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Vonage It does, to a very small extent, but that's not truly prioritizing the packets.
If
It does, to a very small extent, but that's not truly prioritizing the packets.
If the FTP packets are flooding in, then the acknowledgments outbound will also flood out, and the FTP won't be slowed down at all.
If the FTP client has a way to be slowed down, then of course as soon as the stream of data slows down, the acknowledgments will also slow down, and the stream will stay slower. So if you could throttle the FTP bandwidth, then it should be, to some extent, self-correcting.
However, since the LAN is slower than the WAN, prioritizing the packets ain't gonna cut the mustard, since all local traffic happens at 100mbps (or if your LAN card is really old, 10, or whatever your wireless is). So the instant a packet comes out of the bottleneck, it's going to hit your FTP client, no matter what.
If you have a router that's sophisticated enough to allocate bandwidth, rather than merely prioritizing it, you MIGHT be able to help out. Just tell the router that that FTP client only gets, say, 20kbps, and the FTP server will only flood briefly until the acknowledgments start coming in slowly, then the stream will self-correct, to an extent.
But, since QoS is prioritizing packets that are coming from a thin pipe into a thick pipe, well, it's sorta like having a tollbooth on an onramp with all lanes getting equal priority, then putting a second tollbooth with 500 extra lanes, and reserving 1 or 2 for emergency vehicles. At that point, everyone's already been through the slow bit, including the emergency vehicles, so there isn't much conflict anyway. So the FTP packets will reach the client, QoS or no, as fast as they can clog the bandwidth, and the FTP client and Vonage line are fighting on equal terms.
Since the Vonage line ignores dropped packets (UDP) and the FTP client asks for a resend of them (TCP), the bottleneck will actually force the FTP client to ask the server to resend any lost packets, exacerbating the bottleneck. This means that even if you throttle the FTP client to an extent, the resend requests will still go out if the packets exceed keepalive, and you waste tons of inbound bandwidth.
Read The Full Thread: line noise when downloading - any ideas?
• I've used Vonage for about a month. I'm set up with a Motorola VT1005 connected
• Do you have the same download problem if you disconnect the Vonage adapter? How
• Steve,
thanks for the troubleshooting questions..
If I dc'd the
• Tom,
Thanks for the extra information. I had misinterpreted your problem
• Yes, the pc is connected to the linksys router in port three.
The Motorola adapter
• Odder things have been known to happen, but I don't see an easy way to pin it down.
• Real download QoS does not exist, at least not on a normal ISP running a consumer
• Do you thing the Motorola adapter may be bad?
Steve,
I have tried plugging
• So does this mean that he's just out of luck? His speeds are good, and I don't see
NateHoy posted "It does, to a very small extent, but that's not truly prioritizing the packets.
If" on 01/01/2006 |
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