YD/T 1758-2008 Security Protection Requirements for the Support Unit of Core Production Network

YD/T 1731-2008 Disaster backup and recovery implementation guide for telecommunications networks and the internet YD/T 1754-2008 The requirements for the security level protection of the physical environment for telecommunications networks and the internet YD/T 1756-2008 Telecommunications network and Internet management security level protection requirements YD/T 1728-2008 Telecom and Internet Security Protection Management Guidelines YD/T 1729-2008 Implementation Guide for Classified Security Protection of Telecom Network and Internet YD/T 1730-2008 Guidelines for Implementing Security Risk Assessment for Telecom Networks and the Internet