Whats so difficult about ISSU

[Kasper Adel <karim.adel () gmail com>]

Hello,

We've been hearing about ISSU for so many years and i didnt hear that any
vendor was able to achieve it yet.

What is the technical reason behind that?

If i understand correctly, the way it will be done would be simply to have
extra ASICs/HW to be able to build dual circuits accessing the same memory,
and gracefully switch from one to another. Is that right?

Thanks,
Kim