True, but not all the L2 protocols support fragmentation.
Ethernet 802.3 ARPA, LLC etc.. don't support fragmentation.
Sreeram Vankadari
JORDI PALET MARTINEZ wrote:
> In the other way, if this happens, the fragmentation will be carried out at the link
>layer, if I'm not wrong ?
>
> Thanks and best regards,
>
> Jordi Palet
> Consulintel
>
> http://www.consulintel.es
> Tel: 91 151 81 99 - Fax: 91 151 81 98
>
> ----- Original Message -----
> From: <JINMEI Tatuya / $B?@L@C#:H (B <[EMAIL PROTECTED]>)>
> To: "Sridhar Gurivireddy" <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Tuesday, June 05, 2001 3:35 AM
> Subject: Re: fragmentation in IPv6
>
> > >>>>> On Mon, 04 Jun 2001 17:20:13 -0500,
> > >>>>> Sridhar Gurivireddy <[EMAIL PROTECTED]> said:
> >
> > > even if fragmentation done only at the source,
> > > it may have this problem because,.....
> > > say IP header(with extensions) is of size 4k!!!!!
> > > it's framented for the first time.....
> > > you get three pieces..
> > > yu add header to each piece...
> > > each piece is now again >4k...
> > > so, fragmentation again....
> > > Does this problem occur..
> >
> > Yes, when the unfragmentable part of a packet is larger than the path
> > MTU, fragmentation fails and you cannot send the packet. However,
> > (at least through my operation experiences) we've never cared about
> > the problem, since we've not seen any practical usage of such a pakcet
> > with a long unfragmentale part.
> >
> > JINMEI, Tatuya
> > Communication Platform Lab.
> > Corporate R&D Center, Toshiba Corp.
> > [EMAIL PROTECTED]
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> >
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