Subject: [ledbat] open issues, delay target MUST/SHOULD

From: "Rolf Winter" <[email-masked]>
Date: Tue, 8 Jun 2010 16:05:46 +0200

Hi,

Here's the second open issue:

2. MUST/SHOULD/SHALL on the delay target
Should the delay target be MUST or SHOULD (or something else). There was a discussion on whether the delay target should be required to be 25ms. Stas argued it is needed for interoperability. But some people argued it would be good if people were allowed to experiment with different values. I personally think this should be fixed. My argument would be that if people were allowed to fiddle with the 25 ms they will in order to have their app to perform better. Imagine two p2p applications running behind a common bottleneck (in your home network e.g.). The one choosing a slightly higher target will win over the other. We did experiments with this and found a few milliseconds to be sufficient. This potentially is an open invitation to an arms race amongst app developers I think. I'd like to hear more arguments for either one or the other.

Best,

	Rolf

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