This standard specifies the security protection requirements for IP bearer networks in terms of security level protection, security risk assessment, disaster backup and recovery, etc. This standard applies to public IP bearer networks.
YD/T 1746-2008 history
2014YD/T 1746-2014 Security protection requirements for the IP bearer network
2013YD/T 1746-2013 IP Bearer Network Security Protection Requirements
2008YD/T 1746-2008 Security Protection Requirements for tne IP Bearer Network