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Configuring Protected Ports
The Protected Port feature is used to prevent ports from forwarding traffic to each other, even
when they are on the same VLAN. Ports may be designated as either protected or unprotected.
Ports are unprotected by default. Multiple groups of protected ports are supported.
Protected Port Operation
Ports that are configured to be protected cannot forward traffic to other protected ports in the
same group, regardless of having the same VLAN membership. However, protected ports can
forward traffic to ports which are unprotected (not listed in any group). Protected ports can also
forward traffic to protected ports in a different group, if they are in the same VLAN. Unprotected
ports can forward traffic to both protected and unprotected ports. A port may belong to only one
group of protected ports.
This feature only applies to ports within a switch. It does not apply across multiple switches in a
network.
Commands
For information about...
set port protected
show port protected
clear port protected
set port protected name
show port protected name
clear port protected name
set port protected
Use this command to specify a port to be protected and assign the port to a group of protected
ports. A port can be assigned to only one group.
Syntax
set port protected port-string group-id
Parameters
port‐string
group‐id
Defaults
None.
Mode
Switch command, read‐write.
Specifies the port or ports to be protected.
Specifies the id of the group to which the ports should be assigned. Id can
range from 0 to 2.
Configuring Protected Ports
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D-Series CLI Reference 4-47
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