[6bone] MTU (Min : 1280) restriction in IPv6

Wed, 20 Nov 2002 13:48:03 -0300

Hi

   IPv6 routers are not allowed to fragment IPv6 packets. Senders must 
fragment packets, so they need to know the Path MTU for the destination 
address. Path MTU discovery is needed fot that.

   If a node does not want to implement Path MTU Discovery it can assume 
that every Path MTU has 1280 bytes.

Carlos.

navaneetham wrote:

>	what is the reason IPv6 requires that every link in the internet have an
>MTU of 1280 octets or greater?
>
>	what is the benefit of having this restriction!!?
>
>
>Navaneetham
>
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