This object specifies the padding that needs to be inserted
into each ethernet frame of the IP SLA operation.
The total ethernet frame size of the IP SLA operation is:
CFM_header + TLVs + si_length + dm_length + padding size
where dm_length = number of octets of the maintenance domain name
si_length = number of octets of the service instance name
CFM_header = 8 octets
TLVs = 60 octets for 'ethernetPing'
45 octets for 'ethernetJitter'
If the total frame size exceeds 1500, only 1500 will be
sent to the target MEP.