Re: scp UNBELIEVABLY slow -- PLOT THICKENS



Ignoramus16148 schrieb:
On 2008-03-25, NoStop <nospam@xxxxxxxxxx> wrote:
Bad security on YOUR local LAN?


Even if someone was downloading torrents through my wifi, it would
only account for a few megabits. So while your idea is interesting, I
do not think that it could account for it.

However, plot thickened.

My laptop was connected to the basement server through three gigabit
switches A, B, C. That's where I had this terrible performance.

I moved it to the basement where it is connected through switches C
and D (D is a 100 megabit switch).

Here, the performance improved dramatically to 3.9 megaBYTES per
second.

Go figure.

Why SCP was 36 times slower than HTTP going through A, B, C but not C
and D, is a mystery.

i have seen effects like this due to the mtu und mtu-path discovery.
Does your net allow icmp?

Do you compare HHTP throughput by large files like your files you want transfer, or just by loading some webpages?

Have you tried to use another cipher, like blowfish instead 3DES?

Wolfgang

.



Relevant Pages

  • Re: scp UNBELIEVABLY slow -- PLOT THICKENS
    ... only account for a few megabits. ... do not think that it could account for it. ... switches A, B, C. That's where I had this terrible performance. ... I moved it to the basement where it is connected through switches C ...
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