I think it is important to remember that this draft is about *IP* layer
fragmentation. Tunnels can employ tunnel-layer fragmentation at a
layer above IP:
Or, if the draft intends to also cover tunnel-layer fragmentation it
should probably be updated to say so.
Thanks - Fred
> -----Original Message-----
> From: Int-area [mailto:int-area-boun...@ietf.org] On Behalf Of Ole Troan
> Sent: Tuesday, March 06, 2018 11:17 AM
> To: Joe Touch <to...@strayalpha.com>
> Cc: firstname.lastname@example.org; Ron Bonica <rbon...@juniper.net>
> Subject: Re: [Int-area] draft-bonica-intarea-frag-fragile-01
> > Agreed but note that draft tunnels will update that RFC in some important
> > ways.
> With other concerns than those raised in e.g. 4459 and 7597?
> Unfortunately there are cases where there are no other choice than to do
> fragmentation/reassembly on tunnel endpoints, but still
> the recommendation holds.
> It is so problematic, that it is strongly recommended to engineer the network
> to avoid that happening.
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