Popoviciu, et al. Informational [Page 16] RFC 5180 IPv6 Benchmarking Methodology May 2008 Appendix A. Theoretical Maximum Frame Rates Reference This appendix provides the formulas to calculate and the values for the theoretical maximum frame rates for two media types: Ethernet and SONET. A.1. Ethernet The throughput in frames per second (fps) for various Ethernet interface types and for a frame size X can be calculated with the following formula: Line Rate (bps) ------------------------------ (8bits/byte)*(X+20)bytes/frame The 20 bytes in the formula is the sum of the preamble (8 bytes) and the inter-frame gap (12 bytes). The throughput for various Ethernet interface types and frame sizes: Size 10Mb/s 100Mb/s 1000Mb/s 10000Mb/s Bytes pps pps pps pps 64 14,880 148,809 1,488,095 14,880,952 128 8,445 84,459 844,594 8,445,945 256 4,528 45,289 452,898 4,528,985 512 2,349 23,496 234,962 2,349,624 1024 1,197 11,973 119,731 1,197,318 1280 961 9,615 96,153 961,538 1518 812 8,127 81,274 812,743 1522 810 8,106 81,063 810,635 2048 604 6,044 60,444 604,448 4096 303 3,036 30,396 303,691 8192 152 1,522 15,221 152,216 9216 135 1,353 13,534 135,339 Note: Ethernet's maximum frame rates are subject to variances due to clock slop. The listed rates are theoretical maximums, and actual tests should account for a +/- 100 ppm tolerance. Popoviciu, et al. Informational [Page 17] RFC 5180 IPv6 Benchmarking Methodology May 2008