Extensions to OSPF for Advertising Optional Router Capabilities
RFC 7770, “Extensions to OSPF for Advertising Optional Router Capabilities”, is a Proposed Standard document published in February 2016 by A. Lindem, N. Shen, JP. Vasseur, R. Aggarwal, S. Shaffer. It obsoletes RFC 4970. The canonical text is published by the RFC Editor.
Abstract
It is useful for routers in an OSPFv2 or OSPFv3 routing domain to know the capabilities of their neighbors and other routers in the routing domain. This document proposes extensions to OSPFv2 and OSPFv3 for advertising optional router capabilities. The Router Information (RI) Link State Advertisement (LSA) is defined for this purpose. In OSPFv2, the RI LSA will be implemented with an Opaque LSA type ID. In OSPFv3, the RI LSA will be implemented with a unique LSA type function code. In both protocols, the RI LSA can be advertised at any of the defined flooding scopes (link, area, or autonomous system (AS)). This document obsoletes RFC 4970 by providing a revised specification that includes support for advertisement of multiple instances of the RI LSA and a TLV for functional capabilities.
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 7770 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 7769 Media Access Control Address Withdrawal over Static Pseudowire
- RFC 7771 Switching Provider Edge Protection for MPLS and MPLS Transport Profile Static Multi-Segment Pseudowires
- RFC 7768 Port Management to Reduce Logging in Large-Scale NATs
- RFC 7772 Reducing Energy Consumption of Router Advertisements
- RFC 7767 Application-Initiated Check-Pointing via the Port Control Protocol
- RFC 7773 Authentication Context Certificate Extension
- RFC 7766 DNS Transport over TCP - Implementation Requirements
- RFC 7774 Multicast Protocol for Low-Power and Lossy Networks Parameter Configuration Option for DHCPv6