[Asterisk-Users] Problems with TDM400P card

[Rich Adamson]

> On Fri, April 29, 2005 4:58 pm, GEOFFREY SACHS said:
> > I would also be interested in alternatives to the Tdm400p. I have had endless
> > problems with a tdm400p card not being able to get the zttest numbers above
> > 99.975 and as a result not being able eliminate an intermitent but consistent echo.
> > I have tried to date 4 different motherboard and hardware combinations as
> > well as different linux versions to no avial.I would welcome some feedback on this.
> 
> Since there appear to be several combinations of hardware and operating system
> which don't work well, here is a combination which appears to work fairly well:
> 
> Intel 925XCV mb
> 
> P-4 560 (3.6 gHz)
> 
> wcfxs0: <Wildcard TDM400P REV E/F>
> 
> FreeBSD 5.4-STABLE
> 
> zttest -v
> Opened pseudo zap interface, measuring accuracy...
> 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% 
> 8192 samples in 8192 sample intervals 100.000000% ^C
> --- Results after 10 passes ---
> Best: 100.000000 -- Worst: 100.000000 -- Average: 100.000000
> 
> hope this helps

Kim, that is helpful. I'm not a FreeBSD user, but does it have a
vmstat utility?

If so, what do see if you run 'vmstat 1' and let it run for about
twenty seconds?  Do you see the cpu utilization going to about
100% every five or six seconds?

Rich