Using the following formulas:
InboundMsgSizeupdate = InboundMsgOverhead + ColOverhead + RowWidth + RowWidthChanged
OutboundMsgSizeupdate = OutboundMsgOverhead + RowWidth + RowWidthChanged + (NumSites*8)
The calculations for updates for each site are:
InboundMsgSizeT1 = 380 + 450 + 200 + 100 = 1130 bytes
InboundMsgSizeT2 = 380 + 450 + 400 + 200 = 1430 bytes
InboundMsgSizeT3 = 380 + 6600 + 1500 + 1000 = 9480 bytes
OutboundMsgSizeT1 = 200 + 200 + 100 + 24 = 500 bytes
OutboundMsgSizeT2 = 200 + 400 + 200 + 16 = 800 bytes
OutboundMsgSizeT3 = 200 + 1500 + 1000 + 16 = 2700 bytes