Argument Signaling for BGP Services in Segment Routing over IPv6
RFC 9819, “Argument Signaling for BGP Services in Segment Routing over IPv6”, is a Proposed Standard document published in July 2025 by K. Talaulikar, K. Raza, J. Rabadan, W. Lin. It updates RFC 9252. The canonical text is published by the RFC Editor.
Abstract
RFC 9252 defines procedures and messages for BGP overlay services for Segment Routing over IPv6 (SRv6), including Layer 3 Virtual Private Network (L3VPN), Ethernet VPN (EVPN), and global Internet routing. This document updates RFC 9252 and provides more detailed specifications for the signaling and processing of SRv6 Segment Identifier advertisements for BGP overlay service routes associated with SRv6 Endpoint Behaviors that support arguments.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9819 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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- RFC 9820 Authentication Service Based on the Extensible Authentication Protocol for Use with the Constrained Application Protocol
- RFC 9817 Use Cases for In-Network Computing
- RFC 9816 Usage and Applicability of BGP Link State Shortest Path First Routing in Data Centers
- RFC 9815 BGP Link State Shortest Path First Routing
- RFC 9814 Use of the SLH-DSA Signature Algorithm in the Cryptographic Message Syntax
- RFC 9824 Compact Denial of Existence in DNSSEC
- RFC 9813 Operational Considerations for Using TLS Pre-Shared Keys with RADIUS