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Administrator’s Guide Addendum for the Polycom VVX 1500 Business Media Phone
1 - 21
Quality of Service <qos/>
These new configuration attributes are defined as follows:
• This parameter apply to Video RTP packets. This parameter controls the
802.1p/Q user_priority field.
• These parameters apply to RTP packets. These parameters control the
“type of service” field in outgoing packets.
Attribute
Permitted
Values
Default Interpretation
qos.ethernet.rtp.video.user_priority 0-7 5 User-priority used for Video RTP
packets.
Attribute
Permitted
Values
Default Interpretation
qos.ip.rtp.video.dscp 0 to 63 or
EF or
any of
AF11,AF12,
AF13,AF21,
AF2 2,AF23,
AF31,AF32,
AF33,AF41,
AF42,AF43
Null This parameter allows the DSCP of
packets to be specified. If set to a
value, this will override the other
qos.ip.rtp.video
… parameters.
Default of Null which means the
other
qos.ip.rtp.video
…
parameters will be used.
qos.ip.rtp.video.min_delay 0, 1 1 If set to 1, set min-delay bit in the IP
TOS field of the IP header, or else
don’t set it.
qos.ip.rtp.video.max_throughput 0, 1 1 If set to 1, set max-throughput bit in
the IP TOS field of the IP header, or
else don’t set it.
qos.ip.rtp.video.max_reliability 0, 1 0 If set to 1, set max-reliability bit in
the IP TOS field of the IP header, or
else don’t set it.
qos.ip.rtp.video.min_cost 0, 1 0 If set to 1, set min-cost bit in the IP
TOS field of the IP header, or else
don’t set it.
qos.ip.rtp.video.precedence 0-7 5 If set to 1, set precedence bits in the
IP TOS field of the IP header, or
else don’t set them.