Reviewer: Alexey Melnikov
Review result: Ready with nits

Hi. I have reviewed this document as part of the security directorate's
ongoing effort to review all IETF documents being processed by the IESG. 
These
comments were written primarily for the benefit of the security area 
directors.
Document editors and WG chairs should treat these comments just like any 
other
last call comments.

As the document describes an extension to improve scaling of IS-IS, I 
agree that
it doesn't add new security considerations. However the document depends on
functionality provided by [I-D.ietf-lsr-dynamic-flooding], so 
referencing its Security
Considerations seems appropriate.