WO2012163039A1

WO2012163039A1 - Communication protection method and device

Info

Publication number: WO2012163039A1
Application number: PCT/CN2011/081739
Authority: WO
Inventors: 刘雅宁
Original assignee: 华为技术有限公司
Priority date: 2011-11-03
Filing date: 2011-11-03
Publication date: 2012-12-06
Also published as: CN102598587A

Abstract

A communication protection method, device and system. The method comprises: a standby terminal node receiving, through a radio port, an uplink radio message sent by an active terminal node, the uplink radio message comprising uplink data sent by the active terminal node to a central office node, the uplink data comprising an exchanged data identification of the active terminal node, and the uplink radio message further comprising a radio communication address of the active terminal node; and the standby terminal node sending, through a wired port, an uplink message to the central office node, the uplink message comprising an identification of the standby terminal node and the uplink data sent by the active terminal node to the central office node. Through the embodiment of the present invention, when the active terminal node has no available line link, the active terminal node and the standby terminal node protect services by using a radio link together with a line link.

Description

通信保护的方法和装置 Method and device for communication protection

技术领域 Technical field

本发明涉及数据通讯领域，具体地说，涉及通信保护的方法和装置。背景技术 The present invention relates to the field of data communications, and more particularly to a method and apparatus for communication protection. Background technique

现有技术的光线路终端（OLT , Opt ica l Line Termina l )和光网络单元 ( ONU, Opt ica l Network Uni t )之间的链路保护方案是在 OLT和 ONU间维护一条备用链路，当主用链路的故障后，将业务切换到备用链路，如图 1所示， 0LT的无源光网络 ( PON, Pas s ive Opt i ca l Network )端口 0和端口 1互为主备， 0NU的 PON0和 P0N1互为主备，从 0NU到 0LT之间有两条链路，网络上始终维护一条备用链路，当主用链路发生故障的时候， 0LT和 0NU共同将业务切换到备用链路上，保障用户业务。采用该方案， 0LT的 P0N口、 0LT和 0NU间的光链路必须实现冗余备份，当 0NU设备没有可用的备份 P0N链路时无法实现业务保护。对于其他的网络，如同轴电缆以太网（EOC, Ethernet over Coax ) 网络也存在类似的问题。当主用终端节点没有可用的有线链路时，无法实现对业务的保护。 The link protection scheme between the optical line terminal (OLT, Opt ica l Line Termina l) and the optical network unit (ONU, Opt ica l Network Uni t) is to maintain a backup link between the OLT and the ONU. After the link is faulty, the service is switched to the standby link. As shown in Figure 1, the 0LT passive optical network (PON, Pas ive Opt i ca l Network) port 0 and port 1 are active and standby, 0NU PON0 and P0N1 are active and standby, and there are two links from 0NU to 0LT. The network always maintains a standby link. When the primary link fails, 0LT and 0NU jointly switch services to the standby link. On, to protect user business. With this scheme, the optical link between the P0N port, 0LT, and 0NU of the 0LT must be redundantly backed up. When the 0NU device does not have a backup P0N link available, service protection cannot be implemented. Similar problems exist for other networks, such as the Ethernet over Coax (EOC) network. When the active end node does not have a wired link available, the protection of the service cannot be achieved.

发明内容 Summary of the invention

本发明的实施例要解决的问题是当主用终端节点没有可用的有线链路时无法实现业务保护的问题。 A problem to be solved by embodiments of the present invention is that the problem of service protection cannot be achieved when the primary terminal node has no available wired links.

一方面，本发明提供了一种通信保护的方法，包括： In one aspect, the present invention provides a method of communication protection, including:

备用终端节点从无线端口接收上行无线报文，所述上行无线报文包含上行数据，所述上行数据包含主用终端节点的交换数据标识，所述上行无线报文包含所述主用终端节点的无线通信地址； The standby terminal node receives the uplink radio packet from the radio port, where the uplink radio packet includes uplink data, the uplink data includes an exchange data identifier of the active terminal node, and the uplink radio packet includes the primary terminal node. Wireless communication address;

从有线端口向局端节点发送上行报文，所述上行报文包含所述备用终端节点的标识和所述上行数据。 The uplink packet is sent from the wired port to the central office node, where the uplink packet includes the identifier of the standby terminal node and the uplink data.

另一方面，本发明提供了一种通信保护的装置，包括： In another aspect, the present invention provides a communication protection apparatus, including:

无线端口处理单元，用于接收上行无线报文，所述上行无线报文包含上行数据，所述上行数据包含主用终端节点的交换数据标识，所述上行无线报文包含所述主用终端节点的无线通信地址； a radio port processing unit, configured to receive an uplink radio packet, where the uplink radio packet includes uplink data, where the uplink data includes an exchange data identifier of the active terminal node, and the uplink radio packet The text includes a wireless communication address of the primary terminal node;

有线端口处理单元，用于向局端节点发送上行报文，所述上行报文包含所述备用终端节点的标识和所述上行数据。 The wired port processing unit is configured to send an uplink packet to the central office node, where the uplink packet includes an identifier of the standby terminal node and the uplink data.

另一方面，本发明提供了一种通信保护的***，包括： In another aspect, the present invention provides a communication protection system, including:

备用终端节点、主用终端节点、局端节点； Alternate terminal node, primary terminal node, central office node;

所述主用终端节点向所述备用终端节点发送上行无线报文，所述上行无线报文包含上行数据，所述上行数据包含所述主用终端节点的交换数据标识，所述上行无线报文包含所述主用终端节点的无线通信地址； The active terminal node sends an uplink radio packet to the standby terminal node, where the uplink radio packet includes uplink data, and the uplink data includes an exchange data identifier of the active terminal node, and the uplink radio packet Including a wireless communication address of the primary terminal node;

所述备用终端节点从无线端口接收所述上行无线报文； The standby terminal node receives the uplink wireless packet from a wireless port;

所述备用终端节点从有线端口向所述局端节点发送上行报文，所述上行报文包含所述备用终端节点的标识和所述上行数据。 The standby terminal node sends an uplink packet from the wired port to the central office node, where the uplink packet includes an identifier of the standby terminal node and the uplink data.

通过本发明的实施例可以在主用终端节点没有可用的有线链路时，和备用终端节点通过无线链路加有线链路的方式对业务进行保护。 By the embodiment of the present invention, when the active terminal node has no available wired link, the standby terminal node protects the service by adding a wired link through the wireless link.

附图说明 DRAWINGS

为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的附图作一筒单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings may be obtained based on these drawings without any creative work.

图 1为 P0N保护***示意图； Figure 1 is a schematic diagram of a P0N protection system;

图 2为本发明实施例的网络结构示意图； 2 is a schematic structural diagram of a network according to an embodiment of the present invention;

图 3为本发明实施例提供的通信保护的方法的流程示意图； 3 is a schematic flowchart of a method for communication protection according to an embodiment of the present invention;

图 3a为本发明实施例提供的通信保护的方法的流程示意图； 3a is a schematic flowchart of a method for communication protection according to an embodiment of the present invention;

图 4为本发明实施例提供的通信保护协议报文格式示意图； 4 is a schematic diagram of a format of a communication protection protocol packet according to an embodiment of the present invention;

图 5为本发明实施例提供的通信保护的装置的示意图； FIG. 5 is a schematic diagram of a device for communication protection according to an embodiment of the present invention; FIG.

图 6为本发明实施例提供的通信保护的***的示意图。 FIG. 6 is a schematic diagram of a system for communication protection according to an embodiment of the present invention.

具体实施方式 detailed description

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。 The technical solution in the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. It is clear that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

本发明的实施例提供了一种通信保护的方法，以下结合图 1对该方法进行说明。图 2中， 0NU为终端节点， 0LT为局端节点，以 ONU0作为主用终端节点， ONUn作为备用终端节点为例， ONU0和 ONUn和同一个 0LT进行通信。 ONU0 的无线端口可以通过各种无线网络和 ONUn之间的无线端口进行无线通信，例如 WiFi( Wireless Fidelity )网络、微波存取全球互通（ WiMAX, Worldwide Interoperability for Microwave Access ) 网络、 3G ( 3^rd Generation) 网络、 4G(4^th Generation)网络等。 ONUO和 ONUn可以通过无线接入点接入无线网络以进行通信，也可以直接进行点对点的无线通信。本发明的实施例以 WiFi 端口为例进行说明，本领域技术人员可以据此得到使用其他类型的无线端口进行通信的情况。 0NU 和 0LT 之间可以有光配线网络（0匪， Optical Distribution Network ), 也可以没有 0DN。 Embodiments of the present invention provide a method of communication protection, which is described below in conjunction with FIG. In FIG. 2, 0NU is a terminal node, 0LT is a central office node, ONU0 is used as an active terminal node, ONUn is used as a backup terminal node, and ONU0 and ONUn communicate with the same 0LT. The wireless port of ONU0 can communicate wirelessly through wireless ports between various wireless networks and ONUn, such as WiFi (Wireless Fidelity) network, Worldwide Interoperability for Microwave Access (WiMAX) network, 3G (3 ^rd Generation) Network, 4G (4 ^th Generation) network, etc. ONUO and ONUn can access the wireless network through a wireless access point for communication, or can directly perform point-to-point wireless communication. The embodiment of the present invention is described by taking a WiFi port as an example, and those skilled in the art can obtain a case of using other types of wireless ports for communication. There can be an optical distribution network (0匪, Optical Distribution Network) between 0NU and 0LT, or 0DN.

ONUO收到用户数据后，可以将用户数据封装为交换报文，交换报文可以是以太网报文的形式，也可以是其他类型报文的形式，如异步传输模式（ATM, Asynchronous Transfer Mode )报文等。完成封装后，报文将携带 ONU0设备的交换标识上行，交换标识可以由 ONU0设备的业务类型决定。对于以太网报文，报文可以携带 ONU0设备的上行使用的虚拟局域网（ VLAN, Virtual Local Area Network)标识，对于 ATM报文，报文可以携带 ONUO设备的虚路径标识符（VPI, Virtual Path Identifier) 和虚通道标识符（VCI, Virtual Channel Identifier) ₀ 当然， ONUO收到的用户数据本身就可以是以太网 4艮文、或 ATM 报文、或其他类型的交换报文。例如，假设 ONU0设备支持用户端口带 VLAN 101 的业务接入，使用的上行业务 VLAN的 VLAN ID为 100; 当 ONU0的用户端口 0 有业务数据上行时， ONU0会将业务数据的 VLAN标识 101切换为自身的 VLAN 标识 100, 从 ONU0的上行口送往上层设备。 ONUn使用 VLAN ID为 200的 VLAN 上行，支持用户端口带 VLAN ID为 201的业务接入。当然， ONU0和 ONUn使用的上行 VLAN和下行 VLAN可以有一个或多个。本发明的实施例以以太网 4艮文为例，本领域的技术人员可以根据描述，获知交换报文为 ATM报文，或其他类型报文的处理情形。 After receiving the user data, the ONUO can encapsulate the user data into an exchange message. The exchange message can be in the form of an Ethernet packet or other types of packets, such as an Asynchronous Transfer Mode (ATM). Messages, etc. After the encapsulation is complete, the packet carries the switch ID of the ONU0 device. The switch ID can be determined by the service type of the ONU0 device. For an Ethernet packet, the packet can carry the virtual local area network (VLAN) of the ONU0 device. For ATM packets, the packet can carry the virtual path identifier of the ONUO device (VPI, Virtual Path Identifier). ) and virtual channel identifier (VCI, virtual channel identifier) ₀ of course, the user data received ONUO itself Gen 4 may be an Ethernet packet, packet or ATM, or other type of exchange messages. For example, if the ONU0 device supports the service access of the user port with the VLAN 101, the VLAN ID of the uplink service VLAN used is 100. When the service data of the user port 0 of the ONU0 is uplinked, the ONU0 switches the VLAN ID 101 of the service data to Its own VLAN ID 100 is sent from the upstream port of ONU0 to the upper device. ONUn uses the VLAN with the VLAN ID of 200 as the uplink, and supports the service access of the user port with the VLAN ID 201. Of course, ONU0 and ONUn use There may be one or more of the upstream VLAN and the downstream VLAN. The embodiment of the present invention is exemplified by an Ethernet packet, and a person skilled in the art can learn, according to the description, an operation situation in which an exchange message is an ATM message or another type of message.

倒换发生之前， ONU0的接入侧业务，经由上行 VLAN通过 P0N 口上行到 0LT。例如， ONU0接收用户端口 0的数据，识别用户数据的 VLAN ID 为 101 , 切换为 ONU0 自己的 VLAN ID 100 ; 在 ONUO设备内部，完成对该用户 4艮文的源媒体接入控制（MAC , Med ia Acces s Cont ro l )地址学习，记录源 MAC地址、用户端口 0、用户 VLAN标识 1 01、上行 VLAN标识 100的映射关系。将以太网艮文形式的带 VLAN ID 100的上行交换 ^艮文经由 P0N协议处理和 P0N封装通过 P0N口发送给 0LT。下行方向， ONU0从 P0N口接收信息并经 P0N协议处理和解除 P0N封装，获得 VLAN ID 100的以太网 4艮文，根据 VLAN信息和目的 MAC 地址查找到用户端口 0和用户 VLAN标识 101 , 完成上行 VLAN到用户 VLAN的切换，获得用户数据。 Before the switchover occurs, the access-side service of the ONU0 is uplinked to the 0LT through the P0N port through the uplink VLAN. For example, the ONU0 receives the data of the user port 0, identifies the VLAN ID of the user data as 101, and switches to the ONU0's own VLAN ID 100. Within the ONUO device, the source media access control for the user 4 is completed (MAC, Med Ia Acces s Cont ro l) address learning, recording the mapping relationship between the source MAC address, user port 0, user VLAN ID 01, and upstream VLAN ID 100. The uplink exchange with the VLAN ID 100 in the Ethernet text format is sent to the 0LT through the P0N port through the P0N protocol processing and the P0N encapsulation. In the downlink direction, the ONU0 receives the information from the P0N port and processes the P0N packet through the P0N protocol, and obtains the Ethernet 4 packet of the VLAN ID 100. The user port 0 and the user VLAN ID 101 are searched according to the VLAN information and the destination MAC address to complete the uplink. Switch from VLAN to user VLAN to obtain user data.

0LT下行方向，根据下行交换报文的目的 MAC地址和上行 VLAN信息，查询出端口信息，会查询到该 MAC地址是从 ONU0上以 VLAN 100上行的，然后切换下行报文的 VLAN 标识为 1 00 , 发向 ONU0。 In the downlink direction of the 0LT, the port information is queried according to the destination MAC address and the uplink VLAN information of the downlink switching packet, and the MAC address is forwarded from the ONU0 to the VLAN 100, and then the VLAN identifier of the downlink packet is 1 00. , sent to ONU0.

可以有多种情况触发 ONU0向 ONUn的倒换，例如 ONU0和 0LT之间的链路发生故障、维护管理需要等。 ONU0作为倒换的发起方，可以在需要倒换时，将上行业务通道由原来的上行 P0N 口，切换到 WiF i端口，使得原来通过上行口上行的业务，通过 WiF i端口发向备用的 0NUn。例如，通过端口镜像功能，将原来的上行口数据镜像到 WiF i口；或者将 WiF i口加入上行 VLAN中，通过 VLAN 内广播实现报文同时向上行口和 WiF i 口发送。备用终端节点 ONUn可以是根据配置确定的备用节点，也可以是经过一定的通信交互动态确定的备用节点。 There are a variety of situations that can trigger the switching of ONU0 to ONUn, for example, the link between ONU0 and 0LT fails, maintenance management needs, and so on. ONU0 is the initiator of the switchover. When the switchover needs to be performed, the uplink service channel is switched from the original uplink P0N port to the WiF i port, so that the service that is originally uplinked through the uplink port is sent to the standby 0NUn through the WiF i port. For example, the port mirroring function is used to mirror the original uplink port data to the WiF i port. The WiF i port is added to the uplink VLAN. The packets are broadcast in the VLAN and sent to the upstream port and the WiF port. The standby terminal node ONUn may be a standby node determined according to the configuration, or may be a standby node dynamically determined through a certain communication interaction.

如图 3所示，本发明实施例提供的通信保护方法可以包括以下步骤：步骤 309 : ONUn从无线端口接收 0NUQ发送的上行无线报文，该上行无线报文包含上行数据，上行数据包含 ONU0的交换数据标识，该上行无线报文还包含 ONU0的无线通信地址。例如， ONUn从 WiF i端口接收上行无线报文，上行无线报文中封装的上行数据可以是 ONU0发往 0LT的上行交换报文，上行交换报文包含了 ONU0使用的 VLAN ID 1 00 , 该 VLAN ID 100就是一种交换数据标识。该上行无线报文可以是如图 4 所示的二层报文，报文包括报文头和数据字段，报文头包括以下字段：画 AC为目地 MAC地址， SMAC为源 MAC地址，虚拟局域网（ VLAN )标签、以太报文类型、和数据字段。上行数据封装在数据字段，可以通过定义以太网报文类型字段识别出数据字段的内容为 ONU0发往 0LT的上行数据。该上行无线 4艮文的源 MAC字段包含了 ONU0的 MAC地址，该 MAC地址是一种无线通信地址。 As shown in FIG. 3, the communication protection method provided by the embodiment of the present invention may include the following steps: Step 309: ONUn receives an uplink radio packet sent by the ONUQ from the radio port, where the uplink radio packet includes uplink data, and the uplink data includes ONU0. The data identifier is exchanged, and the uplink radio message further includes a wireless communication address of the ONU0. For example, the ONUn receives the uplink radio packet from the WiF i port, and the uplink data encapsulated in the uplink radio packet may be the uplink exchange packet sent by the ONU0 to the 0LT, and the uplink exchange packet includes the VLAN ID 1 00 used by the ONU0. ID 100 is an exchange data identifier. The uplink radio packet may be a Layer 2 packet as shown in FIG. 4, and the packet includes a packet header and a data field. The packet header includes the following fields: The AC is the destination MAC address, the SMAC is the source MAC address, and the virtual local area network is used. (VLAN) tag, Ethernet message type, and data field. The uplink data is encapsulated in the data field, and the content of the data field is identified by the definition of the Ethernet message type field as the uplink data sent by the ONU0 to the 0LT. The source MAC field of the uplink wireless message includes the MAC address of the ONU0, and the MAC address is a wireless communication address.

步骤 311 : ONUn从 P0N端口向 0LT发送上行报文，该上行报文包含 ONUn 的标识和从上行无线报文中提取的上行数据。 Step 311: The ONUn sends an uplink packet from the P0N port to the 0LT, where the uplink packet includes the identifier of the ONUn and the uplink data extracted from the uplink radio packet.

ONUn可以在收到上行无线报文后，将该上行无线报文封装的上行数据转发到 P0N端口，经 P0N封装为上行报文向 0LT发送，尽管上行数据是 ONU0和 0LT之间的数据，但是经 ONUn和 0LT的 P0N端口发送，携带的是 ONUn和 0LT 通信所使用的标识。该上行报文的封装形式根据具体的 P0N类型而不同，可以是 GP0N、 EP0N或 X-GP0N类型。 After receiving the uplink radio packet, ONUn can forward the uplink data encapsulated in the uplink radio packet to the P0N port, and send the uplink packet to the 0LT through the P0N encapsulation. Although the uplink data is data between ONU0 and 0LT, It is sent via the ONN and 0LT P0N ports, carrying the identifiers used by ONUn and 0LT communications. The encapsulation format of the uplink packet varies according to the specific P0N type, and may be a GP0N, EP0N or X-GP0N type.

通过步骤 309和步骤 311 ,可以将 0NUQ发往 0LT的通信数据通过 ONU0和 ONUn之间的无线端口和 ONUn的 P0N端口发送给 0LT, 起到了对 0NUQ和 0LT 之间的数据通信的保护作用。在图 2中， ONU0和 0LT的通信数据就是通过虚线所示的路径经 ONUn转发。 Through step 309 and step 311, the communication data sent from 0NUQ to 0LT can be sent to the 0LT through the radio port between ONU0 and ONUn and the P0N port of ONUn, which protects the data communication between 0NUQ and 0LT. In Figure 2, the communication data of ONU0 and 0LT is forwarded by ONUn through the path indicated by the dotted line.

步骤 31 3: ONUn从 P0N端口接收下行报文，该下行报文包含 ONUn的标识和 0LT发往 ONU0的下行数据，该下行数据包含 ONU0使用的交换数据标识。 Step 31: The ONUn receives the downlink packet from the P0N port, and the downlink packet includes the identifier of the ONUn and the downlink data sent by the 0LT to the ONU0, where the downlink data includes the exchanged data identifier used by the ONU0.

ONUn通过 P0N端口接收下行报文，该报文可以是 GP0N、 EP0N或者 XG-P0N 等报文。该报文包含 ONUn和 0LT通信使用的标识，但是包含了发给 ONU0的下行交换报文，该交换数据中包含 ONU0使用的 VLAN ID 100。 The ONUn receives the downlink packet through the P0N port. The packet can be a packet such as GP0N, EP0N, or XG-P0N. The message contains the identifier used by ONUn and 0LT communication, but contains the downlink exchange message sent to ONU0, which contains the VLAN ID 100 used by ONU0.

步骤 315 : 根据 ONU0使用的交换数据标识、 ONU0的无线通信地址、和 ONUn的无线端口的转发关系，转发该下行数据到无线端口，并从该无线端口向 ONUO的无线通信地址发送下行无线报文，该下行无线报文包含该下行数据。例如，将下行报文去掉 P0N封装后提取出下行交换报文后，识别出 VLAN ID 100 , 才艮据该 VLAN ID、 ONUn的无线端口、 ONUO的无线通信地址之间的对应关系，将该下行交换报文转发给 ONUn的无线端口，并以 ONU0的无线通信地址为目的 MAC地址，将该下行交换报文经过无线封装后发送给 ONU0。 Step 315: Forward the downlink data to the wireless port according to the exchange data identifier used by the ONU0, the wireless communication address of the ONU0, and the forwarding relationship of the wireless port of the ONUn, and from the wireless port. Sending a downlink radio packet to the wireless communication address of the ONUO, where the downlink radio packet includes the downlink data. For example, after the downlink packet is removed from the P0N encapsulation and the downlink exchange packet is extracted, the VLAN ID 100 is identified, and the corresponding relationship between the VLAN ID, the ONUn wireless port, and the ONUO wireless communication address is determined. The exchanged packet is forwarded to the ONU's wireless port, and the ONU0's wireless communication address is used as the destination MAC address. The downlink exchanged packet is wirelessly encapsulated and sent to ONU0.

在一个实施例中， ONUn可以从 ONU0发来的上行无线 4艮文中提取 ONU0使用的交换数据标识和 ONU0 的无线通信地址，保存该交换数据标识和该无线通信地址之间的对应关系。例如， ONUn从 WiF i端口收到上行无线二层报文后 , 可以根据该二层报文的以太网数据类型字段确定该报文的数据字段包含 ONU0 发往 0LT的上行交换报文，该上行交换报文包含 ONU0使用的 VLAN ID 100 , 二层 4艮文还包括 ONU0的 MAC地址，可以 4巴该 VLAN ID 100、 ONU0的 MAC地址、以及 ONUn的 WiF i端口之间的转发关系保存起来，该转发关系可以用于转发下行数据。 In an embodiment, the ONUn may extract the exchange data identifier used by the ONU0 and the wireless communication address of the ONU0 from the uplink radio message sent by the ONU0, and save the correspondence between the exchange data identifier and the radio communication address. For example, after the ONUn receives the uplink radio layer 2 packet from the WiF i port, it can determine, according to the Ethernet data type field of the layer 2 packet, that the data field of the packet includes the uplink exchange packet sent by the ONU0 to the 0LT, and the uplink The exchange message contains the VLAN ID 100 used by the ONU0. The Layer 2 message also includes the MAC address of the ONU0. It can be saved in the forwarding relationship between the VLAN ID 100, the MAC address of the ONU0, and the WiF i port of the ONUn. The forwarding relationship can be used to forward downlink data.

对于 ONUn需要转发多个其他 0NU发往 0LT的数据的情形，可以记录下每个其他 0NU使用的交换数据标识、无线通信地址和 ONUn使用的相应的无线端口的转发关系，以便正确转发下行数据到其他 0NU。 For the case where ONUn needs to forward data from multiple other 0NUs to 0LT, it can record the exchange data identifier used by each other ONU, the wireless communication address, and the forwarding relationship of the corresponding radio port used by ONUn, so as to correctly forward the downlink data to Other 0NU.

在另一个实施例中，该方法可以进一步包括如图 3a中所示的步骤 302 : 步骤 302 : ONUn从无线端口接收 0NUQ发送的保护组创建请求报文，该报文包含 ONU0使用的交换数据标识和无线通信地址。可以从该保护组创建请求报文中提取该交换数据标识和无线通信地址，并建立转发关系。例如，保护组创建请求报文可以以二层报文的形式通过 WiF i端口从 ONU0发送到 ONUn, 该 4艮文的格式可以如图 4所示， ONU0的无线通信地址可以是 SMAC。可以通过定义以太网报文类型值以指示数据字段携带与业务保护有关的倒换协议消息，例如此处的保护组创建请求消息。相应地，当 ONU0不再需要 ONUn转发数据时保护业务时，可以向 ONUn发送保护组删除请求报文， ONUn收到后，可以删除相应的和 ONU0有关的转发关系。 In another embodiment, the method may further include step 302 as shown in FIG. 3a: Step 302: ONUn receives a protection group creation request message sent by the ONUQ from the wireless port, the message containing the exchange data identifier used by the ONU0 And wireless communication address. The exchange data identifier and the wireless communication address may be extracted from the protection group creation request message, and a forwarding relationship is established. For example, the protection group creation request message can be sent from the ONU0 to the ONUn through the WiF i port in the form of a Layer 2 packet. The format of the message can be as shown in Figure 4. The wireless communication address of the ONU0 can be SMAC. The Ethernet message type value can be defined to indicate that the data field carries a switching protocol message related to the service protection, such as the protection group creation request message herein. Correspondingly, when the ONU0 does not need ONUn to forward data to protect the service, the protection group delete request message can be sent to the ONUn. After the ONUn is received, the corresponding forwarding relationship related to the ONU0 can be deleted.

报文的数据字段的内容可以按照类型长度值 ( TLV , Type Leng th Va lue ) 格式封装，可以视需要携带一个或多个 TLV字段。本实施例中的消息可以采用表 1的格式和内容。保护组创建消息可以包含交换数据标识，如 ONU0使用的 VLAN ID 1 00。 The content of the data field of the message can be according to the type length value ( TLV , Type Leng th Va lue ) Format encapsulation, one or more TLV fields can be carried as needed. The message in this embodiment can adopt the format and content of Table 1. The protection group creation message can contain the exchange data identifier, such as VLAN ID 1 00 used by ONU0.

表 1 Table 1

通过从保护组倒换消息中提取了相应信息建立了转发关系， ONUn 可以不用检查 ONU0发往 0LT的上行数据中的 VLAN ID并提取信息建立转发关系，而是直接转发到 P0N端口。对于 ONUn需要转发多个其他 0NU发往 0LT的数据的情形， ONUn可以从收到到每个其他 0NU发送的保护组倒换消息提取出信息建立转发关系。 The forwarding relationship is established by extracting the corresponding information from the protection group switching message. ONUn can check the VLAN ID of the uplink data sent by the ONU0 to the 0LT and extract the information to establish the forwarding relationship, but directly forward to the P0N port. For the case where ONUn needs to forward data from multiple other 0NUs to 0LT, ONUn can extract the information to establish a forwarding relationship from the protection group switching message sent by each other 0NU.

通过步骤 31 3、 315 , 根据转发关系，可以从下行报文中识别出需要发往主用终端节点的数据后，将该数据通过备用终端节点的无线端口发给主用终端节点。 According to the forwarding relationship, after the data to be sent to the active terminal node is identified from the downlink packet, the data is sent to the active terminal node through the wireless port of the standby terminal node.

倒换前，0LT通过 ONU0对应的 P0N端口 PON0端口接收 ONU0的 VLAN ID 100 的交换报文，对于需要发送给 ONU0的交换报文，也将交换标识 VLAN ID置为 100 , 从 PONn接收 ONUn的 VLAN ID 200的交换报文，对于需要发送给 ONUn 的交换报文，将 VLAN ID置为 200。发生倒换后， 0LT从 PONn收到 ONUn发送的上行报文后， OLT可以采用自动学习的方式建立转发关系，从 PONn收到 ONU0 发送的 VLAN ID 100的 ^艮文，则向 0NUQ发送 ^艮文时，也通过 PONn端口下发，但是仍然使用 ONU0使用 VLAN ID 1 00。 Before the switchover, the 0LT receives the exchanged packet of the VLAN ID 100 of the ONU0 through the PON0 port of the P0N port corresponding to the ONU0. For the exchange message to be sent to the ONU0, the switch identifier VLAN ID is also set to 100, and the VLAN ID of the ONUn is received from the PONn. For the exchange message of 200, set the VLAN ID to 200 for the exchange message to be sent to ONUn. After the switchover occurs, 0LT receives an ONUn from the PONn. After the uplink packet is sent, the OLT can establish the forwarding relationship by using the automatic learning mode. When the PONn receives the VLAN ID 100 sent by the ONU0, the OLT sends the packet to the ONUQ, and also sends the packet through the PONn port. Use VLAN ID 1 00 with ONU0.

进一步，该方法还可以包括图 3a中的以下步骤： Further, the method may further comprise the following steps in Figure 3a:

步骤 303: ONUn从无线端口接收 ONU0发送的保护组倒换请求消息，该消息包含 ONU0的标识。 Step 303: The ONUn receives the protection group switching request message sent by the ONU0 from the radio port, and the message includes the identifier of the ONU0.

该保护组倒换消息的格式可以如表 1所示，该消息包含源 0NU, 即 ONU0 的标识，用来在发给 0LT的保护组保护组倒换通知消息中告知 ONU0的数据将被转发。该消息还可以包括目的 0NU , 即 ONUn的标识，可以用来校验收到该消息的 0NU是否是需要转发 ONU0的数据的 0NU。0NUn收到保护组倒换消息后，可以发送响应消息，也可以不发送响应消息，相应地， ONU0可以等待收到响应消息后再发送数据，也可以不用等待响应消息。 The format of the protection group switching message can be as shown in Table 1. The message contains the source 0NU, that is, the identifier of the ONU0, and is used to inform the ONU0 that the data of the ONU0 will be forwarded in the protection group protection group switching notification message sent to the 0LT. The message may also include the destination 0NU, that is, the identity of ONUn, which may be used to verify whether the 0NU that received the message is 0NU of the data that needs to be forwarded to ONU0. After receiving the protection group switching message, 0NUn may send a response message or may not send a response message. Accordingly, ONU0 may wait for the response message to be sent before sending the data, or may not wait for the response message.

步骤 305 : ONUn从 P0N端口向 0LT发送保护组保护组倒换通知消息，该消息包含 ONU0的标识。 ONUn可以通过 0AM和 0MCI消息将保护组保护组倒换通知消息发送给 0LT。 Step 305: The ONUn sends a protection group protection group switching notification message from the P0N port to the 0LT, where the message includes the identifier of the ONU0. ONUn can send a protection group protection group switching notification message to 0LT through 0AM and 0MCI messages.

通过步骤 303和 305 , ONUn可以通知 OLT, ONUn将转发 ONU0和 0LT之间的通信数据， 0LT可以做出相应的处理。例如， 0LT可以重新建立转发关系，将原来要通过 PON0端口发给 ONU0的数据，通过 PONn端口发送给 ONUn以便 ONUn转发。 Through steps 303 and 305, ONUn can notify the OLT that ONUn will forward the communication data between ONU0 and 0LT, and 0LT can perform corresponding processing. For example, 0LT can re-establish the forwarding relationship, and send the data originally sent to ONU0 through the PON0 port to the ONUn through the PONn port for ONUn forwarding.

0LT收到保护组倒换通知消息后，可以不用从上行报文中动态学习转发关系，而是可以通过保护组倒换通知消息建立转发关系。无论怎样建立转发关系， 0LT通过 ONUn转发的同时，也可以仍然通过 PON0向 ONU0发送。 After receiving the protection group switching notification message, the 0LT can dynamically learn the forwarding relationship from the uplink packet, but can establish a forwarding relationship through the protection group switching notification message. Regardless of how the forwarding relationship is established, 0LT can still be sent to ONU0 through PON0 while being forwarded by ONUn.

步骤 303、 305可以是在 ONU0确定需要倒换时首先发送给 ONUn,以便 ONUn 发送给 OLT, 也可以是在转发数据过程中发送。 Steps 303 and 305 may be first sent to the ONUn when the ONU0 determines that the switching needs to be performed, so that the ONUn is sent to the OLT, or may be sent during the process of forwarding data.

进一步， ONU0不再需要通过 ONUn转发和 0LT之间的通信数据时，例如和 0LT之间的链路恢复正常了，该方法可以进一步包括如图 3a所示的以下步骤：步骤 317 : ONUn从无线端口接收 0NUQ发送的保护组恢复请求报文，该保护组恢复请求报文包含 ONU0的标识； Further, when the ONU0 no longer needs to forward the communication data between the ON and the ONT, for example, the link between the OLT and the OLT is restored, the method may further include the following steps as shown in FIG. 3a: Step 317: ONUn from the wireless The port receives the protection group recovery request message sent by the 0NUQ, the protection The protection group recovery request message includes the identifier of ONU0;

步骤 319 : ONUn从 P0N端口向 0LT发送恢复通知消息，该恢复通知消息包含 ONU0的标识。 Step 319: ONUn sends a recovery notification message from the P0N port to the 0LT, and the recovery notification message includes the identifier of the ONU0.

通过步骤 317和步骤 319 , ONU0可以通过 ONUn通知 0LT , 不再通过 ONUn 转发通信数据， ONU0和 0LT可以恢复为使用 P0N端口进行通信。 Through steps 317 and 319, ONU0 can notify 0LT through ONUn, and no longer forward communication data through ONUn, and ONU0 and 0LT can be restored to communicate using the P0N port.

可选地，该方法还可以进一步包括如图 3a所示的以下步骤： Optionally, the method may further comprise the following steps as shown in Figure 3a:

步骤 306 : ONUn从 P0N端口向 0LT发送带宽请求消息，该带宽分配请求消息请求分配新带宽，该新带宽大于等于 0LT分配给 ONUn的当前可用最大带宽，并且小于等于 0LT分配给 ONU0的可用最大带宽和 0LT分配给 ONU0的可用最大带宽之和。 Step 306: ONUn sends a bandwidth request message from the P0N port to the OLT, and the bandwidth allocation request message requests to allocate a new bandwidth, which is greater than or equal to the currently available maximum bandwidth allocated by the 0LT to the ONUn, and less than or equal to the maximum available bandwidth allocated by the 0LT to the ONU0. And the sum of the maximum available bandwidth that 0LT allocates to ONU0.

步骤 307 : ONUn从 P0N端口接收 0LT发送的带宽分配消息，该带宽分配消息包含 ONUn所请求分配的新带宽的信息。 Step 307: ONUn receives the bandwidth allocation message sent by the 0LT from the P0N port, and the bandwidth allocation message includes information about the new bandwidth requested by ONUn.

通过步骤 306和步骤 307 , ONUn可以获得更大的新带宽，例如新分配的带宽为原来分配给 ONU0和 ONUn的带宽之和， ONUn可以有足够的带宽传输 ONU0 和 ONUn的通信数据，保证服务质量。 ONUn可以在确定需要转发 ONU0和 0LT 之间的通信数据后，向 0LT发送带宽分配请求。 Through steps 306 and 307, ONUn can obtain a larger new bandwidth. For example, the newly allocated bandwidth is the sum of the bandwidth originally allocated to ONU0 and ONUn, and ONUn can have sufficient bandwidth to transmit the communication data of ONU0 and ONUn to ensure the quality of service. . ONUn can send a bandwidth allocation request to 0LT after determining that the communication data between ONU0 and 0LT needs to be forwarded.

步骤 301 : ONUn从无线端口发送认证通知消息，该认证通知消息包含 ONUn 的信息。 ONUn的信息可以包括 ONUn的标识、 ONUn所属的 0LT的标识、 ONUn 对应的 0LT上的 P0N端口的标识等。 Step 301: ONUn sends an authentication notification message from the wireless port, where the authentication notification message includes information of ONUn. The information of the ONUn may include the identifier of the ONUn, the identifier of the 0LT to which the ONUn belongs, and the identifier of the P0N port on the 0LT corresponding to the ONUn.

该认证通知消息的格式可以如表 1 所示。该认证通知消息可以广播方式发送到和 ONUn在同一个无线网络的 0NU。通过该认证通知消息，备用终端节点 ONUn可以将自己的信息发送给其他 0NU , 其他 0NU可以根据收到的认证通知消息动态地选择备用终端节点。例如，可以根据认证通知消息中包含的发送该认证通知消息的 0NU的标识选择一个标识值最小的 0NU作为备用，也可以根据认证通知消息中包含的发送该认证通知消息的 0NU对应的 0LT的标识以及对应的 0LT的 P0N端口号选择一个和自己对应同一个 0LT的同一个 P0N 端口的作为备用。 The format of the authentication notification message can be as shown in Table 1. The authentication notification message can be broadcasted to the ONU of the same wireless network as ONUn. Through the authentication notification message, the standby terminal node ONUn can send its own information to other ONUs, and the other ONUs can dynamically select the alternate terminal node according to the received authentication notification message. For example, the ONU with the smallest identifier value may be selected as the backup according to the identifier of the ONU that sends the authentication notification message included in the authentication notification message, or may be the identifier of the 0LT corresponding to the ONU that sends the authentication notification message included in the authentication notification message. And the corresponding 0LT P0N port number selects the same P0N that corresponds to the same 0LT. The port is used as a backup.

以上实施例是以 0NU作为终端节点， 0LT作为局端节点为例进行说明的，实际上，该实施例描述的方法对于其他类型的终端节点和局端节点也可以适用。例如，对于同轴电缆以太网（EOC , Etherne t over Coax )终端设备、 E0C 局端设备分别作为终端节点、局端节点的情形。在 E0C网络中， E0C局端设备位于同一无线网络内，例如 WiF i 网络内，可以组成保护组而互相保护， E0C 终端我们称为 CNU , 以 CNUO和 CNUn为例，当 CNUO故障后，可以向 CNUn发起倒换请求， CNUn接收到 CNUO的倒换请求，在 WiF i端口接收 CNUO的上行业务数据，并从自己的上行口发给 E0C局端设备。 E0C局端上可以对于 CNUO和 CNUn 都配置了相同的业务配置，可以保证 CNUO的业务经 CNUn转发后正确地上行。与 0NU和 0LT之间交互不同的是，由于 E0C***没有带宽分配机制，因此在 CNUn转发 CNUO和 E0C局端设备之间的数据时，无须调整 CNUn和 E0C局端设备之间的带宽。本发明的实施例提供了一种通信保护的装置，结合图 2所示，如果以 ONUn 为备用终端节点， ONU0为主用终端节点， 0LT为局端节点， ONUn和 ONU0通过 WiF i网络实现无线通信，该装置可以在 ONUn中实现，该装置如图 5中 500所示，包括： The above embodiment is described by taking 0NU as the terminal node and 0LT as the central office node. In fact, the method described in this embodiment can also be applied to other types of terminal nodes and central office nodes. For example, for the case of the coaxial cable Ethernet (EOC, Etherne t over Coax) terminal device and the E0C central office device as the terminal node and the central office node respectively. In the E0C network, the E0C central office equipment is located in the same wireless network, for example, in the WiF i network, and can form a protection group and protect each other. The E0C terminal is called CNU. Taking CNUO and CNUn as an example, when the CNUO fails, it can CNUn initiates a switching request. CNUn receives the CNUO switching request, and receives the CNUO uplink service data on the WiF i port, and sends it to the E0C central office device from its own uplink port. Both the CNUO and the CNUn can be configured with the same service configuration on the E0C office. This ensures that the CNUO service is correctly forwarded after being forwarded by CNUn. Different from the interaction between 0NU and 0LT, since the E0C system does not have a bandwidth allocation mechanism, it is not necessary to adjust the bandwidth between the CNUn and the E0C central office equipment when CNUn forwards data between the CNUO and the E0C central office equipment. An embodiment of the present invention provides a device for communication protection. As shown in FIG. 2, if ONUn is used as a standby terminal node, ONU0 is a primary terminal node, 0LT is a central office node, and ONUn and ONU0 are wirelessly implemented through a WiF i network. Communication, the device can be implemented in ONUn, which is shown as 500 in FIG. 5, and includes:

无线端口处理单元 501和有线端口处理单元 503。 Wireless port processing unit 501 and wired port processing unit 503.

在 ONUn中的无线端口处理单元可以为 WiF i端口处理单元，用于接收上行无线报文，该上行无线报文包含上行数据，该上行数据包含 ONU0的交换数据标识，该上行无线 ·^艮文包含 ONU0的无线通信地址。该交换数据标识可以是 ONU0使用的上行使用的 VLAN ID ,无线通信地址可以是 ONU0的 MAC地址。 WiF i 端口处理单元可以在 WIFI芯片中实现， WIFI芯片实现无线 4艮文的封装和解封装，通过解析报文头的地址，识别报文是否需要转交上层业务模块处理或者丟弃。 The radio port processing unit in the ONUn may be a WiF i port processing unit, configured to receive an uplink radio packet, where the uplink radio packet includes uplink data, where the uplink data includes an exchange data identifier of the ONU0, and the uplink radio packet Contains the wireless communication address of ONU0. The exchange data identifier may be the uplink VLAN ID used by the ONU0, and the wireless communication address may be the MAC address of the ONU0. The WiF i port processing unit can be implemented in the WIFI chip. The WIFI chip implements the encapsulation and decapsulation of the wireless device. The address of the packet header is analyzed to identify whether the packet needs to be forwarded to the upper layer service module for processing or discarding.

在 ONUn中有线端口处理单元可以为 P0N端口处理单元，用于向 0LT发送上行报文，该上行报文包含 ONUn的标识和 ONU0发往 0LT的上行数据。有线端口处理单元可以在通用逻辑 FPGA 芯片中实现，也可以在专用集成电路 (ASIC, Application Specific Intergrated Circuits ) 中实现。 The wired port processing unit in ONUn can be a P0N port processing unit for sending to the 0LT In the uplink packet, the uplink packet includes the identifier of the ONUn and the uplink data sent by the ONU0 to the 0LT. The wired port processing unit can be implemented in a general-purpose logic FPGA chip or in Application Specific Interconnected Circuits (ASIC).

进一步，装置 500还可以包括： Further, the apparatus 500 may further include:

转发关系建立单元 505, 用于建立 ONU0使用的交换数据标识、 ONU0的无线通信地址、和 ONUn的无线端口的对应关系。该转发关系建立单元，可以通过使用通用的中央处理器运行软件软件实现。 The forwarding relationship establishing unit 505 is configured to establish a correspondence between the exchange data identifier used by the ONU0, the wireless communication address of the ONU0, and the wireless port of the ONUn. The forwarding relationship establishing unit can be implemented by running software software using a general-purpose central processing unit.

有线端口处理单元 501, 接收下行报文，该下行报文包含 ONUn的标识和包含 ONU0使用的交换数据标识的下行数据，根据该交换数据标识和已经建立的转发关系，转发该下行数据到无线端口处理单元 503; The wired port processing unit 501 receives the downlink packet, where the downlink packet includes the identifier of the ONUn and the downlink data including the exchange data identifier used by the ONU0, and forwards the downlink data to the wireless port according to the exchanged data identifier and the established forwarding relationship. Processing unit 503;

无线端口处理单元 503, 向该转发关系中保存的 ONU0的无线通信地址发送下行无线报文，该下行无线报文包含该下行数据。 The radio port processing unit 503 sends a downlink radio packet to the wireless communication address of the ONU0 stored in the forwarding relationship, and the downlink radio packet includes the downlink data.

具体地，建立上述对应关系可以是从上行无线报文中提取 ONU0使用的交换数据标识、 ONU0的无线通信地址，并保存 ONU0使用的交换数据标识、 ONU0 的无线通信地址和 ONUn的无线端口的对应关系；也可以是从无线端口处理单元 501接收的 ONU0发送的保护组创建请求报文中提取 ONU0使用的交换数据标识、 ONU0的无线通信地址，并保存该对应关系。 Specifically, the foregoing correspondence may be established by extracting, from the uplink radio packet, the exchange data identifier used by the ONU0, the wireless communication address of the ONU0, and storing the exchange data identifier used by the ONU0, the wireless communication address of the ONU0, and the correspondence of the wireless port of the ONUn. The relationship may be obtained by extracting the exchange data identifier used by the ONU0 and the wireless communication address of the ONU0 from the protection group creation request message sent by the ONU0 received by the radio port processing unit 501, and storing the correspondence.

进一步，无线端口处理单元 501, 还可以接收 ONU0发送的保护组倒换请求报文，该保护组倒换请求报文包含 ONU0的标识；有线端口处理单元 503, 向 0LT发送保护组倒换通知消息，该保护组倒换通知消息包含从保护组倒换请求报文中提取的 ONU0的标识。 Further, the radio port processing unit 501 may further receive a protection group switching request message sent by the ONU0, where the protection group switching request message includes an identifier of the ONU0; the wired port processing unit 503 sends a protection group switching notification message to the OLT, the protection The group switching notification message includes the identifier of the ONU0 extracted from the protection group switching request message.

进一步，无线端口处理单元 501, 还可以接收 ONU0发送的保护组恢复请求报文，该保护组恢复请求报文包含 ONU0的标识；有线端口处理单元 503, 向 0LT发送恢复通知消息，该恢复通知消息包含 ONU0的标识。 Further, the radio port processing unit 501 may further receive a protection group recovery request message sent by the ONU0, where the protection group recovery request message includes an identifier of the ONU0. The wired port processing unit 503 sends a recovery notification message to the OLT, the recovery notification message. Contains the ID of ONU0.

进一步，有线端口处理单元 503, 还可以从 P0N端口向 0LT发送带宽请求消息，该带宽分配请求消息请求分配新带宽，该新带宽大于等于 0LT分配给 ONUn可用最大带宽，并且小于等于 0LT分配给 ONU0的可用最大带宽和 0LT分配给 ONUO的可用最大带宽之和，而后，有线端口处理单元 503从 P0N端口接收 0LT发送的带宽分配消息，该带宽分配消息包含 ONUn所请求分配的新带宽的信息。 Further, the wired port processing unit 503 may further send a bandwidth request message from the PON port to the OLT, where the bandwidth allocation request message requests to allocate a new bandwidth, the new bandwidth is greater than or equal to 0LT allocated to the ONUn available maximum bandwidth, and less than or equal to 0LT is allocated to the ONU0. Maximum available bandwidth and 0LT points The sum of the available maximum bandwidths allocated to the ONUO, and then the wired port processing unit 503 receives the bandwidth allocation message sent by the OLT from the PON port, the bandwidth allocation message containing information of the new bandwidth requested by the ONUn.

进一步，无线端口处理单元 501 , 还可以发送认证通知消息，该认证通知消息包含 ONUn的信息。该认证通知消息可以用来通知 ONUO , ONUn能够转发 ONU0和 0LT之间的通信数据。 Further, the radio port processing unit 501 can also send an authentication notification message, the authentication notification message including ONUn information. The authentication notification message can be used to notify the ONUO that ONUn can forward the communication data between ONU0 and 0LT.

本装置实施例是以 0NU作为终端节点、 0L T作为局端节点为例进行描述的 , 对于其他类型的终端节点和局端节点，例如 E0C终端设备和 E0C局端设备，本实施的描述也同样适用，对于 E0C终端设备，有线端口处理单元可以为有线电视 ( CATV , Cab l e TV )端口处理单元。所不同的是，由于 E0C ***没有带宽分配机制，因此在 CNUn转发 CNU0和 E0C局端设备之间的数据时，无须调整 CNUn和 E0C局端设备之间的带宽。 The embodiment of the present invention is described by taking an ONU as a terminal node and 0L T as a central office node. For other types of terminal nodes and central office nodes, such as an E0C terminal device and an E0C central office device, the description of this implementation is also the same. For the E0C terminal device, the wired port processing unit may be a cable TV (CATT, Cab le TV) port processing unit. The difference is that since the E0C system does not have a bandwidth allocation mechanism, it is not necessary to adjust the bandwidth between the CNUn and the E0C central office equipment when the CNUn forwards the data between the CNU0 and the E0C central office equipment.

本领域技术人员可以将装置实施例部分的描述和方法实施例部分的描述结合起来进行理解。本发明的实施例还提供了一种通信保护的***，如图 6 中 600所示，该 ***包括主用终端节点 601、备用终端节点 603、局端节点 605 , 主用终端节点和备用终端节点可以是 0NU , 也可以是 E0C终端，相应的，局端节点的类型可以是 0LT , 也可以是 E0C局端设备。对于主用终端节点 601、备用终端节点 603、局端节点 605之间的交互过程，可以参见方法实施例部分和装置实施例部分的描述。通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到本发明可借助软件加必需的硬件平台的方式来实现，当然也可以全部通过硬件来实施。基于这样的理解，本发明的技术方案对背景技术做出贡献的全部或者部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在存储介质中，如 R0M/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备（可以是个人计算机，服务器，或者网络设备等）执行本发明各个实施例或者实施例的某些部分所述的方法。 Those skilled in the art can understand the description of the device embodiment part and the description of the method embodiment part. The embodiment of the present invention further provides a system for communication protection, as shown in 600 of FIG. 6, the system includes an active terminal node 601, a standby terminal node 603, a central office node 605, a primary terminal node, and a standby terminal node. It can be 0NU or E0C terminal. Correspondingly, the type of the central office node can be 0LT or E0C central office equipment. For the interaction process between the primary terminal node 601, the standby terminal node 603, and the central office node 605, reference may be made to the description of the method embodiment part and the device embodiment part. Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus a necessary hardware platform, and of course, can also be implemented entirely by hardware. Based on such understanding, all or part of the technical solution of the present invention contributing to the background art may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM, a magnetic disk, an optical disk, or the like. , including a number of instructions to make a computer device (available The method described in various parts of the various embodiments or embodiments of the present invention is a personal computer, server, or network device.

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。 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

权利要求书 Claim

1. 一种通信保护的方法，其特征在于，包括： A method of communication protection, comprising:

2. 如权利要求 1所述的方法，其特征在于，进一步包括： 2. The method according to claim 1, further comprising:

从所述有线端口接收下行报文，所述下行报文包含所述备用终端节点的标识和下行数据，所述下行数据包含所述交换数据标识； Receiving, by the wired port, a downlink packet, where the downlink packet includes an identifier of the standby terminal node and downlink data, where the downlink data includes the exchange data identifier;

根据所述交换数据标识、所述无线通信地址、和所述无线端口的对应关系，转发所述下行数据到所述无线端口，并从所述无线端口向所述无线通信地址发送下行无线报文，所述下行无线报文包含所述下行数据。 And forwarding, according to the exchange data identifier, the wireless communication address, and the corresponding relationship of the wireless port, the downlink data to the wireless port, and sending a downlink wireless packet from the wireless port to the wireless communication address. The downlink wireless packet includes the downlink data.

3. 如权利要求 2所述的方法，其特征在于，进一步包括： 3. The method of claim 2, further comprising:

从所述上行无线报文中提取所述交换数据标识和所述无线通信地址，保存所述交换数据标识、所述无线端口、和所述无线通信地址的对应关系。 Extracting the exchange data identifier and the wireless communication address from the uplink wireless packet, and storing a correspondence between the exchange data identifier, the wireless port, and the wireless communication address.

4. 如权利要求 2所述的方法，其特征在于，进一步包括： 4. The method of claim 2, further comprising:

从所述无线端口接收所述主用终端节点发送的保护组创建请求报文，所述保护组创建请求报文包含所述交换数据标识、所述无线通信地址； Receiving, by the wireless port, a protection group creation request message sent by the primary terminal node, where the protection group creation request message includes the exchange data identifier and the wireless communication address;

从所述保护组创建请求报文中提取所述交换数据标识和所述无线通信地址，保存所述交换数据标识、所述无线端口、和所述无线通信地址的对应关系。 And extracting, by the protection group creation request message, the exchange data identifier and the wireless communication address, and storing a correspondence between the exchange data identifier, the wireless port, and the wireless communication address.

5. 如权利要求 1 - 4任一所述的方法，其特征在于，进一步包括：从所述无线端口接收所述主用终端节点发送的保护组倒换请求报文，所述保护组倒换请求报文包含所述主用终端节点的标识； The method according to any one of claims 1 to 4, further comprising: receiving, from the wireless port, a protection group switching request message sent by the active terminal node, the protection group switching request report The text includes an identifier of the primary terminal node;

从所述有线端口向所述局端节点发送保护组倒换通知消息，所述保护组倒换通知消息包含所述主用终端节点的标识。 And transmitting, by the wired port, a protection group switching notification message to the central office node, where the protection group switching notification message includes an identifier of the primary terminal node.

6. 如权利要求 5所述的方法，其特征在于，进一步包括：从所述无线端口接收所述主用终端节点发送的保护组恢复请求报文，所述保护组恢复请求报文包含所述主用终端节点的标识； 6. The method of claim 5, further comprising: Receiving, by the wireless port, a protection group recovery request message sent by the primary terminal node, where the protection group recovery request message includes an identifier of the primary terminal node;

从所述有线端口向所述局端节点发送恢复通知消息，所述恢复通知消息包含所述主用终端节点的标识。 And transmitting, by the wired port, a recovery notification message to the central office node, where the recovery notification message includes an identifier of the primary terminal node.

7. 如权利要求 1 - 6任一所述的方法，其特征在于，进一步包括：从所述有线端口向所述局端节点发送带宽分配请求消息，所述带宽分配请求消息所请求的新带宽大于等于所述备用终端节点的当前可用最大带宽，并且小于等于所述主用终端节点的当前可用最大带宽和所述备用终端节点的当前可用最大带宽。 The method according to any one of claims 1 to 6, further comprising: transmitting a bandwidth allocation request message from the wired port to the central office node, the new bandwidth requested by the bandwidth allocation request message And greater than or equal to a currently available maximum bandwidth of the standby terminal node, and less than or equal to a current available maximum bandwidth of the primary terminal node and a currently available maximum bandwidth of the standby terminal node.

从所述有线端口接收所述局端节点发送的带宽分配消息，所述带宽分配消息包含所述新带宽的信息。 Receiving, by the wired port, a bandwidth allocation message sent by the central office node, where the bandwidth allocation message includes information of the new bandwidth.

8. 如权利要求 1 - 7任一所述的方法，其特征在于，进一步包括：从所述无线端口发送认证通知消息，所述认证通知消息包含所述备用终端节点的信息。 The method according to any one of claims 1-7, further comprising: transmitting an authentication notification message from the wireless port, the authentication notification message including information of the standby terminal node.

9. 一种通信保护的装置，其特征在于，包括： A device for communication protection, comprising:

无线端口处理单元，用于接收上行无线报文，所述上行无线报文包含上行数据，所述上行数据包含主用终端节点的交换数据标识，所述上行无线报文包含所述主用终端节点的无线通信地址； a radio port processing unit, configured to receive an uplink radio packet, where the uplink radio packet includes uplink data, where the uplink data includes an exchange data identifier of the active terminal node, where the uplink radio packet includes the active terminal node Wireless communication address;

有线端口处理单元，用于向局端节点发送上行报文，所述上行报文包含所述备用终端节点的标识和所述上行数据。 The wired port processing unit is configured to send an uplink message to the central office node, where the uplink message includes an identifier of the standby terminal node and the uplink data.

1 0. 如权利要求 9所述的装置，其特征在于，进一步包括： The device of claim 9, further comprising:

转发关系建立单元，用于建立所述交换数据标识、所述无线通信地址、和所述无线端口的对应关系； a forwarding relationship establishing unit, configured to establish a correspondence between the exchange data identifier, the wireless communication address, and the wireless port;

所述有线端口处理单元，用于接收下行报文，所述下行报文包含所述备用终端节点的标识和包含所述交换数据标识的下行数据，根据所述交换数据标识和所述转发关系，转发所述下行数据到所述无线端口处理单元；所述无线端口处理单元，用于向所述无线通信地址发送下行无线报文，所述下行无线报文包含所述下行数据。 The wired port processing unit is configured to receive a downlink packet, where the downlink packet includes an identifier of the standby terminal node and downlink data that includes the identifier of the exchanged data, and according to the exchanged data identifier and the forwarding relationship, Forwarding the downlink data to the radio port processing unit; The radio port processing unit is configured to send a downlink radio packet to the wireless communication address, where the downlink radio packet includes the downlink data.

11. 如权利要求 10所述的装置，其特征在于，所述建立所述交换数据标识、所述无线通信地址、和所述无线端口的对应关系，包括： The device according to claim 10, wherein the establishing the correspondence between the exchange data identifier, the wireless communication address, and the wireless port comprises:

12. 如权利要求 10所述的装置，其特征在于： 12. Apparatus according to claim 10 wherein:

所述无线端口处理单元，用于接收所述主用终端节点发送的保护组创建请求报文，所述保护组创建请求报文包含所述交换数据标识、所述无线通信地址；所述建立所述交换数据标识、所述无线通信地址、和所述无线端口的对应关系，包括： The radio port processing unit is configured to receive a protection group creation request message sent by the active terminal node, where the protection group creation request message includes the exchange data identifier and the wireless communication address; The correspondence between the exchange data identifier, the wireless communication address, and the wireless port includes:

1 3. 如权利要求 9 - 12任一所述的装置，其特征在于： 1 3. Apparatus according to any of claims 9-12, characterized in that:

所述无线端口处理单元，用于接收所述主用终端节点发送的保护组倒换请求报文，所述保护组倒换请求报文包含所述主用终端节点的标识； The radio port processing unit is configured to receive a protection group switching request message sent by the active terminal node, where the protection group switching request message includes an identifier of the active terminal node;

所述有线端口处理单元，用于向所述局端节点发送保护组倒换通知消息，所述保护组倒换通知消息包含所述主用终端节点的标识。 The wired port processing unit is configured to send a protection group switching notification message to the central office node, where the protection group switching notification message includes an identifier of the primary terminal node.

14. 如权利要求 1 3所述的装置，其特征在于： 14. Apparatus according to claim 13 wherein:

所述无线端口处理单元，用于接收所述主用终端节点发送的保护组恢复请求报文，所述保护组恢复请求报文包含所述主用终端节点的标识； The radio port processing unit is configured to receive a protection group recovery request message sent by the active terminal node, where the protection group recovery request message includes an identifier of the active terminal node;

所述有线端口处理单元，用于向所述局端节点发送恢复通知消息，所述恢复通知消息包含所述主用终端节点的标识。 The wired port processing unit is configured to send a recovery notification message to the central office node, where the recovery notification message includes an identifier of the primary terminal node.

15. 如权利要求 9 - 14任一所述的装置，其特征在于： 15. Apparatus according to any of claims 9 - 14, characterized in that:

所述有线端口处理单元，用于向所述局端节点发送带宽分配请求消息，所述带宽分配请求消息所请求的新带宽大于等于所述备用终端节点的当前可用最大带宽，并且小于等于所述主用终端节点的当前可用最大带宽和所述备用终端节点的当前可用最大带宽，接收所述局端节点发送的带宽分配消息，所述带宽分配消息包含所述新带宽的信息。 The wired port processing unit is configured to send a bandwidth allocation request message to the central office node, where a new bandwidth requested by the bandwidth allocation request message is greater than or equal to a currently available maximum bandwidth of the standby terminal node, and is less than or equal to the The currently available maximum bandwidth of the primary terminal node and the standby terminal The currently available maximum bandwidth of the node, receiving a bandwidth allocation message sent by the central office node, where the bandwidth allocation message includes information about the new bandwidth.

16. 如权利要求 9 - 15任一所述的装置，其特征在于： 16. Apparatus according to any of claims 9 - 15 wherein:

所述无线端口处理单元，用于发送认证通知消息，所述认证通知消息包含所述备用终端节点的信息。 The radio port processing unit is configured to send an authentication notification message, where the authentication notification message includes information of the standby terminal node.

17. —种通信保护的***，其特征在于，包括： 17. A system for communication protection, characterized by comprising:

18. 如权利要求 17所述的***，其特征在于： 18. The system of claim 17 wherein:

所述局端节点向所述备用终端节点发送下行报文，所述下行报文包含所述备用终端节点的标识和包含所述交换数据标识的下行数据； The central office node sends a downlink packet to the standby terminal node, where the downlink packet includes an identifier of the standby terminal node and downlink data including the exchanged data identifier;

所述备用终端节点从所述有线端口接收所述下行报文，根据所述交换数据标识、所述无线通信地址、和所述无线端口的对应关系，转发所述下行数据到所述无线端口，并从所述无线端口向所述地址发送下行无线报文，所述下行无线报文包含所述下行数据。 The standby terminal node receives the downlink packet from the wired port, and forwards the downlink data to the wireless port according to the exchange data identifier, the wireless communication address, and the corresponding relationship of the wireless port, And sending, by the wireless port, a downlink wireless packet to the address, where the downlink wireless packet includes the downlink data.

19. 如权利要求 18所述的***，其特征在于： 19. The system of claim 18, wherein:

所述备用终端节点从所述上行无线报文中提取所述交换数据标识和所述无线通信地址，保存所述交换数据标识、所述无线端口、和所述无线通信地址的对应关系。 And the standby terminal node extracts the exchange data identifier and the wireless communication address from the uplink wireless packet, and saves a correspondence between the exchange data identifier, the wireless port, and the wireless communication address.

20. 如权利要求 18所述的***，其特征在于： 20. The system of claim 18, wherein:

所述主用终端节点向所述备用终端节点发送保护组创建请求报文，所述保护组创建请求报文包含所述交换数据标识、所述无线通信地址； The primary terminal node sends a protection group creation request message to the standby terminal node, where the protection The protection group creation request message includes the exchange data identifier and the wireless communication address;

所述备用终端节点从所述无线端口接收所述保护组创建请求报文；所述备用终端节点从所述保护组创建请求报文中提取所述交换数据标识和所述无线通信地址，保存所述交换数据标识、所述无线端口、和所述无线通信地址的对应关系。 The standby terminal node receives the protection group creation request message from the radio port; the standby terminal node extracts the exchange data identifier and the wireless communication address from the protection group creation request message, and the storage station Corresponding relationship between the exchange data identifier, the wireless port, and the wireless communication address.

21. 如权利要求 17 - 20任一所述的***，其特征在于： 21. A system according to any of claims 17-20, characterized in that:

所述主用终端节点向所述备用终端节点发送保护组倒换请求报文，所述保护组倒换请求报文包含所述主用终端节点的标识； The primary terminal node sends a protection group switching request message to the standby terminal node, where the protection group switching request message includes an identifier of the primary terminal node;

所述备用终端节点从所述无线端口接收所述保护组倒换请求报文；所述备用终端节点从所述有线端口向所述局端节点发送保护组倒换通知消息，所述保护组倒换通知消息包含所述主用终端节点的标识。 The standby terminal node receives the protection group switching request message from the wireless port; the standby terminal node sends a protection group switching notification message from the wired port to the central office node, and the protection group switching notification message Contains the identity of the primary terminal node.

22. 如权利要求 21所述的***，其特征在于： 22. The system of claim 21, wherein:

所述主用终端节点向所述备用终端节点发送保护组恢复请求报文，所述保护组恢复请求报文包含所述主用终端节点的标识； The primary terminal node sends a protection group recovery request message to the standby terminal node, where the protection group recovery request message includes an identifier of the primary terminal node;

所述备用终端节点从所述无线端口接收所述保护组恢复请求报文；所述备用终端节点从所述有线端口向所述局端节点发送恢复通知消息，所述恢复通知消息包含所述主用终端节点的标识。 The standby terminal node receives the protection group recovery request message from the wireless port; the standby terminal node sends a recovery notification message from the wired port to the central office node, where the recovery notification message includes the primary Use the identity of the endpoint.

23. 如权利要求 17 - 22任一所述的***，其特征在于： 23. A system according to any of claims 17-22, characterized in that:

所述备用终端节点向所述局端节点发送带宽分配请求消息，所述带宽分配请求消息所请求的新带宽大于等于所述备用终端节点的当前可用最大带宽，并且小于等于所述主用终端节点的当前可用最大带宽和所述备用终端节点的当前可用最大带宽； The standby terminal node sends a bandwidth allocation request message to the central office node, where the new bandwidth requested by the bandwidth allocation request message is greater than or equal to the currently available maximum bandwidth of the standby terminal node, and is less than or equal to the primary terminal node. The currently available maximum bandwidth and the currently available maximum bandwidth of the alternate terminal node;

所述备用终端节点接收所述局端节点发送的带宽分配消息，所述带宽分配消息包含所述新带宽的信息。 The standby terminal node receives a bandwidth allocation message sent by the central office node, where the bandwidth allocation message includes information about the new bandwidth.

24. 如权利要求 17 - 23任一所述的***，其特征在于： 24. A system according to any of claims 17-23, characterized in that:

所述备用终端节点从所述无线端口向所述主用终端节点发送认证通知消息，所述认证通知消息包含所述备用终端节点的信息。 The standby terminal node transmits an authentication notification message from the wireless port to the primary terminal node, and the authentication notification message includes information of the standby terminal node.