Hello Hans, I have updated the CS v2.0 to v2.1 delta document here: https://redmine.ogf.org/dmsf_files/13507 V3 of the delta document includes two further changes and a clarification– see track changes. Guy Guy Roberts PhD Senior Transport Network Architect Tel: +44 (0)1223 371316 Mob: +44 (0)7881 336417 Skype: guy1965 GÉANT Networks • Services • People Learn more at www.geant.org​<http://www.geant.org/> ​GEANT Limited, trading as GÉANT. Registered in England & Wales. Registration Number 2806796. Registered Office – City House, 126-130 Hills Road, Cambridge CB2 1PQ