[Asterisk-Users] RE: outbound IAX calls bog down DSL

[d.redmore at att.net]

Thanks for the reply Greg...  I sure didn't mean to imply that I thought this 


was an issue with NuFone - I have been extremely happy and excited about the 


service and support.  I'll echo the sentiment I believe bkw expressed - NUFONE 


ROCKS!




That said, I'm just curious why a call would cause other traffic to slow down 


so much...  I'm not running any other internet services (i.e. kazaa) just web 


surfing...  One call over IAX to nufone causes web surfing to slow to the 


point that it is basically unusable while the call is up.  All traffic is 


routed through a box running a 850mhz Duron w/ 128megs and the Asterisk box is 


a dedicated machine running at 166mhz w/ 50megs. All traffic is 


switched/100meg except for the NAT/firewall/DSL modem which is 10meg.  So 


packets from desktop to NuFone have to travel the following path - 


desktop(SIP) -> router -> asterisk(SIP/IAX2) -> router -> NAT/firewall/DSL 


modem -> DSL -> NuFone(IAX2).  If I run KSnuffle on the router I see about 


40Kbytes/sec sustained on the eth0 interface that is handling all the traffic 


while the call is up.  The * box and the desktop are on different subnets 


which is why everything has to traverse the router so much.  




thanks,  dave




>You may want to look into prioritizing voice packets over "data" packets.


>Until you turn on some kind of traffic shaping dont "burn up your bandwidth"


>while making calls. This means limit your kazaa and other kinds of peer to


>peer or wares hoarding. What are the specs on the box you are running


>Asterisk on? Run a traceroute and find out what path your packets are taking


>to get to us.


>


>If anyone is having issues with NuFone please direct them offlist to


>support at nufone.net.




>Greg Merriweather


>The NuFone Network


>G.Merriweather at nufone.net


>519-251-8225 x 3000


>IM: shido6 at msn.com