I'm saying that no matter how loaded, a T1 card with a dedicated hardware framer should never generate HDLC framing errors.
So the hardware and/or device drivers are suspect, and I'd start there. On 7/22/10 5:06 AM, Mark Phillips wrote: > That might be your understanding but that's not what I'm doing. > > On 07/21/2010 11:05 PM, Philip Prindeville wrote: >> No, the point is to find if there are any known issues with the hardware >> or device drivers that present themselves across all Linux distros. >> >> >> >> On 7/21/10 8:55 PM, Mark Phillips wrote: >>> Why take it over to another list? The point of this conversation is to >>> prove that AstLinux can manage this config. >>> >>> However, in talking about the asterisk mailing list you've given me an >>> idea. I should try regular Linux/Asterisk (rather than the uC special >>> AstLinux build) on this hardware to see if I get any improvements. >>> >>> Mark >>> >>> On 07/21/2010 09:07 PM, Philip Prindeville wrote: >>>> First, I'd take this conversation over to the asterisk mailing list. >>>> >>>> But what's strange is that most TDM chips include an HDLC framer (or even >>>> two), so the framing is done in hardware, and high CPU usage should not >>>> cause framing errors unless the card (or driver) has a serious design flaw. >>>> >>>> -Philip >>>> >>>> >>>> On 7/21/10 4:56 PM, Mark Phillips wrote: >>>>> If I limit the calls to 2 every 5s and no more than 8 calls I can >>>>> exercise the card reliably. >>>>> >>>>> If I up that to 9 calls I start to get HDLC errors and if I do 10 calls >>>>> the entire span takes a dump and restarts. >>>>> >>>>> The processor on the 5501 becomes too hot to touch at this point (I'm >>>>> running with the cover off) and TOP claims a CPU of 45%. >>>>> >>>>> I'm pretty much decided that this hardware combination cannot handle a >>>>> great deal of call traffic but I'm gonna try and add a small passive >>>>> heat sink to the CPU to see if that makes a difference. >>>>> >>>>> Next stop is an Atom at 1.6ghz >>>>> >>>>> Mark >>>>> >>>>> On 07/21/2010 05:17 PM, Mark Phillips wrote: >>>>>> No idea. It's also not carried by Digium any more. They have the TE120P >>>>>> out now and even that's on an EOL notice. >>>>>> >>>>>> However, the card is still sold by many "dealers" for around $130. >>>>>> >>>>>> I found somebody whom had tested a 4801 running FreeBSD with a TE110P >>>>>> and Asterisk. He was only able to get 2 concurrent calls over the T1. >>>>>> >>>>>> With double the processor speed I guess I should consider myself lucky >>>>>> that I can get 10 calls. In theory I should only get 4. >>>>>> >>>>>> I'm getting an A101U some time next week so will try that. It's current >>>>>> owner claims to have only managed 2 calls with it on a 5501-70. >>>>>> >>>>>> I'll keep you posted. >>>>>> >>>>>> Mark >>>>>> >>>>>> On 07/20/2010 11:20 PM, Matt Riddell wrote: >>>>>>> On 17/07/10 2:52 PM, Mark Phillips wrote: >>>>>>> >>>>>>> Is the TE110P card one of the recent voicebus cards? The latest DAHDI >>>>>>> drivers allow for changing the interrupt rate on the fly which may help >>>>>>> too. >>>>>>> >> ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Astlinux-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/astlinux-users Donations to support AstLinux are graciously accepted via PayPal to [email protected].
