User`s guide

DES-3226S Layer 2 Switch CLI Reference
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TRAFFIC SEGMENTATION COMMANDS
Traffic segmentation allows you to further sub-divide VLANs into smaller
groups of ports that will help to reduce traffic on the VLAN. The VLAN rules
take precedence, and then the traffic segmentation rules are applied.
Command Parameters
config
traffic_segmentation
<portlist>
forward_list
null
<portlist>
show
traffic_segmentation
<portlist>