FCM9002 USER MANUAL
76-02-095 Rev.B
Page 122 of 145
4.6.2.9.6 Max Delay Variation
The FCM9002 uses Y.1731 to measure the round trip delay, and uses a
comparison of the flight time of the current frame to the previous frame to
determine the variation.
The Max Delay Variation configuration item defines the maximum variation
allowed by the SLA, above this amount of variation and alarms will be generated
to indicate a violation of SLA.
4.6.2.9.7 Availability
The availability is calculated according to MEF10.2 and is a measure of the
ability to comply with the SLA, An available second is defined as a second during
which the link is available, and that the FLR, Delay and DV are all compliant.