Dissemination of Flow Specification Rules
RFC 8955, “Dissemination of Flow Specification Rules”, is a Proposed Standard document published in December 2020 by C. Loibl, S. Hares, R. Raszuk, D. McPherson, M. Bacher. It obsoletes RFC 5575, RFC 7674. It has since been updated by RFC 8956, RFC 9117, RFC 9184. The canonical text is published by the RFC Editor.
Abstract
This document defines a Border Gateway Protocol Network Layer Reachability Information (BGP NLRI) encoding format that can be used to distribute (intra-domain and inter-domain) traffic Flow Specifications for IPv4 unicast and IPv4 BGP/MPLS VPN services. This allows the routing system to propagate information regarding more specific components of the traffic aggregate defined by an IP destination prefix.
It also specifies BGP Extended Community encoding formats, which can be used to propagate Traffic Filtering Actions along with the Flow Specification NLRI. Those Traffic Filtering Actions encode actions a routing system can take if the packet matches the Flow Specification.
This document obsoletes both RFC 5575 and RFC 7674.
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 8955 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 8954 Online Certificate Status Protocol Nonce Extension
- RFC 8956 Dissemination of Flow Specification Rules for IPv6
- RFC 8953 Coordinating Attack Response at Internet Scale 2 Workshop Report
- RFC 8952 Captive Portal Architecture
- RFC 8958 Updated Registration Rules for URI.ARPA
- RFC 8951 Clarification of Enrollment over Secure Transport : Transfer Encodings and ASN.1
- RFC 8960 A YANG Data Model for MPLS Base
- RFC 8950 Advertising IPv4 Network Layer Reachability Information with an IPv6 Next Hop