[Soekris] Max MTU size

[Arnaud Feix]

der Mouse a écrit :
>> The Via 6105M Chips on the 5501 support 802.1q VLAN tagging, which
>> would be an Ethernet frame size of 1522,
>>     
>
> One of us has something wrong here.  I'm perfectly willing to believe
> it's me, but I would be interested in knowing what I've got wrong.
>
> As I understand it, the maximum standard Ethernet frame is 1516 bytes:
> 6 bytes of destination MAC, 6 of source MAC, 2 of frame type, 1500 of
> payload, and 2 of FCS.  802.1q increases this by 4 (2 for the
> "vlan-tagged" frame type and 2 for the vlan number, basically),
> bringing it to 1520, not 1522.  Where's the mistake?
>
> /~\ The ASCII				der Mouse
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>   
Go to http://www.packetmischief.ca/network/protocol_overhead.html for 
more information about Ethernet.

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