Haha cool, I'm the Belgian guy in Sofia you've met before, i asked for
exactly the same reason as you :)
Zoa.
Anton Tinchev wrote:
Zoa wrote:
Can you tell us how you do the testing ?
3-4 different ways. All gives same results, so test are pretty valid.
1. Interrupt counting inside the PC.
2. TDMoE packet counting on the switch.
3. External TDMoE equipment connected thru extreme network swich.
The card of the PC and the device only connected to the switch. The
switch filters all packets except TDMoE to de device.
Calibrated oscilloscope conected to the interupt leg of the network
chip. All coalescing/etc disabling.
4. Diagnostic results from firmware of the device.
5. ToDo test - oscilloscope directly conected to pads inside the PC,
but needs mechanical work for each platform/type.
6. ToDo test - some driver relays the clock to simple hardware card in
the PC and oscilloscope connected to it.
All 4 tests reports same clock difference/clock misses etc.
Tested at 3-4 types of hardware - different chipsets/processors. Same
results. The are sheduled tests to around 30 more platforms, but
pretty sure that the results will be similar.
P.S.
The device is TDMoE FXS/FXO modular channel bank currently ending
development and starting production.
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