WO2009109141A1 - Procédé, appareil et système de détection de l'activité d'une session ipv6 - Google Patents

Procédé, appareil et système de détection de l'activité d'une session ipv6 Download PDF

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Publication number
WO2009109141A1
WO2009109141A1 PCT/CN2009/070663 CN2009070663W WO2009109141A1 WO 2009109141 A1 WO2009109141 A1 WO 2009109141A1 CN 2009070663 W CN2009070663 W CN 2009070663W WO 2009109141 A1 WO2009109141 A1 WO 2009109141A1
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WO
WIPO (PCT)
Prior art keywords
message
ipv6
network side
access network
side device
Prior art date
Application number
PCT/CN2009/070663
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English (en)
Chinese (zh)
Inventor
郑若滨
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2009109141A1 publication Critical patent/WO2009109141A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/167—Adaptation for transition between two IP versions, e.g. between IPv4 and IPv6
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management

Definitions

  • the present invention relates to the field of electronic communication technologies, and in particular, to a method, device and system for detecting an IPv6 session.
  • IP session IP
  • IP Session represents a network access connection session associated with the IP address of a Subscriber or User.
  • IP Session and PPP Session Point-to-Point Protocol
  • Session point-to-point protocol session
  • Subscriber
  • Session is a general term for IP sessions and PPP sessions.
  • PPP session uses a unique PPP survival detection mechanism
  • IPv4 (fourth version of the network layer protocol) session uses a unique BFD (Bidirectional Forwarding Detection) or ARP (Address Resolution).
  • BFD Bidirectional Forwarding Detection
  • ARP Address Resolution
  • IP sessions are usually at IP Edge
  • IP edge device terminates, that is, the IP session is a session connection established between the user terminal and the IP edge device. IP sessions are used by the network to manage user access networks, such as billing, status, and so on.
  • the network architecture can only support IPv4, but with the exhaustion of IPv4 addresses, the evolution of DSL network architecture to IPv6 (the sixth version of the network layer protocol) has become an inevitable trend.
  • IPv6 the sixth version of the network layer protocol
  • the prior art IP session only supports the IPv4 survival detection mechanism and cannot support the survival detection of the IPv6 session.
  • the embodiments of the present invention can support the survival detection of an IPv6 session.
  • An embodiment of the present invention provides a method for detecting an IPv6 session, which includes:
  • the access network side device sends a neighbor request NS message to the user equipment UE or UE to send an NS message to the access network side device;
  • An embodiment of the present invention provides an access network side device, where the access network side device includes:
  • the ND function is used for the proxy destination node to perform information exchange with the source node for performing the IPv6 session survival detection.
  • the destination node includes:
  • the node where the ND function accesses the network side device itself.
  • An embodiment of the present invention provides a survival detection system for an IPv6 session, where the system includes:
  • the access network side device includes a neighbor discovery proxy function entity, and is configured to support a Prox y ND function;
  • the ND function is used to perform proxy information exchange with the source node.
  • the destination node includes:
  • the node where the ND function accesses the network side device itself
  • UE configured to perform information interaction with the access network device, to perform the UE and the supporting Proxy
  • the embodiment of the present invention supports Proxy ND (Proxy Neighbor Discovery) on the access network side device.
  • the ND process serves as a survival detection mechanism for IPv6 sessions and supports the survival detection of IPv6 sessions.
  • FIG. 1 is a flow chart of a method in accordance with an embodiment of the present invention.
  • FIG. 2 is a flow chart of a method of another embodiment of the present invention.
  • Figure 3 is a flow chart of a method of another embodiment of the present invention.
  • FIG. 4 is a flow chart of a method of another embodiment of the present invention.
  • Figure 5 is a flow chart of a method of another embodiment of the present invention.
  • FIG. 6 is a flow chart of a method of another embodiment of the present invention.
  • Figure 7 is a flow chart of a method of another embodiment of the present invention.
  • FIG. 9 is a flow chart of a method of another embodiment of the present invention.
  • Figure 10 is a flow chart of a method of another embodiment of the present invention.
  • the proxy network side device is configured to support Proxy ND (Proxy Neighbor).
  • the access network side device of the ND function performs information exchange with the user equipment UE to perform the survival detection of the IPv6 session between the UE and the access network side device supporting the Proxy ND function.
  • the access network side device supporting the Proxy ND function is used by the proxy destination node to perform information interaction with the source node.
  • the destination node includes:
  • the ND function is a node where the access network side device itself is located.
  • the source node includes: the UE or a node where the access network side device itself supporting the Pr oxy ND function is located.
  • the access network side device of the ND function is used by the proxy destination node to reply the NS (neighbor request) initiated by the source node through the NA (neighbor advertisement) message with the MAC (address used on the medium access layer) address used by the proxy. Message; or, the support Proxy
  • the access network side device of the ND function is used by the proxy destination node to initiate an NS message to the source node, receive the NA reply of the source node, and obtain the MAC address of the source node.
  • the source node is the node where the subscriber of the IPv6 session is located or IPv6 RG (User Gateway) or IPv6 AN (access point) or IP edge node, the destination node can be the IP edge node itself or another user.
  • IPv6 RG User Gateway
  • IPv6 AN access point
  • IP edge node the destination node can be the IP edge node itself or another user.
  • An embodiment of the present invention is a method for detecting the survival of an IPv6 session.
  • the IPv6 session is in the IPv6 BNG (IPv6 Broadband Network Gateway). IPv6 Broadband Network Gateway) or IPv6 BRAS (IPv6 Broadband Remote Access Server, IPv6)
  • IPv6 BNG IPv6 Broadband Network Gateway
  • IPv6 BRAS IPv6 Broadband Remote Access Server, IPv6
  • the broadband access server terminates, starting with an IPv6 subscriber, and the IPv6 subscriber is a user gateway or user gateway connected user (in Figure 1 with UE (User
  • IPb is the IPv6 address of the IPv6 broadband network gateway or broadband access server or the IPv6 address of the user under the IPv6 broadband network gateway or broadband access server.
  • the IPv6 broadband network gateway or the broadband access server supports the proxy according to the embodiment of the present invention.
  • Step 1 The user gateway or the user connected to the user gateway initiates an NS message requesting the IPv6 address (such as IPb) contained in the NS message. Corresponding MAC address;
  • the user gateway and the access point transit the NS message;
  • the NS message may be sent in a unicast manner or may be sent in a broadcast manner;
  • Step 4. Proxy set on IPv6 broadband network gateway or broadband access server
  • ND function entity proxy The node where the IPb is located recovers the received NS message through the NA message with its own MAC address (MACb);
  • Step 5-6 The access point and the user gateway relay the NA message, and finally reach the user, and the user can confirm that the IPv6 session is alive.
  • the above process can be performed periodically to periodically detect the survival of IPv6 sessions.
  • Another embodiment of the present invention is a method for detecting the survival of an IPv6 session, as shown in FIG. 2, which is IPv.
  • the embodiment of the present invention supports the Proxy ND function on the IPv6 broadband network gateway or the broadband access server.
  • Figure 2 is an IPv6 broadband network gateway or broadband access server to initiate IPv6 session survival detection.
  • IPa is the IPv6 of the user to be detected by the IPv6 broadband network gateway or broadband access server.
  • Step 1 3 The IPv6 broadband network gateway or the broadband access server initiates an NS message requesting a MAC address corresponding to an IPv6 address (such as IPa) included in the NS message;
  • IPv6 address such as IPa
  • the user gateway and the access point transit the NS message;
  • the NS message may be sent by using a unicast method, or may be sent by using a broadcast method;
  • Step 4 The user replies to the received NS message by using the NA message with its own MAC address (MACa).
  • Step 5 - 6 The access point and the user gateway transit the NA message, and the NA message finally arrives at the IPv6 broadband network gateway or the broadband access server, and the IPv6 broadband network gateway or the broadband access server can thereby confirm the IPv6.
  • the session is alive.
  • the above process can be performed periodically to periodically detect the survival of an IPv6 session.
  • Another embodiment of the present invention is a method for detecting the survival of an IPv6 session.
  • the NS is initiated by a user.
  • the proxy is supported on the IPv6 broadband network gateway or the broadband access server on the access network side.
  • the Proxy ND function can be further supported on the IPv6 user gateway (as shown in Figure 3) or the IPv6 access point (as shown in Figure 4), so that the IPv6
  • the user gateway or IPv6 access point replies to the user with their own MAC address.
  • the process of detecting the survival of an IPv6 session shown in Figure 3 is as follows:
  • Steps: 1 The user connected to the user gateway initiates an NS message requesting a MAC address corresponding to an IPv6 address (such as an IPb) included in the NS message;
  • an IPv6 address such as an IPb
  • the NS message can be sent by unicast or by broadcast;
  • Steps: 2-3 The NS message initiated by the user connected to the user gateway triggers the user gateway to initiate an NS message to the IPv6 broadband network gateway or the broadband access server, and the NS message initiated by the user gateway reaches the access point through the access point.
  • Pv6 broadband network gateway or broadband access server
  • ND function entity proxy The node where the IPb is located recovers the received NS message through the NA message with its own MAC address (MACb);
  • the access point relays the NA message, and the NA message arrives at the user gateway, and the user gateway can confirm I Pv6 broadband network gateway or broadband access server is reachable;
  • the user gateway proxy The IPB node replies to the received NS message through the NA message with its own MAC address (MACr); the user can thus confirm that the IPv6 session is alive.
  • MACr MAC address
  • the IPv4 session survival detection process shown in FIG. 4 is different from the process shown in FIG. 3 in that: after receiving an NS message, the access point initiates an NS message; and receives an IPv6 broadband network gateway or a broadband access server.
  • the node that the IPB is located replies to the received NS message through the NA message with its own MAC address (MACd).
  • Another embodiment of the present invention is a method for detecting an IPv6 session, as shown in FIG. 5 and FIG. 6, which is a case where an NS is initiated by a user.
  • the IPv6 in addition to supporting the Proxy ND on the IPv6 broadband network gateway or the broadband access server on the access network side, the IPv6 can be further extended in IPv6.
  • Proxy is supported on the user gateway (as shown in Figure 5) or on the IPv6 access point (shown in Figure 6).
  • Figure 5 differs from Figure 3 in that the IPv6 session survival detection uses segmentation detection, which is divided into Subscriber to I Pv6.
  • the user gateway segment and the IPv6 user gateway to another segment of the IPv6 broadband network gateway or broadband access server.
  • the process of detecting the survival of an IPv6 session shown in Figure 5 is as follows:
  • Step 1 Proxy in the user gateway
  • the ND function entity initiates an NS message requesting a MAC address corresponding to an IPv6 address (such as an IPb) included in the NS message;
  • the access point transits the NS message; the NS message may be sent in a unicast manner, or may be sent in a broadcast manner;
  • the node where the ND proxy IPb is located uses its own MAC address (MACb) to reply to the received NS message through the NA message.
  • MACb MAC address
  • Step 4 The access point transfers the NA message, and the NA message arrives at the user gateway, and the user gateway can thereby confirm that the IPv6 broadband network gateway or the broadband access server is reachable;
  • Step 5 The user initiates an NS message; the user may initiate an NS message before the NA message from the IPv6 broadband network gateway or the broadband access server reaches the user gateway, or may also be in the NA from the IPv6 broadband network gateway or the broadband access server. After the message arrives at the user gateway, an NS message is initiated;
  • Step 6 After the user gateway confirms that the IPv6 broadband network gateway or the broadband access server is reachable, the node that the proxy IPb is located replies to the received NS message through the NA message with its own MAC address (MACr); It can be confirmed that the IPv6 session is alive.
  • MACr MAC address
  • the IPv6 session survival detection process shown in Figure 6 differs from the flow shown in Figure 5 in that: the access point initiates an NS message; and receives the IPv6 broadband network gateway or the broadband access server proxy.
  • the node where the proxy IPb is located replies to the received NS message by using the NA message with its own MAC address (MACd).
  • MACd MAC address
  • Another embodiment of the present invention is a method for detecting the survival of an IPv6 session. As shown in FIG. 7 and FIG. 8, the embodiment shown in FIG. 7 and FIG. 3, FIG. 8 and FIG. 4 of the present embodiment. The only difference is that this embodiment is a case where the NS is initiated by an IPv6 broadband network gateway or a broadband access server.
  • Step 1 The IPv6 broadband network gateway or the broadband access server initiates an NS message requesting a MAC address corresponding to an IPv6 address (such as IPa) included in the NS message;
  • IPv6 address such as IPa
  • the access point transits the NS message;
  • the NS message may be sent in a unicast manner or may be sent in a broadcast manner;
  • Step 3 The NS message initiated by the IPv6 broadband network gateway or the broadband access server triggers the user gateway to initiate an NS message and arrive at the user.
  • Step 4 The user replies to the NS message gateway by using the NA message with its own MAC address (MACa); the user gateway can thereby confirm that the user is reachable;
  • MACa MAC address
  • Step 5-6 User Gateway Proxy
  • the IPa node is at its own MAC address (MACr), passing N
  • the A message replies to the received NS message; the user can thereby confirm that the IPv6 session is alive.
  • the IPv6 session survival detection process shown in FIG. 8 is different from the flow shown in FIG. 7 in that: the access point receives the I Pv6 broadband network gateway or the broadband access server Proxy. After the NS message sent by the ND function entity, the NS message is sent to the user through the user gateway. After receiving the NA message sent by the user, the node where the proxy IPb is located receives the MAC address (MACd) and receives the message through the NA message. NS message.
  • MACd MAC address
  • Another embodiment of the present invention is a method for detecting the survival of an IPv6 session. As shown in FIG. 9 and FIG. 10, the embodiment shown in FIG. 9 and FIG. 5, FIG. 10 and FIG. 6 of the present embodiment. The difference is that it is IPv6 BNG or IPv6.
  • the BRAS initiates a survival test.
  • the process of detecting the survival of an IPv6 session shown in Figure 9 is as follows:
  • Step 1 The user gateway initiates an NS message requesting a MAC address corresponding to an IPv6 address (such as IPa) included in the NS message;
  • IPv6 address such as IPa
  • the NS message may be sent by unicast or by broadcast;
  • Step 2 The user replies to the received NS message with his own MAC address (MACa) through the NA message.
  • MACa his own MAC address
  • Step 3 - 4 Proxy of IPv6 Broadband Network Gateway or Broadband Access Server
  • the ND function entity initiates an NS message; the IPv6 broadband network gateway or the proxy of the broadband access server
  • the ND function entity may initiate the NS before the NA message from the user arrives at the user gateway, or may initiate an NS message after the NA message from the user arrives at the user gateway;
  • Step 5-6 After the user gateway is confirmed to be reachable by the user gateway, the proxy message replies to the received NS message to the IPv6 broadband network gateway or the Proxy of the broadband access server through the NA message with its own MAC address (M ACr).
  • M ACr its own MAC address
  • the ND function entity initiates an NS message to the user; and after receiving the NA message sent by the user, sends the NA message to the IPv6 broadband network gateway or the broadband access server by using the NA message with its own MAC address (MACd) and the node where the proxy IPb is located.
  • Proxy ND functional entity initiates an NS message to the user; and after receiving the NA message sent by the user, sends the NA message to the IPv6 broadband network gateway or the broadband access server by using the NA message with its own MAC address (MACd) and the node where the proxy IPb is located.
  • Proxy ND functional entity Proxy ND functional entity.
  • An embodiment of the present invention provides a survival detection system for an IPv6 session, where the system includes:
  • the ND function is used to proxy the destination node and exchange information with the source node.
  • the destination node includes:
  • the node where the ND function accesses the network side device itself
  • UE configured to perform information interaction with the access network device, to perform the UE and the supporting Proxy
  • the neighbor discovery proxy function entity specifically includes:
  • the first receiving unit is configured to receive an NS message, where the NS message includes an IPv6 address, and is used to request an address MAC address used on the media access layer corresponding to the IPv6 address;
  • a first sending unit configured to send, according to the information received by the first receiving unit, an NA message, where the NA message includes a MAC address of the access network side device itself;
  • the neighbor discovery proxy function entity specifically includes:
  • a second sending unit configured to send an NS message, where the NS message includes an IPv6 address, and is used to request a MAC address corresponding to the IPv6 address;
  • the second receiving unit is configured to receive an NA message, where the NA message includes a MAC address of the device itself that sends the NA message.
  • the access network side device that sets the neighbor discovery proxy function entity may include: an IPv6 BNG or an IPv6 BRAS device.
  • IPv6 BNG and user gateway or, IPv6 BNG and access point; IPv6 BRAS and user gateway; or, IPv6 BRAS and access point; said IPv6 BNG or IPv6
  • the BRAS serves as the first device in the access network side device, and uses the user gateway or the access point as the second device in the access network side device.
  • the neighbor discovery proxy function entity in the second device is configured to receive the first After the NA message replied by the device, the NA message is replied to the UE; the NA message replied by the first device includes the MAC address of the first device itself, and the NA message replied to the UE by the second device includes the Two equipment The MAC address of the body; or,
  • the neighbor discovery proxy function entity in the second device is configured to: after receiving the NA message sent by the UE, reply the NA message to the first device; the NA message sent by the UE includes the MAC of the UE itself.
  • the address, the NA message replied by the second device to the first device includes the MAC address of the second device itself.
  • the embodiment of the present invention supports the Proxy ND function on the access network side device, and utilizes IPv6.
  • the ND process serves as a survival detection mechanism for IPv6 sessions and supports the survival detection of IPv6 sessions.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L’invention concerne un procédé, un appareil et un système de détection de l'activité d'une session IPv6. Selon l’invention, un dispositif côté réseau d'accès prenant en charge une fonction ND mandataire communique avec un UE, afin de mettre en application une détection de l'activité d'une session IPv6 entre le dispositif côté réseau d'accès prenant en charge une fonction ND mandataire et l'UE. Le dispositif côté réseau d'accès prenant en charge une fonction ND mandataire agit en tant qu'agent du nœud de destination et est utilisé pour communiquer avec le nœud source. Le nœud de destination inclut le nœud où se situe le dispositif côté réseau d'accès prenant en charge une fonction ND mandataire. Le nœud source inclut le nœud où se situe l'UE ou le dispositif côté réseau d'accès prenant en charge une fonction ND mandataire. Le dispositif côté réseau d'accès prend en charge la fonction ND mandataire, et la procédure ND IPv6 agissant en tant que mécanisme de détection de l'activité de la session IPv6 prend en charge la détection de l'activité de la session IPv6 dans le système de cette invention.
PCT/CN2009/070663 2008-03-06 2009-03-06 Procédé, appareil et système de détection de l'activité d'une session ipv6 WO2009109141A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810101452.3 2008-03-06
CN 200810101452 CN101527711B (zh) 2008-03-06 2008-03-06 一种IPv6会话的存活检测的方法、装置及系统

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CN102594882A (zh) * 2012-02-08 2012-07-18 神州数码网络(北京)有限公司 一种基于DHCPv6监听的邻居发现代理方法和系统

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WO2007046597A1 (fr) * 2005-10-15 2007-04-26 Electronics And Telecommunications Research Institute Procede de support du protocole neighbor discovery ipv6 dans un reseau sans fil a bande large oriente point a point
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