ADTRAN AOS Version R10.1.0 Command Reference Manual page 1091

Command Reference Guide
ip rtp quality-monitoring round-trip-delay
Use the ip rtp quality-monitoring round-trip-delay command to enable packet round-trip calculations
for voice quality monitoring (VQM) and to specify the type of round-trip delay testing. Use the no form of
this command to disable VQM round-trip delay calculations. Variations of this command include:
ip rtp quality-monitoring round-trip-delay icmp-ping
ip rtp quality-monitoring round-trip-delay icmp-timestamp
Syntax Description
icmp-ping
icmp-timestamp
Default Values
By default, the calculation type is icmp-ping.
Functional Notes
Round-trip delay settings appear in the VQM statistics; however, if Realtime Transport Protocol (RTP)
extended reports (RTCP XR) are also available, the received RTCP XR reports supersede the round-trip
delay settings.
The endpoints and local units must be synchronized (time and date) for the timestamp method to be
accurate. In addition, any firewalls between the voice endpoints must be configured to allow ICMP traffic to
pass.
For more information about VQM round-trip delay calculations, and VQM configuration, refer to the
configuration guide Configuring VQM in AOS available online at
number 2262).
Command History
Release 17.1
Usage Examples
The following example specifies timestamp requests are used to determine round-trip delay:
(config)#ip rtp quality-monitoring round-trip-delay icmp-timestamp
60000CRG0-35E
Specifies the use of Internet Control Message Protocol (ICMP) requests for
calculating round-trip delay.
Specifies the use of ICMP timestamp requests for calculating round-trip
delay.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
Global Configuration Mode Command Set
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