User guide

© 2010 Ingenieurbüro Für Ic-Technologie Page 82
What’s theoretical possible
 1000 Million Bit/s on the line
− 119,2 MByte/s gross amount (1 MByte = 1048576 Byte)
− without the minimum Interframe Gap (12 byte)
 For a 1518 Byte Frame the rate drops to  118 MByte/s
− without the Preamble, Address, Typ, CRC (another 26 byte)
 For a 1518 Byte Frame the rate drops to  116 MByte/s
− without the IP Header (20 byte)
 For a 1518 Byte Frame the rate drops to  115 MByte/s
− without the UDP Header (8 byte)
 For a 1518 Byte Frame (1472 byte load)
− the rate drops to  114 MByte/s UDP-Data
 For a 64 Byte Frame (only 18 byte load)
− the rate is down to  25 MByte/s
  Frame size should be as large as possible
− using jumboframes when appropriate (take care for switches ..)