[kwlug-disc] [OT] Diagnosing voip and Tomato
ldpaniak at fourpisolutions.com
Thu Feb 24 21:03:05 EST 2011
For bandwidth management on routers that seems to work, try the Gargoyle
It is OpenWRT-based and runs on the Linksys-class hardware. You can
throttle users by usage or IP. It tires to do QOS as well, but I have
not tried it myself.
On Thu, 2011-02-24 at 20:31 -0500, John Johnson wrote:
> I will venture an opinion about the nature of the traffic. Most (if not
> all) residential services, and perhaps SOHO services, whether cable or
> DSL are asymmetrical meaning the download throughput is higher, much
> higher, than that upload/upstream traffic. VoIP, on the, other hand
> requires a symmetrical service for its slice of the throughput pie. The
> downstream YouTube video traffic is competing in the downstream 'pipe'
> for its slice of the pie with the VoIP traffic. Or vice versa.
> A month or two ago, I think John Van O, or perhaps someone else
> described how a greedy bandwidth consumer, like maybe YouTube, will grab
> the whole through pie leaving very little bandwidth for other consumers.
> I don't know what to suggest except to ask who is experiencing the
> 'choppy' voice traffic. It seems from the YouTube 'solution' that the
> problem in the downstream side.
> IMHO The problem is in the 'pipe' and not your equipment.
> I do not know if there are different grades of service available to SOHO
> and residential users.
> On 2011-02-24 19:52, Insurance Squared Inc. wrote:
> > Sorry for the mildly off topic but there's so many voip experts here.
> > I'm trying to increase my call quality. Whenever I'm on a business
> > call and it gets choppy, my current solution is to holler 'GET OFF
> > YOUTUBE' to the kids. It's a cheap and reliable solution but I'm
> > looking for a less intrusive alternative. I've just changed voip
> > server hardware, but that's not resolved it, still gets choppy if
> > downloading something.
> > What's the next step? I've got a QOS router but the internet says it
> > only fixes upstream traffic, not downstream. Seems odd to me, but
> > sure. If I went with the old standby linksys and installed tomato on
> > it, would that likely be the reasonable next step in fixing the choppy
> > voip?
> > The only other thing I've got in the mix is a dell switch that
> > connects all my various ethernet ports, but it's all 10/100 and
> > commercial quality, so I can't see how that would be the problem.
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