Cisco WRED MIB - Overview Cisco Weighted Random Early Detection/Drop is a method which avoids traffic congestion on an output interface. Congestion is detected by computing the average output queue size against preset thresholds. WRED support are on the IP fast switching and IP flow switching only. It does not apply to IP process switching. This MIB incorporates objects from the Cisco WRED line interfaces. Its purpose is to provide Weighted Random Early Detection/Drop packet configuration and packet filtering information. WRED are configured/enabled through the CLI command. Defaults configuration values are assigned and values can be modified through additional CLI commands.