Does any body know how is the crc is calculated for jumbo frames of siz greater than 9K. What algorithm is used for that?
Gigabit Ethernet
Jul 31, 2008
4 Replies
Since it's usually implemented in hardware, and since the hardware doesn't know that it's jumbo until it's done, I'd say it's the same CRC-32.
mac the naïf
doesn't
Thank you for ur reply. But i asked this question becouse when frame size is above 9K,CRC32 will loose its effectiveness. then how can we use that?
Longer frames only _reduce_ the effectiveness of detecting errors, the you should make sure that when using larger than 9 K frames that the raw physical error rate is significantly lower than in a typical installation.
Paul
As you say, ineffectively. That's why jumbo-grams aren't standard, and usually aren't supported above 10K.
mac the naïf
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