Hello Richard, We have now updated the NSI CS v2.1 document with all necessary changes. We would also like the delta document to be published as an informational document. The two open redmine tracker issues are: Delta document is here: https://redmine.ogf.org/issues/323 NSI CS v2.1 is here: https://redmine.ogf.org/issues/308 Could you please review the changes from v2.0 to v2.1 and let us know if these documents are ready for public comment? Thanks, Guy Guy Roberts PhD Senior Network Architect Tel: +44 (0)1223 371316 Mob: +44 (0)7881 336417 Skype: guy1965 [TNC17_email_banner_earlybird] Networks • Services • People Learn more at www.geant.org​<http://www.geant.org/> ​GÉANT is the collective trading name of the GÉANT Association in Amsterdam, NL, and of GEANT Limited in Cambridge, UK GÉANT Vereniging (Association) is registered in the Netherlands with the Chamber of Commerce in Amsterdam<http://www.kvk.nl/english/traderegister/default.asp>. Registration number: 40535155. Registered office: Singel 468 D, Amsterdam 1017 AW, The Netherlands GEANT Limited is registered in England & Wales. Registration number: 2806796. Registered office: City House, 126-130 Hills Road, Cambridge CB2 1PQ, UK.