This object represents the native payload size that needs to
be put on the packet.
This value will be configured as
rttMonEchoAdminPktDataRequestSize for all the RTT operations
configured by the current Auto SAA L3 MPLS VPN.
The minimum request size for jitter probe is 16. The maximum
for jitter probe is 1500. The default request size is 32 for
jitter probe.
For echo and pathEcho default request size is 28.
The minimum request size for echo and pathEcho is 28 bytes.