A new Request for Comments is now available in online RFC libraries. RFC 7981 Title: IS-IS Extensions for Advertising Router Information Author: L. Ginsberg, S. Previdi, M. Chen Status: Standards Track Stream: IETF Date: October 2016 Mailbox: ginsberg@cisco.com, sprevidi@cisco.com, mach.chen@huawei.com Pages: 10 Characters: 20235 Obsoletes: RFC 4971 I-D Tag: draft-ietf-isis-rfc4971bis-04.txt URL: https://www.rfc-editor.org/info/rfc7981 DOI: http://dx.doi.org/10.17487/RFC7981 This document defines a new optional Intermediate System to Intermediate System (IS-IS) TLV named CAPABILITY, formed of multiple sub-TLVs, which allows a router to announce its capabilities within an IS-IS level or the entire routing domain. This document obsoletes RFC 4971. This document is a product of the IS-IS for IP Internets Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC