QOS & Static IP lines

Posts: 4 · New Forum Member Joined: Mar 14, 2007 Posts: 4

I'm having trouble with choppy audio, echoes, complete failures and slow internet connections.
I have Roadrunner (10MB connection/1M upload)
An RCA DCM315 modem
A D-Link DIR-655 Router
4 separate Linksys RTP300 boxes and a switch for internet lines.

I just added the switch today because I thought the 3 computer connections plugging into the back of one of the boxes might be slowing the system down and creating poor quality.

Here are my stats:
Download speed: 7618744 bps
Upload speed: 985496 bps
Quality of service: 81 %
Download test type: socket
Upload test type: socket
Maximum download pause: 54 ms
Average download pause: 4 ms
Minimum round trip time to server: 94 ms
Average round trip time to server: 100 ms
Jitter: you --> server: 5.5 ms
Jitter: server --> you: 2.9 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Number of supported Voip lines: 16
Estimated MOS score: 4.0

My QOS fluctuates and I don't know how to set the QOS settings to configure my router for Voip. I'm also having trouble setting static IPs for the boxes. I've held the assigned DHCP IPs in the router, but I don't know if that's the same as changing the IP within the RTP300 boxes.

I know this is long, but I've been having serious problems regarding this for a long time now. I'm lost!

Posts: 2257 · Posted: Wed Mar 14, 2007 8:01 pm Post subject:

First, a brief tutorial on QoS and what it can, and can not, do for you...

http://vonage.nmhoy.net/qos.html

That article may also give you some tips on how to configure the QoS on your DLink.

Next...

There may be some confusion in terminology at work here. To clarify -
- QoS as seen by the bandwidth test you posted measures the relative difference between the fastest and slowest tests it does during the testing process. That is a measure of the consistency of your Internet connection.
- QoS as configured in your router is a way of prioritizing packets through the router, not a measure of the quality/consistency of the connection itself.

So, there's little you can do about poor consistency in your Internet connection itself by configuring things in your router. Fortunately, a tested Quality of Service of 81% is a relatively consistent connection, so you should do OK.

Anyway... so as I understand it, your RTP300 boxes are now being used solely as Vonage devices, and have no routing duties, correct? Your computer(s) are all on the switch, and not routed through the Vonage RTP300s in any way?

If that is the case, then your D-Link merely needs to be set up so that all three RTP300 Vonage boxes have their MAC addresses set as HIGHEST priority. From there, you can then configure any other services with whatever relative priorities you wish.

As to Static-assigned DHCP versus Static IP, there is no practical difference. If your router can assign IP addresses based on MAC address, just go ahead and do that. It'll work fine.

Posts: 4 · New Forum Member Joined: Mar 14, 2007 Posts: 4

You are correct on both of your questions. I'm also getting 40-55% QOS on my computer connections. Is this something I should take up with Time Warner/Roadrunner if I still have issues?