hello ti employee，

 my problem is :

when Two 10g ethernet work together, two port Ping network are both intermittent. when only one port  work, port A Ping for half an hour and have no problem,  port B Ping network are intermittent.
The port A  is ok when two port work together but not ok when work alone.
My work environment is: two 66ak14 two 10g ethernet port connected, two 66ak14 are running Linux, the current use of the arm frequency is 1GHz.

I found the following description in spruhj5 (10g net user's manual) 2.1.1:

The 10GbE subsystem clock is used for most of the logic in the 10GbE subsystem. It is targeted to run at 500 MHz. The clock however can be configured at lower speeds, but it will affect throughput. Minimum frequency to guarantee 10Gb switch rate is 350mhz. However, at this frequency full 20Gb forwarding rate (10Gb x2 ports) is not guaranteed。

from the description ,my understanding  is two port can work at the same time when the clock is 500MHz , and 350MHz can not , Is my understanding is  right?
I found in the manual, subsystem clock 10GbE (Domain Vbus) and the VBUS clock  for 1/3 of the arm frequency , so the clock is 333MHz. But the highest frequency of arm 1.4GHz, 1/3 of 1.4GHz is 466MHz, less than 500MHz, will it be a problem?

whether my understanding is right or not ?when I want to use two 10g ethernet ,how to config ?

thanks for you help.