WO2014090194A1 - Procédé de composition de numéro de dispositif terminal, et dispositif d'accès - Google Patents

Procédé de composition de numéro de dispositif terminal, et dispositif d'accès Download PDF

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Publication number
WO2014090194A1
WO2014090194A1 PCT/CN2013/089424 CN2013089424W WO2014090194A1 WO 2014090194 A1 WO2014090194 A1 WO 2014090194A1 CN 2013089424 W CN2013089424 W CN 2013089424W WO 2014090194 A1 WO2014090194 A1 WO 2014090194A1
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WO
WIPO (PCT)
Prior art keywords
bras
mac address
terminal device
message
session
Prior art date
Application number
PCT/CN2013/089424
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English (en)
Chinese (zh)
Inventor
赵胜涛
薛俊杰
张成国
张少毅
李春梅
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2014090194A1 publication Critical patent/WO2014090194A1/fr

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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
    • H04L12/287—Remote access server, e.g. BRAS
    • H04L12/2872—Termination of subscriber connections
    • 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

Definitions

  • the present invention relates to communications technologies, and in particular, to a dialing method and an access device for a terminal device. Background technique
  • BRAS Broadband Remote Access Servers
  • PPPoE Point To Point Protocol Over Ethernet
  • the connection is established with the first responding BRAS, that is, the first responding BRAS is selected as the authentication server.
  • LCP Link Control Protocol
  • the present invention provides a dialing method and an access device for a terminal device, which are used to reduce service interruption time caused by offline failure due to BRAS failure or connection failure.
  • a first aspect of the present invention provides a method for dialing a terminal device, including:
  • the access device sends a probe packet to the network, obtains a media access control MAC address of the online broadband access server BRAS, and stores the obtained MAC address of the BRAS in the BRAS list; the access device is in the BRAS list.
  • the BRAS corresponding to the MAC address sends a handshake message to obtain the current state of the corresponding BRAS;
  • the access device acquires the MAC address of the BRAS in an offline state, from the MAC of the BRAS Obtaining, in the correspondence between the address and the MAC address of the terminal device and the session session ID, the MAC address and the Session ID of the terminal device belonging to the BRAS in the offline state;
  • the access device sends an offline notification message to the corresponding terminal device according to the obtained MAC address and the session ID of the terminal device, so that the corresponding terminal device performs dialing.
  • the access device sends a probe packet to the network, obtains a media access control MAC address of the online broadband access server BRAS, and saves the acquired MAC address of the BRAS.
  • BRAS list specifically:
  • the access device sends an Ethernet bearer point-to-point protocol PPPoE activation discovery start packet PADI message to the BRAS in the network;
  • the access device receives the PADO packet of the PPPoE activation discovery phase service packet of the BRAS, obtains the MAC address of the BRAS from the PADO message, and stores the acquired MAC address of the BRAS into the BRAS list.
  • the access device sends a probe packet to the network, and obtains a media access control MAC address of the online broadband access server BRAS, which is obtained.
  • the MAC address of the BRAS is saved in the BRAS list, including:
  • the access device sends an address resolution protocol ARP ⁇ message to the BRAS corresponding to the IP address according to the pre-configured BRAS IP address;
  • the access device receives the ARP response packet of the BRAS, obtains the MAC address of the BRAS corresponding to the IP address from the ARP response packet, and stores the obtained MAC address in the BRAS list.
  • the access device sends a probe packet to the network, and obtains a media access control MAC address of the online broadband access server BRAS, which is obtained by After the MAC address of the BRAS is saved in the BRAS list, the method further includes:
  • the access device monitors the dialing process of the terminal device to the BRAS, obtains the MAC address of the terminal device, the MAC address of the BRAS, and the session ID from the dialing process of the terminal device, and obtains the MAC address of the terminal device and the MAC address of the BRAS.
  • the address and the session ID form a correspondence relationship and are saved to the access device.
  • the access device monitors a dialing process of the terminal device to the BRAS, and the dialing process of the slave terminal device Obtain the MAC address of the terminal device, the MAC address of the BRAS, and the Session ID. Specifically include:
  • the access device receives the BRAS Ethernet bearer point-to-point protocol PPPoE activation discovery session acknowledgement packet PADS message;
  • the access device stores, in the PADS packet, a MAC address of the terminal device, a MAC address of the BRAS, and a session ID in a corresponding relationship on the access device.
  • a second aspect of the present invention provides an access device, including: a first transceiver, configured to send a probe packet to a network, obtain a media access control MAC address of an online broadband access server BRAS, and obtain a BRAS.
  • the MAC address is saved in the BRAS list;
  • a second transceiver configured to send a handshake message to the BRAS corresponding to the MAC address in the BRAS list, to obtain a current state of the corresponding BRAS;
  • a processor configured to obtain a MAC address of the BRAS in an offline state, and obtain a MAC address of the terminal device belonging to the offline BRAS from the correspondence between the MAC address of the BRAS and the MAC address of the terminal device and the session session ID Session ID;
  • a third transceiver configured to send a offline notification message to the corresponding terminal device according to the obtained MAC address and the session ID of the terminal device, so that the corresponding terminal device performs dialing;
  • a memory for storing the BRAS list.
  • the first transceiver specifically includes: a data transmitter, configured to send an Ethernet bearer point-to-point protocol PPPoE activation discovery start packet PADI to a BRAS in the network ;
  • the data receiver is configured to receive the PADO packet of the PPPoE activation discovery phase service packet of the BRAS, obtain the MAC address of the BRAS from the PADO packet, and store the obtained MAC address of the BRAS into the BRAS list.
  • the first transceiver specifically includes:
  • a data sender configured to send an address resolution protocol ARP ⁇ message to the BRAS corresponding to the IP address according to the pre-configured BRAS IP address;
  • the data receiver is configured to receive the ARP response packet of the BRAS, obtain the MAC address of the BRAS corresponding to the IP address from the ARP response packet, and store the obtained MAC address in the BRAS list.
  • the second transceiver is further configured to forward the packet of the terminal device to the BRAS dialing process; the processor is further configured to obtain the MAC address of the terminal device and the MAC address of the BRAS from the dialing process of the terminal device.
  • the address and the session ID are stored in the memory by the MAC address of the terminal device, the MAC address of the BRAS, and the session ID.
  • the access device is an optical line terminal OLT, and a digital subscriber line access complex A DSLAM or a multi-service access node MSAN.
  • a third aspect of the present invention provides a dialing system, including an access device, a terminal device, and a broadband access server BRAS, wherein the terminal device is connected to the BRAS through the access device, where
  • the access device is configured to send a probe packet to the network, obtain a media access control MAC address of the online BRAS, and save the acquired MAC address of the BRAS in the BRAS list; and the BRAS corresponding to the MAC address in the BRAS list Sending a handshake message to obtain the current state of the corresponding BRAS; obtaining the MAC address of the BRAS in the offline state, obtaining the attribution from the correspondence between the MAC address of the BRAS and the MAC address of the terminal device and the session session ID The MAC address and the session ID of the terminal device of the BRAS; and sending the offline notification message to the corresponding terminal device according to the obtained MAC address and the session ID of the terminal device;
  • the terminal device is configured to perform dialing after receiving the offline notification message of the access device.
  • the access device is further configured to monitor a dialing process of the terminal device to the BRAS, and obtain a MAC address of the terminal device and a MAC address of the BRAS from the dialing process of the terminal device. And the session ID, and the MAC address of the terminal device, the MAC address of the BRAS, and the session ID are associated with each other and saved to the access device.
  • the technical effect of the present invention is that the access device sends a probe packet to the network, obtains the MAC address of the online BRAS, and stores the acquired MAC address of the BRAS in the BRAS list, and the BRAS corresponding to the MAC address in the BRAS list. Send a handshake packet to obtain whether the corresponding BRAS is offline. After obtaining the MAC address of the BRAS in the offline state, obtain the attribution from the MAC address of the BRAS and the MAC address of the terminal device and the session ID.
  • the MAC address and the session ID of the terminal device of the offline BRAS are sent to the corresponding terminal device according to the obtained MAC address and the session ID of the terminal device, so as to make the corresponding end
  • the terminal device performs dialing.
  • the offline notification message is sent to the terminal device connected to the BRAS, so that the terminal device can automatically perform the dialing process again, thereby effectively reducing the number of times. Service interruption time caused by offline failure due to BRAS failure or connection failure.
  • FIG. 1 is a schematic structural diagram of a network to which a dialing method of a terminal device of the present invention is applied;
  • FIG. 2 is a flowchart of an embodiment of a dialing method of a terminal device according to the present invention
  • FIG. 3 is a flowchart of another embodiment of a dialing method of a terminal device according to the present invention.
  • FIG. 4 is a schematic structural diagram of an embodiment of an access device according to the present invention.
  • FIG. 5 is a schematic structural diagram of another embodiment of an access device according to the present invention.
  • the network includes a BRAS 11, an access node (Access Node; abbreviated as AN) 12, and a terminal device 13.
  • the BRAS 11 may have one or more interfaces, and each interface has a connection relationship with an AN 12.
  • the AN 12 can be connected to the interfaces of multiple BRASs 11, respectively.
  • the user equipment 13 is connected to only one AN 12 during the same online procedure.
  • the AN 12 may include a Digital Subscriber Line Access Multiplexer (DSLAM) or a Multi-Service Access Node (MSAN).
  • the user equipment 13 may include a PPPoE client device such as a home gateway, Modern, STB, or PC.
  • 2 is a flowchart of an embodiment of a dialing method of a terminal device according to the present invention.
  • the execution body of the embodiment is an access node, and the method is Includes:
  • Step 101 The access device sends a probe packet to the network, obtains a Media Access Control (MAC) address of the online BRAS, and saves the obtained MAC address of the BRAS in the BRAS list.
  • MAC Media Access Control
  • Step 102 The access device sends a handshake packet to the BRAS corresponding to the MAC address in the BRAS list, to obtain the current state of the corresponding BRAS.
  • the handshake may be performed to the BRAS corresponding to the MAC address of each BRAS in the BRAS list, that is, the handshake message is sent to the BRAS corresponding to the MAC address of each BRAS, to obtain a corresponding correspondence.
  • the first predetermined time may be configured according to actual conditions. For example, the first predetermined time may be 0.5 seconds, that is, every 0.5 seconds, a handshake "3 ⁇ 4 text" is sent to each BRAS.
  • an Access Node Control Protocol (ANCP), a Packet Internet Groper (PING), and an Address Resolution Protocol (ARP) may be used.
  • ANCP Access Node Control Protocol
  • PING Packet Internet Groper
  • ARP Address Resolution Protocol
  • broadcast PADI or unicast PADI mode respectively, handshake with the BRAS corresponding to the MAC address of each BRAS in the BRAS list.
  • Step 103 The access device acquires the MAC address of the BRAS in the offline state, and obtains the MAC address of the terminal device belonging to the BRAS in the offline state from the correspondence between the MAC address of the BRAS and the MAC address of the terminal device and the session session ID. And the Session ID.
  • the BRAS when the number of consecutive handshake timeouts with the BRAS is equal to a predetermined threshold, that is, the BRAS is offline, from the MAC address of the BRAS and the MAC address of the terminal device and the Session ID. Obtain the MAC address and Session ID of the terminal device belonging to the BRAS in the offline state.
  • the access device when the predetermined threshold is 3, the access device sends a handshake message to each BRAS in the BRAS list every first predetermined time, if not received within the time threshold.
  • the response message returned by a certain BRAS is regarded as a handshake timeout for the BRAS. If the BRAS has 3 consecutive handshake timeouts, the BRAS is considered to be offline (fault or connection failure).
  • Step 104 The access device sends an offline notification message to the corresponding terminal device according to the obtained MAC address and the session ID of the terminal device, so that the corresponding terminal device performs dialing.
  • the offline notification message is a PPPOE Active Discovery Terminal (PADT) message, or a PADX message, or a PADT message carrying an immediate redial identification.
  • PADX message generally refers to the PADT message, and uses a new code value to construct a new message with a specific meaning.
  • the terminal device After receiving the PADT packet, the terminal device will delay the dialing process for a few seconds. After receiving the PADX packet, the terminal device will perform the dialing process immediately, so the terminal device receives the PADX packet. After, no need Waiting can re-do the dialing process, and more effectively shorten the mid-business interruption time.
  • the access device sends a probe packet to the network, obtains the MAC address of the online BRAS, and stores the obtained MAC address of the BRAS in the BRAS list, and sends the BRAS to the BRAS corresponding to the MAC address in the BRAS list.
  • the handshake is performed, the current state of the corresponding BRAS is obtained, and after obtaining the MAC address of the BRAS in the offline state, the attribution is obtained from the correspondence between the MAC address of the BRAS and the MAC address of the terminal device and the session ID.
  • the MAC address and the session ID of the terminal device of the BRAS are sent to the corresponding terminal device according to the obtained MAC address and the session ID of the terminal device, so that the corresponding terminal device performs dialing, because it is determined whether the BRAS is online or not.
  • the offline notification message is sent to the terminal device connected to the BRAS, so that the terminal device can automatically perform the dialing process again, thereby effectively reducing the offline caused by the BRAS failure or the connection failure. Business interruption time.
  • FIG. 3 is a flowchart of another embodiment of the dialing method of the terminal device according to the present invention.
  • a specific implementation manner in step 101 is as follows:
  • Step 101 The access device sends a PPPOE Active Discovery Initiation (PADIE) to the BRAS in the network to send a PPPOE Active Discovery Initiation (PADI).
  • PADI PPPOE Active Discovery Initiation
  • Step 101b The access device receives a PPPOE Active Discovery Offer (PADO) packet of the BRAS, obtains the MAC address of the BRAS from the PADO packet, and stores the obtained MAC address of the BRAS. Go to the BRAS list.
  • PADO PPPOE Active Discovery Offer
  • the access device may send a PADI message to the BRAS in the network every second predetermined time.
  • the second predetermined time may be configured according to actual conditions, for example, the second predetermined time may be 10 seconds.
  • the receiving device sends a PADI message to the upstream direction (the PADI message is a broadcast message), and all received PADI BRASs respond to a PADO message.
  • the receiving device can The MAC address of the BRAS sent by the PADO message is obtained from the PADO message, thereby detecting which online BRASs are on the network.
  • the MAC address can be used as the unique identifier of the BRAS.
  • the method may further include:
  • Step 101c The access device monitors the dialing process of the terminal device to the BRAS, and the slave terminal sets The MAC address of the terminal device, the MAC address of the BRAS, and the session ID are obtained in the backup dialing process, and the MAC address of the terminal device, the MAC address of the BRAS, and the session ID are stored in the corresponding relationship.
  • step 101c is:
  • the access device receives the PPPoE Active Discovery Session-Confirmation (PADS) of the BRAS;
  • PADS PPPoE Active Discovery Session-Confirmation
  • the access device stores the MAC address of the terminal device in the PADS packet, the MAC address of the BRAS, and the session ID in a corresponding relationship on the access device.
  • the first responding BRAS is selected as an authentication server and connected thereto.
  • the AN can listen to the PPPOE Active Discovery Session-Confirmation (PADS) message returned by the authentication server to the terminal device, thereby recording the basic of the user.
  • PADS Active Discovery Session-Confirmation
  • the information that is, the MAC address of the terminal device and the session ID, establishes a mapping relationship between the MAC address of the terminal device and the session ID and the MAC address of the BRAS.
  • step 101 may also have another specific implementation as follows:
  • the access device sends an Address Resolution Protocol (ARP) packet to the BRAS corresponding to the IP address according to the pre-configured BRAS IP address;
  • ARP Address Resolution Protocol
  • the access device receives the ARP response packet of the BRAS, obtains the MAC address of the BRAS corresponding to the IP address from the ARP response packet, and stores the obtained MAC address in the BRAS list.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • the access device of this embodiment includes a first transceiver 21, a second transceiver 22, a processor 23, and a third transceiver. And a memory 25, wherein the first transceiver 21 is configured to send a probe message to the network, obtain a MAC address of the online BRAS, and save the acquired MAC address of the BRAS in the BRAS list; the second transceiver 22 is configured to: Sending a handshake message to the BRAS corresponding to the MAC address in the BRAS list to obtain the current state of the corresponding BRAS; the processor 23 is configured to acquire the BRAS in the offline state.
  • the MAC address, the MAC address of the terminal device belonging to the BRAS in the offline state is obtained from the MAC address of the BRAS and the MAC address of the terminal device and the session session ID, and the offline notification message is sent to the corresponding terminal device. So that the corresponding terminal device dials; the memory 25 is used to store the BRAS list.
  • the access device in this embodiment can perform the technical solution of the method embodiment shown in FIG. 2, and the implementation principle is similar, and details are not described herein again.
  • first transceiver 21, the second transceiver 22, and the third transceiver 24 may be the same transceiver or three independent transceivers.
  • the processor 23 can be a central processing unit (CPU) or the like.
  • the specific form of the memory 25 may be RAM, ROM, flash memory, or the like.
  • the transceiver when the access device is a DSLAM, the transceiver may be a joint transceiver; when the access device is an OLT, the transceiver may be an optical transceiver; when the access device is an MSAN,
  • the transceiver may be an Ethernet Switching Chip (LSW), a Field-Programmable Gate Array (FPGA), or a Network Processor (abbreviation: NP).
  • LSW Ethernet Switching Chip
  • FPGA Field-Programmable Gate Array
  • NP Network Processor
  • the access device sends a probe packet to the network, obtains the MAC address of the online BRAS, and stores the obtained MAC address of the BRAS in the BRAS list, and sends the BRAS to the BRAS corresponding to the MAC address in the BRAS list.
  • the handshake message is used to obtain whether the corresponding BRAS is offline.
  • the MAC address of the BRAS in the offline state is obtained, the MAC address of the BRAS and the MAC address of the terminal device of the BRAS and the session ID are obtained according to the acquired terminal device.
  • the MAC address and the session ID send the offline notification message to the corresponding terminal device, so that the corresponding terminal device performs dialing.
  • the BRAS Since the BRAS is found to be online, the BRAS is actively sent to the terminal device connected to the BRAS when the BRAS is offline.
  • the offline notification message enables the terminal device to automatically perform the dialing process again. Therefore, the service interruption time caused by the offline failure due to the BRAS failure or the connection failure is effectively reduced.
  • FIG. 5 is a schematic structural diagram of another embodiment of an access device according to the present invention.
  • the first transceiver 21 specifically includes: a data transmitter 211 and data. a receiver 212; wherein, the data transmitter 211 is configured to send a PADI message to the BRAS in the network; the data receiver 212 is configured to receive the PADO message of the BRAS, and obtain the PADO message from the PADO message.
  • the MAC address of the BRAS stores the acquired MAC address of the BRAS into the BRAS list.
  • the data transmitter 211 is configured to send an address resolution protocol ARP message to the BRAS corresponding to the IP address according to the IP address of the pre-configured BRAS; the data receiver 212 is configured to receive the BRAS.
  • the ARP response packet obtains the MAC address of the BRAS corresponding to the IP address from the ARP response packet, and stores the obtained MAC address in the BRAS list.
  • the second transceiver 22 is further configured to forward the packet of the terminal device to the BRAS dialing process
  • the processor 23 is further configured to obtain the MAC address of the terminal device, the MAC address of the BRAS, and the session ID from the dialing process of the terminal device, and save the correspondence between the MAC address of the acquiring terminal device, the MAC address of the BRAS, and the Session ID to In the memory 25.
  • the access device is an OLT, a DSLAM or an MSAN.
  • the invention also provides a dialing system, comprising: an access device, a terminal device, and a BRAS.
  • the terminal device is connected to the BRAS through the access device, where the access device is configured to send the probe packet to the network, obtain the media access control MAC address of the online BRAS, and save the obtained MAC address of the BRAS in the BRAS list.
  • the terminal device is configured to perform dialing after receiving the offline notification message of the access device.
  • the access device is further configured to monitor the dialing process of the terminal device to the BRAS, obtain the MAC address of the terminal device, the MAC address of the BRAS, and the session ID from the dialing process of the terminal device, and obtain the terminal device.
  • the MAC address, the MAC address of the BRAS, and the session ID are stored in the corresponding relationship and saved to the access device.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Small-Scale Networks (AREA)

Abstract

La présente invention concerne un procédé de composition de numéro d'un dispositif terminal et un dispositif d'accès. Le procédé comprend les étapes suivantes : un dispositif d'accès envoie un message de détection à un réseau, obtient une adresse de contrôle d'accès au support (MAC) d'un serveur à accès distant à large bande (BRAS) en ligne, et enregistre l'adresse MAC obtenue pour le BRAS dans une liste de BRAS ; envoie un message de prise de contact à un BRAS correspondant à une adresse MAC de la liste de BRAS, de façon à déterminer si le BRAS correspondant est dans un état hors ligne ; obtient une adresse MAC d'un BRAS dans un état hors ligne, puis obtient, à partir d'une relation de correspondance entre une adresse MAC d'un BRAS et une adresse MAC et un ID de session d'un dispositif terminal, une adresse MAC et un ID de session d'un dispositif terminal desservant le BRAS dans un état hors ligne ; et envoie un message de notification hors ligne à un dispositif terminal correspondant d'après l'adresse MAC et l'ID de session obtenus pour le dispositif terminal, de façon que le dispositif terminal correspondant effectue la composition de numéro.
PCT/CN2013/089424 2012-12-13 2013-12-13 Procédé de composition de numéro de dispositif terminal, et dispositif d'accès WO2014090194A1 (fr)

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CN112492089B (zh) * 2020-11-09 2022-05-24 普联技术有限公司 通信设备的拨号方法、系统和通信设备
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