asterisk users - Apr 2007 - ADSL routers with integrated SIP QoS for other devices

Greetings list,

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.

I've used m0n0wall's QoS in the past with reasonable success, but
it's quite a bulky and complex setup for deploying to remote sites which
I'll never visit (minimum 3 boxes - ADSL modem, m0n0, WiFi AP).

So, does anyone have any recommendations for a wireless ADSL router with
integrated QoS for SIP/RTP? I've looked at some of the Draytek units (e.g.
Vigor 2700V), but I can't find reference as to whether the integrated QoS
applies only to the FXS ports in the router itself, or to all SIP traffic (most
of the users will have separate SIP hardphones). These are all to be used in the
UK, so the device in question needs to support PPPoA.

Any suggestions gratefully appreciated.

Regards,

Chris
-- 
C.M. Bagnall, Director, Minotaur I.T. Limited
For full contact details visit http://www.minotaur.it/chris.html
This email is made from 100% recycled electrons

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!

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

Try the intertex gateways http://www.intertex.se/

Here their page outlining the their QoS settings:
http://www.intertex.se/products/page.asp?iPageID=143

They have models with ADSL models and wireless access point components.

--------------------------------------------------
Salvatore Giudice
Salvatore.Giudice@VoIPSecurityTraining.com

VoIP Security Training, LLC
http://VoIPSecurityTraining.com

848 N. Rainbow Blvd. #1676
Las Vegas, NV 89107
Phone: (617) 959-7625
Fax: (214) 279-2906


-----Original Message-----
From: asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Chris Bagnall
Sent: Saturday, April 28, 2007 11:22 AM
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: [asterisk-users] ADSL routers with integrated SIP QoS for other devices

Greetings list,

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.

I've used m0n0wall's QoS in the past with reasonable success, but
it's quite a bulky and complex setup for deploying to remote sites which
I'll never visit (minimum 3 boxes - ADSL modem, m0n0, WiFi AP).

So, does anyone have any recommendations for a wireless ADSL router with
integrated QoS for SIP/RTP? I've looked at some of the Draytek units (e.g.
Vigor 2700V), but I can't find reference as to whether the integrated QoS
applies only to the FXS ports in the router itself, or to all SIP traffic (most
of the users will have separate SIP hardphones). These are all to be used in the
UK, so the device in question needs to support PPPoA.

Any suggestions gratefully appreciated.

Regards,

Chris
-- 
C.M. Bagnall, Director, Minotaur I.T. Limited
For full contact details visit http://www.minotaur.it/chris.html
This email is made from 100% recycled electrons


_______________________________________________
--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