The IESG has approved the following document: - 'Link State protocols SPF trigger and delay algorithm impact on IGP micro-loops' (draft-ietf-rtgwg-spf-uloop-pb-statement-10.txt) as Informational RFC This document is the product of the Routing Area Working Group. The IESG contact persons are Alvaro Retana, Deborah Brungard and Martin Vigoureux. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-rtgwg-spf-uloop-pb-statement/ Technical Summary Micro-loops are transient forwarding loops that can occur among routers using hop-by-hop forwarding. This document analyzes the impact of using different Link State IGP implementations in a single network with respect to micro-loops. The analysis focuses on the SPF triggers and SPF delay algorithms. Working Group Summary The final version of the document has strong consensus in the WG. Input from the WG was incorporated in the document. Document Quality The document is of high quality. Two Routing Area Directorate reviews were done. The first was done by Mike Shand around the time of working group adoption. This review pointed out some issues related to terminology and phrasing, as well as a generalization about the size of networks. These issues were addressed by the authors. The main issue raised by the second review (done by Tomonori Takeda) was the fact the document was classified as Standards Track. This was addressed by changing it to Informational. Personnel Document Shepherd: Chris Bowers Responsible Area Director: Martin Vigoureux