LevelOne GTL-2691 - Manual (Page 1131)

C HAPTER 39 | VLAN Commands
Configuring Port-based Traffic Segmentation
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C OMMAND M ODE
Global Configuration
C OMMAND U SAGE
◆ 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.
◆ When traffic segmentation is disabled, all ports operate in normal
forwarding mode based on the settings specified by other functions
such as VLANs and spanning tree protocol.
◆ Enter the traffic-segmentation command without any parameters to
enable traffic segmentation. Then set the interface members for
segmented groups using the traffic-segmentation uplink/downlink
command.
◆ Enter no traffic-segmentation to disable traffic segmentation and
clear the configuration settings for segmented groups.
E XAMPLE
This example enables traffic segmentation globally on the switch.
Console(config)#traffic-segmentation
Console(config)#
Table 126: 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 *
* The forwarding state for uplink-to-uplink ports is configured by the traffic-
segmentation uplink-to-uplink command.
Forwarding
Session #2
Downlink Ports
Blocking Blocking Blocking Forwarding Blocking
Session #2
Uplink Ports
Blocking Blocking/
Forwarding *
Forwarding Forwarding Forwarding
Normal Ports Forwarding Forwarding Forwarding Forwarding Forwarding