Rockwell-automation Ethernet Design Considerations Reference Manual Manuel d'utilisateur télécharger pdf (Page 57)

Rockwell Automation Publication ENET-RM002C-EN-P - May 2013 57

Ethernet Infrastructure Features Chapter 3

Security Violations

In the event of a security violation with a Stratix 8000 or Stratix 8300 switch, one

of these situations occurs:

• The maximum number of secure MAC addresses that have been

configured for a port have been added to the address table, and a station

whose MAC address is not in the address table attempts to access the

interface.

• An address learned or configured on one secure interface is seen on

another secure interface in the same VLAN. When a violation occurs, the

port goes into the Restrict mode. In this mode, packets with unknown

source addresses are dropped and you are notified that a security violation

has occurred. An SNMP trap is sent, a syslog message is logged, and the

violation counter increments.

In the event of a security violation with a Stratix 6000 switch, the switch notifies

the controller of the event (via an input bit) and the controller program decides

how to proceed (such as shut that switch port down, send an alarm to the HMI,

or shut the machine down). The switch does not make a decision on how to

handle the security violation.

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Rockwell-automation Ethernet Design Considerations Reference Manual Manuel d'utilisateur Page 57