GB/T 44887.5-2024IPv6演進技術(shù)要求第5部分：基于IPv6段路由（SRv6）的虛擬專用網(wǎng)（VPN）

ICS

33.040.40

CCS

L78

中華人民共和國國家標(biāo)準(zhǔn)

GB/T44887.5—2024

IPv6演進技術(shù)要求

第5部分：基于IPv6段路由（SRv6）的

虛擬專用網(wǎng)（VPN）

IPv6evolutiontechnicalrequirements—

Part5：SRv6?basedVPN

2024-11-28發(fā)布2025-03-01實施

國家市場監(jiān)督管理總局發(fā)布

國家標(biāo)準(zhǔn)化管理委員會

GB/T44887.5—2024

目次

前言

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Ⅲ

引言

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Ⅳ

1

范圍

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2

規(guī)范性引用文件

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3

術(shù)語和定義

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4

縮略語

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5

基于SRv6的VPN網(wǎng)絡(luò)技術(shù)架構(gòu)

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6

SRv6服務(wù)TLV技術(shù)要求

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3

6.1

SRv6服務(wù)TLV

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6.2

SRv6服務(wù)子TLV

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6.3

SRv6SID信息子TLV

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4

6.4

SRv6服務(wù)數(shù)據(jù)Sub?Sub?TLV

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5

6.5

SRv6SID結(jié)構(gòu)Sub?Sub?TLV

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7

基于SRv6VPN網(wǎng)絡(luò)的三層服務(wù)

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6

7.1

三層服務(wù)實現(xiàn)機制

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7.2

IPv4VPN服務(wù)

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7.3

IPv6VPN服務(wù)

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7.4

全球可尋址IPv4服務(wù)

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7.5

全球可尋址IPv6服務(wù)

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8

基于SRv6VPN網(wǎng)絡(luò)的二層服務(wù)

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8.1

二層服務(wù)實現(xiàn)機制

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8.2

以太網(wǎng)自動發(fā)現(xiàn)路由

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8.3

MAC/IP通告路由

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8.4

泛組播以太網(wǎng)標(biāo)簽路由

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8.5

以太網(wǎng)分段路由

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8.6

IP前綴路由

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8.7

EVPN組播路由

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9

協(xié)議消息錯誤的處理

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參考文獻

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Ⅰ

GB/T44887.5—2024

前言

本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)

定起草。

本文件是GB/T44887《IPv6演進技術(shù)要求》的第5部分，GB/T44887已經(jīng)發(fā)布了以下部分：

—第5部分：基于IPv6段路由（SRv6）的虛擬專用網(wǎng)（VPN）；

—第10部分：支持IP網(wǎng)絡(luò)切片的增強型虛擬專用網(wǎng)（VPN+）；

—第11部分：IPv6隨流檢測技術(shù)。

請注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機構(gòu)不承擔(dān)識別專利的責(zé)任。

本文件由中華人民共和國工業(yè)和信息化部提出。

本文件由全國通信標(biāo)準(zhǔn)化技術(shù)委員會（SAC/TC485）歸口。

本文件起草單位：中國電信集團有限公司、中國聯(lián)合網(wǎng)絡(luò)通信集團有限公司、華為技術(shù)有限公司、

中興通訊股份有限公司、中國信息通信科技集團有限公司、新華三技術(shù)有限公司。

本文件主要起草人：龔霞、萬曉蘭、伍佑明、朱永慶、毛健煒、劉堯、龐冉、彭書萍、張征、汪俊芳、

楊冰。

Ⅲ

GB/T44887.5—2024

引言

根據(jù)《關(guān)于加快推進互聯(lián)網(wǎng)協(xié)議第六版（IPv6）規(guī)模部署和應(yīng)用工作的通知》，為加快政務(wù)應(yīng)用改

造、拓展行業(yè)融合應(yīng)用，推動IPv6規(guī)模部署和應(yīng)用創(chuàng)新成果標(biāo)準(zhǔn)化，我國制定了一系列IPv6標(biāo)準(zhǔn)。其

中，GB/T44887《IPv6演進技術(shù)要求》是為規(guī)范國家IPv6部署而制定的標(biāo)準(zhǔn)，擬分為以下部分。

—第1部分：參考架構(gòu)。目的在于規(guī)定IPv6演進技術(shù)在運營商和行業(yè)領(lǐng)域的應(yīng)用場景，以及在運

營商及行業(yè)網(wǎng)絡(luò)中的部署。

—第2部分：基于IPv6段路由（SRv6）的IP承載網(wǎng)絡(luò)。目的在于規(guī)定基于SRv6的IP承載網(wǎng)絡(luò)總體

架構(gòu)、基于SRv6的設(shè)備層技術(shù)要求及基于SRv6的管控層技術(shù)要求。

—第3部分：IPv6段路由報文頭（SRH）。目的在于規(guī)定IPv6段路由報文頭（SRH）的格式，以

及SRH在節(jié)點處理的技術(shù)要求。

—第4部分：基于IPv6段路由（SRv6）的網(wǎng)絡(luò)編程。目的在于規(guī)定基于SRv6網(wǎng)絡(luò)編程的數(shù)據(jù)平

面、控制平面、管理平面。

—第5部分：基于IPv6段路由（SRv6）的虛擬專用網(wǎng)（VPN）。目的在于規(guī)定基于SRv6的

VPN網(wǎng)絡(luò)的處理流程和協(xié)議消息，包含三層服務(wù)和二層服務(wù)等實現(xiàn)。

—第6部分：IPv6段路由（SRv6）策略（Policy）。目的在于規(guī)定用于支持基于SRv6策略技術(shù)

的網(wǎng)絡(luò)設(shè)備的開發(fā)、設(shè)計和測試等。

—第7部分：基于IPv6段路由（SRv6）的業(yè)務(wù)鏈。目的在于規(guī)定基于SRv6的業(yè)務(wù)鏈數(shù)據(jù)面技術(shù)要

求、基于SRv6的業(yè)務(wù)鏈控制面技術(shù)要求。

—第8部分：基于IPv6段路由（SRv6）的報文頭壓縮。目的在于規(guī)定適用于支持基于SRv6的報文

頭壓縮的網(wǎng)絡(luò)設(shè)備的開發(fā)、設(shè)計和測試等。

—第9部分：基于IPv6段路由（SRv6）的網(wǎng)絡(luò)故障保護。目的在于規(guī)定適用于SRv6組網(wǎng)下常見網(wǎng)

絡(luò)故障場景，包括SRv6BE節(jié)點/鏈路失效、SRv6Policy中間節(jié)點/尾節(jié)點失效、微環(huán)及SRv6

Policy故障場景等。

—第10部分：支持IP網(wǎng)絡(luò)切片的增強型虛擬專用網(wǎng)（VPN+）。目的在于規(guī)定增強型虛擬專用

網(wǎng)（VPN+）的技術(shù)架構(gòu)、VPN+技術(shù)要求，以及基于SR的VPN+實現(xiàn)流程。

—第11部分：IPv6隨流檢測技術(shù)。目的在于規(guī)定適用于多類型業(yè)務(wù)承載場景下數(shù)據(jù)面隨流信息的

自動化質(zhì)量測量，以及IP網(wǎng)絡(luò)設(shè)備隨流檢測功能研發(fā)、測試與部署。

Ⅳ

GB/T44887.5—2024

IPv6演進技術(shù)要求

第5部分：基于IPv6段路由（SRv6）的

虛擬專用網(wǎng)（VPN）

1范圍

本文件規(guī)定了基于SRv6的VPN網(wǎng)絡(luò)技術(shù)架構(gòu)、SRv6服務(wù)TLV、基于SRv6VPN網(wǎng)絡(luò)的三層服

務(wù)、基于SRv6VPN網(wǎng)絡(luò)的二層服務(wù)等技術(shù)要求。

本文件適用于網(wǎng)絡(luò)設(shè)備的SRv6VPN技術(shù)研發(fā)、測試與應(yīng)用。

2規(guī)范性引用文件

下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文

件，僅該日期對應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用

于本文件。

IETFRFC2545BGP?4多協(xié)議擴展在IPv6域間路由的應(yīng)用（UseofBGP?4MultiprotocolExten?

sionsforIPv6Inter?DomainRouting）

IETFRFC4659IPv6VPN場景中的BGP?MPLSIP虛擬私有網(wǎng)絡(luò)擴展[BGP?MPLSIPVirtual

PrivateNetwork（VPN）ExtensionforIPv6VPN]

IETFRFC7432基于BGPMPLS的EVPN（BGPMPLS?BasedEthernetVPN）

IETFRFC8950通告帶有IPv6下一跳地址的IPv4網(wǎng)絡(luò)層可達性信息[AdvertisingIPv4Network