11
Avaya Video Communications Systems Administrator Guide
Specifying Network Speed
If you choose an option other than
Auto
for the
Administrator Preferences : Network :
Network Speed
preference, ensure that it matches the speed and duplex configured on
your network switch.
Note:
If your Ethernet switch is configured for half duplex, you may experience poor
quality video when placing calls greater than 512 Kb/s.
Specifying a VLAN Tag
If you have static virtual local area networks (VLANs) configured in your environment, you
can configure your Avaya system to apply a VLAN tag to outgoing packets and only accept
incoming tagged packets that have the same VLAN identifier. To enable this feature,
navigate to
Administrator Preferences : Network : General : VLAN Tag
and specify the
VLAN identifier of the VLAN to which the system is assigned. The value is a number in the
range 1 through 4094.
Note:
If you set or modify the
VLAN Tag
preference, the system reboots when you
navigate to another screen.
Specifying an NTP Server
The system date and time appear in the user interface and are automatically set if one of the
following conditions exists:
•
The
Administrator Preferences : Network : General : DHCP
preference is set to
Enabled
, and the DHCP server can pass an NTP server address to your system.
- or -
•
The hostname or IP address of an NTP server is specified in
Administrator
Preferences : Network : General : NTP Server Hostname
.
Note:
An NTP server address that a DHCP server passes to your system overrides an
NTP server hostname or address specified in the
NTP Server Hostname
preference.
The
System Information
page displays the IP address of the NTP server that the system
uses.
Note:
The time zone is not set automatically. If you did not specify the time zone for your
system during the initial configuration, the time that appears in the user interface
may not be correct. To specify the time zone manually, refer to "Manually Setting
System Date and Time" on page 16.
