[asterisk-users] ADSL routers with integrated SIP QoS for other devices

[bails]

Andrew Kohlsmith wrote:
> On Saturday 28 April 2007 11:22 am, Chris Bagnall wrote:
>> Thanks to all who replied to my thread a few days ago "SIP devices with
>> packet loss tolerance". One of the suggestions that came out of that thread
>> was to replace routers at users' premises with ones that support QoS.
> 
> Sangoma S518 (internal PCI) on a Linux box with iproute2/iptables/tc or BSD 
> with pf.  These are the best solutions, IMO.
> 
> The latest Linux kernels also have SIP connection tracking/matching, so it 
> should be possible to mark packets and prioritize based on iptables matching.  
> I have not done this just yet, as the latest 2.6.20/2.6.21 kernels do not 
> play nice with the wanrouter drivers.
> 
> (note: there was a recent patch to 2.6.20.4 which apparently has much better 
> SIP matching, and has been tested successfully with Asterisk.  I have not 
> tested it yet, and the iptables guys have rejected the patch as their 
> direction for packet matching is shifting significantly in the near future.  
> It can be found at 
> http://thread.gmane.org/gmane.comp.security.firewalls.netfilter.devel/18860.)
> 
> I'm still looking for a miniPCI ADSL chipset that Linux can use, or an 
> actual "raw" ADSL non-PCI chipset that I can design into an embedded system.  
> If anyone has any leads, please don't hesitate to contact me!

Any chance we can get to see this as it sounds just what i'm looking for?

> 
> If you're curious, I have my rc.tc script for Linux up on 
> http://mixdown.ca/~andrew/rc.tc. 

Forbidden
You don't have permission to access /~andrew/rc.tc on this server.

  It's loosely based off of wondershaper, but
> works much better, IMO.  It does host-based prioritization for VOIP, puts 
> mail just underneath bulk traffic, and P2P beyond that (if you have the p2p 
> connmark stuff set).  I can completely saturate DSL links with the S518 with 
> this config without appreciable VOIP degradation.
> 
> Even without an S518, this script works well with external ADSL/cable modems.  
> You may have to play with the upload rate; some cheap ADSL modems will 
> start "blocking" your upstream traffic beyond as little as 50% of the 
> upstream rate.
> 
> -A.
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
> 

Thanks

Bails