WO2015184868A1 - 一种服务层信号失效检测装置及方法 - Google Patents

一种服务层信号失效检测装置及方法 Download PDF

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WO2015184868A1
WO2015184868A1 PCT/CN2015/073264 CN2015073264W WO2015184868A1 WO 2015184868 A1 WO2015184868 A1 WO 2015184868A1 CN 2015073264 W CN2015073264 W CN 2015073264W WO 2015184868 A1 WO2015184868 A1 WO 2015184868A1
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node
service
service layer
signal failure
packet
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PCT/CN2015/073264
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English (en)
French (fr)
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李琴
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中兴通讯股份有限公司
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  • the present invention relates to the field of communication technologies, and in particular to a service layer signal failure detecting apparatus and method.
  • IP network association
  • SDH synchronous digital systems
  • T-MPLS transport multi-protocol label switching
  • PBT carrier backbone transmission
  • MPLF-TP is a three-layer structure.
  • the MPLF-TP model can be divided into pseudowire layer (TMC) 3-tunnel layer (TMP) 2-segment layer (TMS) 1 from the inside to the outside. Different pseudo- Lines can go the same tunnel, and different tunnels can take the same segment path.
  • the TMS-TMP-TMC is a service layer and a client layer.
  • the service layer alarm indication signal (AIS) provides an alarm detection function for the OAM, which is to notify the client layer when the current service layer detects a signal failure (SF) alarm. .
  • SF signal failure
  • the AIS of the related art sends a packet to detect an alarm in a period of 1 s. The process needs to be implemented by software. After that, when the AIS warning triggers the protection switching, there is a problem of over-conversion, and the alarm detection + switching processing cannot be guaranteed within 50 ms. carry out.
  • the embodiment of the invention provides a service layer signal failure detecting device and method, which can quickly detect a service layer signal failure, so that the protection switching when the service layer signal fails can be more stable. Ensure transmission quality, improve network performance, and meet the requirements of operators and users for network transmission quality to a greater extent.
  • an embodiment of the present invention provides a service layer signal failure detecting apparatus, which is applied to a network element, and includes:
  • the packet sending and receiving processing module is configured to: poll the inbound node and the topology path in the service model of the network element, and when the service layer signal of the ingress node has enabled the service layer signal failure alarm function and there is a signal failure alarm, Group loading message;
  • the switch chip is configured to: forward or terminate the inbound packet.
  • the packet sending and receiving processing module includes:
  • the polling submodule is configured to: poll the inbound node and the topology path in the service model of the current network element, determine the service layer node corresponding to the inbound node, and whether the service layer node enables the service layer signal invalidation alarm Function and there is a signal failure alarm;
  • the message assembly sub-module is configured to: when the service layer node has enabled the service layer signal failure alarm function and has a signal failure alarm, obtain the service-related information on the topology path, and load the information according to the service-related information group Message.
  • the service layer related information includes: a network structure layer label, a virtual local area network information, and a hardware address on the topology path; where the network structure layer label is a pseudo line label, a tunnel label, or a ring network protection related label;
  • the message assembly submodule includes:
  • a first acquiring unit configured to: when the service layer node has enabled the service layer signal failure alarm function and has a signal failure alarm, obtain a network structure layer label, a virtual local area network information, and a hardware address on the topology path;
  • the message assembly unit is configured to: use the hardware address of the current network element as the destination hardware address of the packet, and enter the label of the network structure layer as the label of the packet, and the virtual local area network information is used as the virtual local area network information of the packet, and according to The network management standard fills in the type of the message and the protocol data unit, and completes the assembly of the incoming message.
  • the switch chip includes:
  • the determining sub-module is configured to: determine whether the inbound packet needs to be terminated;
  • the forwarding submodule is configured to: when the inbound packet does not need to be terminated, Forwarding packets are forwarded;
  • the processing sub-module is configured to: when the inbound packet needs to be terminated, return the inbound packet to the packet sending and receiving processing module of the current network element by using an access control list.
  • the packet sending and receiving processing module is further configured to receive the forwarded inbound packet and send the packet to the switching chip for processing.
  • the packet sending and receiving processing module is further configured to receive an inbound packet returned by the switch chip, determine whether a network management instance is configured corresponding to the current node, and terminate the inbound direction if a network management instance is configured.
  • the packet is sent with a service layer signal failure alarm. If no network management instance is configured, the inbound packet is discarded.
  • the service layer signal failure detecting apparatus further includes:
  • the service configuration module is configured to: establish a service model of a three-layer structure in which the node type corresponds to the multi-protocol label switching transmission technology; wherein the service model constructs an inter-node topology according to the service relationship; and the VC node of the service model corresponds to a pseudo-line layer
  • the VP node corresponds to the tunnel layer, and the VS node corresponds to the segment layer; the node of the service model stores its own service-related information and associates with the corresponding network OAM instance.
  • the embodiment of the present invention further provides a service layer signal failure detection method, which is applied to a network element, and includes:
  • the group loading report Text including:
  • the service layer node When the service layer node has enabled the service layer signal failure alarm function and has a signal failure alarm, acquiring service related information on the topology path, and loading the information according to the service related information group Message.
  • the service layer related information includes: a network structure layer label, a virtual local area network information, and a hardware address on the topology path; where the network structure layer label is a pseudo line label, a tunnel label, or a ring network protection related label;
  • the service layer node When the service layer node has enabled the service layer signal failure alarm function and the signal failure alarm is generated, the service related information on the topology path is obtained, and the packet is loaded according to the service related information group, including:
  • the hardware address of the current network element is used as the destination hardware address of the packet, and the label of the incoming network structure layer is used as the label of the packet.
  • the virtual local area network information is used as the virtual local area network information of the packet, and the type of the message is filled according to the network management standard.
  • the protocol data unit completes the assembly of the incoming message.
  • forwarding or terminating the inbound packet includes:
  • the inbound packet When the inbound packet does not need to be terminated, the inbound packet is forwarded;
  • the inbound packet When the inbound packet needs to be terminated, the inbound packet is returned to the packet sending and receiving processing module of the current network element by using the access control list.
  • forwarding or terminating the inbound packet further includes:
  • the packet sending and receiving processing module receives the returned inbound packet, and determines whether the current node is configured with an operation management and maintenance (OAM) instance. If the network OAM instance is configured, the inbound packet is terminated and the service layer is generated. If the network management instance is not configured, the inbound packet is discarded.
  • OAM operation management and maintenance
  • the foregoing method further includes:
  • a three-layered service model of a multi-protocol label switching transmission technology corresponding to a node type wherein the service model constructs an inter-node topology according to a service relationship; a VC node of the service model corresponds to a pseudo-line layer, and a VP node corresponds to a tunnel layer, The VS node corresponds to the segment layer; the node of the service model stores its own service-related information and associates with the corresponding network OAM instance.
  • Embodiments of the present invention also provide a computer readable storage medium storing program instructions when The method described above can be implemented when program instructions are executed.
  • the packet sending and receiving processing module polls the inbound node and the topology path in the service model of the current network element, and can obtain whether the service layer node of the inbound node enables the service layer signal invalidation alarm. Function and whether there is information about the signal failure SF alarm. In this way, when the service layer node of the ingress node is enabled to have the service layer signal failure alarm function and the SF alarm is present, the packet can be loaded into the packet and the switch chip will enter the direction. The message is forwarded and processed.
  • the packet transmission and assembly can be triggered immediately, and the service layer signal failure can be quickly detected, so that the protection switching when the service layer signal fails can be performed. More stable, guarantee transmission quality and improve network performance.
  • Figure 1 shows a schematic diagram of a three-layer structure of MPLF-TP
  • FIG. 2 is a schematic structural diagram of a service layer signal failure detecting apparatus according to an embodiment of the present invention.
  • FIG. 3 is a topological diagram showing a service model of a three-layer structure corresponding to MPLF-TP established by a service layer signal failure detecting apparatus according to an embodiment of the present invention
  • FIG. 4 shows an application scenario of an embodiment of the present invention
  • Figure 5 shows the application of the service layer signal failure detecting device in NE2
  • Figure 6 shows the processing flow of scenario one
  • Figure 7 shows the application of the service layer signal failure detecting device in NE1;
  • FIG. 8 shows the processing flow of the scenario 2.
  • the embodiment of the present invention provides a service layer signal failure detecting device for the problem that the service layer signal failure detecting technology triggers the protection switching over-standard, and implements a simple and rapid detection to ensure the performance of the service layer signal failure alarm trigger switching. Greatly guarantee the quality of network transmission.
  • a service layer signal failure detecting apparatus As shown in FIG. 2, a service layer signal failure detecting apparatus according to an embodiment of the present invention is applied to a network. Yuan, including:
  • the packet sending and receiving processing module 10 is configured to: poll the inbound node and the topology path in the service model of the current network element, and enable the service layer signal failure alarm function and the signal failure alarm in the service layer node of the inbound node When the group is loaded into the message;
  • the switch chip 20 is configured to: forward or terminate the inbound message.
  • the ingress node is a function node that is a packet sending node, and may be a pseudowire PW layer node, a tunnel LSP layer node or a segment section layer node, and the service layer node of the pseudowire layer node is a tunnel layer node, and the tunnel layer The service layer of a node is a segment layer node.
  • the packet sending and receiving processing module 10 polls the inbound node and the topology path in the service model of the current network element, and can obtain whether the service layer node of the inbound node enables the service layer signal failure alarm function and whether there is information about the signal invalid SF alarm.
  • the packet can be loaded into the packet, and the inbound packet is the service layer signal invalidation alarm packet, and the switch chip 20 is exchanged. Forward and process incoming packets.
  • the packet transmission and assembly can be triggered immediately, and the service layer signal failure can be quickly detected, so that the protection switching when the service layer signal fails can be performed. More stable, guarantee transmission quality and improve network performance.
  • the service layer signal failure detecting apparatus further includes:
  • the service configuration module 30 is configured to: establish a service model of a three-layer structure in which the node type corresponds to the multi-protocol label switching transmission technology; wherein the service model constructs an inter-node topology according to the service relationship; and the VC node of the service model corresponds to a pseudo-line
  • the VP node corresponds to the tunnel layer, and the VS node corresponds to the segment layer.
  • the node of the service model stores its own service-related information and associates with the corresponding network OAM instance.
  • the service configuration module 30 mainly completes the establishment of the service model, such as the service topology shown in FIG. 3, corresponding to the MPLS-TP, the VC node corresponding to the PW layer, the VP node corresponding to the LSP layer, and the VS node corresponding to the Section layer, and the illustrated example also includes the VS.
  • the VP node corresponds to the ring network protection virtual layer. If no ring network protection is configured, there is no VS-VP node.
  • Each node has a working path and a protection path, which respectively represent the protection relationship of each level, polling the inbound node and the topology path, and confirming whether the service layer node of the ingress node is enabled with the service layer signal failure alarm function and there is an SF alarm.
  • the alarm function has an SF alarm.
  • the service configuration module 30 stores the service related information of the node itself and associates the corresponding network OAM instance, the VC node configures the PW label, the VP node configures the LSP label, and the VS node configures the segment layer related information (such as port, virtual local area network VLAN, hardware). Address MAC and other information), the VS-VP node configures the ring protection related label.
  • the model is divided into the direction of direction and the direction of departure. The arrow in the figure is the direction of the inbound direction, which is the direction in which the message is transmitted.
  • the service configuration module 30 finds the network OAM instance corresponding to the node, the corresponding network OAM instance is associated with the node, and the corresponding inbound node is also searched through the service topology, and the service layer signal invalidation alarm function is configured on the inbound node. In order to subsequently trigger the service layer signal failure alarm function.
  • the packet sending and receiving processing module includes:
  • the polling sub-module 101 is configured to: poll the inbound node and the topology path in the service model of the current network element, determine a service layer node corresponding to the inbound node, and determine whether the service layer node is enabled to disable the service layer signal Alarm function and signal failure alarm;
  • the message assembly sub-module 102 is configured to: when the service layer node has enabled the service layer signal failure alarm function and the signal failure alarm is generated, obtain the service-related information on the topology path, and load the information according to the service-related information group. To the message.
  • the polling sub-module 101 polls the inbound node and the topology path in the service model of the current network element.
  • the service layer node corresponding to the inbound node is determined through the topology path, and the service layer of the inbound node can be obtained.
  • the node service layer signal failure alarm function status information and whether there is a signal failure SF alarm information through which the service layer node of the incoming node is enabled to have the service layer signal failure alarm function enabled and whether there is an SF alarm.
  • the service-related information configured on the path can be found.
  • the packet-assembly sub-module 102 obtains the service-related signal failure alarm function and the SF alarm is generated on the service layer node. Information can be used to assemble incoming messages based on this information.
  • the service layer related information includes: a network structure layer label, a virtual local area network information, and a hardware address on the topology path; where the network structure layer label is a pseudo line label, a tunnel label, or a ring Network protection related label;
  • the message assembly submodule 102 includes:
  • the first obtaining unit 1021 is configured to: the service layer signal is disabled at the service layer node Obtaining the network structure layer label, the virtual local area network information, and the hardware address on the topology path when the alarm function is present and the signal failure alarm is generated;
  • the message assembling unit 1022 is configured to: use the hardware address of the current network element as the destination hardware address of the packet, enter the label of the network structure layer as the label of the packet, and use the virtual local area network information as the virtual local area network information of the packet, and According to the network management standard, the type of the message and the protocol data unit are filled in, and the assembly of the incoming message is completed.
  • the service configuration module 30 stores the service related information of the node itself in the node, the VC node configures the PW label, the VP node configures the LSP label, and the VS-VP node configures the ring network protection related label, and these PW labels, LSP labels, etc. are the network structure layer. label.
  • the first obtaining module 1021 acquires the network structure layer label, the virtual local area network information, and the hardware address on the topology path when the service layer signal has failed the service layer signal failure alarm function and the signal failure alarm is present, and then the message assembling unit 1022 will present the current.
  • the hardware address of the NE is used as the destination hardware address of the packet, and the label of the inbound network structure layer is used as the label of the packet.
  • the virtual LAN information is used as the virtual LAN information of the packet, and the type and protocol of the packet are filled according to the network management standard.
  • the data unit completes the assembly of the incoming message and obtains the incoming message.
  • the packet transmission and reception processing module is further configured to: receive and forward the inbound message, and send Go to the switch chip for processing.
  • the switch chip 20 includes:
  • the determining sub-module 201 is configured to: determine whether the inbound message needs to be terminated;
  • the forwarding sub-module 202 is configured to: when the inbound packet does not need to be terminated, forward the inbound packet;
  • the processing sub-module 203 is configured to: when the inbound packet needs to be terminated, return the inbound packet to the packet sending and receiving processing module of the current network element by using an access control list.
  • the judging sub-module 201 first judges whether the incoming packet needs to be terminated, and the forwarding sub-module 202 forwards the incoming packet when the incoming packet does not need to be terminated, and the processing sub-module 203:
  • the ACL is used to return the packet to the packet sending and receiving processing module of the current network element for termination processing.
  • the packet sending and receiving processing module is further configured to: receive an inbound packet returned by the switching chip, determine whether a network OAM instance is configured corresponding to the current node, and terminate the inbound report if a network management instance is configured.
  • the service layer signal failure alarm is generated, and the inbound packet is discarded if no network management instance is configured.
  • the switch chip returns the packet sending and receiving processing module for the inbound packet that needs to be terminated.
  • the packet sending and receiving processing module first determines whether the current node has a network OAM instance. If the network OAM instance is configured, the incoming packet is terminated. The service layer signal invalidation alarm is generated. If no network management instance is configured, the inbound packet is discarded. After the AIS alarm is generated, it will be synchronized to the corresponding client layer node, which can trigger the switchover and report the AIS alarm to the user to notify the user of the service layer signal failure status. Of course, if no inbound packet is received within the preset time, the AIS alarm disappears.
  • FIG. 4 shows an application scenario.
  • the network element NE1 and the network element NE3 are edge routers, and the network element NE2 is an intermediate router in NE1 and NE2.
  • TMS is configured
  • TMP and TMC are configured between NE1 and NE3, and service layer and client layer relationship are between TMS-TMP-TMC.
  • TMS is the service layer of TMP
  • TMP is the service layer of TMC.
  • Scenario 1 When the service layer and the client layer are not on one device, such as the TMS-MEG1 segment layer on the NE2 - the service layer signal failure alarm of the instance 1 is transmitted to the TMP-MEG2 tunnel layer of the NE3 - instance 2:
  • the application of the service layer signal failure detecting device in NE2 is shown in Figure 5.
  • the tunnel is switched from interface 1 to interface 2.
  • the packet sending and receiving processing module polls the incoming direction of the NE2 service model according to S601.
  • the node and the topology path determine the service layer node corresponding to the inbound node through the topological relationship; and the service layer signal failure alarm function status information of the service layer node obtained by the polling and whether there is a signal invalid SF alarm information, according to S602
  • S603 determines whether the service layer node is enabled with AIS, whether the service layer node has an SF alarm, and if the service layer node has enabled the service layer signal failure alarm function and the SF alarm is generated, according to S604, the inbound packet is triggered to be sent according to the topology.
  • the service-related information on the path encapsulates the inbound packet, and the incoming packet is the packet on the analog inbound tunnel (that is, the packet in the A part shown in FIG. 5 is the packet that is received by the B part, and the destination hardware.
  • the address DA is the MAC address of the rack hardware of the NE2, and the label is the label of the tunnel.
  • the virtual LAN information Vlan is the virtual LAN information of the tunnel.
  • the type of the packet is Typ. e is 8847); according to S605, the switch chip determines that the inbound message is not required to be terminated, and is directly forwarded to NE3.
  • the packet sending and receiving processing module receives the inbound packet sent by the NE2 and sends it to the switching chip for processing.
  • the switching chip determines that the incoming packet needs to be terminated, and the access control is performed.
  • the list returns the inbound packet to the packet sending and receiving processing module.
  • the packet sending and receiving processing module determines whether the network OAM instance is configured on the NE3 according to the S606, and if the network OAM instance is configured, The service layer signal failure alarm is generated. If no network OAM instance is configured, the inbound packet will be discarded.
  • the application of the service layer signal failure detecting device in NE1 is shown in Figure 7.
  • the specific execution steps are as shown in Figure 8.
  • the packet sending and receiving processing module polls the inbound node and the topology path in the NE1 service model according to S701, and passes the topology relationship. Determining the service layer node corresponding to the inbound node; and determining whether the service layer node is enabled according to S702, S703 according to the information of the service layer signal failure alarm function status information of the service layer node acquired by the polling and whether there is a signal failure SF alarm.
  • the inbound packet is triggered to be sent, and the service related information is encapsulated according to the service information on the topology path.
  • the message to the message (such as the message in Part A shown in Figure 7 is the message received in Part B).
  • the switch chip determines that the inbound packet needs to be terminated and does not forward, and returns the incoming packet to the packet receiving and processing module. After receiving the incoming packet, the packet receiving and processing module determines according to S706. If the network OAM instance is configured on the NE1, the service layer signal invalidation alarm is generated. If no network OAM instance is configured, the inbound packet will be discarded.
  • the packet transceiving processing module 10 polls the inbound node and the topology path in the service model of the current network element, and can obtain the service layer node of the inbound node. Enable the service layer signal failure alarm function and whether there is information of the signal failure SF alarm, so that when the service layer node of the ingress node is enabled to have the service layer signal failure alarm function and the SF alarm is present, the packet can be loaded into the packet. The incoming message is forwarded and processed by the switch chip 20.
  • the service layer node can trigger the assembly and transmission of the message as soon as the SF alarm is generated, which can quickly detect the service layer signal failure alarm, so that the protection switching occurs when the service layer signal fails. Can be more stable and guarantee the transmission quality, Improve network performance.
  • the embodiment of the present invention further provides a service layer signal failure detection method, which is applied to a network element, and includes:
  • Step 11 Polling the inbound node and the topology path in the service model of the current network element, and when the service layer node of the ingress node has enabled the service layer signal failure alarm function and there is a signal failure alarm, the group is loaded into the packet. ;
  • Step 12 Forward or terminate the inbound message.
  • step 11 comprising:
  • Step 111 Polling an inbound node and a topology path in a service model of the current network element, determining a service layer node corresponding to the inbound node, and whether the service layer node is enabled with a service layer signal failure alarm function and having a signal failure Alarm
  • Step 112 When the service layer node has enabled the service layer signal failure alarm function and the signal failure alarm is generated, the service related information on the topology path is obtained, and the packet is loaded according to the service related information group.
  • the service layer related information includes: a network structure layer label, a virtual local area network information, and a hardware address on the topology path, where the network structure layer label is a pseudo line label, a tunnel label, or a ring network protection related label;
  • Step 112 comprising:
  • step 1121 when the service layer signal failure alarm function is enabled and the signal failure alarm is generated, the network structure layer label, the virtual local area network information, and the hardware address on the topology path are obtained.
  • Step 1122 The hardware address of the current network element is used as the destination hardware address of the packet, and the label of the incoming network structure layer is used as the label of the packet, and the virtual local area network information is used as the virtual local area network information of the packet, and the report is filled according to the network management standard.
  • the type of the text and the protocol data unit complete the assembly of the incoming message.
  • step 12 includes:
  • Step 121 Determine whether the inbound packet needs to be terminated.
  • Step 122 Forward the inbound packet when the inbound packet does not need to be terminated.
  • Step 122 ′ when the inbound packet needs to be terminated, the inbound packet is returned to the packet sending and receiving processing module of the current network element by using an access control list.
  • the method further includes:
  • step 13 the forwarded incoming message is received and sent to the switch chip for processing.
  • the method further includes:
  • Step 14 Receive an inbound packet returned by the switch chip, determine whether a network management instance is configured corresponding to the current node, and if the network management instance is configured, terminate the inbound packet and generate a service layer signal invalidation alarm. The inbound packet is discarded if no network management instance is configured.
  • the method further includes:
  • Step 15 Establish a service model of a three-layer structure in which the node type corresponds to the multi-protocol label switching transmission technology; wherein the service model constructs an inter-node topology according to the service relationship; the VC node of the service model corresponds to a pseudo-line layer, and the VP node corresponds to In the tunnel layer, the VS node corresponds to the segment layer; the node of the service model stores its own service-related information and associates with the corresponding network OAM instance.
  • the service layer signal failure detection method of the embodiment of the present invention polls the inbound node and the topology path in the service model of the current network element, and can obtain whether the service layer node of the ingress node enables the service layer signal failure alarm function and whether there is a signal.
  • the information of the failed SF alarm is such that when the service layer node of the ingress node is enabled to have the service layer signal failure alarm function and the SF alarm is generated, the packet can be loaded into the packet, and the incoming packet is forwarded and processed through the switch chip. .
  • the service layer node can trigger the assembly and transmission of the message as soon as the SF alarm is generated, which can quickly detect the service layer signal failure alarm, so that the protection switching occurs when the service layer signal fails. Can be more stable, guarantee transmission quality and improve network performance.
  • the method is applied to the service layer signal failure detecting device, and the implementation manner of the service layer signal failure detecting device is applicable to the method, and the same technical effect can be achieved.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the invention can quickly detect the failure of the service layer signal, so that the protection switching when the service layer signal fails can be more stable, ensure the transmission quality, and improve the network performance.

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Abstract

一种服务层信号失效检测装置及方法，该装置包括：报文收发处理模块，设置为轮询当前网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；交换芯片，设置为将所述入向报文进行转发或终结处理。

Description

一种服务层信号失效检测装置及方法 技术领域
本发明涉及通信技术领域，特别是指一种服务层信号失效检测装置及方法。
背景技术
在电信业务的网协(IP)化趋势的推动下，传输网承载的业务从以时分复用模式(TDM)为主向以IP为主转变，传统的面向TDM业务设计的同步数字体系(SDH)传输网技术和基于SDH的多业务传送平台技术MSTP都无法满足以分组业务为主的应用需求。而未来市场需要一种能够有效传递分组业务，同时提供电信级操作管理维护(OAM)和保护的分组传送技术，在这样的需求驱动下，分组传送网成为新的选择。当前主要有传送多协议标签交换(T-MPLS)、运营商骨干网传输(PBT)这两种分组传送网(PTN)技术进入标准组织并开始在电信网络部署，而T-MPLS技术已在标准化进程中抢占先机，并演进为多协议标签交换传送(MPLS-TP)。
如图1所示，MPLF-TP为三层结构，MPLF-TP模型从内到外可分为伪线层(TMC)3-隧道层(TMP)2-段层(TMS)1，不同的伪线可以走相同的隧道，不同的隧道可以走相同的段层路径。TMS-TMP-TMC之间为服务层和客户层关系，服务层告警指示信号(AIS)为OAM提供的一种告警检测功能，即为当前服务层检测到信号失效(SF)告警时通知客户层。但是，相关技术的AIS是以1s为周期发送报文来检测告警，该过程需要由软件实现，此后当用AIS警告触发保护倒换时就存在倒换超标问题，无法保证告警检测+倒换处理在50ms以内完成。
发明内容
本发明实施例提供一种服务层信号失效检测装置及方法，实现快速检测服务层信号失效，从而使得出现服务层信号失效时的保护倒换能够更加稳定， 保证传输质量，提高网络性能，更大程度上满足运营商及用户对网络传输质量的要求。
为达到上述目的，本发明的实施例提供一种服务层信号失效检测装置，应用于网元中，包括：
报文收发处理模块，设置为：轮询网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；
交换芯片，设置为：将所述入向报文进行转发或终结处理。
可选地，所述报文收发处理模块包括：
轮询子模块，设置为：轮询当前网元的业务模型中的入向节点和拓扑路径，确定对应所述入向节点的服务层节点，以及所述服务层节点是否启用服务层信号失效告警功能且存在信号失效告警；
报文组装子模块，设置为：在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文。
可选地，所述业务层相关信息包括：所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；其中，所述网络结构层标签是伪线标签、隧道标签或环网保护相关标签；
所述报文组装子模块包括：
第一获取单元，设置为：在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；
报文组装单元，设置为：将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装。
可选地，所述交换芯片包括：
判断子模块，设置为：判断所述入向报文是否需要进行终结处理；
转发子模块，设置为：在所述入向报文不需要进行终结处理时，将所述 入向报文进行转发；
处理子模块，设置为：在所述入向报文需要进行终结处理时，通过访问控制列表将所述入向报文返回至当前网元的报文收发处理模块。
可选地，所述报文收发处理模块还用于接收转发的入向报文，并发送至交换芯片进行处理。
可选地，所述报文收发处理模块还用于接收所述交换芯片返回的入向报文，判断在当前节点是否对应配置有网络管理实例，若配置有网络管理实例则终结所述入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃所述入向报文。
可选地，所述服务层信号失效检测装置还包括：
业务配置模块，设置为：建立节点类型对应多协议标签交换传送技术的三层结构的业务模型；其中，所述业务模型按照业务关系构建节点间拓扑；所述业务模型的VC节点对应伪线层，VP节点对应隧道层，VS节点对应段层；所述业务模型的节点保存有自身的业务相关信息且关联对应的网络OAM实例。
为达到上述目的，本发明的实施例还提供了一种服务层信号失效检测方法，应用于网元中，包括：
轮询网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；
将所述入向报文进行转发或终结处理。
可选地，轮询当前网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文，包括：
轮询当前网元的业务模型中的入向节点和拓扑路径，确定对应所述入向节点的服务层节点，以及所述服务层节点是否启用服务层信号失效告警功能且存在信号失效告警；
在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向 报文。
可选地，所述业务层相关信息包括：所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；其中，所述网络结构层标签是伪线标签、隧道标签或环网保护相关标签；
在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文，包括：
在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；
将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装。
可选地，将所述入向报文进行转发或终结处理，包括：
判断所述入向报文是否需要进行终结处理；
在所述入向报文不需要进行终结处理时，将所述入向报文进行转发；
在所述入向报文需要进行终结处理时，通过访问控制列表将所述入向报文返回至当前网元的报文收发处理模块。
可选地，将所述入向报文进行转发或终结处理，还包括：
所述报文收发处理模块接收返回的入向报文，判断在当前节点是否对应配置有网络操作管理维护(OAM)实例，若配置有网络OAM实例则终结所述入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃所述入向报文。
可选地，上述方法还包括：
建立节点类型对应多协议标签交换传送技术的三层结构的业务模型；其中，所述业务模型按照业务关系构建节点间拓扑；所述业务模型的VC节点对应伪线层，VP节点对应隧道层，VS节点对应段层；所述业务模型的节点保存有自身的业务相关信息且关联对应的网络OAM实例。
本发明实施例还提供一种计算机可读存储介质，存储程序指令，当所述 程序指令被执行时可实现上面所述的方法。
本发明实施例的服务层信号失效检测装置，报文收发处理模块轮询当前网元的业务模型中的入向节点和拓扑路径，能够获得入向节点的服务层节点是否启用服务层信号失效告警功能以及是否存在信号失效SF告警的信息，这样，在确认入向节点的服务层节点已启用服务层信号失效告警功能且存在SF告警时，就可以组装入向报文，通过交换芯片将入向报文进行转发和处理。通过不停轮询入向节点服务层的告警状态，一旦服务层节点产生SF告警就能马上触发报文的组装发送，能快速检测服务层信号失效，使得出现服务层信号失效时的保护倒换能够更加稳定，保证传输质量，提高网络性能。
附图概述
图1表示MPLF-TP三层结构的示意图；
图2表示本发明实施例的服务层信号失效检测装置的结构示意图；
图3表示本发明实施例的服务层信号失效检测装置建立的对应MPLF-TP的三层结构的业务模型的拓扑示意图；
图4表示本发明实施例的一应用场景；
图5表示NE2中服务层信号失效检测装置的应用；
图6表示场景一的处理流程；
图7表示NE1中服务层信号失效检测装置的应用；
图8表示场景二的处理流程。
本发明的较佳实施方式
为使本发明要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。
本发明实施例针对相关技术的服务层信号失效检测技术在触发保护倒换超标的问题，提供一种服务层信号失效检测装置，实现简单快速的检测，保证服务层信号失效告警触发倒换的性能，更大程度上保证网络传输质量。
如图2所示，本发明实施例的一种服务层信号失效检测装置，应用于网 元中，包括：
报文收发处理模块10，设置为：轮询当前网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；
交换芯片20，设置为：将所述入向报文进行转发或终结处理。
其中，入向节点是一种功能节点是报文发送节点，可以是伪线PW层节点、隧道LSP层节点或段Section层节点，并且伪线层节点的服务层节点是隧道层节点，隧道层节点的服务层是段层节点。报文收发处理模块10轮询当前网元的业务模型中的入向节点和拓扑路径，能够获得入向节点的服务层节点是否启用服务层信号失效告警功能以及是否存在信号失效SF告警的信息，这样，在确认入向节点的服务层节点已启用服务层信号失效告警功能且存在SF告警时，就可以组装入向报文，入向报文是服务层信号失效告警报文，通过交换芯片20将入向报文进行转发和处理。通过不停轮询入向节点服务层的告警状态，一旦服务层节点产生SF告警就能马上触发报文的组装发送，能快速检测服务层信号失效，使得出现服务层信号失效时的保护倒换能够更加稳定，保证传输质量，提高网络性能。
其中，所述服务层信号失效检测装置还包括：
业务配置模块30，设置为：建立节点类型对应多协议标签交换传送技术的三层结构的业务模型；其中，所述业务模型按照业务关系构建节点间拓扑；所述业务模型的VC节点对应伪线层，VP节点对应隧道层，VS节点对应段层；所述业务模型的节点保存有自身的业务相关信息且关联对应的网络OAM实例。
业务配置模块30主要完成业务模型的建立，如图3所示的业务拓扑，对应MPLS-TP，VC节点对应PW层，VP节点对应LSP层，VS节点对应Section层，图示示例还包括了VS-VP节点对应环网保护虚拟层，如果没有配置环网保护则没有VS-VP节点。每个节点有工作路径和保护路径，分别表示各个层次的保护关系，轮询入向节点和拓扑路径，确认入向节点的服务层节点是否启用服务层信号失效告警功能且存在SF告警时，若存在保护路径，需要确认入向节点工作路径和保护路径上的服务层节点是否都启用服务层信号失效告 警功能且存在SF告警。业务配置模块30在节点保存有节点自身的业务相关信息且关联对应的网络OAM实例，VC节点配置PW标签，VP节点配置LSP标签，VS节点配置段层相关信息(如端口、虚拟局域网VLAN、硬件地址MAC等信息)，VS-VP节点配置环网保护相关标签。该模型分入向方向和出向方向，图示箭头为入向方向，是报文传递的方向。业务配置模块30找到节点对应的网络OAM实例后，在该节点关联对应的网络OAM实例，还会通过业务拓扑查找对应的入向节点，在该入向节点上配置启用服务层信号失效告警功能，以便后续触发服务层信号失效告警功能。
在上述实施例的基础上，本发明实施例的服务层信号失效检测装置中，所述报文收发处理模块包括：
轮询子模块101，设置为：轮询当前网元的业务模型中的入向节点和拓扑路径，确定对应所述入向节点的服务层节点，以及所述服务层节点是否启用服务层信号失效告警功能且存在信号失效告警；
报文组装子模块102，设置为：在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文。
轮询子模块101轮询当前网元的业务模型中的入向节点和拓扑路径，在轮询过程中，通过拓扑路径确定对应入向节点的服务层节点，并能够获得入向节点的服务层节点服务层信号失效告警功能状态信息以及是否存在信号失效SF告警的信息，通过这些信息确认入向节点的服务层节点是否已启用服务层信号失效告警功能且是否存在SF告警。在轮询过程中，是能够查找出路径上配置的业务相关信息，报文组装子模块102在服务层节点已启用服务层信号失效告警功能且存在SF告警时，获取到拓扑路径上的业务相关信息，就可根据这些信息来进行入向报文的组装。
在本发明实施例中，所述业务层相关信息包括：所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；其中，所述网络结构层标签是伪线标签、隧道标签或环网保护相关标签；
所述报文组装子模块102包括：
第一获取单元1021，设置为：在所述服务层节点已启用服务层信号失效 告警功能且存在信号失效告警时，获取所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；
报文组装单元1022，设置为：将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装。
业务配置模块30在节点保存有节点自身的业务相关信息，VC节点配置PW标签，VP节点配置LSP标签，VS-VP节点配置环网保护相关标签，而这些PW标签、LSP标签等就是网络结构层标签。第一获取模块1021在服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址，随后，报文组装单元1022将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装，得到入向报文。
应该了解的是，网元间也是存在服务层信号失效告警报文的传递，因此，在本发明实施例中，所述报文收发处理模块还设置为：接收转发的入向报文，并发送至交换芯片进行处理。
入向报文可能是需要转发或终结处理的，因此，在本发明实施例中，所述交换芯片20包括：
判断子模块201，设置为：判断所述入向报文是否需要进行终结处理；
转发子模块202，设置为：在所述入向报文不需要进行终结处理时，将所述入向报文进行转发；
处理子模块203，设置为：在所述入向报文需要进行终结处理时，通过访问控制列表将所述入向报文返回至当前网元的报文收发处理模块。
判断子模块201首先会对入向报文进行判断，判断其是否需要终结处理，转发子模块202在入向报文不需要进行终结处理时，会将入向报文进行转发，而处理子模块203在入向报文需要进行终结处理时，会通过访问控制列表ACL将报文返回至当前网元的报文收发处理模块，进行终结处理。
其中，所述报文收发处理模块还设置为：接收所述交换芯片返回的入向报文，判断在当前节点是否对应配置有网络OAM实例，若配置有网络管理实例则终结所述入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃所述入向报文。
交换芯片将需要进行终结处理的入向报文返回报文收发处理模块，报文收发处理模块首先会判断在当前节点是否对应配置有网络OAM实例，若配置有网络OAM实例则终结该入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃该入向报文。AIS告警产生后会同步到对应的客户层节点上，从而可以触发倒换，同时向用户上报AIS告警，通知用户服务层信号失效状态。当然，若在预设时间内未收到入向报文，则AIS告警消失。
下面结合附图说明本发明实施例的服务层信号失效检测装置的应用，图4所示为一应用场景，网元NE1和网元NE3是边缘路由器，网元NE2是中间路由器，在NE1和NE2之间配置TMS，NE1和NE3之间配置TMP和TMC，TMS-TMP-TMC之间为服务层和客户层关系，TMS是TMP的服务层，TMP是TMC的服务层。
场景一，当服务层和客户层不在一个设备上，如NE2上的TMS-MEG1段层-实例1的服务层信号失效告警向NE3的TMP-MEG2隧道层-实例2传递：
NE2中服务层信号失效检测装置的应用如图5所示，隧道从接口1交换到接口2出，如图6所示，报文收发处理模块按照S601，轮询NE2的业务模型中的入向节点和拓扑路径，通过拓扑关系确定对应入向节点的服务层节点；并通过轮询中获取的该服务层节点的服务层信号失效告警功能状态信息以及是否存在信号失效SF告警的信息，按照S602，S603判断服务层节点是否启用AIS，服务层节点是否有SF告警；确认该服务层节点已启用服务层信号失效告警功能且存在SF告警时，按照S604，触发入向报文的发送，根据拓扑路径上的业务相关信息封装入向报文，该入向报文是模拟入端口隧道上的报文(即图5中所示A部分的报文是模拟了B部分接收的报文，目的硬件地址DA为该NE2的机架硬件地址MAC，标签为入隧道的标签，虚拟局域网信息Vlan为入隧道的虚拟局域网信息Vlan，报文的类型Type为8847)；按照S605，交换芯片判断获得该入向报文不需要进行终结处理，直接转发到NE3。
NE3的服务层信号失效检测装置中，报文收发处理模块接收到NE2发送的入向报文后，交由交换芯片处理，交换芯片判断得知该入向报文需要进行终结处理，通过访问控制列表又将该入向报文返回至报文收发处理模块，报文收发处理模块接收到该入向报文后，按照S606，判断NE3上是否对应配置网络OAM实例，若配置有网络OAM实例，就会产生服务层信号失效告警；若没有配置网络OAM实例，该入向报文会被丢弃。
场景二，当服务层和客户层在同一设备上，如NE1上TMS-MEG1段层-实例1的告警向NE1的TMP-MEG2隧道层-实例2传递：
NE1中服务层信号失效检测装置的应用如图7所示，具体执行步骤如图8所示，报文收发处理模块按照S701轮询NE1的业务模型中的入向节点和拓扑路径，通过拓扑关系确定对应入向节点的服务层节点；并通过轮询中获取的该服务层节点的服务层信号失效告警功能状态信息以及是否存在信号失效SF告警的信息，按照S702，S703判断服务层节点是否启用AIS，服务层节点是否有SF告警；确认该服务层节点已启用服务层信号失效告警功能且存在SF告警时，按照S704，触发入向报文的发送，根据拓扑路径上的业务相关信息封装入向报文(如图7所示A部分的报文是模拟了B部分接收的报文)。按照S705，交换芯片判断获得该入向报文需要进行终结处理不转发，将该入向报文返回报文收发处理模块，报文收发处理模块接收到该入向报文后，按照S706，判断NE1上是否对应配置网络OAM实例，若配置有网络OAM实例，就会产生服务层信号失效告警；若没有配置网络OAM实例，该入向报文会被丢弃。
综上所述，本发明实施例的服务层信号失效检测装置，报文收发处理模块10轮询当前网元的业务模型中的入向节点和拓扑路径，能够获得入向节点的服务层节点是否启用服务层信号失效告警功能以及是否存在信号失效SF告警的信息，这样，在确认入向节点的服务层节点已启用服务层信号失效告警功能且存在SF告警时，就可以组装入向报文，通过交换芯片20将入向报文进行转发和处理。通过不停轮询入向节点服务层的告警状态，一旦服务层节点产生SF告警就能马上触发报文的组装发送，能快速检测服务层信号失效告警，使得出现服务层信号失效时的保护倒换能够更加稳定，保证传输质量， 提高网络性能。
本发明的实施例还提供了一种服务层信号失效检测方法，应用于网元中，包括：
步骤11，轮询当前网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；
步骤12，将所述入向报文进行转发或终结处理。
其中，步骤11，包括：
步骤111，轮询当前网元的业务模型中的入向节点和拓扑路径，确定对应所述入向节点的服务层节点，以及所述服务层节点是否启用服务层信号失效告警功能且存在信号失效告警；
步骤112，在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文。
其中，所述业务层相关信息包括：所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；其中，所述网络结构层标签是伪线标签、隧道标签或环网保护相关标签；
步骤112，包括：
步骤1121，在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；
步骤1122，将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装。
其中，步骤12，包括：
步骤121，判断所述入向报文是否需要进行终结处理；
步骤122，在所述入向报文不需要进行终结处理时，将所述入向报文进行转发；
步骤122’，在所述入向报文需要进行终结处理时，通过访问控制列表将所述入向报文返回至当前网元的报文收发处理模块。
其中，所述方法还包括：
步骤13，接收转发的入向报文，并发送至交换芯片进行处理。
其中，所述方法还包括：
步骤14，接收所述交换芯片返回的入向报文，判断在当前节点是否对应配置有网络管理实例，若配置有网络管理实例则终结所述入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃所述入向报文。
其中，所述方法还包括：
步骤15，建立节点类型对应多协议标签交换传送技术的三层结构的业务模型；其中，所述业务模型按照业务关系构建节点间拓扑；所述业务模型的VC节点对应伪线层，VP节点对应隧道层，VS节点对应段层；所述业务模型的节点保存有自身的业务相关信息且关联对应的网络OAM实例。
本发明实施例的服务层信号失效检测方法，轮询当前网元的业务模型中的入向节点和拓扑路径，能够获得入向节点的服务层节点是否启用服务层信号失效告警功能以及是否存在信号失效SF告警的信息这样，在确认入向节点的服务层节点已启用服务层信号失效告警功能且存在SF告警时，就可以组装入向报文，通过交换芯片将入向报文进行转发和处理。通过不停轮询入向节点服务层的告警状态，一旦服务层节点产生SF告警就能马上触发报文的组装发送，能快速检测服务层信号失效告警，使得出现服务层信号失效时的保护倒换能够更加稳定，保证传输质量，提高网络性能。
需要说明的是，该方法是应用于上述服务层信号失效检测装置的方法，上述服务层信号失效检测装置的实现方式适用于该方法，也能达到相同的技术效果。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中，所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行，在执行时，包括方法实施例的步骤之一或其组合。
可选地，上述实施例的全部或部分步骤也可以使用集成电路来实现，这些步骤可以被分别制作成一个个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现，它们可以集中在单个的计算装置上，也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块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。上述提到的计算机可读取存储介质可以是只读存储器，磁盘或光盘等。
工业实用性
本发明实施例能快速检测服务层信号失效，使得出现服务层信号失效时的保护倒换能够更加稳定，保证传输质量，提高网络性能。

Claims (14)

  1. 一种服务层信号失效检测装置，应用于网元中，包括：
    报文收发处理模块，设置为：轮询所述网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；以及
    交换芯片，设置为：将所述入向报文进行转发或终结处理。
  2. 根据权利要求1所述的服务层信号失效检测装置，其中，所述报文收发处理模块包括：
    轮询子模块，设置为：轮询当前网元的业务模型中的入向节点和拓扑路径，确定对应所述入向节点的服务层节点，以及所述服务层节点是否启用服务层信号失效告警功能且存在信号失效告警；以及
    报文组装子模块，设置为：在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文。
  3. 根据权利要求2所述的服务层信号失效检测装置，其中，所述业务层相关信息包括：所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；其中，所述网络结构层标签是伪线标签、隧道标签或环网保护相关标签；
    所述报文组装子模块包括：
    第一获取单元，设置为：在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；
    报文组装单元，设置为：将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装。
  4. 根据权利要求1所述的服务层信号失效检测装置，其中，所述交换芯片包括：
    判断子模块，设置为：判断所述入向报文是否需要进行终结处理；
    转发子模块，设置为：在所述入向报文不需要进行终结处理时，将所述入向报文进行转发；以及
    处理子模块，设置为：在所述入向报文需要进行终结处理时，通过访问控制列表将所述入向报文返回至当前网元的报文收发处理模块。
  5. 根据权利要求1所述的服务层信号失效检测装置，其中，所述报文收发处理模块还设置为：接收转发的入向报文，并发送至交换芯片进行处理。
  6. 根据权利要求4所述的服务层信号失效检测装置，其中，所述报文收发处理模块还设置为：接收所述交换芯片返回的入向报文，判断在当前节点是否对应配置有网络操作管理维护(OAM)实例，若配置有网络OAM实例则终结所述入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃所述入向报文。
  7. 根据权利要求1所述的服务层信号失效检测装置，还包括：
    业务配置模块，设置为：建立节点类型对应多协议标签交换传送技术的三层结构的业务模型；其中，所述业务模型按照业务关系构建节点间拓扑；所述业务模型的VC节点对应伪线层，VP节点对应隧道层，VS节点对应段层；所述业务模型的节点保存有自身的业务相关信息且关联对应的网络OAM实例。
  8. 一种服务层信号失效检测方法，应用于网元中，包括：
    轮询所述网元的业务模型中的入向节点和拓扑路径，在所述入向节点的服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文；
    将所述入向报文进行转发或终结处理。
  9. 根据权利要求8所述的服务层信号失效检测方法，其中，轮询所述网元的业务模型中的入向节点和拓扑路径，根据所述入向节点及拓扑路径，确定对应所述入向节点的服务层节点，在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，组装入向报文，包括：
    轮询当前网元的业务模型中的入向节点和拓扑路径，确定对应所述入向节点的服务层节点，以及所述服务层节点是否启用服务层信号失效告警功能 且存在信号失效告警；
    在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文。
  10. 根据权利要求9所述的服务层信号失效检测方法，其中，所述业务层相关信息包括：所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；其中，所述网络结构层标签是伪线标签、隧道标签或环网保护相关标签；
    在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的业务相关信息，根据所述业务相关信息组装入向报文，包括：
    在所述服务层节点已启用服务层信号失效告警功能且存在信号失效告警时，获取所述拓扑路径上的网络结构层标签、虚拟局域网信息和硬件地址；
    将当前网元的硬件地址作为报文的目的硬件地址，入向网络结构层标签作为报文的标签，所述虚拟局域网信息作为报文的虚拟局域网信息，并根据网络管理标准填写报文的类型及协议数据单元，完成入向报文的组装。
  11. 根据权利要求8所述的服务层信号失效检测方法，其中，将所述入向报文进行转发或终结处理，包括：
    判断所述入向报文是否需要进行终结处理；
    在所述入向报文不需要进行终结处理时，将所述入向报文进行转发；
    在所述入向报文需要进行终结处理时，通过访问控制列表将所述入向报文返回至所述网元的报文收发处理模块。
  12. 根据权利要求11所述的服务层信号失效检测方法，其中，将所述入向报文进行转发或终结处理，还包括：
    所述报文收发处理模块接收返回的入向报文，判断在当前节点是否对应配置有网络操作管理维护(OAM)实例，若配置有网络OAM实例则终结所述入向报文且产生服务层信号失效告警，若没有配置网络管理实例则丢弃所述入向报文。
  13. 根据权利要求8所述的服务层信号失效检测方法，还包括：
    建立节点类型对应多协议标签交换传送技术的三层结构的业务模型；其中，所述业务模型按照业务关系构建节点间拓扑；所述业务模型的VC节点对应伪线层，VP节点对应隧道层，VS节点对应段层；所述业务模型的节点保存有自身的业务相关信息且关联对应的网络OAM实例。
  14. 一种计算机可读存储介质，存储程序指令，当所述程序指令被执行时可实现权利要求8-13任一项所述的方法。
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112039703A (zh) * 2020-08-28 2020-12-04 迈普通信技术股份有限公司 路径确定方法、装置、设备及可读存储介质
CN112583650A (zh) * 2019-09-27 2021-03-30 烽火通信科技股份有限公司 一种spn中sr-be隧道链路检测方法及系统
CN113472560A (zh) * 2020-03-31 2021-10-01 比亚迪股份有限公司 管理车辆局域网络的方法以及车辆和存储介质
CN116094938A (zh) * 2023-01-16 2023-05-09 紫光云技术有限公司 基于kafka的网络拓扑同步方法、设备、服务器及存储介质
CN116132261A (zh) * 2022-12-26 2023-05-16 浪潮通信信息系统有限公司 一种设备故障与业务的关联分析方法、系统及装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107579868B (zh) * 2016-07-04 2023-05-23 中兴通讯股份有限公司 一种网元失效影响业务检测的方法和装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102136882A (zh) * 2011-03-04 2011-07-27 华为技术有限公司 误码状态传递的方法及装置
CN102752126A (zh) * 2011-04-22 2012-10-24 中兴通讯股份有限公司 一种自动保护倒换方法、主设备及设备
CN103580886A (zh) * 2012-07-25 2014-02-12 中兴通讯股份有限公司 分组传送网络保护倒换装置和方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3482996B2 (ja) * 1999-12-03 2004-01-06 日本電気株式会社 Ａｔｍスイッチ
CN101499820B (zh) * 2008-02-01 2013-09-11 华为技术有限公司 业务传输的保护方法和网络设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102136882A (zh) * 2011-03-04 2011-07-27 华为技术有限公司 误码状态传递的方法及装置
CN102752126A (zh) * 2011-04-22 2012-10-24 中兴通讯股份有限公司 一种自动保护倒换方法、主设备及设备
CN103580886A (zh) * 2012-07-25 2014-02-12 中兴通讯股份有限公司 分组传送网络保护倒换装置和方法

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112583650A (zh) * 2019-09-27 2021-03-30 烽火通信科技股份有限公司 一种spn中sr-be隧道链路检测方法及系统
CN112583650B (zh) * 2019-09-27 2022-06-10 烽火通信科技股份有限公司 一种spn中sr-be隧道链路检测方法及系统
CN113472560A (zh) * 2020-03-31 2021-10-01 比亚迪股份有限公司 管理车辆局域网络的方法以及车辆和存储介质
CN113472560B (zh) * 2020-03-31 2023-01-06 比亚迪股份有限公司 管理车辆局域网络的方法以及车辆和存储介质
CN112039703A (zh) * 2020-08-28 2020-12-04 迈普通信技术股份有限公司 路径确定方法、装置、设备及可读存储介质
CN112039703B (zh) * 2020-08-28 2022-04-22 迈普通信技术股份有限公司 路径确定方法、装置、设备及可读存储介质
CN116132261A (zh) * 2022-12-26 2023-05-16 浪潮通信信息系统有限公司 一种设备故障与业务的关联分析方法、系统及装置
CN116132261B (zh) * 2022-12-26 2024-05-28 浪潮通信信息系统有限公司 一种设备故障与业务的关联分析方法、系统及装置
CN116094938A (zh) * 2023-01-16 2023-05-09 紫光云技术有限公司 基于kafka的网络拓扑同步方法、设备、服务器及存储介质
CN116094938B (zh) * 2023-01-16 2024-04-19 紫光云技术有限公司 基于kafka的网络拓扑同步方法、设备、服务器及存储介质

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