From mboxrd@z Thu Jan 1 00:00:00 1970 From: Damion de Soto Date: Mon, 03 Nov 2003 00:23:49 +0000 Subject: Re: [LARTC] QoS / VoIP Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lartc@vger.kernel.org Hi Brian, > Here is my situation. I have four remote offices, one connected by a > wireless link, one connected by a regular T1 and two connected by frame. > We have just switched PBX's and are now using VoIP phones instead of > landlines. My problem is (obviously) with VoIP, the voice is getting > choppy whenever there is high data transfers. > > My question is, for the office with a T1, should I put a QoS box on both > ends? (One here at HQ, and one there?) Same with the frame? And > correct me if I'm wrong, but I will need one at both ends for the > wireless link. It really depends where your bandwidth is getting used up. QoS and traffic shaping works (best and easiest) on outbound traffic only, so if you can determine which links are being flooded with (non VoIP) data transfers, and then put a QoS box on the end sending the data, it may solve all the problems. If all the links are being flooded, then chances are you will need shaping at each end - 5 QoS boxes. Keep in mind, if you are using linux machines as any existing gateway/routers, then you can probabaly just install the tc tools and do the shaping on them, in their existing place in the network. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Damion de Soto - Software Engineer email: damion@snapgear.com SnapGear --- ph: +61 7 3435 2809 | Custom Embedded Solutions fax: +61 7 3891 3630 | and Security Appliances web: http://www.snapgear.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --- Free Embedded Linux Distro at http://www.snapgear.org --- _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/