Re: [TERNLI] Notes from tonight's ad hoc
Michael Welzl <Michael.Welzl@uibk.ac.at> Fri, 28 July 2006 12:06 UTC
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Date: Fri, 28 Jul 2006 14:06:04 +0200
From: Michael Welzl <Michael.Welzl@uibk.ac.at>
To: mallman@icir.org
Subject: Re: [TERNLI] Notes from tonight's ad hoc
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> > 802.16 also has adaptive modulation and coding that alter the rate of > > the channel and may vary as the distance between a base station and > > subscriber station changes. Adaptive coding is common for satellite > > links as well. It seems like this type of event could be useful to > > signal if it resulted in more than a doubling or halving of capacity, as > > a simple filter. > > One way to look at this is that the "type of event" is not at all > important to communicate. The real thing to get across is the available > capacity has changed somewhat dramatically. Does it really matter if > this is because 802.11 dropped us from 11mbps to 2mbps or some BoD > system just allocated us a ton of capacity or we moved much closer to > some access point / basestation and now have a much better signal? > > Does this make sense? A lot! I was about to say something similar in case the discussion would have moved further in this direction (signaling irrelevant details about link layer occurrences to the transport layer). I think that any comunication from lower layers up to the transport layer should be converted to a transport-layer-related format (where we're interested in things such as the RTT, capacity (even though this is usually not available at the transport layer - but it's an upper limit, so why not communicate it?), all kinds of traffic related information (e.g. imminent sudden growth), ...). I don't want to turn this into an acedemic exercise - all I'm suggesting is to think in such terms when looking at link layer events that should somehow be communicated to the endpoints. Cheers, Michael
- [TERNLI] Notes from tonight's ad hoc Spencer Dawkins
- Re: [TERNLI] Notes from tonight's ad hoc Wesley Eddy
- Re: [TERNLI] Notes from tonight's ad hoc Spencer Dawkins
- Re: [TERNLI] Notes from tonight's ad hoc Mark Allman
- RE: [TERNLI] Notes from tonight's ad hoc Kevin Fall
- Re: [TERNLI] Notes from tonight's ad hoc Wesley Eddy
- Re: [TERNLI] Notes from tonight's ad hoc Mark Allman
- Re: [TERNLI] Notes from tonight's ad hoc Michael Welzl
- RE: [TERNLI] Notes from tonight's ad hoc Kevin Fall
- RE: [TERNLI] Notes from tonight's ad hoc Michael Welzl
- Re: [TERNLI] Notes from tonight's ad hoc Mark Allman
- Re: [TERNLI] Notes from tonight's ad hoc Wesley Eddy
- Re: [TERNLI] Notes from tonight's ad hoc Michael Welzl
- Re: [TERNLI] Notes from tonight's ad hoc Joe Touch
- Re: [TERNLI] Notes from tonight's ad hoc Mark Allman
- Re: [TERNLI] Notes from tonight's ad hoc Joe Touch
- Re: [TERNLI] Notes from tonight's ad hoc Lars Eggert
- Re: [TERNLI] Notes from tonight's ad hoc Gorry Fairhurst
- Re: [TERNLI] Notes from tonight's ad hoc Spencer Dawkins
- Re: [TERNLI] Notes from tonight's ad hoc Aaron Falk
- Re: [TERNLI] Notes from tonight's ad hoc Aaron Falk
- Re: [TERNLI] Notes from tonight's ad hoc Joe Touch
- Re: [TERNLI] Notes from tonight's ad hoc Joe Touch
- Re: [TERNLI] Notes from tonight's ad hoc Gorry Fairhurst
- Re: [TERNLI] Notes from tonight's ad hoc Aaron Falk
- Re: [TERNLI] Notes from tonight's ad hoc Bob Briscoe
- Re: [TERNLI] Notes from tonight's ad hoc Lars Eggert
- Re: [TERNLI] Notes from tonight's ad hoc Bob Briscoe
- Re: [TERNLI] Notes from tonight's ad hoc Joe Touch