresponding primary and backup line side backplane ports to multicast; the OTN service configuration is complete and ends.
在上述技术方案的基础上，所述配置下发方法包括下话方向的配置下发，所述下话方向的配置下发的具体过程包括：On the basis of the foregoing technical solution, the configuration and delivery method includes the configuration of the outgoing call direction, and the specific process of sending the outgoing call direction includes:
D1，所述交换盘接收配置，根据配置类型分别处理，若为MPLS业务配置则进入步骤D2，若为以太网业务配置则进入步骤D3，若为OTN业务配置则进入步骤D6；D1, the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step D2, if the Ethernet service configuration proceeds to step D3, if the OTN service configuration proceeds to step D6;
D2，按照正常MPLS业务配置处理流程下发；D2, delivered according to the normal MPLS service configuration process;
D3，从AC逻辑接口接收的配置中获取入口方向的虚拟桥接口ID；D3, obtaining a virtual bridge interface ID of an entry direction from a configuration received by the AC logical interface;
D4，按照预设的映射规则将虚拟桥接口ID转换成VLANDOMAIN ID；D4, converting the virtual bridge interface ID into a VLANDOMAIN ID according to a preset mapping rule;
D5，配置AC逻辑接口的入端口配置规则为VLANDOMAIN且设置其ID，调用驱动接口函数完成以太网业务配置，结束；D5. Configure the ingress port configuration rule of the AC logical interface as VLANDOMAIN and set its ID. Call the driver interface function to complete the Ethernet service configuration and end.
D6，从OTN业务配置中获取出口方向的虚拟桥接口ID及对应的主、备线路侧背板口信息；D6, obtaining the virtual bridge interface ID in the egress direction and the corresponding main and backup line side backplane port information from the OTN service configuration;
D7，按照预设的映射规则将虚拟桥接口ID转换成VLANDOMAIN ID，调用驱动接口函数更新虚拟桥接口对应的主、备线路侧背板口的VLANDOMAIN域；OTN业务配置完成，结束。D7, the virtual bridge interface ID is converted into a VLANDOMAIN ID according to a preset mapping rule, and the driver interface function is called to update the VLANDOMAIN domain of the primary and backup line side backplane ports corresponding to the virtual bridge interface; the OTN service configuration is completed and ends.
本发明还公开了一种采用POTN业务转发系统的保护方法，所述 保护方法包括上话方向的保护处理，所述上话方向的保护处理的具体过程包括：The invention also discloses a protection method using a POTN service forwarding system, The protection method includes a protection process in the upper direction, and the specific process of the protection process in the upper direction includes:
E1，检测是否存在通道故障，根据故障类型分别处理；若为LSP通道故障，进入步骤E2；若为ODUK通道故障，结束；E1, detecting whether there is a channel fault, and processing according to the fault type; if the LSP channel is faulty, the process proceeds to step E2; if the ODUK channel is faulty, the process ends;
E2，执行LSP主备倒换逻辑，并调用驱动接口函数执行主备倒换；E2, performing LSP master/slave switching logic, and calling the driver interface function to perform active/standby switching;
E3，切换业务转发路径，倒换完成，结束。E3, switching the service forwarding path, completing the switching, and ending.
在上述技术方案的基础上，所述保护方法包括下话方向的保护处理，所述下话方向的保护处理的具体过程包括：On the basis of the foregoing technical solutions, the protection method includes a protection process in a down-line direction, and the specific process of the protection process in the down-line direction includes:
F1，检测是否存在通道故障，根据故障类型分别处理；若为ODUK通道故障，进入步骤E2；若为LSP通道故障，结束；F1, detecting whether there is a channel fault, and processing according to the fault type; if the ODUK channel is faulty, the process proceeds to step E2; if the LSP channel is faulty, the process ends;
F2，执行ODUK主备倒换逻辑，并调用驱动接口函数执行主备倒换；F2, execute ODUK active/standby switching logic, and call the driver interface function to perform active/standby switching;
F3，判断倒换方向，若倒换到主用则进入步骤F4，否则进入步骤F5；F3, determine the direction of the switch, if the switch to the main use, then proceeds to step F4, otherwise proceeds to step F5;
F4，将虚拟桥接口对应的主用线路侧背板口的VLANDOMAIN更新为该虚拟桥接口的VLANDOMAIN值，备用线路侧背板口的VLANDOMAIN更新为无效值，结束；F4, updating the VLANDOMAIN of the active line side backplane port corresponding to the virtual bridge interface to the VLANDOMAIN value of the virtual bridge interface, and updating the VLANDOMAIN of the backup line side backplane port to an invalid value, ending;
F5，将虚拟桥接口对应的主用线路侧背板口的VLANDOMAIN更新为无效值，备用线路侧背板口的VLANDOMAIN更新为该虚拟桥接口的VLANDOMAIN值，结束。F5, the VLANDOMAIN of the main line side backplane port corresponding to the virtual bridge interface is updated to an invalid value, and the VLANDOMAIN of the spare line side backplane port is updated to the VLANDOMAIN value of the virtual bridge interface, and ends.
与现有技术相比，本发明的优点在于：The advantages of the present invention over the prior art are:
(1)本发明上话方向将POVE实例化为组播来实现桥接，分组业务将该组播作为上话方向业务通道的出口，OTN业务将该组播作为与ODUK通道交互的源端口；下话方向将POVE实例化为 VLANDOMAIN以实现桥接，OTN业务将与ODUK通道连接的线路侧背板口映射到该VLANDOMAIN，分组业务将该VLANDOMIAN作为普通的物理端口以完成接入分组业务的分类处理。(1) In the upper direction of the present invention, the POVE is instantiated into a multicast to implement bridging, and the packet service uses the multicast as an egress of the service channel in the outgoing direction, and the OTN service uses the multicast as a source port for interacting with the ODUK channel; The word direction instantiates POVE as VLANDOMAIN is used for bridging. The OTN service maps the line-side backplane port connected to the ODUK channel to the VLANDOMAIN. The packet service uses the VLANDOMIAN as a common physical port to complete the classification processing of the access packet service.
(2)本发明对于分组业务，增加一种新的端口配置类型——虚拟桥接口，其他配置不变；对于OTN业务，增加与主备ODUK对应的虚拟桥接口，完成OTN业务交叉及ODUK主备保护功能。分组业务与OTN业务交叉组之间通过相同的虚拟桥接口关联。当需要更新OTN业务配置时，仅需通过增量下发OTN业务配置修改虚拟桥接口对应的线路侧背板口，由于虚拟桥接口ID不变，分组业务配置无需随着更新；当需要更新分组业务配置时，由于OTN业务配置无需接收分组业务配置的内容，因此也无需修改。通过此业务配置管理方法实现了分组业务与OTN业务的配置解耦，很好的解决了业务配置增量下发带来的时序问题。(2) The present invention adds a new port configuration type to the packet service, the virtual bridge interface, and the other configurations are unchanged. For the OTN service, the virtual bridge interface corresponding to the active and standby ODUK is added to complete the OTN service crossover and the ODUK main. Backup protection. The packet service is associated with the OTN service cross group through the same virtual bridge interface. When the OTN service configuration needs to be updated, the line-side backplane interface corresponding to the virtual bridge interface needs to be modified by the OTN service configuration. The virtual service interface ID does not need to be updated. In the service configuration, since the OTN service configuration does not need to receive the content of the packet service configuration, there is no need to modify it. The configuration and de-coupling of the packet service and the OTN service are implemented by the service configuration management method, which solves the timing problem caused by the incremental delivery of the service configuration.
(3)本发明业务转发流程是单次处理完成，无传统的环回处理，因而高了系统运行效率及稳定性。同时对于POVE实例化的组播通过入口组播完成，不影响QOS功能实现。(3) The service forwarding process of the present invention is completed in a single process, and has no traditional loopback processing, thereby high system operation efficiency and stability. At the same time, the multicast that is instantiated for POVE is completed through the ingress multicast, and does not affect the implementation of the QOS function.
附图说明DRAWINGS
图1为本发明实施例中POTN业务转发系统的结构示意图；1 is a schematic structural diagram of a POTN service forwarding system according to an embodiment of the present invention;
图2为本发明实施例中POTN业务转发系统的交换盘的结构示意图；2 is a schematic structural diagram of a switch disk of a POTN service forwarding system according to an embodiment of the present invention;
图3为本发明实施例中上话方向的业务转发方法的流程示意图；3 is a schematic flowchart of a service forwarding method in an uplink direction according to an embodiment of the present invention;
图4为本发明实施例中下话方向的业务转发方法的流程示意图；4 is a schematic flowchart of a service forwarding method in a down-call direction according to an embodiment of the present invention;
图5为本发明实施例中上话方向的配置下发方法的流程示意图；FIG. 5 is a schematic flowchart of a method for sending a sending direction in an uplink direction according to an embodiment of the present disclosure;
图6为本发明实施例中下话方向的配置下发方法的流程示意图；FIG. 6 is a schematic flowchart diagram of a method for sending a drop-down direction in an embodiment of the present invention;
图7为本发明实施例中上话方向的保护方法的流程示意图； FIG. 7 is a schematic flowchart of a method for protecting an upper call direction according to an embodiment of the present invention;
图8为本发明实施例中下话方向的保护方法的流程示意图。FIG. 8 is a schematic flowchart diagram of a method for protecting a call direction in an embodiment of the present invention.
具体实施方式detailed description
以下结合附图及实施例对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
参见图1所示，本发明实施例提供一种POTN业务转发系统，包括以太网支路盘，交换盘和OTN线路盘；As shown in FIG. 1 , an embodiment of the present invention provides a POTN service forwarding system, including an Ethernet tributary disk, an exchange disk, and an OTN circuit disk.
以太网支路盘，所述以太网支路盘用于在上话方向将从以太网接收的分组业务传递至交换盘，在下话方向将从交换盘接收的数据包传递至以太网；An Ethernet tributary disk for transmitting packet traffic received from the Ethernet to the switch disk in the uplink direction, and transmitting the data packet received from the switch disk to the Ethernet network in the lower direction;
交换盘，所述交换盘用于实现以太网支路盘和OTN线路盘之间的数据交互；所述交换盘包括至少两个连接所述以太网支路盘的支路侧背板口和至少四个连接所述OTN线路盘的线路侧背板口；其中一条所述支路侧背板口连接一条MPLS业务转发通道，另一条所述支路侧背板口连接一条以太网业务转发通道；所述MPLS业务转发通道还连接两个虚拟桥接口，每个所述虚拟桥接口连接两个所述线路侧背板口；所述以太网业务转发通道连接两个所述虚拟桥接口之一；An exchange disk for implementing data interaction between an Ethernet tributary disk and an OTN line disk; the switch disk includes at least two branch side backplane ports connecting the Ethernet tributary disks and at least Four line-side backplane ports connected to the OTN line disks; one of the branch-side backplane ports is connected to one MPLS service forwarding channel, and the other of the branch-side backplane ports is connected to an Ethernet service forwarding channel; The MPLS service forwarding channel is further connected to two virtual bridge interfaces, each of the virtual bridge interfaces connecting two of the line side backplane ports; and the Ethernet service forwarding channel is connected to one of the two virtual bridge interfaces;
多个OTN线路盘，多个所述OTN线路盘用于在上话方向将分组业务映射至ODUK通道，在下话方向从ODUK通道解映射分组业务。A plurality of OTN line disks, the plurality of OTN line disks are used to map packet services to the ODUK channel in the uplink direction, and to demap the packet services from the ODUK channel in the lower direction.
参见图2所示，所述MPLS业务转发通道包括依次连接的第一AC逻辑接口、第一虚拟转发实例、PW逻辑接口和与所述PW逻辑接口连接的一对主、备LSP接口，所述主、备LSP接口各连接一个所述虚拟桥接口；As shown in FIG. 2, the MPLS service forwarding channel includes a first AC logical interface, a first virtual forwarding instance, a PW logical interface, and a pair of primary and backup LSP interfaces connected to the PW logical interface. The primary and backup LSP interfaces are each connected to one of the virtual bridge interfaces;
所述以太网业务转发通道包括依次连接的第二AC逻辑接口、第二虚拟转发实例和第三AC逻辑接口，所述第三AC逻辑接口连接两个所述虚拟桥接口之一。The Ethernet service forwarding channel includes a second AC logical interface, a second virtual forwarding instance, and a third AC logical interface that are sequentially connected, and the third AC logical interface connects one of the two virtual bridge interfaces.
参见图3所示，本发明实施例还公开了一种POTN业务转发系统 的业务转发方法：所述业务转发方法包括上话方向的业务转发，所述上话方向的业务转发的具体过程包括：Referring to FIG. 3, an embodiment of the present invention further discloses a POTN service forwarding system. The service forwarding method includes: the service forwarding method includes the service forwarding in the uplink direction, and the specific process of the service forwarding in the uplink direction includes:
A1，通过支路侧背板口接收分组业务，根据分组业务所通过的支路侧背板口以及分组业务的特征值得到分组业务匹配的AC逻辑接口；A1, receiving a packet service through the branch side backplane port, and obtaining an AC logical interface matched by the packet service according to the branch side backplane port of the packet service and the characteristic value of the packet service;
A2，通过步骤A1得到的AC逻辑接口得到其绑定的虚拟转发实例；A2, obtaining the virtual forwarding instance bound by the AC logical interface obtained in step A1;
A3，根据步骤A2中得到的虚拟转发实例以及分组业务的特征值得到出口方向的逻辑接口；若为以太网业务，进入步骤A4，若为MPLS业务，进入步骤A8；A3, according to the virtual forwarding instance obtained in step A2 and the characteristic value of the packet service to obtain the logical interface in the export direction; if it is an Ethernet service, proceeds to step A4, if it is an MPLS service, proceeds to step A8;
A4，所述出口方向的逻辑接口为与步骤A2中得到的虚拟转发实例连接的AC逻辑接口；A4, the logical interface in the egress direction is an AC logical interface connected to the virtual forwarding instance obtained in step A2;
A5，查看步骤A4得到的AC逻辑接口对应的物理表项信息，确定出口方向的虚拟桥接口以及AC逻辑接口的封装信息；A5: View the physical entry information corresponding to the AC logical interface obtained in step A4, and determine the virtual bridge interface in the egress direction and the encapsulation information of the AC logical interface.
A6，查看步骤A5得到的虚拟桥接口对应的主播表项信息，确定出口方向的线路侧背板口；A6: Check the information of the anchor entry corresponding to the virtual bridge interface obtained in step A5, and determine the line side backplane port in the exit direction.
A7，通过步骤A6得到的线路侧背板口将分组业务转发至ODUK通道，结束；A7, forwarding the packet service to the ODUK channel through the line side backplane port obtained in step A6, and ending;
A8，所述出口方向的逻辑接口为与步骤A2中得到的虚拟转发实例连接的PW逻辑接口；A8, the logical interface in the egress direction is a PW logical interface connected to the virtual forwarding instance obtained in step A2;
A9，查看步骤A8得到的PW逻辑接口对应的物理表项信息，确定其绑定的LSP接口以及PW的封装信息；A9: Check the physical entry information corresponding to the PW logical interface obtained in step A8, and determine the LSP interface bound to the PW and the encapsulation information of the PW.
A10，查看步骤A9得到的LSP接口对应的物理表项信息，确定出口方向的线路侧背板口以及LSP的封装信息；A10: Check the physical entry information corresponding to the LSP interface obtained in step A9, and determine the line side backplane interface in the egress direction and the encapsulation information of the LSP.
A11，通过步骤A10得到的线路侧背板口将分组业务转发至 ODUK通道，结束。A11. Forward the packet service to the line side backplane port obtained in step A10. ODUK channel, the end.
参见图4所示，所述业务转发方法包括下话方向的业务转发，所述下话方向的业务转发的具体过程包括：As shown in FIG. 4, the service forwarding method includes service forwarding in the down-to-talk direction, and the specific process of forwarding the service in the down-to-talk direction includes:
B1，通过所述虚拟桥接口接收数据包，根据所述虚拟桥接口对应的线路侧背板口配置的VLANDOMAIN以及数据包的特征值得到与该虚拟桥接口匹配的逻辑接口；若为以太网业务，进入步骤B2，若为MPLS业务，进入步骤B8；B1, the data packet is received by the virtual bridge interface, and the logical interface matching the virtual bridge interface is obtained according to the VLANDOMAIN configured by the line side backplane port corresponding to the virtual bridge interface and the characteristic value of the data packet; if it is an Ethernet service Go to step B2, if it is MPLS service, go to step B8;
B2，与该虚拟桥接口匹配的逻辑接口为与步骤B1中所述虚拟桥接口连接的AC逻辑接口；B2. The logical interface that matches the virtual bridge interface is an AC logical interface that is connected to the virtual bridge interface in step B1.
B3，通过步骤B2中得到的AC逻辑接口确定其绑定的虚拟转发实例；B3, determining the virtual forwarding instance bound by the AC logical interface obtained in step B2;
B4，通过步骤B3中得到的虚拟转发实例以及数据包的特征值得出出口方向的AC逻辑接口和支路侧背板口；B4, the virtual forwarding instance obtained in step B3 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
B5，通过步骤B4得到的AC逻辑接口和支路侧背板口将OTN业务转发至以太网支路盘，结束；B5, the OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B4, and ends;
B6，与该虚拟桥接口匹配的逻辑接口为与步骤B1中所述虚拟桥接口连接的LSP接口；B6. The logical interface that matches the virtual bridge interface is an LSP interface that is connected to the virtual bridge interface in step B1.
B7，通过步骤B6中得到的LSP接口，逐层解析其LSP和PW标签得到其绑定的虚拟转发实例；B7, through the LSP interface obtained in step B6, parsing the LSP and the PW label layer by layer to obtain the virtual forwarding instance bound thereto;
B8，通过步骤B7中得到的虚拟转发实例以及数据包的特征值得出出口方向的AC逻辑接口和支路侧背板口；B8, the virtual forwarding instance obtained in step B7 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
B9，通过步骤B8得到的AC逻辑接口和支路侧背板口将OTN业务转发至以太网支路盘，结束。B9: The OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B8, and ends.
参见图5所示，本发明实施例还公开了一种采用POTN业务转发系统的配置下发方法：所述配置下发方法包括上话方向的配置下发， 所述上话方向的配置下发的具体过程包括：As shown in FIG. 5, the embodiment of the present invention further discloses a configuration and delivery method of using a POTN service forwarding system. The specific process of sending the outgoing direction configuration includes:
C1，所述交换盘接收配置，根据配置类型分别处理，若为MPLS业务配置则进入步骤C2，若为以太网业务配置则进入步骤C7，若为OTN业务配置则进入步骤C12；C1, the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step C2, if the Ethernet service configuration proceeds to step C7, if the OTN service configuration proceeds to step C12;
C2，从LSP接口接收的配置中获取出口方向的虚拟桥接口ID；C2. Obtain a virtual bridge interface ID in an exit direction from a configuration received by the LSP interface.
C3，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C3, converting the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and calling a driver interface function to create a multicast;
C4，根据组播ID判断该组播是否已经创建，若是，直接进入步骤C6；若否，进入步骤C5；C4, according to the multicast ID to determine whether the multicast has been created, and if so, proceed directly to step C6; if not, proceed to step C5;
C5，创建组播，此时其成员为空；C5, create a multicast, at this time its members are empty;
C6，将LSP接口的目的端口类型配置为组播，并调用对应的驱动接口函数配置，MPLS业务配置完成，结束；C6: Configure the destination port type of the LSP interface as multicast, and invoke the corresponding driver interface function configuration. The MPLS service configuration is complete and ends.
C7，从AC逻辑接口接收的配置中获取出口方向的虚拟桥接口ID；C7, obtaining a virtual bridge interface ID in an exit direction from a configuration received by the AC logical interface;
C8，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C8, converting the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and calling a driver interface function to create a multicast;
C9，根据组播ID判断该组播是否已经创建，若是，直接进入步骤C11；若否，进入步骤C10；C9, according to the multicast ID to determine whether the multicast has been created, and if so, go directly to step C11; if not, proceed to step C10;
C10，创建组播，此时其成员为空；C10, create a multicast, at this time its members are empty;
C11，将AC逻辑接口的目的端口类型配置为组播，并调用对应的驱动接口函数配置，MPLS业务配置完成，结束；In C11, the destination port type of the AC logical interface is configured as multicast, and the corresponding driver interface function is called, and the MPLS service configuration is completed.
C12，从OTN业务配置中获取入口方向的虚拟桥接口ID及对应的主、备线路侧背板口信息；C12, obtaining the virtual bridge interface ID in the inbound direction and the corresponding primary and backup line side backplane port information from the OTN service configuration;
C13，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C13: Convert the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and invoke a driver interface function to create a multicast;
C14，根据组播ID判断该组播是否已经创建，若是，进入步骤 C15；若否，进入步骤C18；C14, judging whether the multicast has been created according to the multicast ID, and if so, entering the step C15; if not, proceed to step C18;
C15，判断OTN业务配置的前后配置是否存在差异；若是，进入步骤S16，若否，进入步骤S17；C15, determining whether there is a difference in the configuration of the OTN service configuration before; if yes, proceeding to step S16, if not, proceeding to step S17;
C16，更新组播成员信息为该虚拟桥接口及其对应的主、备线路侧背板口，结束；C16, updating the multicast member information to the virtual bridge interface and its corresponding primary and backup line side backplane ports, and ending;
C17，保持当前组播成员信息，结束；C17, maintaining the current multicast member information, and ending;
C18，新建组播，并将虚拟桥接口及对应的主、备线路侧背板口加入到组播；OTN业务配置完成，结束。C18, create a new multicast, and add the virtual bridge interface and the corresponding primary and backup line side backplane ports to multicast; the OTN service configuration is complete and ends.
参见图6所示，所述配置下发方法包括下话方向的配置下发，所述下话方向的配置下发的具体过程包括：As shown in FIG. 6 , the configuration delivery method includes the configuration of the outgoing call direction, and the specific process of sending the outgoing call direction includes:
D1，所述交换盘接收配置，根据配置类型分别处理，若为MPLS业务配置则进入步骤D2，若为以太网业务配置则进入步骤D3，若为OTN业务配置则进入步骤D6；D1, the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step D2, if the Ethernet service configuration proceeds to step D3, if the OTN service configuration proceeds to step D6;
D2，按照正常MPLS业务配置处理流程下发；D2, delivered according to the normal MPLS service configuration process;
D3，从AC逻辑接口接收的配置中获取入口方向的虚拟桥接口ID；D3, obtaining a virtual bridge interface ID of an entry direction from a configuration received by the AC logical interface;
D4，按照预设的映射规则将虚拟桥接口ID转换成VLANDOMAIN ID；D4, converting the virtual bridge interface ID into a VLANDOMAIN ID according to a preset mapping rule;
D5，配置AC逻辑接口的入端口配置规则为VLANDOMAIN且设置其ID，调用驱动接口函数完成以太网业务配置，结束；D5. Configure the ingress port configuration rule of the AC logical interface as VLANDOMAIN and set its ID. Call the driver interface function to complete the Ethernet service configuration and end.
D6，从OTN业务配置中获取出口方向的虚拟桥接口ID及对应的主、备线路侧背板口信息；D6, obtaining the virtual bridge interface ID in the egress direction and the corresponding main and backup line side backplane port information from the OTN service configuration;
D7，按照预设的映射规则将虚拟桥接口ID转换成VLANDOMAIN ID，调用驱动接口函数更新虚拟桥接口对应的主、备线路侧背板口的VLANDOMAIN域；OTN业务配置完成，结束。 D7, the virtual bridge interface ID is converted into a VLANDOMAIN ID according to a preset mapping rule, and the driver interface function is called to update the VLANDOMAIN domain of the primary and backup line side backplane ports corresponding to the virtual bridge interface; the OTN service configuration is completed and ends.
参见图7所示，本发明实施例还公开了一种采用POTN业务转发系统的保护方法，所述保护方法包括上话方向的保护处理，所述上话方向的保护处理的具体过程包括：As shown in FIG. 7, the embodiment of the present invention further discloses a protection method using a POTN service forwarding system, where the protection method includes a protection process in an uplink direction, and the specific process of the protection process in the uplink direction includes:
E1，检测是否存在通道故障，根据故障类型分别处理；若为LSP通道故障，进入步骤E2；若为ODUK通道故障，结束；E1, detecting whether there is a channel fault, and processing according to the fault type; if the LSP channel is faulty, the process proceeds to step E2; if the ODUK channel is faulty, the process ends;
E2，执行LSP主备倒换逻辑，并调用驱动接口函数执行主备倒换；E2, performing LSP master/slave switching logic, and calling the driver interface function to perform active/standby switching;
E3，写FRR表，触发芯片切换业务转发路径，倒换完成，结束。E3, write the FRR table, trigger the chip to switch the service forwarding path, complete the switching, and end.
参见图8所示，所述保护方法包括下话方向的保护处理，所述下话方向的保护处理的具体过程包括：Referring to FIG. 8 , the protection method includes a protection process in a down direction, and the specific process of the protection process in the down direction includes:
F1，检测是否存在通道故障，根据故障类型分别处理；若为ODUK通道故障，进入步骤E2；若为LSP通道故障，结束；F1, detecting whether there is a channel fault, and processing according to the fault type; if the ODUK channel is faulty, the process proceeds to step E2; if the LSP channel is faulty, the process ends;
F2，执行ODUK主备倒换逻辑，并调用驱动接口函数执行主备倒换；F2, execute ODUK active/standby switching logic, and call the driver interface function to perform active/standby switching;
F3，判断倒换方向，若倒换到主用则进入步骤F4，否则进入步骤F5；F3, determine the direction of the switch, if the switch to the main use, then proceeds to step F4, otherwise proceeds to step F5;
F4，将虚拟桥接口对应的主用线路侧背板口的VLANDOMAIN更新为该虚拟桥接口的VLANDOMAIN值，备用线路侧背板口的VLANDOMAIN更新为无效值，结束；F4, updating the VLANDOMAIN of the active line side backplane port corresponding to the virtual bridge interface to the VLANDOMAIN value of the virtual bridge interface, and updating the VLANDOMAIN of the backup line side backplane port to an invalid value, ending;
F5，将虚拟桥接口对应的主用线路侧背板口的VLANDOMAIN更新为无效值，备用线路侧背板口的VLANDOMAIN更新为该虚拟桥接口的VLANDOMAIN值，结束。F5, the VLANDOMAIN of the main line side backplane port corresponding to the virtual bridge interface is updated to an invalid value, and the VLANDOMAIN of the spare line side backplane port is updated to the VLANDOMAIN value of the virtual bridge interface, and ends.
本发明不局限于上述实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围之内。本说明书中未作详细 描述的内容属于本领域专业技术人员公知的现有技术。 The present invention is not limited to the above embodiments, and those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. These improvements and retouchings are also considered as protection of the present invention. Within the scope. Not detailed in this manual The description is of the prior art known to those skilled in the art.

Claims (8)

  1. 一种POTN业务转发系统，其特征在于：包括以太网支路盘，交换盘和OTN线路盘；A POTN service forwarding system, comprising: an Ethernet tributary disk, an exchange disk and an OTN circuit disk;
    以太网支路盘，所述以太网支路盘用于在上话方向将从以太网接收的分组业务传递至交换盘，在下话方向将从交换盘接收的数据包传递至以太网；An Ethernet tributary disk for transmitting packet traffic received from the Ethernet to the switch disk in the uplink direction, and transmitting the data packet received from the switch disk to the Ethernet network in the lower direction;
    交换盘，所述交换盘用于实现以太网支路盘和OTN线路盘之间的数据交互；所述交换盘包括至少两个连接所述以太网支路盘的支路侧背板口和至少四个连接所述OTN线路盘的线路侧背板口；其中一条所述支路侧背板口连接一条MPLS业务转发通道，另一条所述支路侧背板口连接一条以太网业务转发通道；所述MPLS业务转发通道还连接两个虚拟桥接口，每个所述虚拟桥接口连接两个所述线路侧背板口；所述以太网业务转发通道连接两个所述虚拟桥接口之一；An exchange disk for implementing data interaction between an Ethernet tributary disk and an OTN line disk; the switch disk includes at least two branch side backplane ports connecting the Ethernet tributary disks and at least Four line-side backplane ports connected to the OTN line disks; one of the branch-side backplane ports is connected to one MPLS service forwarding channel, and the other of the branch-side backplane ports is connected to an Ethernet service forwarding channel; The MPLS service forwarding channel is further connected to two virtual bridge interfaces, each of the virtual bridge interfaces connecting two of the line side backplane ports; and the Ethernet service forwarding channel is connected to one of the two virtual bridge interfaces;
    多个OTN线路盘，多个所述OTN线路盘用于在上话方向将分组业务映射至ODUK通道，在下话方向从ODUK通道解映射分组业务。A plurality of OTN line disks, the plurality of OTN line disks are used to map packet services to the ODUK channel in the uplink direction, and to demap the packet services from the ODUK channel in the lower direction.
  2. 如权利要求1所述的一种POTN业务转发系统，其特征在于：所述MPLS业务转发通道包括依次连接的第一AC逻辑接口、第一虚拟转发实例、PW逻辑接口和与所述PW逻辑接口连接的一对主、备LSP接口，所述主、备LSP接口各连接一个所述虚拟桥接口；The POTN service forwarding system according to claim 1, wherein the MPLS service forwarding channel comprises a first AC logical interface, a first virtual forwarding instance, a PW logical interface, and a logical interface with the PW. A pair of primary and secondary LSP interfaces connected to each other, and the primary and backup LSP interfaces are each connected to one virtual bridge interface;
    所述以太网业务转发通道包括依次连接的第二AC逻辑接口、第二虚拟转发实例和第三AC逻辑接口，所述第三AC逻辑接口连接两个所述虚拟桥接口之一。The Ethernet service forwarding channel includes a second AC logical interface, a second virtual forwarding instance, and a third AC logical interface that are sequentially connected, and the third AC logical interface connects one of the two virtual bridge interfaces.
  3. 一种采用如权利要求1所述的一种POTN业务转发系统的业务转发方法，其特征在于：所述业务转发方法包括上话方向的业务转发，所述上话方向的业务转发的具体过程包括： A service forwarding method of a POTN service forwarding system according to claim 1, wherein the service forwarding method includes service forwarding in an outgoing direction, and the specific process of forwarding the service in the outgoing direction includes :
    A1，通过支路侧背板口接收分组业务，根据分组业务所通过的支路侧背板口以及分组业务的特征值得到分组业务匹配的AC逻辑接口；A1, receiving a packet service through the branch side backplane port, and obtaining an AC logical interface matched by the packet service according to the branch side backplane port of the packet service and the characteristic value of the packet service;
    A2，通过步骤A1得到的AC逻辑接口得到其绑定的虚拟转发实例；A2, obtaining the virtual forwarding instance bound by the AC logical interface obtained in step A1;
    A3，根据步骤A2中得到的虚拟转发实例以及分组业务的特征值得到出口方向的逻辑接口；若为以太网业务，进入步骤A4，若为MPLS业务，进入步骤A8；A3, according to the virtual forwarding instance obtained in step A2 and the characteristic value of the packet service to obtain the logical interface in the export direction; if it is an Ethernet service, proceeds to step A4, if it is an MPLS service, proceeds to step A8;
    A4，所述出口方向的逻辑接口为与步骤A2中得到的虚拟转发实例连接的AC逻辑接口；A4, the logical interface in the egress direction is an AC logical interface connected to the virtual forwarding instance obtained in step A2;
    A5，查看步骤A4得到的AC逻辑接口对应的物理表项信息，确定出口方向的虚拟桥接口以及AC逻辑接口的封装信息；A5: View the physical entry information corresponding to the AC logical interface obtained in step A4, and determine the virtual bridge interface in the egress direction and the encapsulation information of the AC logical interface.
    A6，查看步骤A5得到的虚拟桥接口对应的主播表项信息，确定出口方向的线路侧背板口；A6: Check the information of the anchor entry corresponding to the virtual bridge interface obtained in step A5, and determine the line side backplane port in the exit direction.
    A7，通过步骤A6得到的线路侧背板口将分组业务转发至ODUK通道，结束；A7, forwarding the packet service to the ODUK channel through the line side backplane port obtained in step A6, and ending;
    A8，所述出口方向的逻辑接口为与步骤A2中得到的虚拟转发实例连接的PW逻辑接口；A8, the logical interface in the egress direction is a PW logical interface connected to the virtual forwarding instance obtained in step A2;
    A9，查看步骤A8得到的PW逻辑接口对应的物理表项信息，确定其绑定的LSP接口以及PW的封装信息；A9: Check the physical entry information corresponding to the PW logical interface obtained in step A8, and determine the LSP interface bound to the PW and the encapsulation information of the PW.
    A10，查看步骤A9得到的LSP接口对应的物理表项信息，确定出口方向的线路侧背板口以及LSP的封装信息；A10: Check the physical entry information corresponding to the LSP interface obtained in step A9, and determine the line side backplane interface in the egress direction and the encapsulation information of the LSP.
    A11，通过步骤A10得到的线路侧背板口将分组业务转发至ODUK通道，结束。A11, the packet side service is forwarded to the ODUK channel through the line side backplane port obtained in step A10, and ends.
  4. 如权利要求3所述的一种业务转发方法，其特征在于：所述 业务转发方法包括下话方向的业务转发，所述下话方向的业务转发的具体过程包括：A service forwarding method according to claim 3, wherein: The service forwarding method includes the service forwarding in the down-to-talk direction, and the specific process of the service forwarding in the down-to-talk direction includes:
    B1，通过所述虚拟桥接口接收数据包，根据所述虚拟桥接口对应的线路侧背板口配置的VLANDOMAIN以及数据包的特征值得到与该虚拟桥接口匹配的逻辑接口；若为以太网业务，进入步骤B2，若为MPLS业务，进入步骤B8；B1, the data packet is received by the virtual bridge interface, and the logical interface matching the virtual bridge interface is obtained according to the VLANDOMAIN configured by the line side backplane port corresponding to the virtual bridge interface and the characteristic value of the data packet; if it is an Ethernet service Go to step B2, if it is MPLS service, go to step B8;
    B2，与该虚拟桥接口匹配的逻辑接口为与步骤B1中所述虚拟桥接口连接的AC逻辑接口；B2. The logical interface that matches the virtual bridge interface is an AC logical interface that is connected to the virtual bridge interface in step B1.
    B3，通过步骤B2中得到的AC逻辑接口确定其绑定的虚拟转发实例；B3, determining the virtual forwarding instance bound by the AC logical interface obtained in step B2;
    B4，通过步骤B3中得到的虚拟转发实例以及数据包的特征值得出出口方向的AC逻辑接口和支路侧背板口；B4, the virtual forwarding instance obtained in step B3 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
    B5，通过步骤B4得到的AC逻辑接口和支路侧背板口将OTN业务转发至以太网支路盘，结束；B5, the OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B4, and ends;
    B6，与该虚拟桥接口匹配的逻辑接口为与步骤B1中所述虚拟桥接口连接的LSP接口；B6. The logical interface that matches the virtual bridge interface is an LSP interface that is connected to the virtual bridge interface in step B1.
    B7，通过步骤B6中得到的LSP接口，逐层解析其LSP和PW标签得到其绑定的虚拟转发实例；B7, through the LSP interface obtained in step B6, parsing the LSP and the PW label layer by layer to obtain the virtual forwarding instance bound thereto;
    B8，通过步骤B7中得到的虚拟转发实例以及数据包的特征值得出出口方向的AC逻辑接口和支路侧背板口；B8, the virtual forwarding instance obtained in step B7 and the characteristics of the data packet are worth the AC logical interface and the branch side backplane port in the exit direction;
    B9，通过步骤B8得到的AC逻辑接口和支路侧背板口将OTN业务转发至以太网支路盘，结束。B9: The OTN service is forwarded to the Ethernet tributary disk through the AC logical interface and the tributary side backplane port obtained in step B8, and ends.
  5. 一种采用如权利要求1所述的一种POTN业务转发系统的配置下发方法，其特征在于：所述配置下发方法包括上话方向的配置下发，所述上话方向的配置下发的具体过程包括： A configuration and delivery method of a POTN service forwarding system according to claim 1, wherein the configuration delivery method includes sending a configuration in an outgoing direction, and the configuration in the outgoing direction is sent. The specific process includes:
    C1，所述交换盘接收配置，根据配置类型分别处理，若为MPLS业务配置则进入步骤C2，若为以太网业务配置则进入步骤C7，若为OTN业务配置则进入步骤C12；C1, the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step C2, if the Ethernet service configuration proceeds to step C7, if the OTN service configuration proceeds to step C12;
    C2，从LSP接口接收的配置中获取出口方向的虚拟桥接口ID；C2. Obtain a virtual bridge interface ID in an exit direction from a configuration received by the LSP interface.
    C3，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C3, converting the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and calling a driver interface function to create a multicast;
    C4，根据组播ID判断该组播是否已经创建，若是，直接进入步骤C6；若否，进入步骤C5；C4, according to the multicast ID to determine whether the multicast has been created, and if so, proceed directly to step C6; if not, proceed to step C5;
    C5，创建组播，此时其成员为空；C5, create a multicast, at this time its members are empty;
    C6，将LSP接口的目的端口类型配置为组播，并调用对应的驱动接口函数配置，MPLS业务配置完成，结束；C6: Configure the destination port type of the LSP interface as multicast, and invoke the corresponding driver interface function configuration. The MPLS service configuration is complete and ends.
    C7，从AC逻辑接口接收的配置中获取出口方向的虚拟桥接口ID；C7, obtaining a virtual bridge interface ID in an exit direction from a configuration received by the AC logical interface;
    C8，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C8, converting the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and calling a driver interface function to create a multicast;
    C9，根据组播ID判断该组播是否已经创建，若是，直接进入步骤C11；若否，进入步骤C10；C9, according to the multicast ID to determine whether the multicast has been created, and if so, go directly to step C11; if not, proceed to step C10;
    C10，创建组播，此时其成员为空；C10, create a multicast, at this time its members are empty;
    C11，将AC逻辑接口的目的端口类型配置为组播，并调用对应的驱动接口函数配置，MPLS业务配置完成，结束；In C11, the destination port type of the AC logical interface is configured as multicast, and the corresponding driver interface function is called, and the MPLS service configuration is completed.
    C12，从OTN业务配置中获取入口方向的虚拟桥接口ID及对应的主、备线路侧背板口信息；C12, obtaining the virtual bridge interface ID in the inbound direction and the corresponding primary and backup line side backplane port information from the OTN service configuration;
    C13，按照预设的映射规则将虚拟桥接口ID转换成组播ID，并调用驱动接口函数，创建组播；C13: Convert the virtual bridge interface ID into a multicast ID according to a preset mapping rule, and invoke a driver interface function to create a multicast;
    C14，根据组播ID判断该组播是否已经创建，若是，进入步骤C15；若否，进入步骤C18； C14, judging whether the multicast has been created according to the multicast ID, and if so, proceeding to step C15; if not, proceeding to step C18;
    C15，判断OTN业务配置的前后配置是否存在差异；若是，进入步骤S16，若否，进入步骤S17；C15, determining whether there is a difference in the configuration of the OTN service configuration before; if yes, proceeding to step S16, if not, proceeding to step S17;
    C16，更新组播成员信息为该虚拟桥接口及其对应的主、备线路侧背板口，结束；C16, updating the multicast member information to the virtual bridge interface and its corresponding primary and backup line side backplane ports, and ending;
    C17，保持当前组播成员信息，结束；C17, maintaining the current multicast member information, and ending;
    C18，新建组播，并将虚拟桥接口及对应的主、备线路侧背板口加入到组播；OTN业务配置完成，结束。C18, create a new multicast, and add the virtual bridge interface and the corresponding primary and backup line side backplane ports to multicast; the OTN service configuration is complete and ends.
  6. 如权利要求5所述的一种配置下发方法，其特征在于：所述配置下发方法包括下话方向的配置下发，所述下话方向的配置下发的具体过程包括：The method for transmitting a configuration according to claim 5, wherein the configuration and delivery method includes the configuration of the outgoing call direction, and the specific process for the configuration of the outgoing call direction includes:
    D1，所述交换盘接收配置，根据配置类型分别处理，若为MPLS业务配置则进入步骤D2，若为以太网业务配置则进入步骤D3，若为OTN业务配置则进入步骤D6；D1, the switching disk receiving configuration, according to the configuration type respectively, if the MPLS service configuration proceeds to step D2, if the Ethernet service configuration proceeds to step D3, if the OTN service configuration proceeds to step D6;
    D2，按照正常MPLS业务配置处理流程下发；D2, delivered according to the normal MPLS service configuration process;
    D3，从AC逻辑接口接收的配置中获取入口方向的虚拟桥接口ID；D3, obtaining a virtual bridge interface ID of an entry direction from a configuration received by the AC logical interface;
    D4，按照预设的映射规则将虚拟桥接口ID转换成VLANDOMAIN ID；D4, converting the virtual bridge interface ID into a VLANDOMAIN ID according to a preset mapping rule;
    D5，配置AC逻辑接口的入端口配置规则为VLANDOMAIN且设置其ID，调用驱动接口函数完成以太网业务配置，结束；D5. Configure the ingress port configuration rule of the AC logical interface as VLANDOMAIN and set its ID. Call the driver interface function to complete the Ethernet service configuration and end.
    D6，从OTN业务配置中获取出口方向的虚拟桥接口ID及对应的主、备线路侧背板口信息；D6, obtaining the virtual bridge interface ID in the egress direction and the corresponding main and backup line side backplane port information from the OTN service configuration;
    D7，按照预设的映射规则将虚拟桥接口ID转换成VLANDOMAIN ID，调用驱动接口函数更新虚拟桥接口对应的主、备线路侧背板口的VLANDOMAIN域；OTN业务配置完成，结束。 D7, the virtual bridge interface ID is converted into a VLANDOMAIN ID according to a preset mapping rule, and the driver interface function is called to update the VLANDOMAIN domain of the primary and backup line side backplane ports corresponding to the virtual bridge interface; the OTN service configuration is completed and ends.
  7. 一种采用如权利要求1所述的一种POTN业务转发系统的保护方法，其特征在于：所述保护方法包括上话方向的保护处理，所述上话方向的保护处理的具体过程包括：A protection method for a POTN service forwarding system according to claim 1, wherein the protection method includes a protection process in an uplink direction, and the specific process of the protection processing in the uplink direction includes:
    E1，检测是否存在通道故障，根据故障类型分别处理；若为LSP通道故障，进入步骤E2；若为ODUK通道故障，结束；E1, detecting whether there is a channel fault, and processing according to the fault type; if the LSP channel is faulty, the process proceeds to step E2; if the ODUK channel is faulty, the process ends;
    E2，执行LSP主备倒换逻辑，并调用驱动接口函数执行主备倒换；E2, performing LSP master/slave switching logic, and calling the driver interface function to perform active/standby switching;
    E3，切换业务转发路径，倒换完成，结束。E3, switching the service forwarding path, completing the switching, and ending.
  8. 如权利要求7所述的一种POTN业务转发系统的保护方法，其特征在于：所述保护方法包括下话方向的保护处理，所述下话方向的保护处理的具体过程包括：The method for protecting a POTN service forwarding system according to claim 7, wherein the protection method comprises a protection process in a down-line direction, and the specific process of the protection process in the down-line direction includes:
    F1，检测是否存在通道故障，根据故障类型分别处理；若为ODUK通道故障，进入步骤E2；若为LSP通道故障，结束；F1, detecting whether there is a channel fault, and processing according to the fault type; if the ODUK channel is faulty, the process proceeds to step E2; if the LSP channel is faulty, the process ends;
    F2，执行ODUK主备倒换逻辑，并调用驱动接口函数执行主备倒换；F2, execute ODUK active/standby switching logic, and call the driver interface function to perform active/standby switching;
    F3，判断倒换方向，若倒换到主用则进入步骤F4，否则进入步骤F5；F3, determine the direction of the switch, if the switch to the main use, then proceeds to step F4, otherwise proceeds to step F5;
    F4，将虚拟桥接口对应的主用线路侧背板口的VLANDOMAIN更新为该虚拟桥接口的VLANDOMAIN值，备用线路侧背板口的VLANDOMAIN更新为无效值，结束；F4, updating the VLANDOMAIN of the active line side backplane port corresponding to the virtual bridge interface to the VLANDOMAIN value of the virtual bridge interface, and updating the VLANDOMAIN of the backup line side backplane port to an invalid value, ending;
    F5，将虚拟桥接口对应的主用线路侧背板口的VLANDOMAIN更新为无效值，备用线路侧背板口的VLANDOMAIN更新为该虚拟桥接口的VLANDOMAIN值，结束。 F5, the VLANDOMAIN of the main line side backplane port corresponding to the virtual bridge interface is updated to an invalid value, and the VLANDOMAIN of the spare line side backplane port is updated to the VLANDOMAIN value of the virtual bridge interface, and ends.
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