how can Arria10 10GE MAC send the long packet ?

HI,

9600 is referring to jumbo packet. Standard packet still only support 1500.

• https://en.wikipedia.org/wiki/Jumbo_frame

As the Max Tx/Rx frame length bit are 16 bits register, so you should be able to still set it to 9600 but you need to take care of external FIFO depth size to be able to support this large data transfer.

I found out below KDB link that mentioned about the risk in transferring large packet size

• https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/solutions/rd05062016_504.html

Thanks.

Regards,

dlim