IS-IS Application-Specific Link Attributes
RFC 9479, “IS-IS Application-Specific Link Attributes”, is a Proposed Standard document published in October 2023 by L. Ginsberg, P. Psenak, S. Previdi, W. Henderickx, J. Drake. It obsoletes RFC 8919. The canonical text is published by the RFC Editor.
Abstract
Existing traffic-engineering-related link attribute advertisements have been defined and are used in RSVP-TE deployments. Since the original RSVP-TE use case was defined, additional applications (e.g., Segment Routing Policy and Loop-Free Alternates) that also make use of the link attribute advertisements have been defined. In cases where multiple applications wish to make use of these link attributes, the current advertisements do not support application-specific values for a given attribute, nor do they support an indication of which applications are using the advertised value for a given link. This document introduces link attribute advertisements that address both of these shortcomings.
This document obsoletes RFC 8919.
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 9479 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
- RFC 9478 Labeled IPsec Traffic Selector Support for the Internet Key Exchange Protocol Version 2
- RFC 9480 Certificate Management Protocol Updates
- RFC 9477 Complaint Feedback Loop Address Header
- RFC 9481 Certificate Management Protocol Algorithms
- RFC 9476 The .alt Special-Use Top-Level Domain
- RFC 9482 Constrained Application Protocol Transfer for the Certificate Management Protocol
- RFC 9475 Messaging Use Cases and Extensions for Secure Telephone Identity Revisited
- RFC 9483 Lightweight Certificate Management Protocol Profile