Liaison statement
Draft ITU-T Recommendation O.211

State Posted
Posted Date 2005-10-18
From Group ITU-T-SG-4
From Contact Greg Jones
To Group ippm
To Contacts henk@ripe.net
Ccsob@harvard.edu
Response Contact tsbsg4@itu.int
Technical Contact emile.stephan@francetelecom.com
Purpose For information
Attachments COM 4 – LS 38 – E - Draft ITU-T Recommendation O.211
Body
ITU-T Question 4/4 has finalized its work on Draft new Recommendation O.211,
“Test and measurement equipment to perform tests at the IP layer�, which
specifies test packets to assess the packet transfer performance in IP-based
networks. This draft recommendation has been consented during the September
2005 meeting of SG4. Please find it attached. Each test packet contains a
standardized data structure, the IP Performance Measurement Signature (IPPMS),
which includes definitions for timestamps, sequence numbers, and error check
procedures as well as information to identify the measure and the metrics.
Metrics correspond to Y.1540 parameters and those registered in the
IANA-IPPM-METRICS-REGISTRY. The IPPMS definitions are not restricted to
IP-Layer performance measurements, but can be re-used for other frame-or packet
based networks. Question 4/4 is happy to bring this work to your attention and
hope it is useful for your work in this area. Comments are of course welcome.

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