Date: Tue, 15 Sep 1998 12:15:52 -0700 (PDT) From: "Jan B. Koum " <jkb@best.com> To: Bengt Gorden <bengan@sunet.se> Cc: beatteam@austasia.net, FreeBSD -Questions <freebsd-questions@FreeBSD.ORG> Subject: Re: MTU Size & Connection reset by.. & Lost Input channel Message-ID: <Pine.BSF.4.02A.9809151213500.17708-100000@shell6.ba.best.com> In-Reply-To: <19980915203908.A19511@sunet.se>
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And to beat around dead horse:
% ifconfig -a
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
^^^^^^^^
inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255
ether 00:60:08:15:bc:65
media: autoselect (10baseT/UTP <half-duplex>)
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
^^^^^^^^^
ifconfig command will let you know MTU for your interfaces.
-- Yan
I don't have the password .... + Jan Koum
But the path is chainlinked .. | Spelled Jan, pronounced Yan. There.
So if you've got the time .... | Web: http://www.best.com/~jkb
Set the tone to sync ......... + OS: http://www.FreeBSD.org
On Tue, 15 Sep 1998, Bengt Gorden wrote:
>On Sat, Sep 12, 1998 at 02:21:36PM +1000, Brett Gray wrote:
>>
>> b) I read something on the net about MTU size. What is MTU (I cant find
>> any
>> explaination of the term.. just references to it) Is the above problem
>> likely to be something to do with MTU size and where can I adjust this
>> setting in FreeBSD
>
>MTU = Maximum Transmission Unit
>
>It's the largest link layer datagram that can be used for a particular
>network. If you try to send a IP datagram that is larger than the MTU
>it's going to be fragmented. Different types of networks have
>different MTU:s. Here are a few of them:
>
>FDDI 4352
>Ethernet 1500
>IEEE 802.3/802.2 1492
>X.25 576 (Ah, there we have an ugly one)
>
>--
>
>/Bengan
>
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