WO2007028295A1 - A management method for binding link state - Google Patents

A management method for binding link state Download PDF

Info

Publication number
WO2007028295A1
WO2007028295A1 PCT/CN2006/001093 CN2006001093W WO2007028295A1 WO 2007028295 A1 WO2007028295 A1 WO 2007028295A1 CN 2006001093 W CN2006001093 W CN 2006001093W WO 2007028295 A1 WO2007028295 A1 WO 2007028295A1
Authority
WO
WIPO (PCT)
Prior art keywords
link
notification message
state
bundled
managing
Prior art date
Application number
PCT/CN2006/001093
Other languages
French (fr)
Chinese (zh)
Inventor
Kang Zi
Jun Liu
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007028295A1 publication Critical patent/WO2007028295A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC

Definitions

  • the present invention relates to the field of network communications, and in particular, to a method for managing a bundle link state. Background technique
  • PWE3 Pulseudo Wire Emulation Edge-to-Edge is a simulation of ATM (Asynchronous Transfer Mode), Frame Relay, Ethernet, Low Speed TDM (Time Division) in PSN (Packet Switched Network) Techniques for the basic characteristics of circuits and other services such as SONET/SDH (synchronous optical network/synchronous digital series).
  • PWE3 uses the PSN network to connect traditional network resources (ATM/FR/LAN, etc.) to provide simulation of traditional services on the PSN network. When traditional network services traverse the PSN network, the traditional network services are greatly simulated. End users do not feel the difference, PWE3 can protect the existing investment of users and operators in network integration and construction.
  • FIG. 1 A schematic diagram of the data flow forwarding process of the PWE3 service is shown in FIG. 1.
  • the CE (User Edge Equipment) 1 and the CE2 are interconnected through the PWE3, and the data flow forwarding process of the PWE3 service from the CE 1 to the CE2 is: Receives user data packets from CE1 through the access circuit AC (the physical circuit or virtual circuit that connects the CE to the PE) on PE1 (the service provider edge device). Then, PE1 sends the PW (connected to the virtual circuit of the PE) through the PW. Give PE2 to CE2. In the case of multiple hops, PE1 and PE2 may pass through multiple PEs. PE2 forwards the packets received from the PW to CE2 through the AC.
  • AC the physical circuit or virtual circuit that connects the CE to the PE
  • PE1 the service provider edge device
  • PE1 the service provider edge device
  • PE1 the service provider edge device
  • PE1 the service provider edge device
  • PE1 the service provider edge device
  • PE1 the service provider edge device
  • the link bundle is usually used on the AC, and the ACs at both ends are interconnected through PWE3.
  • the CE at this end can perceive it, but the CE at the other end cannot perceive it. Therefore, the CE at the other end will still use the bandwidth of the original bundled link to send data.
  • the data traffic is transmitted to the PE of the failed link, it will be discarded due to insufficient AC bandwidth, resulting in PSN bandwidth. Waste.
  • the present invention provides a method for managing a bundle link state, which can implement a PWE3 service.
  • the PEs that bundle the links at both ends notify the status information of the bundled link in time.
  • a method for managing a bundle link state comprising:
  • Edge-to-edge pseudo-line emulation The service provider edge device of the bundled link of the PWE3 service sends a link state notification message to notify the link state of the bundled link.
  • the method constructs a link state notification message on the PE of the bundle link of the PWE 3 service, and sends the link state notification message between the PEs.
  • the link state notification message includes: quantity information of a normal state link in the bundle link and available bandwidth information of the bundle link.
  • the access circuit AC sub-link state type length value TL V is set in the notification message of the label distribution LDP protocol of the PWE 3 service, and the notification message is used as the link state notification message.
  • the TLV includes the number of normal state links, bandwidth units, and bandwidth.
  • the number of normal state links, the bandwidth unit, and the bandwidth are set in the TLV, and the link state notification message is constructed according to the TLV.
  • the PE of the bundle link sends the link state notification message to the peer PE to notify the link fault information.
  • the peer PE discards the packet that exceeds the bandwidth according to the received message; or sends a congestion indication to the user edge device connected to it.
  • the present invention constructs and sends a link state notification message on the PE of the bundled link of the PWE3 service, so that the link at one end of the bundle link interconnected by PWE3 fails.
  • the PE that bundles the link at the other end can know the fault condition in time, and can perform traffic suppression in time to avoid waste of PSN bandwidth and reduce the number of traffic retransmissions between CEs.
  • FIG. 1 is a schematic diagram of a forwarding process of a data stream of a PWE3 service
  • FIG. 2 is a process flow diagram of a method for managing a bundle link state according to a preferred embodiment of the present invention. detailed description The present invention provides a management method for a bundle link state, and the core of the present invention is:
  • the related protocol between the PEs of the bundled link of the PWE3 service is extended.
  • the extended protocol is used to send a link state notification message between the PEs that are bound to the link at both ends to notify the status of the bundled link.
  • Step 2-1 Construct a link state notification message on the PE of the bundled link of the PWE3 service.
  • the method of the present invention constructs a link state notification message on the PE of the bundled link of the PWE3 service.
  • Constructing the above link state notification message may be based on a protocol running between PEs of the bundled link of the PWE3 service.
  • an AC sub-link TLV (state type length value) may be set in the notification message of the LDP protocol, where the TLV includes the number of normal state links. , bandwidth unit and bandwidth, and the notification message is used as a link status notification message.
  • the present invention can also set the number of normal state links, the bandwidth unit and the bandwidth in the PW state: PW state TLV between the PEs of the bundled link of the PWE3 service, and then, according to the TLV The link state notification message is constructed.
  • PW Status The format of the TLV can be expressed as follows:
  • Step 2-2 The link state notification message is sent between the PEs of the bundled link of the PWE3 service, and the link state of the bundled link is advertised.
  • the PEs that bundle the link between the two ends can send link state notification messages to each other to advertise the status of the link in the bundled link.
  • the status of the bundled link is notified to the peer PE in time. For example, in FIG. 1, when one or more links in the binding link on the AC between PE1 and CE1 fail, PE1 sends the link state notification message to PE2, and the notification message includes The number of normal links, available bandwidth information, etc. in the bundle link on the AC between PE1 and CE1.
  • Step 2-3 The PE of the bundled link performs corresponding processing according to the received message.
  • the PE of the bundled link at the other end of the PWE3 service After receiving the message about the advertised link status sent by the peer PE, the PE of the bundled link at the other end of the PWE3 service knows the status information of the bundled link of the peer end and can perform corresponding processing. For example, in Figure 1, when one or more links in the bundle link on the AC between PE1 and CE1 fails, PE2 knows PE1 and CE1 after receiving the link state notification message sent by PE1. The link state and bandwidth conditions in the bundled link between the ACs can be processed accordingly. For example, discard packets that exceed the bandwidth, or send congestion indications to CE2. Therefore, the waste of PSN bandwidth can be avoided, and the number of traffic retransmissions between CE1 and CE2 can be reduced.

Abstract

A management method for binding link state includes: send the link state notification message between PE(Service Provider Edge Device) of the binding link of PWE3(Pseudo Wire Emulation Edge-Edge) service, notify the link state of the binding link. Using the method of present invention, which can realize to notify the state information of the binding link between PE of two-end binding link of PWE3 service in time, avoid the waste of PSN bandwidth, decrease the amount of flow retransmission inter-CE.

Description

捆绑链路状态的管理方法  Bundle link state management method
技术领域 本发明涉及网络通信领域， 尤其涉及一种捆绑链路状态的管理方法。 背景技术 The present invention relates to the field of network communications, and in particular, to a method for managing a bundle link state. Background technique
PWE3 ( Pseudo Wire Emulation Edge-to-Edge, 边缘到边缘的伪线仿 真）是一种在 PSN (分组交换网络） 中仿真 ATM (异步传输模式） 、 帧 中继、 以太网、 低速 TDM (时分复用技术） 电路和 SONET/SDH (同步光 紆网 /同步数字系列）等业务的基本特征的技术。 PWE3利用 PSN网络将传 统的网络资源（ATM/FR/LAN等）连通起来， 在 PSN网络上提供传统业务 的仿真，在传统网络业务穿越 PSN网络时，极大限度地仿真该传统网络业 务， 使终端用户感受不到差异性， PWE3可以在网络整合和建设中保护用 户和运营商的既有投资。  PWE3 (Pseudo Wire Emulation Edge-to-Edge) is a simulation of ATM (Asynchronous Transfer Mode), Frame Relay, Ethernet, Low Speed TDM (Time Division) in PSN (Packet Switched Network) Techniques for the basic characteristics of circuits and other services such as SONET/SDH (synchronous optical network/synchronous digital series). PWE3 uses the PSN network to connect traditional network resources (ATM/FR/LAN, etc.) to provide simulation of traditional services on the PSN network. When traditional network services traverse the PSN network, the traditional network services are greatly simulated. End users do not feel the difference, PWE3 can protect the existing investment of users and operators in network integration and construction.
PWE3业务的数据流的转发过程示意图如图 1所示， 在图 1中， CE (用 户边缘设备 ) 1和 CE2通过 PWE3互连， 从 CE 1到 CE2的 PWE3业务的数据 流的转发过程是： 在 PE1 (服务提供商边缘设备）上通过接入电路 AC (将 CE接入到 PE的物理电路或虚电路）从 CE1接收用户数据报文， 然后， PE1 通过 PW (连接 PE的虚电路）发给 CE2端的 PE2。 在多跳的情况下， PE1 和 PE2中间有可能经过多个 PE, PE2再将从 PW收到的报文通过 AC转发给 CE2。  A schematic diagram of the data flow forwarding process of the PWE3 service is shown in FIG. 1. In FIG. 1, the CE (User Edge Equipment) 1 and the CE2 are interconnected through the PWE3, and the data flow forwarding process of the PWE3 service from the CE 1 to the CE2 is: Receives user data packets from CE1 through the access circuit AC (the physical circuit or virtual circuit that connects the CE to the PE) on PE1 (the service provider edge device). Then, PE1 sends the PW (connected to the virtual circuit of the PE) through the PW. Give PE2 to CE2. In the case of multiple hops, PE1 and PE2 may pass through multiple PEs. PE2 forwards the packets received from the PW to CE2 through the AC.
在上述数据流的转发过程中， 为保证设备之间的互连质量， 通常在 AC上采用链路捆绑， 并通过 PWE3将两端的 AC互连后， 一端 AC的捆 绑链路中的某个链路出现故障后， 这一端的 CE能够感知到，但另一端的 CE却不能感知到。 因此， 另一端的 CE就会仍然用原来捆绑链路的带宽 来发送数据， 这些数据流量要被传到出现故障的链路的 PE上后， 才会因 为 AC带宽不足被丢弃， 造成了 PSN带宽的浪费。  In the forwarding process of the above-mentioned data flows, in order to ensure the quality of the interconnection between the devices, the link bundle is usually used on the AC, and the ACs at both ends are interconnected through PWE3. After the road fails, the CE at this end can perceive it, but the CE at the other end cannot perceive it. Therefore, the CE at the other end will still use the bandwidth of the original bundled link to send data. After the data traffic is transmitted to the PE of the failed link, it will be discarded due to insufficient AC bandwidth, resulting in PSN bandwidth. Waste.
发明内容 本发明提供了一种捆绑链路状态的管理方法， 能够实现在 PWE3业务 的两端捆绑链路的 PE之间及时通告捆绑链路的状态信息。 SUMMARY OF THE INVENTION The present invention provides a method for managing a bundle link state, which can implement a PWE3 service. The PEs that bundle the links at both ends notify the status information of the bundled link in time.
本发明的目的是通过以下技术方案实现的：  The object of the invention is achieved by the following technical solutions:
一种捆绑链路状态的管理方法， 其特征在于， 包括：  A method for managing a bundle link state, comprising:
在边缘到边缘的伪线仿真 PWE3业务的捆绑链路的服务提供商边缘设 备 PE之间发送链路状态通知消息， 通告捆绑链路的链路状态。  Edge-to-edge pseudo-line emulation The service provider edge device of the bundled link of the PWE3 service sends a link state notification message to notify the link state of the bundled link.
所述方法在 PWE 3业务的捆绑链路的 PE上构造链路状态通知消息， 在 所述 PE之间发送所述链路状态通知消息。  The method constructs a link state notification message on the PE of the bundle link of the PWE 3 service, and sends the link state notification message between the PEs.
所述链路状态通知消息包括： 捆绑链路中的正常状态链路的数量信 息和捆绑链路的可用带宽信息。  The link state notification message includes: quantity information of a normal state link in the bundle link and available bandwidth information of the bundle link.
在实现 PWE 3业务的标记分发 LDP协议的通知消息中设置接入电路 AC 子链路状态类型长度值 TL V , 并将所述通知消息作为链路状态通知消息。  The access circuit AC sub-link state type length value TL V is set in the notification message of the label distribution LDP protocol of the PWE 3 service, and the notification message is used as the link state notification message.
所述 TLV中包括正常状态链路的数量、 带宽单位和带宽。  The TLV includes the number of normal state links, bandwidth units, and bandwidth.
在 PWE3业务的捆绑链路的 PE之间的虛电路 PW的 PW状态 TLV中设置正 常状态链路的数量、 带宽单位和带宽， 根据所述 TLV构造所述链路状态通 知消息。  In the PW state of the virtual circuit PW of the bundled link of the PWE3 service, the number of normal state links, the bandwidth unit, and the bandwidth are set in the TLV, and the link state notification message is constructed according to the TLV.
当 PWE 3业务的一端捆绑链路中出现链路故障时， 所述捆绑链路的 PE 向对端 PE发送所述链路状态通知消息， 通告该链路故障信息。  When a link fault occurs in the bundle link of the PWE 3 service, the PE of the bundle link sends the link state notification message to the peer PE to notify the link fault information.
对端 PE根据接收到的消息， 丢弃超出带宽的报文； 或 向与其相连的用户边缘设备发送拥塞指示。  The peer PE discards the packet that exceeds the bandwidth according to the received message; or sends a congestion indication to the user edge device connected to it.
由上述本发明提供的技术方案可以看出， 本发明通过在 PWE3业务 的捆绑链路的 PE上构造并发送链路状态通知消息，实现在通过 PWE3互 连的捆绑链路的一端链路出现故障时， 另一端捆绑链路的 PE能够及时获 知该故障情况， 能够及时进行流量抑制的处理， 避免 PSN带宽的浪费， 降低 CE之间流量重传的数量。  It can be seen from the technical solution provided by the present invention that the present invention constructs and sends a link state notification message on the PE of the bundled link of the PWE3 service, so that the link at one end of the bundle link interconnected by PWE3 fails. The PE that bundles the link at the other end can know the fault condition in time, and can perform traffic suppression in time to avoid waste of PSN bandwidth and reduce the number of traffic retransmissions between CEs.
附图说明 图 1为 PWE3业务的数据流的转发过程示意图； BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a forwarding process of a data stream of a PWE3 service;
图 2为本发明的优选实施例的捆绑链路状态管理方法的处理流程图。 具体实施方式 本发明提供了一种捆绑链路状态的管理方法， 本发明的核心为： 对2 is a process flow diagram of a method for managing a bundle link state according to a preferred embodiment of the present invention. detailed description The present invention provides a management method for a bundle link state, and the core of the present invention is:
PWE3业务的捆绑链路的 PE之间的相关协议进行扩展， 利用扩展后的协 议， 在两端梱绑链路的 PE之间发送链路状态通知消息， 通告捆绑链路的 状态。 下面结合附图来详细描述本发明。 图 2为本发明的捆绑链路状态管 理方法的处理流程图。 如图 2所示， 包括如下步骤： The related protocol between the PEs of the bundled link of the PWE3 service is extended. The extended protocol is used to send a link state notification message between the PEs that are bound to the link at both ends to notify the status of the bundled link. The invention will be described in detail below with reference to the accompanying drawings. 2 is a flowchart of processing of a bundle link state management method according to the present invention. As shown in Figure 2, the following steps are included:
步骤 2-1: 在 PWE3业务的捆绑链路的 PE上构造链路状态通知消息。 当在 F E3业务的 AC上采用了捆绑链路后， 本发明的方法在 PWE3业 务的捆绑链路的 PE上构造链路状态通知消息。  Step 2-1: Construct a link state notification message on the PE of the bundled link of the PWE3 service. When a bundled link is employed on the AC of the F E3 service, the method of the present invention constructs a link state notification message on the PE of the bundled link of the PWE3 service.
构造上述链路状态通知消息可以基于 PWE3业务的捆绑链路的 PE之 间运行的协议。  Constructing the above link state notification message may be based on a protocol running between PEs of the bundled link of the PWE3 service.
例如， 当实现 PWE3业务的协议为 LDP (标记分发）协议时， 可以在 该 LDP协议的通知消息中设置一个 AC子链路 TLV (状态类型长度值） ， 该 TLV中包括正常状态链路的数量、带宽单位和带宽，并将该通知消息作 为链路状态通知消息。  For example, when the protocol for implementing the PWE3 service is the LDP (Mark Distribution) protocol, an AC sub-link TLV (state type length value) may be set in the notification message of the LDP protocol, where the TLV includes the number of normal state links. , bandwidth unit and bandwidth, and the notification message is used as a link status notification message.
上述 AC子链路 TLV的通知消息的格式如下：  The format of the notification message of the above AC sub-link TLV is as follows:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 通知消息（0x0001) 消息长度 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 Notification message (0x0001) Message length
消息 ID  Message ID
状态 TLV (其中的状态编码为子链路状态)  Status TLV (where the status code is the sub-link status)
AC子链路状态 TLV  AC sublink status TLV
PWId FEC或者通用 Generalized ID FEC 其中， AC子链路状态 TLV字段可以表示为如下形式:  PWId FEC or Generalized Generalized FEC where the AC sub-link status TLV field can be expressed as follows:
AC子链路状态 TLV: {  AC sublink status TLV: {
AC子链路状态  AC sublink status
长度  Length
正常状态链路的数量  Number of links in normal state
带宽单位  Bandwidth unit
带宽 } bandwidth }
为构造上述链路状态通知消息，本发明还可以在 PWE3业务的捆绑链 路的 PE之间的 PW的： PW状态 TLV中设置正常状态链路的数量、 带宽单位 和带宽， 然后， 根据该 TLV来构造所述链路状态通知消息。 PW状态 TLV 的格式可以表示为如下形式：  In order to construct the foregoing link state notification message, the present invention can also set the number of normal state links, the bandwidth unit and the bandwidth in the PW state: PW state TLV between the PEs of the bundled link of the PWE3 service, and then, according to the TLV The link state notification message is constructed. PW Status The format of the TLV can be expressed as follows:
虚电路 PW状态 TLV: {  Virtual circuit PW state TLV: {
PW状态  PW status
长度  Length
状态编码  Status code
正常状态链路的数量  Number of links in normal state
带宽单位  Bandwidth unit
带宽  Bandwidth
}  }
步骤 2-2: 在 PWE3业务的捆绑链路的 PE之间发送所述链路状态通知 消息， 通告捆绑链路的链路状态。  Step 2-2: The link state notification message is sent between the PEs of the bundled link of the PWE3 service, and the link state of the bundled link is advertised.
在 PWE3业务的捆绑链路的 PE上构造了链路状态通知消息后，两端捆 绑链路的 PE便可以互相之间发送链路状态通知消息， 通告其捆绑链路中 的链路的状态， 实现将捆绑链路的状态及时通知给对端 PE。 例如， 在图 1 中 , 当 PE1和 CE1之间的 AC上的梱绑链路中的一条或多条链路发生故障 时， PE1便向 PE2发送上述链路状态通知消息， 该通知消息中包括 PE1和 CE1之间的 AC上的捆绑链路中的正常链路的数量、 可用带宽的信息等。  After the link state notification message is configured on the PE of the bundled link of the PWE3 service, the PEs that bundle the link between the two ends can send link state notification messages to each other to advertise the status of the link in the bundled link. The status of the bundled link is notified to the peer PE in time. For example, in FIG. 1, when one or more links in the binding link on the AC between PE1 and CE1 fail, PE1 sends the link state notification message to PE2, and the notification message includes The number of normal links, available bandwidth information, etc. in the bundle link on the AC between PE1 and CE1.
步骤 2-3: 捆绑链路的 PE根据接收到的消息， 进行相应的处理。  Step 2-3: The PE of the bundled link performs corresponding processing according to the received message.
另一端 PWE3业务的捆绑链路的 PE接收到对端 PE发来的通告链路状 态的相关消息后， 便知道对端捆绑链路的状态信息， 可以进行相应的处 理。 例如， 在图 1中， 当 PE1和 CE1之间的 AC上的捆绑链路中的一条或多 条链路发生故障时， PE2收到 PE1发送的链路状态通知消息后，便知道 PE1 和 CE1之间的 AC上的捆绑链路中的链路状态和带宽情况， 于是可以进行 相应的处理。 如： 丢弃超出带宽的报文， 或向 CE2发送拥塞指示等。 从而 可以避免 PSN带宽的浪费， 降低 CE1和 CE2之间的流量重传的数量。 以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围 并不局限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范 围内， 可轻易想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应该以权利要求的保护范围为准。 After receiving the message about the advertised link status sent by the peer PE, the PE of the bundled link at the other end of the PWE3 service knows the status information of the bundled link of the peer end and can perform corresponding processing. For example, in Figure 1, when one or more links in the bundle link on the AC between PE1 and CE1 fails, PE2 knows PE1 and CE1 after receiving the link state notification message sent by PE1. The link state and bandwidth conditions in the bundled link between the ACs can be processed accordingly. For example, discard packets that exceed the bandwidth, or send congestion indications to CE2. Therefore, the waste of PSN bandwidth can be avoided, and the number of traffic retransmissions between CE1 and CE2 can be reduced. The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

权 利 要 求 Rights request
1、 一种捆绑链路状态的管理方法， 其特征在于， 包括：  A method for managing a bundle link state, which is characterized by comprising:
在边缘到边缘的伪线仿真 PWE3业务的捆绑链路的服务提供商边缘设 备 PE之间发送链路状态通知消息， 通告捆绑链路的链路状态。  Edge-to-edge pseudo-line emulation The service provider edge device of the bundled link of the PWE3 service sends a link state notification message to notify the link state of the bundled link.
2、 根据权利要求 1所述捆绑链路状态的管理方法， 其特征在于： 所 述方法在 PWE 3业务的捆绑链路的 PE上构造链路状态通知消息， 在所述 PE 之间发送所述链路状态通知消息。  The method for managing the state of the bundled link according to claim 1, wherein: the method constructs a link state notification message on the PE of the bundled link of the PWE 3 service, and sends the message between the PEs. Link status notification message.
3、 根据权利要求 2所述捆绑链路状态的管理方法， 其特征在于， 所 述链路状态通知消息包括： 捆绑链路中的正常状态链路的数量信息和捆 绑链路的可用带宽信息。  The method for managing a bundle link state according to claim 2, wherein the link state notification message includes: quantity information of a normal state link in the bundle link and available bandwidth information of the bundle link.
4、 根据权利要求 2所述捆绑链路状态的管理方法， 其特征在于： 在实现 PWE 3业务的标记分发 LDP协议的通知消息中设置接入电路 AC 子链路状态类型长度值 TLV , 并将所述通知消息作为链路状态通知消息。  The method for managing the state of the bundled link according to claim 2, wherein: the access circuit AC sub-link state type length value TLV is set in the notification message of the label distribution LDP protocol of the PWE 3 service, and The notification message is used as a link state notification message.
5、 根据权利要求 4所述捆绑链路状态的管理方法， 其特征在于： 所 述 TLV中包括正常状态链路的数量、 带宽单位和带宽。  The method for managing bundled link states according to claim 4, wherein: the TLV includes the number of normal state links, a bandwidth unit, and a bandwidth.
6、 根据权利要求 2所述捆绑链路状态的管理方法， 其特征在于： 常状态链路的数量、 带宽单位和带宽， 根据所述 TLV构造所述链路状态通 知消息。  The method for managing bundled link states according to claim 2, wherein: the number of the persistent state links, the bandwidth unit, and the bandwidth, and the link state notification message is constructed according to the TLV.
7、 根据权利要求 2、 3、 4或 6所述捆绑链路状态的管理方法， 其特征 在于：  7. A method of managing bundled link states according to claim 2, 3, 4 or 6, characterized in that:
当 PWE3业务的一端捆绑链路中出现链路故障时， 所述捆绑链路的 PE 向对端 PE发送所述链路状态通知消息 , 通告该链路故障信息。  When a link fault occurs in the bundled link of the PWE3 service, the PE of the bundled link sends the link state notification message to the peer PE to notify the link fault information.
8、 根据权利要求 7所述捆绑链路状态的管理方法， 其特征在于： 对端 PE根据接收到的消息， 丢弃超出带宽的报文； 或  The method for managing a bundle link state according to claim 7, wherein: the peer PE discards the packet exceeding the bandwidth according to the received message; or
向与其相连的用户边缘设备发送拥塞指示。  A congestion indication is sent to the user edge device connected to it.
PCT/CN2006/001093 2005-09-06 2006-05-25 A management method for binding link state WO2007028295A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2005100985998A CN100464519C (en) 2005-09-06 2005-09-06 Management method for binding chain circuit state
CN200510098599.8 2005-09-06

Publications (1)

Publication Number Publication Date
WO2007028295A1 true WO2007028295A1 (en) 2007-03-15

Family

ID=37835358

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001093 WO2007028295A1 (en) 2005-09-06 2006-05-25 A management method for binding link state

Country Status (2)

Country Link
CN (1) CN100464519C (en)
WO (1) WO2007028295A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100471162C (en) 2007-04-28 2009-03-18 杭州华三通信技术有限公司 Method for releasing and processing virtual circuit information and supplier edge device
CN101094114A (en) * 2007-06-15 2007-12-26 华为技术有限公司 Method and device for processing bound link
CN101227397B (en) * 2008-01-28 2012-06-27 华为技术有限公司 System, equipment and method for protecting link circuit
CN101505274B (en) * 2009-03-02 2011-07-06 华为技术有限公司 Method, system and apparatus for pseudowire status notification
CN102045239B (en) * 2009-10-13 2012-12-19 中兴通讯股份有限公司 Implementation method and device of point-to-multipoint pseudowire protective network
CN102045232A (en) * 2009-10-19 2011-05-04 中兴通讯股份有限公司 System and method for acquiring link information in bilayer VPN (Virtual Private Network)
CN102238138A (en) * 2010-04-23 2011-11-09 中兴通讯股份有限公司 Pseudo wire service processing method and system
CN103024826B (en) * 2012-12-10 2016-08-03 华为技术有限公司 The method of Bandwidth adjustment, equipment and system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536823A (en) * 2003-04-08 2004-10-13 乐金电子（中国）研究开发中心有限公 Ethernet link state management device and its method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100426812C (en) * 2002-08-15 2008-10-15 中兴通讯股份有限公司 Simulationi realizing method based on grouping data business process and system
US7596629B2 (en) * 2002-11-21 2009-09-29 Cisco Technology, Inc. System and method for interconnecting heterogeneous layer 2 VPN applications
US7558194B2 (en) * 2003-04-28 2009-07-07 Alcatel-Lucent Usa Inc. Virtual private network fault tolerance
CN1625176B (en) * 2003-12-03 2010-04-28 华为技术有限公司 Realization method of edge to edge pseudo-line simulation protocol

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1536823A (en) * 2003-04-08 2004-10-13 乐金电子（中国）研究开发中心有限公 Ethernet link state management device and its method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HE B.: "Multi-service Imitated Technology over IP Network", TELECOMMUNICATION ENGINEERING TECHNOLOGY AND STANDARDIZATION, May 2005 (2005-05-01), pages 24 - 26 *
LI C.: "Pseudo Wire Emulation Edge-to-Edge (PWE3): 1. Framework", CHINA DATA COMMUNICATIONS, no. 5, May 2003 (2003-05-01), pages 90 - 95, XP008077544 *

Also Published As

Publication number Publication date
CN1929392A (en) 2007-03-14
CN100464519C (en) 2009-02-25

Similar Documents

Publication Publication Date Title
CN105706393B (en) The method and system of operator's order is supported in link aggregation group
EP1585261B1 (en) Apparatus and method for processing labeled flows in a communications access network
US7127523B2 (en) Spanning tree protocol traffic in a transparent LAN
WO2007028295A1 (en) A management method for binding link state
JP4547453B2 (en) PROTECTION PROVIDING METHOD AND USER COMMUNICATION DEVICE
WO2009056053A1 (en) A method, device and system of multi-protocol label exchange traffic engineering flow capacity switch
CN100459531C (en) Method for notifying pseudo-lines fault based on bidirectional transmission detecting protocol
WO2005055548A1 (en) A method for realizing the pseudo wire emulation edge-to-edge protocol
EP1766876B1 (en) Technique for transferring data over a packet switched network
WO2008119300A1 (en) A protecting method and device for ethernet tree service
WO2009012688A1 (en) Method, system and apparatus for forwarding message in three-layer virtual private network
WO2015000173A1 (en) Tunnel establishment method, label allocation method, device, and network system
WO2007036106A1 (en) A method for protection switching of the pseudo wire in the packet switch network and the device thereof
WO2008077300A1 (en) A method and system for negotiating the bidirectional forwarding detection session discriminator of pesudo wire
CN101155076B (en) Method for checking pseudo wire trouble of two-layer special network
WO2012075831A1 (en) Method and system for multicast protection
WO2007143952A1 (en) A method for accessing virtual private network, virtual private system, virtual private network and provider edge device
US9143406B2 (en) Apparatus, method and computer-readable storage medium for calculating throughput requirements of a network
WO2007071153A1 (en) A method, a data network system and a network node for transmitting data packets
CN102238057A (en) Ethernet-tree realization method, system, device and network equipment
WO2008017223A1 (en) Method, apparatus and network for intercommunicating failure detecting results
CN101160862A (en) Method and system for realizing the consistency of the virtual circuit status
WO2011047583A1 (en) Method and system for acquiring link information in layer 2 virtual private networks
WO2008028383A1 (en) Method for identifying the layer 3 protocol in l2vpn heterogeneous medium interconnection and the apparatus and system thereof
WO2011143968A1 (en) Method and system for notifying congestion control information

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06741981

Country of ref document: EP

Kind code of ref document: A1