Re: 2.0.6 Networking strangeness

Matthias Urlichs (smurf@smurf.noris.de)
Tue, 16 Jul 1996 07:59:39 +0100


In linux.dev.kernel, article <Pine.LNX.3.91.960715150713.15754O-100000@=
reflections.mindspring.com>,
Todd Graham Lewis <tlewis@mindspring.com> writes:
> On Sun, 14 Jul 1996, Matthias Urlichs wrote:
>=20
> > > ping hur -> miriam 0.6-1.1msec
> >=20
> > Cannot happen.
> >=20
> > A ping packet is 56 bytes long or so, usually. For 40 bytes to be
> > transmitted in 500 usec, you need almost 1 Mbit/sec. Somehow, I dou=
bt that
> > your PPP link is _that_ fast.
>=20
> Eh? He said msec, not usec. He's more in the <1kbps range.

You didn't pay attention. If _one_bit_ takes one msec, you're in the 1k=
bps
range. However, we're talking about _56_bytes_ here, which pass the lin=
k
_twice_ (that's where I got the 500 usec from: 1 msec divided by two).

--=20
There's a fine line between courage and foolishness. Too bad its not a
fence.
--=20
Matthias Urlichs \ noris network GmbH / Xlink-POP N=FCrnberg=
=20
Schleiermacherstra=DFe 12 \ Linux+Internet / EMail: urlichs@nor=
is.de
90491 N=FCrnberg (Germany) \ Consulting+Programming+Networking+etc=
'ing
PGP: 1024/4F578875 1B 89 E2 1C 43 EA 80 44 15 D2 29 CF C6 C7 E0 D=
E
Click <A HREF=3D"http://info.noris.de/~smurf/finger">here</A>. =
42