WO2015051696A1 - Procédé et appareil de transmission d'un paquet oam - Google Patents

Procédé et appareil de transmission d'un paquet oam Download PDF

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Publication number
WO2015051696A1
WO2015051696A1 PCT/CN2014/087062 CN2014087062W WO2015051696A1 WO 2015051696 A1 WO2015051696 A1 WO 2015051696A1 CN 2014087062 W CN2014087062 W CN 2014087062W WO 2015051696 A1 WO2015051696 A1 WO 2015051696A1
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WO
WIPO (PCT)
Prior art keywords
mep
master node
oam
virtual home
oam packet
Prior art date
Application number
PCT/CN2014/087062
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English (en)
Chinese (zh)
Inventor
蔡亨光
张慧勇
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2015051696A1 publication Critical patent/WO2015051696A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting an OAM message.
  • MPLS Multi-Protocol Label Switching
  • the packet network usually adopts the dual-homing mode. As shown in Figure 1, the network element A and the network elements B and C respectively establish a service connection or channel. When the network element B is valid, the network element A can perform service transmission through the network element B. When the network element B fails, the network element A can perform service transmission through the network element C. Therefore, only the traffic between A and B is normally transmitted.
  • the channel between NEs A and C can be considered as the protection path of the working channel between networks A and B.
  • Dual-homing protection is a protection scheme for services when a landing node fails.
  • the network element A, the network element B, and the network element C are MEPs (Maintenance Entity Group End Point), then the network element A and the network element B, The network element C needs to communicate with the OAM (operation administration and maintenance) message.
  • OAM operation administration and maintenance
  • the network element A receives two OAM packets, which are from the network element B and the network element C.
  • the embodiment of the invention provides a method and a device for transmitting an OAM message, which are used to solve the technical problem that the network element in the prior art may report an alarm abnormally due to an over-received message.
  • a first aspect of the present invention provides a method for transmitting an OAM message, including:
  • the MEP in the virtual home MEP determines whether the MEP is a master node
  • the MEP generates and sends a first OAM message to the receiving end when determining that the MEP is the master node;
  • the MEP prohibits generating the first OAM packet when determining that the MEP is not the master node
  • the virtual home MEP includes at least two MEPs, and the attribute parameters of each MEP are the same.
  • the method further includes: receiving a second OAM packet from the receiving end.
  • the method further includes:
  • the MEP sends the second OAM packet to the primary node in the virtual home MEP when determining that the MEP is not the master node.
  • the method further includes: The MEP processes the second OAM packet when determining that the MEP is the master node.
  • the virtual home MEP has one and only one master node; and the method further includes: when the preset condition is met, the MEP is An active/standby switchover takes place on another MEP.
  • a second aspect of the present invention provides an apparatus for transmitting an OAM message, where the apparatus is applied to an MEP in a virtual home MEP;
  • a determining module configured to determine whether the MEP is a master node
  • the operation module is configured to: when the MEP is determined to be the primary node, generate and send the first OAM packet to the receiving end, and when the determining that the MEP is not the primary node, the first OAM packet is prohibited from being generated;
  • the virtual home MEP includes at least two MEPs, and the attribute parameters of each MEP are the same.
  • the apparatus further includes a receiving module, configured to receive a second OAM packet from the receiving end.
  • the operation module is further configured to: when determining that the MEP is not the master node, send the second OAM packet to the virtual The primary node in the home MEP.
  • the device further includes a processing module, configured to process the second OAM packet when determining that the MEP is a master node.
  • the virtual home MEP has only one A master node; the device further includes a switching module, configured to perform an active/standby switchover with another MEP when the preset condition is met.
  • the virtual home MEP includes at least two MEPs, and the same attribute parameter of each MEP is equivalent to virtualizing at least two MEPs into one MEP, and the virtual MEP is regarded as a MEP.
  • the virtual MEP only the master node generates and sends an OAM packet to the receiving end, and the slave node does not generate an OAM packet.
  • the OAM packet is not sent to the receiving end. Therefore, the virtual MEP sends only one first OAM packet to the receiving end, and the two MEPs do not need to be the same as in the prior art.
  • the receiving end sends two OAM packets, and the receiving end that receives only one OAM packet obviously does not report an abnormal alarm as in the prior art, and ensures normal operation of each network element.
  • FIG. 1 is a schematic diagram of a dual-homing network in the prior art
  • FIG. 3 is a schematic diagram of a transmission channel of an OAM packet according to an embodiment of the present invention.
  • FIG. 4A is a structural diagram of an apparatus for transmitting an OAM message according to an embodiment of the present invention.
  • 4B is a structural diagram of an apparatus for transmitting an OAM message according to an embodiment of the present invention.
  • FIG. 5 is a structural diagram of an apparatus for transmitting an OAM message according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for transmitting an OAM packet, where the method may include: determining, by the MEP in the virtual home MEP, whether the MEP is a master node; and when the MEP determines that the MEP is a master node, generating Sending a first OAM packet to the receiving end; the MEP prohibits generating the first OAM packet when determining that the MEP is not the master node; wherein the virtual home MEP includes at least two MEPs, and attributes of each MEP The parameters are the same.
  • the virtual home MEP includes at least two MEPs, and the same attribute parameter of each MEP is equivalent to virtualizing at least two MEPs into one MEP, and the virtual MEP is regarded as a MEP.
  • the virtual MEP only the master node generates and sends an OAM packet to the receiving end, and the slave node does not generate an OAM packet, and does not send an OAM packet to the receiving end.
  • the virtual MEP sends only one copy of the first OAM message to the receiving end, and the two MEPs do not send two OAM messages to the receiving end as in the prior art, but only one is received.
  • the receiving end of the OAM message Obviously, there will be no abnormal alarms as in the prior art to ensure the normal operation of each network element.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDM Orthogonal Frequency OFDM (Orthogonal Frequency-Division Multiple Access) system
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • PTN public network system
  • router network system MSTP (Multi-Service Transmission Platform) network system, and other such communication systems.
  • MSTP Multi-Service Transmission Platform
  • the OAMs referred to herein may be MPLS-TP (Multi-Protocol Label Switching Transport Profile) OAM, MPLS OAM, ETH (Ethernet, Ethernet) OAM, and other such OAM.
  • MPLS-TP Multi-Protocol Label Switching Transport Profile
  • MPLS OAM MPLS OAM
  • ETH Ethernet, Ethernet
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • an embodiment of the present invention provides a method for transmitting an OAM packet, and the main processes of the method are as follows:
  • Step 201 The MEP in the virtual home MEP determines whether the MEP is a master node. When it is determined that the MEP is the master node, that is, the determination result is yes, step 202 is performed. When it is determined that the MEP is not the master node, that is, if the determination result is no, step 203 is performed.
  • FIG. 3 is a schematic diagram of a transmission channel of an OAM packet.
  • 2 and 3 in FIG. 3 respectively represent one MEP, and the two MEPs constitute the virtual home MEP, that is, FIG. 3 is an example in which two MEPs are included in the virtual home MEP.
  • the virtual home MEP in the embodiment of the present invention is not limited to being composed of only two MEPs, and may include multiple MEPs.
  • the dotted boxes in Fig. 3 are 2 and 3, indicating that 2 and 3 constitute the virtual home MEP.
  • 1 in FIG. 3 denotes a MEP.
  • 1 may be referred to as a receiving end. 1 does not belong to the virtual home MEP.
  • 1 may be connected to the first network side device, and both 2 and 3 may be connected to the second network side device.
  • the first network side device may be a base station, for example, the second network side device may be an RNC (Radio). Network Controller, Radio Network Controller), not shown in FIG.
  • RNC Radio Network Controller
  • MEP2 and MEP3 shown in FIG. 3 may be two nodes in the network, and the same attribute parameter may be set for MEP2 and MEP3 first, which is equivalent to the MEP2 and the MEP3 is set to the virtual home MEP.
  • the virtual home MEP is an MEP, and the MEP is externally presented as one MEP regardless of how many MEPs are included in the virtual home MEP.
  • Externally presented as a MEP mainly means that for the receiving end, only one virtual home MEP can be seen.
  • the two virtual home MEPs may also be referred to as virtual MEP dual-homing nodes.
  • an attribute parameter of an MEP may include, but is not limited to, a MEG ID (maintenance entity group identity authentication), a MEP ID (endpoint identity authentication of a maintenance entity group), and a MAC Address (Media Access Control Address). Address), and so on.
  • the MEP before the MEP in the virtual home MEP determines whether the MEP is the master node, the MEP may further receive the second OAM packet from the receiving end.
  • the MEP may continue to determine whether the MEP is a master node.
  • the MEP may not need to determine because the MEP is determined to be the primary node, or the MEP may also It is again determined whether the MEP is a master node.
  • the MEP may directly The second OAM packet is processed.
  • the MEP may The second OAM packet is sent to the primary node in the virtual home MEP, and the second OAM packet is processed by the primary node.
  • the primary node and the secondary node in the virtual home MEP have a connection path through which the master node and the slave node can communicate.
  • Step 202 The MEP generates and sends a first OAM packet to the receiving end when determining that the MEP is the master node.
  • the MEP may generate and send the first OAM packet to the receiving end.
  • the primary node in the virtual home MEP may generate the first OAM packet, and may send the first OAM packet to the receiving end, by the receiving The terminal processes the first OAM packet. Then, one MEP in the virtual home MEP may first determine whether the MEP is a master node, and if the MEP is determined to be a master node, the MEP may generate the first OAM packet.
  • Step 203 The MEP, when determining that the MEP is not the master node, prohibits generating the first OAM packet.
  • the virtual home MEP includes at least two MEPs, and the attribute parameters of each MEP are the same.
  • the MEP determines that the MEP is not the master node, the first OAM packet is prohibited from being generated. That is, in the embodiment of the present invention, in the virtual home MEP, only the master node generates an OAM packet, and sends the generated OAM packet to the receiving end, and the slave node does not generate an OAM packet. The OAM packet is not sent to the receiving end, so that the receiving end receives only one OAM packet, which effectively avoids an abnormal alarm on the receiving end.
  • the receiving end may generate the second OAM packet, and may send the second OAM packet to the virtual home MEP, where one MEP of the virtual home MEP receives the After the second OAM packet, the MEP may be first determined to be the master node. If the MEP is determined to be the master node, the MEP may directly process the second OAM packet. If the MEP is not the master node, the MEP may send the second OAM packet to the master node, and the master node processes the second OAM packet.
  • the method may further include: when the preset condition is met, the MEP performs an active/standby switchover with another MEP.
  • the MEP can complete the active/standby switchover with a slave node when the preset condition is met.
  • the MEP may be A master node completes the active/standby switchover.
  • the MEP may monitor whether the master node is normal in real time, timing, or triggered. If the MEP determines that the master node is abnormal, the MEP may use the MEP. Set as the primary node.
  • the preset condition is: the MEP determines that the master node is abnormal.
  • the MEP may monitor whether the connection path with the master node is normal in real time, timing, or triggered. If the MEP determines that the connection path is abnormal, then The MEP may set the MEP as a master node.
  • the preset condition is that the MEP determines that the connection path is abnormal.
  • the MEP may monitor the MEP in real time, timing, or triggered. If the MEP is abnormal, the MEP may go to the virtual home MEP.
  • One of the slave nodes sends information to set the slave node as the master node.
  • the preset condition is: the MEP determines that the MEP is abnormal.
  • the virtual home MEP can receive the switching instruction for implementing the active/standby switchover, and after receiving the switching instruction, the master node and a slave node in the virtual home MEP can complete the active/standby switchover.
  • the preset condition is that the MEP receives the switching instruction for implementing active/standby switching.
  • an embodiment of the present invention provides an apparatus for transmitting an OAM message, where the apparatus may be applied to one MEP in a virtual home MEP.
  • the device may be the MEP itself.
  • the apparatus can include a determination module 401 and an operation module 402.
  • the determining module 401 can be used to determine whether the MEP is a master node.
  • the operation module 402 may be configured to: after determining that the MEP is a master node, generate and send a first OAM message to the receiving end; where the virtual home MEP includes at least two MEPs, each The attribute parameters of the MEP are the same.
  • the device may further comprise a receiving module.
  • the receiving module may be configured to receive a second OAM message from the receiving end.
  • the operation module 402 is further configured to send the second OAM message to the primary node in the virtual home MEP after determining that the MEP is not the master node.
  • the device may further comprise a processing module.
  • the processing module may be configured to process the second OAM packet.
  • the device may further comprise a switching module.
  • the virtual home MEP has one and only one master node, and the switching module may be configured to perform an active/standby switchover with another MEP when the preset condition is met.
  • FIG. 4B is a structural diagram of the apparatus including the determining module 401 , the operating module 402 , the receiving module 403 , the processing module 404 , and the switching module 405 .
  • the device may include the receiving module 403, the processing module 404, and the switching module 405, or may include the receiving module 403, the processing module 404, and the switching module 405, in addition to the determining module 401 and the operating module 402.
  • the module or all modules can be different depending on the actual situation.
  • the embodiment of the present invention further provides an apparatus 500 for transmitting an OAM message.
  • the apparatus may be applied to one MEP in a virtual home MEP.
  • the device may be the MEP itself.
  • the apparatus 500 includes: a bus 540; and a processor 510, a memory 520, and an interface 530 connected to the bus 540, where the interface 530 is configured to send a first OAM message to the receiving end;
  • the processor 910 is configured to execute the instruction for determining whether the MEP is a master node; the processor 910 executing the instruction is further configured to generate the first OAM when determining that the MEP is a master node a message; the processor 910 executing the instruction is further configured to prohibit generating the first OAM report when determining that the MEP is not a master node Text.
  • the interface 530 is configured to receive the second OAM packet from the receiving end.
  • the interface 530 is configured to send the second OAM packet to the virtual home MEP when the processor 910 determines that the MEP is not the master node by executing the instruction.
  • the primary node in the embodiment of the present invention
  • the processor 910 is configured to perform the processing on the second OAM packet when the MEP is determined to be the master node.
  • the processor 910 executes the instruction, and the MEP and another MEP occur when a preset condition is met. Active/standby switchover.
  • the apparatus 500 for transmitting an OAM message in the embodiment of the present invention can ensure that the MEP is a master node, and the first OAM packet is prohibited from being generated when the MEP is not the master node.
  • the first OAM packet is sent to the receiving end only, and the two MEPs do not send two OAM packets to the receiving end as in the prior art.
  • the abnormal reporting alarm is not performed as in the prior art, and the normal operation of each network element is guaranteed.
  • An embodiment of the present invention provides a method for transmitting an OAM packet, where the method may include: determining, by the MEP in the virtual home MEP, whether the MEP is a master node; and when the MEP determines that the MEP is a master node, generating Sending a first OAM packet to the receiving end; the MEP prohibits generating the first OAM packet when determining that the MEP is not the master node; wherein the virtual home MEP includes at least two MEPs, and attributes of each MEP The parameters are the same.
  • the virtual home MEP includes at least two MEPs, and the same attribute parameter of each MEP is equivalent to virtualizing at least two MEPs into one MEP, and the virtual MEP is regarded as a MEP.
  • the virtual MEP only the master node generates and sends an OAM packet to the receiving end, and the slave node does not generate an OAM packet.
  • the OAM packet is not sent to the receiving end. Therefore, the virtual MEP sends only one first OAM packet to the receiving end, and the two MEPs do not need to be the same as in the prior art.
  • the receiving end sends two OAM packets, and the receiving end that receives only one OAM packet obviously does not report an abnormal alarm as in the prior art, and ensures normal operation of each network element.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit is implemented as a software functional unit and as a standalone product When sold or used, it can be stored on a computer readable storage medium.
  • a computer device which may be a personal computer, server, or network device, etc.
  • a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention concerne un procédé de transmission d'un paquet OAM utilisé pour appliquer un procédé d'implémentation d'un OAM de couche client destiné à une couche serveur dans un scénario à double anneau. Le procédé comprend une étape au cours de laquelle un nœud MEP dans un nœud d'origine d'un MEP virtuel détermine si le nœud MEP est un nœud maître. Si tel est le cas, le nœud MEP génère un premier paquet OAM et l'envoie à un destinataire. Si tel n'est pas le cas, le nœud MEP empêche la génération du premier paquet OAM. Le nœud d'origine du MEP virtuel comprend au moins deux nœuds MEP. Les paramètres des attributs des nœuds MEP sont les mêmes. La présente invention concerne également un appareil de transmission d'un paquet OAM.
PCT/CN2014/087062 2013-10-12 2014-09-22 Procédé et appareil de transmission d'un paquet oam WO2015051696A1 (fr)

Applications Claiming Priority (2)

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CN201310475699.2A CN103546316B (zh) 2013-10-12 2013-10-12 一种传输oam报文的方法及装置
CN201310475699.2 2013-10-12

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CN103546316B (zh) * 2013-10-12 2017-09-29 华为技术有限公司 一种传输oam报文的方法及装置
CN108494474A (zh) * 2018-03-23 2018-09-04 烽火通信科技股份有限公司 利用oam报文实现业务叠加保护倒换的方法及系统

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CN1848762A (zh) * 2004-09-16 2006-10-18 阿尔卡特公司 保护定义在vlan上的以太网连通性故障管理域的系统和方法
CN102045230A (zh) * 2010-12-07 2011-05-04 中兴通讯股份有限公司 一种以太环网链路保护倒换的方法及装置
CN103546316A (zh) * 2013-10-12 2014-01-29 华为技术有限公司 一种传输oam报文的方法及装置

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CN100388703C (zh) * 2003-11-27 2008-05-14 中兴通讯股份有限公司 一种以太网接口节点备份的方法及系统
CN103227736B (zh) * 2013-04-08 2016-03-09 华为技术有限公司 一种以太网性能检测方法、系统及光网络终端

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CN1848762A (zh) * 2004-09-16 2006-10-18 阿尔卡特公司 保护定义在vlan上的以太网连通性故障管理域的系统和方法
CN102045230A (zh) * 2010-12-07 2011-05-04 中兴通讯股份有限公司 一种以太环网链路保护倒换的方法及装置
CN103546316A (zh) * 2013-10-12 2014-01-29 华为技术有限公司 一种传输oam报文的方法及装置

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