WO2017054576A1 - Procédé, appareil et système de construction de tunnel à diffusion unique - Google Patents

Procédé, appareil et système de construction de tunnel à diffusion unique Download PDF

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Publication number
WO2017054576A1
WO2017054576A1 PCT/CN2016/094241 CN2016094241W WO2017054576A1 WO 2017054576 A1 WO2017054576 A1 WO 2017054576A1 CN 2016094241 W CN2016094241 W CN 2016094241W WO 2017054576 A1 WO2017054576 A1 WO 2017054576A1
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WO
WIPO (PCT)
Prior art keywords
vxlan
network device
packet
tunnel
message
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Application number
PCT/CN2016/094241
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English (en)
Chinese (zh)
Inventor
张平平
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中兴通讯股份有限公司
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Publication of WO2017054576A1 publication Critical patent/WO2017054576A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]

Definitions

  • network device C and network device D need to establish tunnels based on the local device VTEP and VxLAN multicast service public information.
  • the first network device sends the inner layer packet to the first client, where the first client is a client that communicates with the network side by using the first network device.
  • the first network device establishes, according to the identifier information, a VxLAN unicast tunnel whose destination address is the second network device;
  • the encapsulating, by the second network device, the inner layer packet sent by the first network device to the VxLAN message according to the VxLAN service specification standard further includes:
  • the device further includes:
  • the establishing module includes:
  • the statistic module is configured to collect the usage rate of the VxLAN tunnel established by the first network device in the preset time period, where the VxLAN tunnel established by the first network device includes: a VxLAN unicast tunnel and/or a VxLAN multicast tunnel;
  • the encapsulating module includes:
  • a second encapsulating unit configured to encapsulate the inner layer packet into the VxLAN packet according to the VxLAN service specification standard, if it is determined that the VxLAN unicast tunnel with the destination address being the first network device is established.
  • the VxLAN message is a VxLAN unicast message
  • FIG. 3 is a structural block diagram of a unicast tunnel establishing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a block diagram 1 of an optional structure of a unicast tunnel establishing apparatus according to an embodiment of the present invention
  • FIG. 14 is a structural block diagram of a fast setup VxLAN unicast tunnel system in accordance with an alternate embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for establishing a unicast tunnel according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S206 The first network device establishes a VxLAN unicast tunnel whose destination address is the second network device according to the identifier information.
  • the first network device establishes a VxLAN unicast tunnel whose destination address is the second network device according to the identifier information of the VxLAN packet sent by the second network device, and does not need to establish a protocol stack between the network devices to pass the private protocol packet.
  • the network device may first determine whether the VxLAN unicast tunnel with the destination address is the first network device is established, and the If the VxLAN unicast tunnel is configured as the first network device, the inner-layer packet is encapsulated into a VxLAN multicast packet according to the VxLAN service specification, and the VxLAN multicast packet is sent through the VxLAN multicast tunnel. Received by the first network device.
  • the first network device may count the first time in the preset time period.
  • the VxLAN tunnel established by the network device is deleted, and the VxLAN tunnel established by the first network device whose usage rate is lower than the preset value is deleted according to the comparison between the statistics and the preset value, where the VxLAN tunnel established by the first network device includes : VxLAN unicast tunnel and / or VxLAN multicast tunnel.
  • a device for establishing a unicast tunnel is also provided, which is applied to the first network device, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 3 is a structural block diagram of a unicast tunnel establishing apparatus according to an embodiment of the present invention.
  • the apparatus includes: a first receiving module 32, a parsing module 34, and an establishing module 36, wherein the first receiving module 32, The method is configured to receive the VxLAN message sent by the second network device, and the parsing module 34 is coupled to the first receiving module 32 and configured to parse the VxLAN message.
  • the identification information of the text is established, and the establishing module 36 is coupled to the parsing module 34, and is configured to establish a VxLAN unicast tunnel whose destination address is the second network device according to the identifier information.
  • the foregoing identification information further includes at least one of the following: the VLAN information carried in the outer label of the VxLAN packet, the VNI information carried in the outer label of the VxLAN packet, and the query according to the IP address of the second network device.
  • Next HOP information is the VLAN information carried in the outer label of the VxLAN packet.
  • the statistic module 82 is coupled to the establishing module 36, and configured to count the usage rate of the VxLAN tunnel established by the first network device in the preset time period, where the VxLAN tunnel established by the first network device includes: a VxLAN unicast tunnel and And a VxLAN multicast tunnel; the second determining module 84 is coupled to the statistic module 82, and configured to determine, according to the statistical result, whether the usage rate of the VxLAN tunnel established by the first network device is lower than a preset value; the deleting module 86 is coupled to the first The second determining module 84 is configured to delete the VxLAN tunnel whose usage rate in the VxLAN tunnel established by the first network device is lower than a preset value.
  • Step S202 The first network device receives the VxLAN packet sent by the second network device.
  • Step S204 The first network device parses the identifier information of the VxLAN packet.
  • the transmitting and receiving unit implements data exchange between the network device and the host/client, and data exchange between the network devices through the cloud network.
  • FIG. 13 is a structural block diagram of a device for rapidly establishing a VxLAN unicast tunnel according to an alternative embodiment of the present invention. As shown in FIG. 13, the device includes:
  • the VxLAN encoding unit 1304 is configured to receive the inner layer packet sent by the host/client, and perform VxLAN service encapsulation according to the VxLAN service specification standard;
  • the VxLAN decoding unit 1306 is configured to receive the VxLAN service packet from the cloud network, decapsulate according to the VxLAN service specification standard, and then send the inner layer packet to the host/client.
  • the VxLAN decoding unit also parses the IP address information of the remote network device carried in the VxLAN service packet, and the VLAN, the VNI of the VxLAN packet, the source IP address or the source MAC address of the inner layer packet, and the VxLAN packet according to the VxLAN packet.
  • the identification information such as Next HOP queried by the source IP address is transmitted to the data management unit, and the tunnel configuration unit is notified;
  • a tunnel configuration unit 1310 configured to establish a VTEP on the local network device, and establish a VxLAN multicast tunnel according to the VTEP and VxLAN multicast information;
  • the tunnel configuration unit 1310 is further configured to: according to the VTEP and the IP address information of the remote network device, the VLAN of the VxLAN message, the VNI, and the source IP address or source MAC address of the inner layer packet, and the source according to the VxLAN message.
  • the identification information such as Next HOP queried by the IP address establishes a VxLAN unicast tunnel;
  • the tunnel configuration unit 1310 is further configured to access the records of the data management unit, and may also identify and modify the records of the data management unit.
  • the network device C includes: a transmitting and receiving unit C101, a VxLAN encoding unit C102, a VxLAN decoding unit C103, a data management unit C104, a timer C105, and a tunnel configuration unit C106;
  • Step 6 The data management unit D204 records the IP address information of all the received remote devices, the VLAN of the VxLAN message, the VNI, and the source MAC address of the inner layer packet, and the source IP address of the VxLAN message is queried.
  • Identification information such as Next HOP, providing a common database interface (including adding, deleting, modifying, and querying records);
  • Step 8 When the host/client B sends the inner layer packet to the network device D, the VxLAN coding unit D202 determines that if the inner layer packet is an unknown unicast service packet, the packet is a VxLAN multicast packet and is multicast through the VxLAN. Tunnel transmission; if the inner-layer packet is a unicast service packet, it is encapsulated as a VxLAN unicast packet and transmitted through a VxLAN unicast tunnel.
  • the network device D has already established the VxLAN unicast tunnel required by the destination address of the unicast service packet (ie, the host/client A), and can be processed according to the known unicast packet.
  • the VxLAN coding unit D202 encapsulates the inner layer packet into a VxLAN unicast message and transmits the signal through a VxLAN unicast tunnel.
  • Step 9 The VxLAN unicast tunnel transmits the packet, encapsulates and sends the packet from the VTEP of the network device D, penetrates the cloud network, reaches the VTEP of the network device C, and completes the tunnel transmission;
  • the gateway is configured on the network device D in the manner of a centralized gateway as an example for description and description.
  • the system can also implement the following steps:
  • Step 7 After receiving the notification of the VTEP, the tunnel configuration unit D206, according to the local device VTEP and the IP address information of the remote network device, and the VLAN, the VNI of the VxLAN message, and the source IP address of the ARP request packet, and An L3VxLAN unicast tunnel is established based on the identification information such as Next HOP queried by the source IP address of the VxLAN packet.
  • the packet whose destination IP address is the remote network device is received again, the packet is directly decapsulated and the configuration unit is advertised.

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

Abstract

L'invention concerne un procédé, un appareil et un système de construction de tunnel à diffusion unique. Le procédé comprend les étapes suivantes : un premier équipement de réseau reçoit un message de réseau local extensible virtuel (VxLAN) transmis par un second équipement de réseau ; le premier équipement de réseau analyse des informations d'identification du message VxLAN ; selon les informations d'identification, le premier équipement de réseau construit un tunnel à diffusion unique VxLAN dont l'adresse de destination est le second équipement de réseau. La présente invention résout le problème selon lequel des technologies connexes, utilisées dans la construction d'un tunnel à diffusion unique VxLAN par interaction de protocole privé, sont faibles en termes d'efficacité, et une construction rapide d'un tunnel à diffusion unique VxLAN est obtenue.
PCT/CN2016/094241 2015-09-30 2016-08-09 Procédé, appareil et système de construction de tunnel à diffusion unique WO2017054576A1 (fr)

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CN201510644150.0A CN106559302A (zh) 2015-09-30 2015-09-30 单播隧道建立方法、装置和系统
CN201510644150.0 2015-09-30

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CN108337118A (zh) * 2018-01-31 2018-07-27 新华三技术有限公司 报文转发方法及装置
CN112003749A (zh) * 2020-08-21 2020-11-27 北京浪潮数据技术有限公司 一种主机信息添加方法、系统和电子设备
CN112511991A (zh) * 2020-11-27 2021-03-16 锐捷网络股份有限公司 点播方法、设备及存储介质
CN113037883A (zh) * 2021-02-23 2021-06-25 中国联合网络通信集团有限公司 一种mac地址表项的更新方法及装置
CN113872847A (zh) * 2021-11-18 2021-12-31 浪潮思科网络科技有限公司 一种基于vxlan网络的报文转发方法、设备及介质
WO2022166464A1 (fr) * 2021-02-07 2022-08-11 华为技术有限公司 Procédé et système de transmission de paquets, et dispositif
CN115102806A (zh) * 2022-06-20 2022-09-23 咪咕视讯科技有限公司 组播数据传输方法、装置、系统及存储介质

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CN107171966B (zh) * 2017-07-27 2019-11-26 迈普通信技术股份有限公司 一种vxlan报文发送方法、vtep及vxlan系统
CN109981455A (zh) * 2017-12-28 2019-07-05 中兴通讯股份有限公司 一种隧道实现方法及装置
CN112532501B (zh) * 2019-09-18 2023-04-18 中国电信股份有限公司 主机物理地址处理方法和装置、计算机可读存储介质
CN111371667A (zh) * 2019-10-23 2020-07-03 上海科技网络通信有限公司 一种面向云计算环境下基于VxLAN技术的LTE VPDN组网方法
CN112187611B (zh) * 2020-09-30 2022-03-25 瑞斯康达科技发展股份有限公司 一种建立业务隧道的方法、存储介质和设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108337118A (zh) * 2018-01-31 2018-07-27 新华三技术有限公司 报文转发方法及装置
CN108337118B (zh) * 2018-01-31 2021-01-26 新华三技术有限公司 报文转发方法及装置
CN112003749A (zh) * 2020-08-21 2020-11-27 北京浪潮数据技术有限公司 一种主机信息添加方法、系统和电子设备
CN112511991A (zh) * 2020-11-27 2021-03-16 锐捷网络股份有限公司 点播方法、设备及存储介质
WO2022166464A1 (fr) * 2021-02-07 2022-08-11 华为技术有限公司 Procédé et système de transmission de paquets, et dispositif
CN113037883A (zh) * 2021-02-23 2021-06-25 中国联合网络通信集团有限公司 一种mac地址表项的更新方法及装置
CN113872847A (zh) * 2021-11-18 2021-12-31 浪潮思科网络科技有限公司 一种基于vxlan网络的报文转发方法、设备及介质
CN115102806A (zh) * 2022-06-20 2022-09-23 咪咕视讯科技有限公司 组播数据传输方法、装置、系统及存储介质
CN115102806B (zh) * 2022-06-20 2023-10-17 咪咕视讯科技有限公司 组播数据传输方法、装置、系统及存储介质

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