Polycom RealPresence RMX 4000, Руководство администратора

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Appendix H - Deployment Into Microsoft Environments
Polycom®, Inc. 987
Limit Maximum Resolution for MS SVC Using a System flag
The MAX_MS_SVC_RESOLUTION System Flag can be used to minimizing the resource usage by
overriding the default resolution selection and limiting it to a lower resolution
.
Range: AUTO, CIF, VGA, HD720, HD1080
Default: AUTO
The MAX_MS_SVC_RESOLUTION System Flag operates independently from the
MAX_RTV_RESOLUTION System Flag allowing differing maximum resolutions to be selected for the MS
SVC and RTV protocols .
If you want to modify System Flag values, the flags must be added to the System Configuration file. For
more information see:
Modifying System Flags
and Controlling Resource Allocations for Lync Clients Using
RTV Video Protocol .
FEC (Forward Error Correction)
FEC is supported for RTV and MS SVC video protocols.
●
FEC will be automatically turned on by the VSR (Video Source Request) message.
Redundant Audio Data (RED) is supported for the following Audio CODECS:
●
G.722
●
G.711A
●
G.711U
The Collaboration Server transmits RED when packet loss is reported and stops sending RAD when packet
loss is stopped.
For more information see Lost Packet Recovery .
IPv6 Support
In addition to IPv4, IPv6 is supported in Lync 2013 environments.
Following IP modes are supported for all network connections—ICE, Media, Management, Signaling, etc.:
●
IPv4 only
●
IPv6 only
●
IPv4 & IPv6
As in previous versions, IPv4 Candidates are advertised first in the SDP.
IPv6 is not supported by Lync 2010. All dial out calls from the Collaboration Server are considered Lync
2010 calls and utilize IPv4.
Dial out calls from DMA to Lync environments are considered to be dial in calls from the Collaboration
Server perspective.
The ANAT (Alternative Network Address Types) option is not applicable in Lync environments.
For more information see IPv6 Addressing Guidelines .
DHCPv6 Support for Auto IPv6 Address Assignment
DHCPv6 Auto IPv6 Addresses Assignment, as required by Lync 2013 environments is supported.