Rockwell Automation 1783-EMS08T Stratix 6000 Ethernet Managed Switch User Manual - Manual (Page 64)

64 Rockwell Automation Publication 1783-UM001D-EN-P - January 2013
Chapter 4 Switch Management
Port Segmenting
When network bandwidth becomes critical, port segmenting is used to eliminate
traffic caused by multicast and broadcast Ethernet traffic. With this feature, you
can partition the switch ports into different private virtual networks.
To access the Port Segmenting tab, from the navigation pane, expand the Switch
Configuration folder and click Port Segmenting.
For each received packet, the switch resolves the destination address and
determines the appropriate port. The port segmenting configuration is then
checked to see if the destination address is configured to receive traffic from the
source port.
IMPORTANT The virtual local-area network (VLAN) feature used in earlier firmware
revisions has been renamed port segmenting. As of firmware revisions 0.11
and 0.53, a new VLAN feature is provided for only the 1783-EMS08T switch. For
more information about VLAN, refer to
VLAN Configuration on page 57 .
EXAMPLE A FLEX™ I/O module is connected to port 2 on the 1783-EMS08T switch, and
the I/O module is communicating with a ControlLogix module on port 3. You
want the ControlLogix module on port 3 to receive traffic from the FLEX I/O
module on port 2. You can use port segmenting to prevent other devices on
the network from receiving packets from the FLEX I/O module.