rfc9792v3.txt   rfc9792.txt 
Internet Engineering Task Force (IETF) R. Chen Internet Engineering Task Force (IETF) R. Chen
Request for Comments: 9792 D. Zhao Request for Comments: 9792 D. Zhao
Category: Standards Track ZTE Corporation Category: Standards Track ZTE Corporation
ISSN: 2070-1721 P. Psenak ISSN: 2070-1721 P. Psenak
K. Talaulikar K. Talaulikar
Cisco Systems Cisco Systems
L. Gong L. Gong
China mobile China mobile
May 2025 June 2025
Prefix Flag Extension for OSPFv2 and OSPFv3 Prefix Flag Extension for OSPFv2 and OSPFv3
Abstract Abstract
Each OSPF prefix can be advertised with an 8-bit field to indicate Each OSPF prefix can be advertised with an 8-bit field to indicate
specific properties of that prefix. However, all the OSPFv3 Prefix specific properties of that prefix. However, all the OSPFv3 Prefix
Options bits have already been assigned, and only a few bits remain Options bits have already been assigned, and only a few bits remain
unassigned in the Flags field of the OSPFv2 Extended Prefix TLV. unassigned in the Flags field of the OSPFv2 Extended Prefix TLV.
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