[c-nsp] GRE fragmentation and ASR9001

[Jeff Bacon]

> On Tue, 11 Aug 2015, Gert Doering wrote:
> 
> > Indeed... "it might be implemented eventually, but today it isn't, so
> > if you turn it on, your packets will be destroyed in creative ways" :-)
> >
> > But I'm relieved that it's not only me who can't find a formal word on this.
> 
> With the kind of router that ASR9k is, you most likely find it under
> support if it works ok, otherwise it's not mentioned at all.
> 
> Re-assembly of fragmented packets is typically something that routers do
> not do. As soon as you need to keep state across packets you need a fairly
> differently engineered device.

OK, I agree - so what sort of device would that be, if one were to go look for one? 

(I can think of a few use cases I might have for it, but I have yet to see a box that can handle it.)

-bacon