This European Telecommunication Standard (ETS) identifies the minimum set of functions required to operate and maintain the Physical Layer and the Asynchronous Transfer Mode (ATM) layer aspects of the Broadband Integrated Services Digital Network (B-ISDN) User-Network Interface (UNI) as well as the individual Virtual Path (VP) and the Virtual Channel (VC) connections that may be routed through the B-ISDN.
PUBLISHED
SSH ETS 300 404:1997 ed.2
60.60
Standard published
Jun 19, 2026