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YD/T 6731-2026Technical requirements for border gateway protocol (BGP) link-state shortest path first (SPF) routing protocol (English PDF)

边界网关协议（BGP）链路状态最短路径优先路由协议技术要求

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Also coversYD/T6731-2026 + YDT6731-2026

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Issued by

Ministry of Industry and Information Technology

Level / Type

Industry · Recommended

Issue date

March 11, 2026

Implementation date

June 1, 2026

Scope

YD/T 6731-2026 is the English-translated version of 边界网关协议（BGP）链路状态最短路径优先路由协议技术要求.

YD/T 6731-2026 specifies the technical requirements for the border gateway protocol (BGP) link-state shortest path first (SPF) routing protocol. The content includes an overview of the protocol, its relationship with BGP, the peer model of the BGP link-state SPF routing protocol, and the protocol and algorithm procedures. It applies to network devices that support the BGP link-state shortest path first routing protocol.

Router and switch vendors, operators of large networks and test engineers can use it when implementing, selecting or checking this routing protocol. It is a voluntary industry standard (code with /T) of the communications sector, approved by the Ministry of Industry and Information Technology. It was issued on 11 March 2026 and takes effect on 1 June 2026. It is a new standard and replaces no earlier edition.

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Document preview — YD/T 6731-2026

National Standard of the People's Republic of China

ICS: 33.040.40
Classification: L78

Issued by: Ministry of Industry and Information Technology

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

YD/T 6731-2026 is a recommended industry standard of the People's Republic of China in the Telecom sector, approved and issued by the Ministry of Industry and Information Technology on 11 March 2026, with effect from 1 June 2026.

It is administered by the China Communications Standards Association.

Classification: ICS 33.040.40; CCS L78.

1 Scope

Remaining clauses in the full document

2 Normative references
3 Terms and definitions

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

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