Polycom VSX Series Manual De Usuario

 Configuring Network Use

3 - 15

Set the Quality of Service options for the way your network handles IP packets 

during video calls. 

Go to System > Admin Settings > Network > IP > Quality of Service.

Configure these settings:

Specifies your service type and lets you choose how to set the 
priority of IP packets sent to the system for video, audio, and 
far-end camera control:
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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.

Specifies the IP Precedence or Diffserv value for Video, Audio, 
and Far End Camera Control. 

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.

Allows the system to use PVEC (Polycom Video Error 
Concealment) if packet loss occurs.

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.