Specifying Network Speed; Specifying A Vlan Tag; Specifying An Ntp Server - LifeSize Passport User Manual

Specifying Network Speed

If you choose an option other than Auto for the Administrator Preferences : Network :
General : 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. To work around this issue,
change your Ethernet switch configuration to a setting other than half duplex when
using Auto for the Network Speed preference.

Specifying a VLAN Tag

If you have static virtual local area networks (VLANs) configured in your environment, you
can configure your LifeSize 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 that appear in the user interface 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.
38 LifeSize Passport User Guide