3Com 5500 SI - Switch - Stackable, Configuration Manual

Page: 104 / 686

104 C
HAPTER
6: VLAN O
PERATION
Enabling/Disabling Voice VLAN Security Mode
In security mode, the system can filter out the traffic whose source MAC is not OUI
within the Voice VLAN, while the other VLANs are not influenced. If security mode is
disabled, the system cannot filter anything.
Perform the following configuration in System View.
By default, the Voice VLAN security mode is enabled.
Enabling/Disabling Voice VLAN Auto Mode
In auto mode, if you enable Voice VLAN features on a port and there is IP Phone
traffic through the port, the system automatically adds the port to the Voice VLAN.
But in manual mode, you have to perform the above operation manually.
Perform the following configuration in System View.
By default, Voice VLAN auto mode is enabled.
Setting the Aging Time of Voice VLAN
In auto mode, using the follow command, you can set the aging time of Voice VLAN.
After the OUI address, the MAC address of IP Phone, is aged on the port, this port
enters the aging phase of Voice VLAN. If OUI address is not learned by a port within
the aging time, the port is automatically deleted from Voice VLAN. This command
does not operate in manual mode.
Perform the following configuration in System View.
The default aging time is 1440 minutes.
Table 93 Configuring the Voice VLAN Security Mode
Operation Command
Enable Voice VLAN security mode
voice vlan security enable
Disable Voice VLAN security mode
undo voice vlan security enable
Table 94 Configuring Voice VLAN Auto Mode
Operation Command
Enable Voice VLAN auto mode
voice vlan mode auto
Disable Voice VLAN auto mode (that is, to enable
manual mode)
undo voice vlan mode auto
Table 95 Configuring the Aging Time of Voice VLAN
Operation command
Set the aging time of Voice VLAN
voice vlan aging minutes
Restore the default aging time
undo voice vlan aging