Messages in this thread |  | | | Date | Wed, 18 May 2011 22:20:25 +0200 | | From | Hagen Paul Pfeifer <> | | Subject | Re: [PATCH] tcp: Expose the initial RTO via a new sysctl. |
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* David Miller | 2011-05-18 15:52:00 [-0400]: >I've already changed the initial TCP congestion window in Linux to 10 >without some stupid draft being fully accepted. > >I'll just as easily accept right now a patch right now which lowers >the initial RTO to 1 second and adds the 3 second RTO fallback.
I like the idea to make the initial RTO a knob because we in a isolated MANET environment have a RTT larger then 1 second. Especially the link layer setup procedure over several hops demand some time-costly setup time. After that the RTT is <1 second. The current algorithm works great for us. So this RTO change will be counterproductive: it will always trigger a needless timeout.
The main problem for us is that Google at all pushing their view of Internet with a lot of pressure. The same is true for the IETF IW adjustments, which is unsuitable for networks which operates at a bandwidth characteristic some years ago. The _former_ conservative principle "TCP over everything" is forgotten.
Hagen
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