LifeSize Bridge 2200, Руководство администратора

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LifeSize Bridge 2200 Administrator Guide 17
Configuring Your Network
To configure preferences that affect how your system functions with other servers and devices on your
local network, modify the
Network preferences.
Controlling Ethernet
ports Enable or disable each of the four Ethernet ports. Disable the ports that you are not
using. Selecting the port shows the status, current IP address and subnet mask for the
port. You can configure one port at a time or configure up to four network ports for port
redundancy.
Specifying DHCP or a
locally configured IP
address DHCP dynamically allocates and assigns IP addresses. Enable DHCP (if a DHCP
server is present) by selecting
Use DHCP . If you disable DHCP, you must enter the
locally configured IP address and subnet mask (used to partition the IP address into a
network and host identifier).
Specifying network
speed If you do not select Auto negotiate speed and duplex settings , ensure that the
values match the speed and duplex configured on your network switch. Lifesize
recommends that you set
Auto negotiate speed and duplex settings unless your
network specifically requires a fixed speed or duplex setting.
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
selecting
Auto negotiate speed and duplex settings .
Specifying a Virtual
Local Area Network
(VLAN) ID If you have static VLANs configured, 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. Specify the VLAN identifier of the VLAN to which the system is
assigned. The value is a number in the range 1 through 4094.
Network Port
Redundancy Select the checkbox to enable redundancy, specify the ports you are using, and specify
the type of port redundancy. The port status, current IP address, and subnet mask for all
enabled ports appears. Read more at
Configuring Network Port Redundancy .
Default Gateway Specify the default gateway.
Specifying the
hostname and
domain name service
(DNS) servers Enter the hostname of the system and the IP addresses to configure DNS servers. Enter
the domain names to search when resolving hostnames. DNS translates names of
network nodes into addresses; specify this preference to use DNS to resolve the
hostnames to IP addresses.
NOTE:
A system cannot detect a change to its IP address from a change in networks
from a wiring closet or through software, such as a change to a router configuration.
Restricting reserved
ports By default, LifeSize systems communicate through TCP and UDP ports in the range
60000 - 64999. You can restrict the range of UDP and TCP ports that are available for
communication. LifeSize recommends that the range you choose, if other than a subset
of the default range, begins with a port number greater than 10000.
A minimum of 128 ports must be open regardless of the call type or number of
participants.
Configuring Quality
of Service (QoS) Set these preferences according to the settings in your network. You can specify
DiffServ (differentiated services) or IntServ (integrated services) values for audio, video,
and data packets. You can also set the IntServ Type of Service (ToS) preference. By
default,
Network QoS and IntServ ToS are set to None . The range for DiffServ values
is 0 - 63. The range for IntServ values is 0-7.
Adjusting the
maximum
transmission unit
(MTU) of video
packets Video packets that exceed the MTU size for any router or segment along the network
path may be fragmented or dropped, resulting in poor quality video at the receiving
device. You can set the MTU of video packets that your LifeSize system sends. The
default value is 1440 bytes. The valid range is 900 -1500 bytes.