WO2023050981A1 - Procédé et appareil d'attribution pour identifiant de service de réseau privé virtuel, et procédé et appareil de traitement de message - Google Patents

Procédé et appareil d'attribution pour identifiant de service de réseau privé virtuel, et procédé et appareil de traitement de message Download PDF

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Publication number
WO2023050981A1
WO2023050981A1 PCT/CN2022/107003 CN2022107003W WO2023050981A1 WO 2023050981 A1 WO2023050981 A1 WO 2023050981A1 CN 2022107003 W CN2022107003 W CN 2022107003W WO 2023050981 A1 WO2023050981 A1 WO 2023050981A1
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WO
WIPO (PCT)
Prior art keywords
domain
private network
virtual private
service identifier
identifier
Prior art date
Application number
PCT/CN2022/107003
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English (en)
Chinese (zh)
Inventor
刘尧
彭少富
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中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2023050981A1 publication Critical patent/WO2023050981A1/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
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/74—Address processing for routing
    • H04L45/745—Address table lookup; Address filtering

Definitions

  • Embodiments of the present disclosure relate to the communication field, and in particular, relate to a virtual private network service identifier allocation method, message processing method and device.
  • Segment routing is a source address-based routing method, through the header of the multi-protocol label switching (Multi-Protocol Label Switching, referred to as MPLS) network or Internet Protocol version 6 ( Internet Protocol Version 6, IPv6) contains a segment routing header (Segment Routing Header, referred to as SRH), which carries a series of instruction operations (also known as segment operations) in the SRH for data in the network routing and transport.
  • MPLS Multi-Protocol Label Switching
  • IPv6 Internet Protocol Version 6, IPv6
  • a virtual private network service identification allocation method is provided, which is applied to a predetermined border device, wherein the predetermined border device includes: a border device of the first domain or between the first domain and the second domain
  • the border device includes: receiving a first virtual private network route notified by a provider edge device in the first domain, wherein the first virtual private network route includes a route identifier and a packet feature; Allocating a second virtual private network service identifier corresponding to the second domain according to the routing identifier, wherein there is a one-to-one correspondence between the second virtual private network service identifier and the routing identifier; according to the first
  • a virtual private network route generates a routing identifier space entry corresponding to the routing identifier, and generates a service identification entry, wherein the routing identifier space entry includes performing
  • the encapsulation and forwarding actions of the service identifier entry include a predetermined action corresponding to the second virtual private network service identifier, and the predetermined action includes: querying
  • a packet processing method applied to a predetermined border device wherein the predetermined border device includes: a border device of the first domain or a border device between the first domain and the second domain , the method includes: receiving a message from the second domain, wherein the message carries a message characteristic and a second virtual private network service identifier corresponding to the second domain, and the second virtual private network There is a one-to-one correspondence between the network service identifier and the routing identifier corresponding to the message; querying the service identifier entry to determine the predetermined action corresponding to the second virtual private network service identifier, wherein the predetermined action includes: querying the route A discriminator space entry; querying the route discriminator space entry according to the message characteristics to determine encapsulation and forwarding actions, and encapsulating and forwarding the message based on the determined encapsulation and forwarding actions, wherein the The route discriminator space entry includes encapsulation and forwarding actions performed on the packet carrying the packet feature.
  • an electronic device including a memory, a processor, and a computer program stored in the memory and operable on the processor, when the processor executes the computer program.
  • Fig. 8 is a structural block diagram of a message processing device according to an embodiment of the present disclosure.
  • Fig. 12 is a schematic diagram of a first extended form of label/SID allocation extended community attribute according to Example 2 of the present disclosure
  • FIG. 16 is a schematic diagram of a first-level entry according to Example 3 of the present disclosure.
  • FIG. 19 is a schematic diagram of a first-level entry according to Example 4 of the present disclosure.
  • Example 21 is a schematic diagram of the architecture of MPLS VPN cross-AS intercommunication according to Example 5 of the present disclosure.
  • FIG. 22 is a schematic diagram of a first-level entry according to Example 5 of the present disclosure.
  • FIG. 1 is a schematic diagram of MPLS VPN cross-AS interworking networking according to an embodiment of the present disclosure.
  • a customer edge device Customer Edge, CE
  • CE1 and CE2 need to communicate.
  • the label distribution methods on ASBR mainly include the following:
  • BGP Extended Communities Attribute BGP Extended Communities Attribute
  • the prefixes corresponding to CE1, CE2, CE3, CE4, and CE5 are prefix1, prefix2, prefix3, prefix2, and prefix5 respectively.
  • RD RD1
  • prefix prefix5
  • next hop PE2
  • service SID SID21.

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

Abstract

Les modes de réalisation de la présente divulgation concernent un procédé et un appareil d'attribution concernant un identifiant de service de réseau privé virtuel, et un procédé et un appareil de traitement de message. Le procédé d'attribution est appliqué à un dispositif frontalier prédéfini, et le procédé consiste à : recevoir un premier itinéraire de réseau privé virtuel, qui est annoncé par un dispositif périphérique de fournisseur dans un premier domaine ; attribuer, en fonction des éléments de distinction de routage, des seconds identifiants de service de réseau privé virtuel correspondant à un second domaine, les seconds identifiants de service de réseau privé virtuel correspondant aux éléments de distinction de routage sur une base biunivoque ; et générer, selon le premier itinéraire de réseau privé virtuel, une entrée de table d'espace d'éléments de distinction de routage de routage correspondant aux éléments de distinction de routage, et générer une entrée de table d'identifiant de service, l'entrée de table d'identifiant de service comprenant une action prédéfinie correspondant aux seconds identifiants de service de réseau privé virtuel, et l'action prédéfinie consistant à : interroger l'entrée de table d'espace d'éléments de distinction de routage. Au moyen du procédé, le nombre d'identifiants de service VPN attribués est fortement réduit, ce qui permet d'économiser efficacement des identifiants de service VPN.
PCT/CN2022/107003 2021-09-30 2022-07-21 Procédé et appareil d'attribution pour identifiant de service de réseau privé virtuel, et procédé et appareil de traitement de message WO2023050981A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111163051.2A CN115914093A (zh) 2021-09-30 2021-09-30 虚拟专用网络业务标识的分配方法、报文处理方法及装置
CN202111163051.2 2021-09-30

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WO2023050981A1 true WO2023050981A1 (fr) 2023-04-06

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PCT/CN2022/107003 WO2023050981A1 (fr) 2021-09-30 2022-07-21 Procédé et appareil d'attribution pour identifiant de service de réseau privé virtuel, et procédé et appareil de traitement de message

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CN (1) CN115914093A (fr)
WO (1) WO2023050981A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110830352A (zh) * 2018-08-07 2020-02-21 中兴通讯股份有限公司 一种vpn跨域的实现方法、装置和边界节点
US20200287826A1 (en) * 2017-11-30 2020-09-10 Zte Corporation Packet sending and processing method and apparatus, pe node, and node
CN112511423A (zh) * 2020-09-03 2021-03-16 中兴通讯股份有限公司 报文处理方法、边界设备和计算机可读介质

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200287826A1 (en) * 2017-11-30 2020-09-10 Zte Corporation Packet sending and processing method and apparatus, pe node, and node
CN110830352A (zh) * 2018-08-07 2020-02-21 中兴通讯股份有限公司 一种vpn跨域的实现方法、装置和边界节点
CN112511423A (zh) * 2020-09-03 2021-03-16 中兴通讯股份有限公司 报文处理方法、边界设备和计算机可读介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
S. BRYANT, ED. HUAWEI A. FARREL, ED. J. DRAKE JUNIPER NETWORKS J. TANTSURA INDIVIDUAL: "MPLS Segment Routing in IP Networks; draft-bryant-mpls-unified-ip-sr-03.txt", no. 03, 30 October 2017 (2017-10-30), pages 1 - 18, XP015122669 *

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