I've also decided to spend some time troubleshooting my bandwidth issue. After running some iperf test, I found out the issue is my Linksys DD-WRT router. Furthermore, I discovered the issue is with QoS on the DD-WRT. The thing is, it seemed to work great for prioritizing all of my voice traffic. Unfortunately, all my other traffic suffered - to the rate of T-1 speeds. After some reading, there are some incompatibility issues between QoS and PPTP. Bummer. There is also issues and bug with the code I am running. The QoS was enabled for WAN only, but alas, it was working on all destinations which is why my inter-vlan traffic suffered. Sigh.
When all else fails - go with what you know right? So, I am thinking of getting a cisco 2621xm (unless someone has a better recommendation). Hopefully with that, I won't have any issues. I also want to get a 3550 as my switch. Currently, I am using the DD-WRT router trunked to an old 3500xl. It works, but not the way I want it to. Hopefully I can get these after the new year and put everything in my new server rack that is coming in. Now I am off to do some wiresharking to see if my current voice traffic is marked in any way.
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