Instruction Manual
44
•
Isolated (Protected) ports are:
•
Ports from which traffic can only be forwarded to promiscuous ports in
the private VLAN.
•
Ports which can receive traffic from only promiscuous ports in the private
VLAN.
The configuration of promiscuous and isolated ports applies to all private VLANs.
When traffic comes in on a promiscuous port in a private VLAN, the VLAN mask
from the VLAN table is applied. When traffic comes in on an isolated port, the
private VLAN mask is applied in addition to the VLAN mask from the VLAN table.
This reduces the ports to which forwarding can be done to just the promiscuous
ports within the private VLAN.
Applying Protected Ports Settings
1.
On the
Protected Port Settings
page, enter the following information:
•
Port List
: Enables you to select the port from a drop-down list.
•
Port Type:
Enables you to define whether your selected port is protected.
•
Protected
: A single stand-alone VLAN that contains one promiscuous
port and one or more isolated (or host) ports. This VLAN conveys traffic
between the isolated ports and a lone promiscuous port.
•
Unprotected
: A promiscuous port can communicate with all the
interfaces within a private VLAN. This is the default setting.
2.
Click on the
Apply
button to apply changes to the protected port.
Viewing Protected Ports Status
•
On the Protected Port Status page, the following information will be displayed:
•
Protected Ports:
Displays the current protected ports.
•
Unprotected Ports:
Displays the current unprotected ports.
Energy Efficient Ethernet (EEE)
EEE is a power saving standard used to reduces power consumption during low
periods of data activity or periods when no data is being transferred (transmitters
in the port remain active when no data is being transferred). EEE communicates
a protocol to the port enabling the port to function in a Low Power Idle Mode,
conserving power during periods of low or no data activity. When a port needs to
transmit data, EEE reactivates or wakes the port out of Low Power Idle Mode. The
time it takes for EEE to transition the port out of Low Power Idle Mode is referred
to as wake up time. Wake up time is defaulted to 17 - 30 μs depending on the link.
