[Asterisk-Users] TDMoE hangs the machine

[Bruno Fontana]

C. Maj wrote:

>On Sun, 16 May 2004, Bruno Fontana waxed:
>
>  
>
>>I was trying to use TDMoE and I lasted with two problems. First of all I 
>>can't configure the dynamic span to use CAS signalling but documentation 
>>(by Mark) says that you can use any type of signalling (and this 
>>includes CAS I guess).
>>    
>>
>
>Well just pick one that works I guess.  You aren't limited
>to T1/E1 d-channel / b-channel ratios, either.  Meaning you
>can create 200 b-channels and still have the signalling over
>only 1 d-channel.  Not that you'll ever be able to push that
>much over the wire...
>
>  
>
>>My second problem is related that  my  Linux system crashes frequently 
>>due to  ztdynamic and friends. I'm using a 2.4.26 version kernel and 
>>zaptel drivers 0.9.1 (Gentoo distro). I've looked for a solution or a 
>>clue in list archives but there was nothing.
>>Any ideas?, someone who  had a similar problem and have found a solution?
>>    
>>
>
>I've found it unstable on high loads, in excess of 50 channels
>between smoking P4s, with or without any zaptel card drivers
>loaded.  I would like to try blaming it on the switch, and
>possibly the NICs both facing the public network, but it was
>still 0 hops between boxes.  Might have better luck on
>separate, better ethernet cards over a private network.
>
>TDMoE is very noisy:
>
>    http://www.marko.net/asterisk/archives/0301/0566.html
>
>There's an ancient TDMoE howto here:
>
>    http://www.convergence.com.pk/TDMoE-HOWTO
>
>It's old, but so is the code for ztdynamic, so I assume it
>just works for a lot of people.  That or people have dropped
>it in favor of something like trunking on IAX2.
>
>--Chris
>
>  
>
Trunking over IAX2 sounds very interesting, but it can't "tunnel" channels as TDMoE does, does it?. I mean. Do I need Asterisk to pick up the calls and redial or can I pass channels as is. I still need channels to be CAS signaled.

-Bruno