Re: Whats so difficult about ISSU

[Zaid Ali <zaid () zaidali com>]

Cisco Nexus platform does it pretty well so they have achieved it. 

Zaid
 
On Nov 8, 2012, at 3:22 PM, Kasper Adel wrote:

> 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