Broadcast Storm Shuts Down DCS Consoles
|Event Year:||1997||Reliability:||Likely But Unconfirmed|
|Industry Type:||Pulp and Paper|
The facility lost communications to the operator consoles on a steam plant DCS. The problem was believed to be caused by an incorrectly configured Windows 95 workstation in another mill area that generated high levels of broadcast packets.
The DCS had to be removed from the mill network, preventing process data from being transferred to the business systems.
|Action Description:||Installation of separate subnets and VLANs for process control|