Many situations arise which may result in abnormally high or unusually distributed traffic levels in the international network, or loss of network capacity, or both. These situations include the following
ITU-T E.413-1988 history
1993ITU-T E.413-1993 INTERNATIONAL NETWORK MANAGEMENT – PLANNING
1988ITU-T E.413-1988 International Network Management - Planning - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 5 pp