
Configuring Network Use
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Configuring Quality of Service (QoS)
If your network is configured to recognize and prioritize network traffic using
QoS, you can configure the V500 system to mark IP packets with the values
recognized by your network. Keep in mind that enabling QoS on the
V500 system is not enough; all devices in the network path must also be
configured for QoS.
If you are unfamiliar with QoS, Polycom recommends that you do not change
the default settings.
To configure the Quality of Service (QoS) options:
1.
Go to
System > Admin Settings > Network >
IP > Quality of Service
.
2.
Configure these settings:
Setting
Description
Type of Service
Specifies your service type and lets you choose how to set the
priority of IP packets sent to the system:
•
IP Precedence
— Represents the priority of IP packets
sent to the system. The value can be between 0 and 5. If
this setting is selected, enter the value in the
Type of
Service Value
field.
•
DiffServ
— Represents a priority level between 0 and 63. If
this setting is selected, enter the value in the Type of
Service Value field.
Type of Service
Value
Specifies the IP Precedence or Diffserv value for Video, Audio,
and Far End Camera Control.
Maximum
Transmission
Unit Size
Specifies the Maximum Transmission Unit (MTU) size used in
IP calls. If the video becomes blocky or network errors occur,
packets may be too large; decrease the MTU. If the network is
burdened with unnecessary overhead, packets may be too
small; increase the MTU.
Enable PVEC
Allows the system to use PVEC (Polycom Video Error
Concealment) if packet loss occurs.
Enable RSVP
Allows the system to use Resource Reservation Setup Protocol
(RSVP) to request that routers reserve bandwidth along an IP
connection path. Both the near site and far site must support
RSVP in order for reservation requests to be made to routers
on the connection path.
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