Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 18 Jan 2007 18:37:20 +1100 (EST)
From:      Bruce Evans <bde@zeta.org.au>
To:        Michael Widerkrantz <mc@hack.org>
Cc:        freebsd-net@freebsd.org
Subject:   Re: Lenovo X60 em
Message-ID:  <20070118183704.A3165@besplex.bde.org>
In-Reply-To: <86lkk1jp3u.fsf@tim.hack.org>
References:  <45ACF404.20700@ide.resurscentrum.se> <2a41acea0701160958m27c3537ctb25e5420e7a46891@mail.gmail.com> <45AD3C4E.1050608@ide.resurscentrum.se> <86lkk1jp3u.fsf@tim.hack.org>

next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 17 Jan 2007, Michael Widerkrantz wrote:

> I can verify that. I tried pinging the laptop from another machine
> (10.0.0.2) in my small home LAN.

> With smaller packets:
>
>  tim# ping -D -s 64 brain.internal
>  PING brain.internal.hack.org (10.0.0.20): 64 data bytes
>  72 bytes from 10.0.0.20: icmp_seq=0 ttl=64 time=0.450 ms
>  72 bytes from 10.0.0.20: icmp_seq=1 ttl=64 time=53.031 ms
>  72 bytes from 10.0.0.20: icmp_seq=2 ttl=64 time=48.112 ms
> ...
> Note what happens after the first packet.
>
> The other way, /from/ the laptop, seems fine, though:
>
>  brain# ping -D -s 64 tim.internal
>  PING tim.internal.hack.org (10.0.0.2): 64 data bytes
>  72 bytes from 10.0.0.2: icmp_seq=0 ttl=64 time=0.762 ms
>  72 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.565 ms

I've been working on reducing network latency, and now only
consider latency 10 times smaller than 0.565 mS to be fine
for a home LAN :-).

Bruce



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070118183704.A3165>