CLI Reference Guide-R01

Chapter 9 | General Security Measures
Port-based Traffic Segmentation
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traffic-segmentation This command enables traffic segmentation. Use the no form to disable traffic
segmentation.
Syntax
[no] traffic-segmentation
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
◆ Traffic segmentation provides port-based security and isolation between ports
within the VLAN. Data traffic on the downlink ports can only be forwarded to,
and from, the designated uplink port(s). Data cannot pass between downlink
ports in the same segmented group, nor to ports which do not belong to the
same group.
◆ Traffic segmentation and normal VLANs can exist simultaneously within the
same switch. Traffic may pass freely between uplink ports in segmented groups
and ports in normal VLANs.
◆ When traffic segmentation is enabled, the forwarding state for the uplink and
downlink ports assigned to different client sessions is shown below.
Table 67: Commands for Configuring Traffic Segmentation
Command Function Mode
traffic-segmentation Enables traffic segmentation GC
traffic-segmentation session Creates a client session GC
traffic-segmentation uplink/
downlink
Configures uplink/downlink ports for client sessions GC
traffic-segmentation
uplink-to-uplink
Specifies whether or not traffic can be forwarded
between uplink ports assigned to different client
sessions
GC
show traffic-segmentation Displays the configured traffic segments PE
Table 68: Traffic Segmentation Forwarding
Destination
Source
Session #1
Downlinks
Session #1
Uplinks
Session #2
Downlinks
Session #2
Uplinks
Normal
Ports
Session #1
Downlink Ports
Blocking Forwarding Blocking Blocking Blocking
Session #1
Uplink Ports
Forwarding Forwarding Blocking Blocking/
Forwarding
*
Forwarding