Network Router User Manual

BSR 2000 Command Reference Guide Release 1.0
11-50 MGBI 526363-001-00 Rev. B
cable modem updis
The cable modem updis command enables the transmission of an an Upstream
Transmitter Disable (UP-DIS) MAC layer message that disables a specified cable
modem’s upstream transmitter. Upon receipt of an UP-DIS message, the cable modem
autonomously disables its upstream transmitter. Once disabled through an UP-DIS
message, the cable modem’s upstream transmitter can only be re-enabled by power
cycling the cable modem.
The cable modem updis command is not intended to be a replacement for existing
mechanisms for controlling a subscriber’s service. The cable modem updis
command provides an additional tool to protect against some forms of denial of
service, such as a virus propagated across the Internet, that cannot be controlled with
existing management mechanisms.
Group Access
MSO
Command Mode
Privileged EXEC
Command Line Usage
cable modem updis <mac>
Command Syntax
mac the cable modem MAC address in the form of
xxxx.xxxx.xxxx