3com 2226 PLUS Guia Do Utilizador
Upgrading the Firmware
41
Table 12 IP Phone Prioritization Options
Option
Description
Enable NBX Phone Pri-
oritization
oritization
Select to automatically detect and
prioritize traffic from all NBX
phones that are connected to the
Switch.
prioritize traffic from all NBX
phones that are connected to the
Switch.
By default, this option is selected.
Enable Phone MAC
Address-based Prioriti-
zation
Address-based Prioriti-
zation
If you are not using NBX phones
and you know the Organizational
Unique Identifier (OUI) for the
phones, select this option, and then
type the OUI in the fields provided.
and you know the Organizational
Unique Identifier (OUI) for the
phones, select this option, and then
type the OUI in the fields provided.
If this option is selected and the
OUI specified, the Switch will auto-
matically detect these phones and
prioritize traffic to and from them.
OUI specified, the Switch will auto-
matically detect these phones and
prioritize traffic to and from them.
An OUI (sometimes called ‘vendor
ID’) is the first 24 bits of a MAC
address for a network-connected
device (in this case, a phone), which
indicate the specific vendor for that
device.
ID’) is the first 24 bits of a MAC
address for a network-connected
device (in this case, a phone), which
indicate the specific vendor for that
device.
Disable Phone Prioritiza-
tion
tion
Select to disable traffic prioritiza-
tion for IP phones on the Switch
tion for IP phones on the Switch
If you change any of these settings, click Apply in the
IP Phone Prioritization section to save your changes.
IP Phone Prioritization section to save your changes.
List of Detected Phones
This section displays the MAC addresses of IP phones
that are detected and given priority by the Switch. To
display a phone that is connected to a port, select the
port from the drop-down list.
that are detected and given priority by the Switch. To
display a phone that is connected to a port, select the
port from the drop-down list.
Upgrading the Firmware
3Com may release upgrade files for the firmware that
is installed on the Switch. These firmware upgrades
normally contain feature enhancements and fixes for
known issues in previous releases.
is installed on the Switch. These firmware upgrades
normally contain feature enhancements and fixes for
known issues in previous releases.
To upgrade the firmware, there are two tasks that
you need to perform:
you need to perform:
1
Download the firmware upgrade file from the 3Com
Web site
Web site
2
Install the new firmware on the Switch
Downloading Firmware Updates
You can periodically check the 3Com Web site
(
(
www.3Com.com
) for firmware updates to the Switch.
To check for and download available firmware
updates:
updates:
1
On the computer that you normally use to access the
Switch’s Web interface, start the Web browser, and
then enter
Switch’s Web interface, start the Web browser, and
then enter
www.3com.com
in the Address or Location
bar.
2
Click Support & Downloads, and then click Down-
loads & Drivers. The Search for Downloads page
appears.
loads & Drivers. The Search for Downloads page
appears.
3
In Enter a Product Number, enter
3C16475BS
, and
then click Quick Search. 3C16475BS is the product
number for 3Com Baseline Switch 2226 Plus.
number for 3Com Baseline Switch 2226 Plus.
The Download Search Results page displays any avail-
able download for the Switch.
able download for the Switch.