WO2006122502A1 - A transmission method for message in layer 2 and an access device - Google Patents

A transmission method for message in layer 2 and an access device Download PDF

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Publication number
WO2006122502A1
WO2006122502A1 PCT/CN2006/001011 CN2006001011W WO2006122502A1 WO 2006122502 A1 WO2006122502 A1 WO 2006122502A1 CN 2006001011 W CN2006001011 W CN 2006001011W WO 2006122502 A1 WO2006122502 A1 WO 2006122502A1
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WO
WIPO (PCT)
Prior art keywords
packet
mac address
access device
feature information
user terminal
Prior art date
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PCT/CN2006/001011
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English (en)
French (fr)
Inventor
Haijun Wu
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to US11/596,491 priority Critical patent/US7978694B2/en
Priority to DE602006007766T priority patent/DE602006007766D1/de
Priority to ES06741899T priority patent/ES2326914T5/es
Priority to EP06741899A priority patent/EP1748603B2/en
Publication of WO2006122502A1 publication Critical patent/WO2006122502A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H04L12/2878—Access multiplexer, e.g. DSLAM
    • H04L12/2879—Access multiplexer, e.g. DSLAM characterised by the network type on the uplink side, i.e. towards the service provider network
    • H04L12/2881—IP/Ethernet DSLAM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type
    • H04L61/2503—Translation of Internet protocol [IP] addresses
    • H04L61/2514—Translation of Internet protocol [IP] addresses between local and global IP addresses
    • 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]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2858—Access network architectures
    • H04L12/2859—Point-to-point connection between the data network and the subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses

Definitions

  • the present invention relates to the field of network communication technologies, and in particular, to a Layer 2 packet transmission method applied between an access device and an aggregation layer device, and an access device for implementing Layer 2 packet transmission.
  • Ethernet interfaces are mostly used as uplink interfaces in broadband access networks.
  • Most of the aggregation networks are networks based on Layer 2 or Layer 3 switches.
  • the broadband access device is connected to the centralized broadband access server (BRAS) or router device through the aggregation network.
  • BRAS broadband access server
  • an Ethernet switch or aggregation device can access several or even dozens of broadband access devices, and each broadband access device can access up to several hundred user terminals. Therefore, a Layer 2 aggregate network access
  • the number of users can be up to tens of thousands.
  • Ethernet switches are based on media access control (MAC) addresses and virtual local area networks (VLANs). Currently, 4K, 8 ⁇ , 32 ⁇ , and 64 ⁇ Ethernet switches are used. It can be seen that an Ethernet switch can accommodate exchanges. The entries are limited.
  • each terminal has a Layer 2 MAC address, which makes the capacity of the VLAN and MAC address entries currently supported by the aggregation network. It is difficult to meet the requirements of business development.
  • a Layer 3 route may be used on a broadband access device such as a Digital Subscriber Line Access Multiplexer (DSLAM), that is, the broadband access device receives the user terminal.
  • DSLAM Digital Subscriber Line Access Multiplexer
  • the source Layer 2 MAC address in the packet is replaced with the Layer 3 interface MAC address of the broadband access device.
  • the packets from the broadband access device only carry the MAC address of the Layer 3 interface of the broadband access device.
  • the demand for MAC address translation entries for the aggregation layer device in the network is greatly reduced.
  • the broadband access device runs the Layer 3 protocol, the user must be assigned an IP address on the broadband access device, and there are many broadband access devices in the network. If each broadband access device must allocate a network segment.
  • the IP address to achieve the above purpose will result in a very fragmented IP address space, which in turn will greatly reduce the address utilization and is not conducive to network maintenance. Summary of the invention
  • the present invention provides a Layer 2 packet transmission method and an access device, so that the capacity of the VLAN and MAC address entries currently supported by the aggregation network can be satisfied by the IP address of the user. Development requirements.
  • a Layer 2 packet transmission method which pre-establishes the correspondence between the packet attribute information and the public MAC address, and configures the corresponding relationship on the access device, including:
  • the access device receives the packet sent by the user terminal, and finds a corresponding public MAC address in the corresponding relationship according to the attribute information of the packet, and replaces the source MAC address in the packet with the public MAC address, and Send the packet to the aggregation layer device.
  • the packet attribute information is a protocol type used by the packet, or a link type carrying the packet, or a user group type to which the user terminal that sends the packet belongs.
  • the access device After the access device finds the corresponding public MAC address, the access device further includes: the access device acquires the feature information of the packet, and establishes an index relationship between the packet feature information and the source MAC address of the packet.
  • the packet feature information is a source EP address or a session identifier or a destination IP address of the packet.
  • the method further includes: the access device receives the packet sent by the aggregation layer device, extracts the packet feature information from the packet, and finds the corresponding source MAC address in the index relationship according to the packet feature information. , replacing the destination MAC address in the packet with the source MAC address. And send the message to the user terminal.
  • Corresponding relationship of the MAC address, the corresponding relationship is configured on the access device, the method includes: the access device receives the packet without the feature information sent by the user terminal, according to the attribute information of the packet, Find the corresponding public MAC address in the corresponding relationship, to the public
  • the MAC address is used to replace the source MAC address in the packet, and the feature information of the packet is obtained, and the packet feature information is carried in the packet, and the packet is sent to the aggregation layer device. Index relationship of the source MAC address of the packet.
  • the packet feature information is user port information corresponding to the packet.
  • the user port information is: the frame information, the slot information, and the port number of the access device that receives the packet, or the source MAC address of the packet, or the frame information of the access device that receives the packet and The slot information and port number and the source MAC address of the message.
  • the message without the feature information is: the first message sent by the user terminal to support the Ethernet-based Point-to-Point Protocol (PPPoE) or Dynamic Configuration Host Protocol (DHCP).
  • PPPoE Point-to-Point Protocol
  • DHCP Dynamic Configuration Host Protocol
  • the access device When the packet that does not contain the feature information is the first packet that supports the PPPoE sent by the user terminal, the access device carries the packet feature information in the packet, including: carrying the packet feature information in the packet The instant relay agent field in the text.
  • the method further includes:
  • the aggregation layer device After receiving the packet sent by the access device, the aggregation layer device saves the packet feature information carried in the packet, and carries the packet feature information in the downlink packet before sending the downlink packet to the access device.
  • the access device After receiving the downlink packet, the access device extracts the packet feature information from the packet, and finds the extracted information according to the index relationship between the packet information of the packet and the source MAC address of the packet. The source MAC address corresponding to the packet feature information, the destination MAC address in the packet is replaced by the source MAC address, and the packet is sent to the corresponding user terminal.
  • An access device includes: The MAC address translation module receives the uplink packet sent by the user terminal, and finds the public MAC address corresponding to the packet according to the correspondence between the attribute information of the packet and the public MAC address, and replaces the uplink with the public MAC address.
  • the source MAC address in the text and then send the packet to the aggregation layer device.
  • the MAC address translation module is located in a hardware processing unit of the access device.
  • the access device further includes: a user terminal MAC address determining module, configured to receive a downlink packet sent by the aggregation layer device, and carry the feature information of the packet in the request for acquiring the MAC address of the user terminal, and send the message to the MAC address translation module. And replacing the destination MAC address in the downlink packet with the MAC address of the user terminal returned by the MAC address translation module, and sending the packet to the corresponding user terminal;
  • the MAC address translation module is further configured to: store an index relationship between the packet feature information and the source MAC address, and after obtaining the MAC address request of the user terminal that carries the packet feature information, find the corresponding in the index relationship.
  • the source MAC address is sent to the user terminal MAC address determining module as the user terminal MAC address.
  • the user terminal MAC address determining module is located in a hardware processing unit of the access device.
  • the access device further includes: an application layer MAC address translation module, located in a software processing unit of the access device, after receiving an uplink packet related to the application layer sent by the hardware processing unit of the access device, The MAC address translation module obtains the public MAC address of the packet, and replaces the source MAC address of the packet with the obtained public MAC address, and sends the packet to the forwarding module in the hardware processing unit of the access device.
  • the access device further includes: an application layer user terminal MAC address determining module located in a software processing unit of the access device, configured to receive a downlink packet related to an application layer sent by a hardware processing unit of the access device, according to The feature information of the packet is requested by the application layer MAC address translation module to the corresponding user terminal MAC address, and the destination MAC address in the downlink packet is replaced by the MAC address of the user terminal returned by the application layer MAC address translation module, and the packet is reported.
  • the text is sent to a forwarding module in a hardware processing unit of the access device;
  • the application layer MAC address translation module is further configured to: save an index relationship between the packet feature information and the source MAC address, and send the request to the application layer user terminal MAC address determining module according to the request of the application layer user terminal MAC address determining module.
  • the application layer MAC address conversion module further includes: a user port information obtaining module, configured to: after receiving the uplink message sent by the hardware processing unit, detecting that the message does not include the feature information, acquiring the User port information of the packet, and the user port information is used as the feature information of the packet.
  • a user port information obtaining module configured to: after receiving the uplink message sent by the hardware processing unit, detecting that the message does not include the feature information, acquiring the User port information of the packet, and the user port information is used as the feature information of the packet.
  • the present invention sets the correspondence between the packet attribute information and the public MAC address, and configures the corresponding relationship on the access device.
  • the access device receives the packet sent by the user terminal,
  • the i-information of the message finds a corresponding public MAC address in the corresponding relationship, replaces the source MAC address in the packet with the public MAC address, and then sends the packet to the aggregation layer device, which greatly reduces aggregation.
  • the capacity of the VLAN and MAC address entries required for MAC address translation, and the device does not need to access the device to assign IP addresses to users, which is beneficial to network maintenance.
  • Figure 1 is a schematic diagram of the structure of an Ethernet network
  • FIG. 3 is a flowchart of downlink Layer 2 packet transmission according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram 1 of an access device for implementing Layer 2 packet transmission according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an access device for implementing Layer 2 packet transmission according to an embodiment of the present invention.
  • Intent 2 is a schematic structural diagram of an access device for implementing Layer 2 packet transmission according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram 3 of an access device for implementing Layer 2 packet transmission according to an embodiment of the present invention. Mode for carrying out the invention
  • the core idea of the present invention is: The access device replaces the source MAC address of the packet of the same attribute with the same public MAC address, and then sends the packet to the aggregation layer device.
  • the Layer 2 packet transmission mentioned in the present invention specifically includes transmission processing for the uplink packet and the downlink packet, which will be separately described below.
  • FIG. 2 is a flowchart of an uplink Layer 2 packet transmission according to an embodiment of the present invention. As shown in FIG. 2, the specific steps are as follows:
  • Step 201 Configure a correspondence between the packet attribute information and the public MAC address on the access device in advance.
  • the packet attribute information can be the type of the protocol used by the packet, or the type of the link carrying the packet, such as the permanent virtual channel (PVC) type of the user terminal port, or the user to which the user terminal that sends the message belongs. Group type, and so on.
  • PVC permanent virtual channel
  • Step 202 The access device receives an Ethernet packet sent by the user terminal.
  • the Ethernet packet sent by the user terminal to the access device may be an Ethernet-based IP (IPoE) message or an Ethernet-based Point-to-Point Protocol (PPPoE) message.
  • IPoE Ethernet-based IP
  • PPPoE Point-to-Point Protocol
  • Step 203 The access device searches for the public MAC address corresponding to the Ethernet packet according to the attribute information of the Ethernet packet in the correspondence between the packet attribute information and the public MAC address.
  • the packet attribute information is the PVC type of the user terminal port that sends the packet
  • MAC address 1 can be used as the public MAC address
  • MAC address 2 can be used as the public MAC address
  • Step 204 The access device acquires feature information of the packet.
  • the feature information of the packet in this step must be unique information that distinguishes the packet from other packets.
  • the feature information may be extracted from the message.
  • the feature information of the message may be the source IP address or the session identifier (ID) or the destination IP address, for example: if the message is an IPoE report If the packet is a request packet, the source IP address of the packet can be extracted as the packet feature information. If the packet is a PPPoE packet, the PPPoE session identifier (ID) of the packet can be extracted. The source IP address is used as the packet feature information. If the packet is an ARP response packet, the destination IP address of the packet can be extracted as the packet feature information.
  • the user port information corresponding to the message can be used as the message.
  • the feature information, the user port information may be: the frame information, the slot information, and the port number of the access device that receives the packet, or the source MAC address of the packet, or: the access device that receives the packet The box information and slot information and port number, and the source MAC address of the packet.
  • the access device needs to add the user port information corresponding to the packet to the uplink packet. After the downlink device sends the downlink packet, the device adds the user port information to the downlink packet.
  • the user port information may be added to the Immediate Relay Agent field, so that the access device searches for the MAC address of the user terminal corresponding to the destination MAC address of the downlink packet according to the user port information.
  • Step 205 The access device establishes an index relationship between the feature information of the packet and the source MAC address of the packet.
  • Step 206 The access device replaces the source MAC address in the Ethernet packet with the found public MAC address, and sends the packet to the aggregation layer device.
  • the access device replaces the source MAC address of the packet with the same attribute from the user terminal with the same public MAC address, so that the MAC address translation entry to be established on the aggregation layer device is greatly reduced, thereby realizing The object of the invention.
  • FIG. 3 is a flowchart of downlink Layer 2 packet transmission according to an embodiment of the present invention. As shown in FIG. 3, the specific steps are as follows:
  • Step 301 The aggregation layer device sends a downlink packet to the access device.
  • the aggregation layer device may determine that the uplink packet is a packet that does not contain the feature information, and therefore, save the packet.
  • the feature information of the text is added to the downlink packet when the corresponding downlink packet is sent. For example, if the downlink packet is a PPPoE packet, the packet feature information may be added to the downlink packet.
  • Instant Relay Agent field the packet feature information may be added to the downlink packet.
  • Step 302 After receiving the downlink packet, the access device extracts the packet feature 'is information from the packet.
  • the packet feature information extracted in this step is the same as the packet feature information used in the MAC address translation process of the uplink packet.
  • the downlink packet feature information extracted by the access device should be the destination IP address of the packet.
  • the session ID of the packet is used as the packet feature information.
  • the downlink packet feature information extracted by the access device should also be the session ID of the packet. If the access device uses the destination IP address of the uplink packet as the packet.
  • the downlink packet feature information extracted by the access device should be the source IP address of the packet; if the access device uses the user port information of the uplink packet as the packet feature information, in this step, access device characteristic information extracted by the packet should be the same user port information packets, while the need to carry the user port information fields 1 ⁇ Gen remove paper from the downlink.
  • Step 3 According to the extracted packet feature information, the access device searches for the source MAC address corresponding to the packet feature information in the index relationship between the packet feature information and the source MAC address, that is, the packet is sent. The MAC address of the user terminal to go.
  • Step 304 The access device replaces the destination MAC address in the packet with the source MAC address that is found, and sends the packet to the user terminal corresponding to the source MAC address.
  • the access device can directly broadcast the message to the corresponding user terminal after receiving the packet.
  • FIG. 4 is a schematic structural diagram 1 of the access device provided by the present invention. As shown in FIG. 4, the access device includes:
  • the MAC address conversion module 41 is configured to save the correspondence between the message attribute information and the public MAC address, and after receiving the uplink message sent by the user terminal, according to the attribute information of the message and the corresponding relationship, find the The public MAC address corresponding to the packet, the source MAC address of the packet is replaced by the public MAC address, and then the packet is sent to the aggregation layer device, and the index relationship between the packet feature information and the source MAC address is saved.
  • the user terminal MAC address determining module 42 is configured to: after receiving the downlink message sent by the aggregation layer device, extract the report.
  • the feature information of the message is then sent to the MAC address translation module 41 in the request for acquiring the MAC address of the user terminal, and the destination MAC address in the downlink message is replaced by the MAC address of the user terminal returned by the MAC address translation module 41.
  • the address is then sent to the corresponding terminal.
  • the existing access device mainly includes a hardware processing unit and a software processing unit, wherein the hardware processing unit is mainly used for receiving, analyzing, processing, and forwarding the report sent by the user side and the network side.
  • the hardware processing unit is mainly used for receiving, analyzing, processing, and forwarding the report sent by the user side and the network side.
  • the MAC address translation module 41 and the user terminal MAC address determining module 42 provided in the embodiment of the present invention are disposed in the hardware processing unit.
  • the access device may further include: an application layer MAC address translation module 43 and an application layer user terminal MAC address determining module 44, where both modules are located in the access device software.
  • the processing unit is configured to perform Layer 2 MAC address translation processing on the packet related to the application layer, where:
  • the application layer MAC address translation module 43 is configured to: after receiving the uplink packet related to the application layer sent by the hardware processing unit, send the public MAC address request that carries the packet attribute information to the MAC address translation module 41, and then The source MAC address of the packet is replaced by the public MAC address returned by the MAC address translation module 41, and then the packet is sent to the forwarding module in the hardware processing unit of the access device, and the forwarding module sends the packet to the aggregation layer.
  • the device establishes an index relationship between the packet information and the source MAC address of the packet; after receiving the MAC address request of the user terminal that carries the packet feature information sent by the application layer user terminal MAC address determining module 44, The index relationship will be the source module 44 corresponding to the message feature information.
  • the application layer user terminal MAC address determining module 44 after receiving the downlink packet related to the application layer sent by the hardware processing unit of the access device, carrying the feature information in the packet in the application layer MAC address translation module The returned user terminal MAC address is replaced with the destination MAC address in the downlink packet, and then the packet is sent to the forwarding module in the hardware processing unit of the access device, and the forwarding module sends the downlink packet to the corresponding user terminal.
  • the application layer MAC address translation module 43 provided by the embodiment of the present invention further includes a user port information obtaining module 431, configured to receive a hardware processing list. After detecting the uplink packet sent by the UE, if it detects that the packet does not contain the feature information, it acquires the user port information of the packet from the hardware processing unit, and uses the user port information returned by the hardware processing unit as the The characteristic information of the message.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
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Description

二层 4艮文传输方法及接入设备 技术领域
本发明涉及网络通信技术领域， 尤其涉及一种应用在接入设备与汇 聚层设备之间的二层报文传输方法及一种实现二层报文传输的接入设 备。 发明背景
目前， 在宽带接入网络中大都采用以太网接口作为上行接口， 汇聚 网络大部分都为基于二层或三层交换机构建的网络。 如图 1所示， 用户 接入宽带接入设备后， 宽带接入设备通过汇聚网络连接到集中的宽带接 入服务器 （BRAS )或路由器设备上。 通常一台以太网交换机或汇聚设 备可以接入几台甚至几十台宽带接入设备， 而每台宽带接入设备可以接 入多达几百个用户终端， 因此， 一个二层汇聚网络接入的用户数可以高 达几万个。 而以太网交换机是基于媒体接入控制（MAC )地址和虚拟局 域网 （VLAN )进行交换， 目前通常采用 4K、 8Κ、 32Κ及 64Κ的以太网 交换机， 可见， 一台以太网交换机所能容纳的交换表项是有限的。
随着多业务的发起， 采用宽带接入的一个家庭中可能会有多个业务 终端， 每个终端具有一个二层 MAC地址， 这就使得汇聚网络目前可以支 持的 VLAN和 MAC地址表项的容量难以满足业务发展的要求。
为了使得汇聚层设备可以满足业务发展需要， 可以采用在数字用户 线接入复用器（DSLAM )等宽带接入设备上运行三层路由的方式， 即： 宽带接入设备在收到用户终端发来的二层报文后， 将该报文中的源二层 MAC地址替换为宽带接入设备的三层接口 MAC地址。 这样， 从宽带接 入设备上行的报文只会携带一个宽带接入设备的三层接口 MAC地址，使 得网络中针对汇聚层设备的 MAC地址转换表项需求大大降低。 但是， 宽 带接入设备运行三层协议之后， 必须在宽带接入设备上为用户分配 IP地 址， 而网络中的宽带接入设备非常多， 若每台宽带接入设备都必须分配 一个网段的 IP地址来实现上述目的， 则将导致 IP地址空间非常零散， 这 会进而使得地址利用率大大降低， 且不利于网絡维护。 发明内容
有鉴于此， 本发明提供二层报文传输方法及接入设备， 以实现不需 接入设备为用户分配 IP地址， 即可使得汇聚网络目前可以支持的 VLAN 和 MAC地址表项的容量满足业务发展要求。
本发明的技术方案是这样实现的：
一种二层报文传输方法，该方法预先建立报文属性信息与公用 MAC 地址的对应关系， 将该对应关系配置在接入设备上， 包括：
接入设备收到用户终端发来的报文， 根据该报文的属性信息， 在所 述对应关系中查找到对应的公用 MAC地址， 以该公用 MAC地址替换报 文中的源 MAC地址， 并将该报文发送到汇聚层设备。
所述报文属性信息为报文采用的协议类型， 或为承载报文的链路类 型， 或为发送报文的用户终端所属的用户群类型。
所述接入设备查找到对应的公用 MAC地址之后进一步包括： 接入设备获取报文的特征信息， 并建立该报文特征信息与该报文的 源 MAC地址的索引关系。
所述报文特征信息为报文的源 EP地址或会话标识或目的 IP地址。 所述方法进一步包括： 接入设备收到汇聚层设备发来的报文， 从该 报文中提取报文特征信息， 根据该报文特征信息在所述索引关系中查找 到对应的源 MAC地址， 以该源 MAC地址替换报文中的目的 MAC地址， 并将该报文发送到用户终端。
一种不含特征信息的二层报文传输方法 , 建立报文属性信息与公用
MAC地址的对应关系， 将该对应关系配置在接入设备上， 该方法包括： 接入设备收到用户终端发来的不含特征信息的报文， 根据该报文的 属性信息， 在所述对应关系中查找到对应的公用 MAC地址， 以该公用
MAC地址替换报文中的源 MAC地址， 同时获取该报文的特征信息， 将 该报文特征信息携带在报文中， 将该报文发送到汇聚层设备； 同时建立 该报文特征信息与报文的源 MAC地址的索引关系。
所述报文特征信息为该报文对应的用户端口信息。
所述用户端口信息为： 接收该报文的接入设备的框信息和槽信息和 端口号， 或为： 报文的源 MAC地址， 或为： 接收该报文的接入设备的框 信息和槽信息和端口号和 4艮文的源 MAC地址。
所述不含特征信息的报文为： 用户终端发出的第一个支持基于以太 网的点对点协议 ( PPPoE )或动态配置主机协议（DHCP ) 的报文。
当所述不含特征信息的报文为用户终端发出的第一个支持 PPPoE的 报文时， 所述接入设备将报文特征信息携带在报文中包括： 将报文特征 信息携带在报文的即时中继代理字段中。
所述方法进一步包括：
汇聚层设备收到接入设备发来的报文后， 保存该报文中携带的报文 特征信息， 并在向接入设备发送下行报文前， 将该报文特征信息携带在 下行报文中， 接入设备收到该下行报文后， 从该报文中提取所述报文特 征信息， 根据自身保存的报文特征信息与报文的源 MAC地址的索引关 系， 查找到该提取的报文特征信息对应的源 MAC地址， 以该源 MAC地 址替换报文中的目的 MAC地址， 并将该报文发送到对应的用户终端。
一种接入设备， 该接入设备包括： MAC地址转换模块，接收用户终端发来的上行报文，根据自身保存 的报文属性信息与公用 MAC地址的对应关系，查找到该报文对应的公用 MAC地址， 以该公用 MAC地址替换上行报文中的源 MAC地址， 然后将 报文发送到汇聚层设备。
所述 MAC地址转换模块位于接入设备的硬件处理单元中。
所述接入设备进一步包括： 用户终端 MAC地址确定模块， 用于接收 汇聚层设备发来的下行报文， 将该报文的特征信息携带在获取用户终端 MAC地址请求中发送给 MAC地址转换模块， 并以 MAC地址转换模块返 回的用户终端 MAC地址替换下行报文中的目的 MAC地址， 并将报文发 送到对应用户终端；
所述 MAC地址转换模块进一步用于， 保存报文特征信息与源 MAC 地址的索引关系 ,在收到携带报文特征信息的获取用户终端 MAC地址请 求后， 在所述索引关系中查找到对应的源 MAC地址， 将该源 MAC地址 作为用户终端 MAC地址发送到用户终端 MAC地址确定模块。
所述用户终端 MAC地址确定模块位于接入设备的硬件处理单元中。 所述接入设备进一步包括： 位于接入设备的软件处理单元中的应用 层 MAC地址转换模块，用于在收到接入设备的硬件处理单元发来的与应 用层相关的上行报文后， 向 MAC地址转换模块获取该报文的公用 MAC 地址， 以获取的公用 MAC地址替换报文的源 MAC地址， 将该报文发送 到接入设备的硬件处理单元中的转发模块。
所述接入设备进一步包括： 位于接入设备的软件处理单元中的应用 层用户终端 MAC地址确定模块，用于接收接入设备的硬件处理单元发来 的与应用层相关的下行报文，根据该报文的特征信息向应用层 MAC地址 转换模块请求对应的用户终端 MAC地址， 并以应用层 MAC地址转换模 块返回的用户终端 MAC地址替换下行报文中的目的 MAC地址， 并将报 文发送到接入设备的硬件处理单元中的转发模块；
所述应用层 MAC地址转换模块进一步用于，保存报文特征信息与源 MAC地址的索引关系， 根据应用层用户终端 MAC地址确定模块的请求 , 将与应用层用户终端 MAC地址确定模块发来的报文特征信息对应的源 MAC
模块。
所述应用层 MAC地址转换模块进一步包括： 用户端口信息获取模 块， 用于在收到硬件处理单元发来的上行报文后， 检测到该报文不包含 特征信息， 则向硬件处理单元获取该报文的用户端口信息， 将该用户端 口信息作为该报文的特征信息。
与现有技术相比，本发明通过建立报文属性信息与公用 MAC地址的 对应关系， 将该对应关系配置在接入设备上， 当接入设备收到用户终端 发来的报文后， 根据该报文的属 i信息， 在所述对应关系中查找到对应 的公用 MAC地址， 以该公用 MAC地址替换报文中的源 MAC地址， 然后 将报文发送给汇聚层设备，大大减少了汇聚层设备进行 MAC地址转换所 需的 VLAN和 MAC地址表项的容量，且不需接入设备为用户分配 IP地址， 有利于网絡维护。 附图简要说明
图 1为以太网组网结构示意图；
图 2为本发明实施例提供的上行二层报文传输流程图；
图 3为本发明实施例提供的下行二层报文传输流程图；
图 4为本发明实施例提供的实现二层报文传输的接入设备的结构示 意图一；
图 5为本发明实施例提供的实现二层报文传输的接入设备的结构示 意图二；
图 6为本发明实施例提供的实现二层报文传输的接入设备的结构示 意图三。 实施本发明的方式
本发明的核心思想是： 根据报文属性的不同， 接入设备将同种属性 的报文的源 MAC地址以同一个公用 MAC地址代替， 然后将该报文发送 给汇聚层设备。
下面结合附图及具体实施例对本发明再作进一步详细的说明。
本发明中提到的二层报文传输具体包括针对上行报文和下行报文 的传输处理， 下面将分别进行说明。
图 2是本发明实施例提供的上行二层报文传输流程图 , 如图 2所示， 其具体步骤如下：
步骤 201： 预先在接入设备上配置报文属性信息与公用 MAC地址的 对应关系。
报文属性信息可以为报文所采用的协议类型， 也可为承载报文的链 路类型如： 用户终端端口的永久虚通道（PVC )类型， 也可为发送艮文 的用户终端所属的用户群类型， 等等。
步骤 202: 接入设备接收用户终端发来的以太网报文。
用户终端发给接入设备的以太网报文可为基于以太网的 IP ( IPoE ) 报文或基于以太网的点对点协议 ( PPPoE )报文等。
步驟 203: 接入设备根据该以太网拫文的属性信息， 在自身配置的 报文属性信息与公用 MAC地址的对应关系中，查找该以太网报文对应的 公用 MAC地址。
例如： 当报文属性信息为发送报文的用户终端端口的 PVC类型时， 若报文来自用户终端端口的 PVC1时， 可采用 MAC地址 1作为公用 MAC 地址； 若报文来自用户终端端口的 PVC2时， 可采用 MAC地址 2作为公用 MAC地址； 等等。
步骤 204: 接入设备获取该报文的特征信息。
本步骤中的报文的特征信息必须为该报文区别于其它报文的唯一 性特征信息。
当报文本身含有特征信息时， 可从报文中提取该特征信息， 此时报 文的特征信息可为源 IP地址或会话标识（ID )或目的 IP地址等， 例如： 若报文为 IPoE报文或地址解析协议 ( A P )请求报文， 则可提取该报文 的源 IP地址作为报文特征信息； 若报文为 PPPoE报文， 则可提取该报文 的 PPPoE会话标识（ID )或源 IP地址作为报文特征信息； 若报文为 ARP 响应报文， 则可提取该报文的目的 IP地址作为报文特征信息。
当报文本身不含有特征信息时， 如： 用户终端发出的第一个 PPPoE 或 DHCP报文中都不含有特征信息， 此时， 则可将该报文对应的用户端 口信息作为该报文的特征信息， 用户端口信息可为： 接收该报文的接入 设备的框信息和槽信息和端口号， 或为： 该报文的源 MAC地址， 或为： 接收该报文的接入设备的框信息和槽信息和端口号和该报文的源 MAC 地址等。 接入设备需要将报文对应的用户端口信息添加到上行报文中， 此后汇聚层设备在发送下行报文时 , 将该用户端口信息添加到下行报文 中， 例如： 对于 PPPoE上、 下行 4艮文， 可将用户端口信息添加到即时中 继代理（Immediate Relay Agent )字段， 以便于接入设备根据该用户端 口信息查找到下行报文的目的 MAC地址所对应的用户终端 MAC地址。
步骤 205: 接入设备建立该报文的特征信息与报文的源 MAC地址的 索引关系。
该索引关系用于对下行^ =艮文的二层 MAC地址转换处理。 步骤 206: 接入设备将以太网报文中的源 MAC地址替换为查找到的 公用 MAC地址， 并将该报文发送给汇聚层设备。
可以看出： 由于接入设备将来自用户终端的具备同一属性的报文的 源 MAC地址都以同一个公用 MAC地址替换， 从而使得汇聚层设备需要 建立的 MAC地址转换表项大大减少， 从而实现了本发明的目的。
图 3是本发明实施例提供的下行二层报文传输流程图， 如图 3所示， 其具体步驟如下：
步骤 301 : 汇聚层设备向接入设备发送下行报文。
若汇聚层设备检测到接入设备发来的上行报文中含有专门的报文 特征信息字段， 则汇聚层设备可确定该上行报文为自身不含特征信息的 报文， 因此， 保存该报文的特征信息， 并在发送对应的下行报文时， 将 该报文特征信息添加到下行报文中如： 若下行报文为 PPPoE报文， 则可 将报文特征信息添加到下行报文的即时中继代理字段。
步骤 302: 接入设备收到下行报文后， 从该报文中提取出报文特征 'is息。
这里，本步骤提取的报文特征信息与在上行报文的 MAC地址转换过 程中采用的报文特征信息相同。 例如： 若接入设备采用上行报文的源 IP 地址作为报文特征信息， 则本步驟中， 接入设备提取的下行报文特征信 息应为报文的目的 IP地址； 若接入设备采用上行报文的会话 ID作为报文 特征信息， 则本步驟中， 接入设备提取的下行报文特征信息同样应为报 文的会话 ID;若接入设备采用上行报文的目的 IP地址作为报文特征信息， 则本步骤中， 接入设备提取的下行报文特征信息应为报文的源 IP地址； 若接入设备采用上行报文的用户端口信息作为报文特征信息， 则本步骤 中， 接入设备提取的报文特征信息同样应为报文的用户端口信息， 同时 需将携带该用户端口信息的字段从下行^ 1艮文中删除。 步骤 303: 根据提取的报文特征信息， 接入设备在自身保存的报文 特征信息与源 MAC地址的索引关系中， 查找该报文特征信息对应的源 MAC地址， 即： 该报文发往的用户终端的 MAC地址。
步骤 304: 接入设备将报文中的目的 MAC地址替换为所述查找到的 源 MAC地址， 并将报文发送到源 MAC地址对应的用户终端。
特殊地， 若下行报文为 ARP请求报文， 则接入设备收到该报文后， 直接该 4艮文广播给对应的用户终端即可。
可以看出： 经过图 3所示过程， 保证了经过 MAC地址转换处理的上 行报文所对应的下行报文可以准确地发送到用户终端。
基于本发明提供的方法， 本发明还提供了一种接入设备， 图 4是本 发明提供的接入设备的结构示意图一， 如图 4所示， 该接入设备包括：
MAC地址转换模块 41： 用于保存报文属性信息与公用 MAC地址的 对应关系， 在收到用户终端发来的上行报文后， 根据该报文的属性信息 以及所述对应关系，查找到该报文对应的公用 MAC地址，以该公用 MAC 地址替换报文中的源 MAC地址， 然后将报文发送到汇聚层设备， 同时保 存报文特征信息与源 MAC地址的索引关系； 在收到用户终端 MAC地址 确定模块 42发来的携带报文特征信息的获取用户终端 MAC地址请求后， 用户终端 MAC地址确定模块 42:用于在收到汇聚层设备发来的下行 报文后， 提取该报文的特征信息， 然后将该报文特征信息携带在获取用 户终端 MAC地址请求中发送给 MAC地址转换模块 41 , 并以 MAC地址转 换模块 41返回的用户终端 MAC地址替换下行报文中的目的 MAC地址， 然后将报文发送给对应的^户终端。
由于现有接入设备主要包括硬件处理单元和软件处理单元， 其中， 硬件处理单元主要用于接收、 分析处理和转发用户侧和网絡侧发来的报 文， 并控制报文属性信息的提取和报文的发送， 因此， 本发明实施例提 供的 MAC地址转换模块 41和用户终端 MAC地址确定模块 42设置在硬件 处理单元中。
进一步地， 如图 5所示， 本发明实施例提供的接入设备还可以包括： 应用层 MAC地址转换模块 43和应用层用户终端 MAC地址确定模块 44 , 该两模块都位于接入设备的软件处理单元中， 用于对与应用层相关的报 文进行二层 MAC地址转换处理， 其中：
应用层 MAC地址转换模块 43:用于在收到硬件处理单元发来的与应 用层相关的上行报文后，向 MAC地址转换模块 41发送携带该报文属性信 息的获取公用 MAC地址请求， 然后以 MAC地址转换模块 41返回的公用 MAC地址替换该报文的源 MAC地址， 然后将该报文发送到接入设备的 硬件处理单元中的转发模块， 由该转发模块将报文发送给汇聚层设备， 并建立该报文特征信息与报文的源 MAC地址的索引关系；在收到应用层 用户终端 MAC地址确定模块 44发来的携带报文特征信息的获取用户终 端 MAC地址请求后，根据所述索引关系将与所述报文特征信息对应的源 模块 44。
应用层用户终端 MAC地址确定模块 44:在收到接入设备的硬件处理 单元发来的与应用层相关的下行报文后， 将该报文中的特征信息携带在 以应用层 MAC地址转换模块 43返回的用户终端 MAC地址替换下行报文 中的目的 MAC地址，然后将报文发送到接入设备的硬件处理单元中的转 发模块， 由该转发模块将下行报文发送到对应的用户终端。
进一步地， 如图 6所示， 本发明实施例提供的应用层 MAC地址转换 模块 43还包括一个用户端口信息获取模块 431 , 用于在收到硬件处理单 元发来的与应用相关的上行报文后， 若检测到该报文不包含特征信息 , 则向硬件处理单元获取该报文的用户端口信息， 并将硬件处理单元返回 的用户端口信息作为该报文的特征信息。
以上所述仅为本发明的过程及方法实施例， 并不用以限制本发明， 凡在本发明的精神和原则之内所做的任何修改、 等同替换、 改进等， 均 应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种二层报文传输方法， 其特征在于， 建立报文属性信息与公 用媒体接入控制 MAC地址的对应关系， 将该对应关系配置在接入设备 上， 该方法包括：
接入设备收到用户终端发来的报文， 根据该报文的属性信息， 在所 述对应关系中查找到对应的公用 MAC地址， 以该公用 MAC地址替换报 文中的源 MAC地址， 并将该 4艮文发送到汇聚层设备。
2、 如权利要求 1所述的方法， 其特征在于， 所述报文属性信息为报 文采用的协议类型， 或为承载报文的链路类型， 或为发送报文的用户终 端所属的用户群类型。
3、 如权利要求 1所述的方法， 其特征在于， 所述接入设备查找到对 应的公用 MAC地址之后进一步包括：
接入设备获取报文的特征信息， 并建立该报文特征信息与该报文的 源 MAC地址的索引关系。
4、 如权利要求 3所述的方法， 其特征在于， 所述报文特征信息为报 文的源 IP地址或会话标识或目的 IP地址。
5、 如权利要求 4所述的方法， 其特征在于， 所述方法进一步包括： 接入设备收到汇聚层设备发来的报文， 从该报文中提取报文特征信息， 根据该报文特征信息在所述索引关系中查找到对应的源 MAC地址，以该 源 MAC地址替换报文中的目的 MAC地址， 并将该报文发送到用户终端。
6、 一种不含特征信息的二层报文传输方法， 其特征在于， 建立报 文属性信息与公用 MAC地址的对应关系 ,将该对应关系配置在接入设备 上， 该方法包括：
接入设备收到用户终端发来的不含特征信息的报文， 根据该报文的 属性信息， 在所述对应关系中查找到对应的公用 MAC地址， 以该公用 MAC地址替换报文中的源 MAC地址， 同时获取该报文的特征信息， 将 该报文特征信息携带在报文中， 将该报文发送到汇聚层设备； 同时建立 该报文特征信息与报文的源 MAC地址的索引关系。
7、 如权利要求 6所述的方法， 其特征在于， 所述报文特征信息为该 艮文对应的用户端口信息。
8、 如权利要求 7所述的方法， 其特征在于， 所述用户端口信息为： 接收该报文的接入设备的框信息和槽信息和端口号， 或为： 报文的源 MAC地址， 或为： 接收该报文的接入设备的框信息和槽信息和端口号和 报文的源 MAC地址。
9、 如权利要求 6、 7、 8中任一项所述的方法， 其特征在于， 所述不 含特征信息的报文为： 用户终端发出的第一个支持基于以太网的点对点 协议 PPPoE或动态配置主机协议 DHCP的报文。
10、 如权利要求 9所述的方法， 其特征在于， 当所述不含特征信息 的报文为用户终端发出的第一个支持 PPPoE的报文时， 所述接入设备将 报文特征信息携带在报文中包括： 将报文特征信息携带在报文的即时中 继代理字段中。
11、 如权利要求 6、 7、 8中任一项所述的方法， 其特征在于， 所述 方法进一步包括：
汇聚层设备收到接入设备发来的报文后， 保存该报文中携带的报文 特征信息， 并在向接入设备发送下行报文前， 将该报文特征信息携带在 下行报文中， 接入设备收到该下行报文后， 从该报文中提取所述报文特 征信息， 根据自身保存的报文特征信息与报文的源 MAC地址的索引关 系， 查找到该提取的报文特征信息对应的源 MAC地址， 以该源 MAC地 址替换报文中的目的 MAC地址， 并将该报文发送到对应的用户终端。
12、 一种接入设备， 其特征在于， 该接入设备包括：
MAC地址转换模块，接收用户终端发来的上行 4艮文，根据自身保存 的报文属性信息与公用 MAC地址的对应关系，查找到该报文对应的公用 MAC地址， 以该公用 MAC地址替换上行报文中的源 MAC地址， 然后将 报文发送到汇聚层设备。
13、 如权利要求 12所述的接入设备， 其特征在于， 所述 MAC地址转 换模块位于接入设备的硬件处理单元中。
14、 如权利要求 12所述的接入设备， 其特征在于， 所述接入设备进 一步包括： 用户终端 MAC地址确定模块， 用于接收汇聚层设备发来的下 行报文，将该报文的特征信息携带在获取用户终端 MAC地址请求中发送 给 MAC地址转换模块 , 并以 MAC地址转换模块返回的用户终端 MAC地 址替换下行报文中的目的 MAC地址， 并将报文发送到对应用户终端； 所述 MAC地址转换模块进一步用于， 保存报文特征信息与源 MAC 地址的索引关系，在收到携带报文特征信息的获取用户终端 MAC地址倩 求后， 在所述索引关系中查找到对应的源 MAC地址， 将该源 MAC地址 作为用户终端 MAC地址发送到用户终端 MAC地址确定模块。
15、如权利要求 14所述的接入设备，其特征在于，所述用户终端 MAC 地址确定模块位于接入设备的硬件处理单元中。
16、 如权利要求 12至 15中任一项所述的接入设备， 其特征在于， 所 述接入设备进一步包括：位于接入设备的软件处理单元中的应用层 MAC 地址转换模块， 用于在收到接入设备的硬件处理单元发来的与应用层相 关的上行报文后 , 向 MAC地址转换模块获取该报文的公用 MAC地址， 以获取的公用 MAC地址替换报文的源 MAC地址， 将该报文发送到接入 设备的硬件处理单元中的转发模块。
17、 如权利要求 16所述的接入设备， 其特征在于， 所述接入设备进 一步包括：位于接入设备的软件处理单元中的应用层用户终端 MAC地址 确定模块， 用于接收接入设备的硬件处理单元发来的与应用层相关的下 行报文，根据该报文的特征信息向应用层 MAC地址转换模块请求对应的 用户终端 MAC地址， 并以应用层 MAC地址转换模块返回的用户终端 MAC地址替换下行报文中的目的 MAC地址， 并将报文发送到接入设备 的硬件处理单元中的转发模块；
所述应用层 MAC地址转换模块进一步用于，保存报文特征信息与源 MAC地址的索引关系， 根据应用层用户终端 MAC地址确定模块的请求， 将与应用层用户终端 MAC地址确定模块发来的报文特征信息对应的源 MAC
模块。
18、 如权利要求 16所述的接入设备， 其特征在于， 所述应用层 MAC 地址转换模块进一步包括： 用户端口信息获取模块， 用于在收到硬件处 理单元发来的上行报文后， 检测到该报文不包含特征信息， 则向硬件处 理单元获取该报文的用户端口信息， 将该用户端口信息作为该报文的特 征信息。
PCT/CN2006/001011 2005-05-17 2006-05-17 A transmission method for message in layer 2 and an access device Ceased WO2006122502A1 (en)

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ES06741899T ES2326914T5 (es) 2005-05-17 2006-05-17 Procedimiento para la transmisión de mensaje en capa 2,y dispositivo de acceso
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074369A1 (en) 2006-12-21 2008-06-26 Telefonaktiebolaget Lm Ericsson (Publ) Network apparatus and method for translating media access control addresses

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101309202A (zh) * 2007-05-18 2008-11-19 华为技术有限公司 标识用户的方法及系统、中继设备
US20080285557A1 (en) * 2007-05-18 2008-11-20 Huawei Technologies Co., Ltd. Method, System and Relay Device for Transmitting Packet
EP2210371A4 (en) * 2007-11-14 2011-10-05 Ericsson Telefon Ab L M METHOD FOR REDUCING MEMORY CAPACITY REQUIRED OF SWITCHES USING MAC ADDRESSES FICTIVE SOURCES
CN101252530B (zh) * 2008-03-28 2010-09-29 中兴通讯股份有限公司 报文转发方法、系统以及交换设备
CN101741921B (zh) * 2008-11-26 2012-11-14 中兴通讯股份有限公司 Mac地址处理方法和装置
CN101909257B (zh) * 2009-06-04 2013-08-21 中兴通讯股份有限公司 M2m平台实现多种承载协议并发接入的方法及系统
CN102647768B (zh) * 2011-02-18 2014-06-18 电信科学技术研究院 基于lte-lan的报文转发方法及装置
CN102594690B (zh) * 2012-02-23 2014-05-28 重庆广用通信技术有限责任公司 多路以太网和PPPoE网络混合传输通道中的地址借用方法
US10103980B1 (en) * 2012-03-14 2018-10-16 Juniper Networks, Inc. Methods and apparatus for maintaining an integrated routing and bridging interface
CN112787932B (zh) * 2019-11-05 2022-09-02 华为技术有限公司 一种用于生成转发信息的方法、装置和系统
CN113726658B (zh) * 2021-08-09 2022-10-18 中国联合网络通信集团有限公司 一种路由转发方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030092259A (ko) * 2002-05-29 2003-12-06 랜보이스 주식회사 맥 어드레스 변환 이더넷 스위칭 기능을 내장한 가입자용인터넷 접속 장비인 가입자 관문 스위치 및 그와 상호작용하는 단지 통신 관리 서버를 이용한, 구내 랜 안의상호 독립적 복수 소형가입자에게 구내 랜을 통하여인터넷 접속 서비스를 제공하는 환경에서 가입자 식별강화와 망 보안 강화를 구현하는 시스템
CN1486037A (zh) * 2003-08-29 2004-03-31 北京港湾网络有限公司 使用以太网承载点对点协议代理服务器的方法及系统
CN1545265A (zh) * 2003-11-25 2004-11-10 港湾网络有限公司 数字用户线接入服务器设备实现虚拟媒体访问控制地址的方法
CN1585346A (zh) * 2004-05-28 2005-02-23 南京邮电学院 一种实现诱骗网络数据流重定向的方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3483900B2 (ja) 1992-07-08 2004-01-06 株式会社日立製作所 同報通信方法
US5909441A (en) 1997-04-11 1999-06-01 International Business Machines Corporation Apparatus and method for reducing frame loss in route switched networks
US6172981B1 (en) 1997-10-30 2001-01-09 International Business Machines Corporation Method and system for distributing network routing functions to local area network stations
JP3532093B2 (ja) * 1998-03-09 2004-05-31 富士通株式会社 ルータ障害における配下ｌａｎの救済機能を有するルータネットワーク
US6434627B1 (en) * 1999-03-15 2002-08-13 Cisco Technology, Inc. IP network for accomodating mobile users with incompatible network addressing
EP1330721A4 (en) * 2000-08-24 2009-08-19 2Wire Inc SYSTEM AND METHOD FOR SELECTIVELY BRIDGING AND ROUTING DATA PACKAGES BETWEEN MULTIPLE NETWORKS
US6971044B2 (en) 2001-04-20 2005-11-29 Egenera, Inc. Service clusters and method in a processing system with failover capability
CA2444066A1 (en) 2001-04-20 2002-10-31 Egenera, Inc. Virtual networking system and method in a processing system
US7249194B2 (en) * 2002-02-08 2007-07-24 Matsushita Electric Industrial Co., Ltd. Gateway apparatus and its controlling method
JP2003258911A (ja) * 2002-03-06 2003-09-12 Hitachi Ltd アクセスノード装置およびインターネット利用状況の分析方法
US7457300B2 (en) 2003-01-21 2008-11-25 Telefonaktiebolaget L M Ericsson (Publ) Ethernet address management system
ATE368337T1 (de) 2003-06-25 2007-08-15 Alcatel Lucent Verfahren und einrichtung zur ethernet-mac- adressumsetzung in ethernet-zugangsnetzwerken
US7631100B2 (en) 2003-10-07 2009-12-08 Microsoft Corporation Supporting point-to-point intracluster communications between replicated cluster nodes
US7382778B2 (en) * 2004-01-05 2008-06-03 Tropos Networks, Inc. Link layer emulation
CN100388723C (zh) 2004-07-23 2008-05-14 中兴通讯股份有限公司 一种实现宽带用户反查的方法
US7760720B2 (en) * 2004-11-09 2010-07-20 Cisco Technology, Inc. Translating native medium access control (MAC) addresses to hierarchical MAC addresses and their use
US7483996B2 (en) 2004-11-29 2009-01-27 Cisco Technology, Inc. Techniques for migrating a point to point protocol to a protocol for an access network
GB2426160A (en) 2005-05-09 2006-11-15 3Com Corp Testing in large networks, using mapping of layer-3 addresses
US20070076709A1 (en) 2005-07-01 2007-04-05 Geoffrey Mattson Apparatus and method for facilitating a virtual private local area network service with realm specific addresses
GB0608881D0 (en) 2006-05-05 2006-06-14 Nortel Networks Ltd Interworking point to point protocol for digital subscriber line access with ethernet connections in the aggregation network
US7616635B2 (en) 2006-09-29 2009-11-10 Intel Corporation Address mapping for data packet routing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030092259A (ko) * 2002-05-29 2003-12-06 랜보이스 주식회사 맥 어드레스 변환 이더넷 스위칭 기능을 내장한 가입자용인터넷 접속 장비인 가입자 관문 스위치 및 그와 상호작용하는 단지 통신 관리 서버를 이용한, 구내 랜 안의상호 독립적 복수 소형가입자에게 구내 랜을 통하여인터넷 접속 서비스를 제공하는 환경에서 가입자 식별강화와 망 보안 강화를 구현하는 시스템
CN1486037A (zh) * 2003-08-29 2004-03-31 北京港湾网络有限公司 使用以太网承载点对点协议代理服务器的方法及系统
CN1545265A (zh) * 2003-11-25 2004-11-10 港湾网络有限公司 数字用户线接入服务器设备实现虚拟媒体访问控制地址的方法
CN1585346A (zh) * 2004-05-28 2005-02-23 南京邮电学院 一种实现诱骗网络数据流重定向的方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1748603A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074369A1 (en) 2006-12-21 2008-06-26 Telefonaktiebolaget Lm Ericsson (Publ) Network apparatus and method for translating media access control addresses

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