[157794] in North American Network Operators' Group

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Whats so difficult about ISSU

daemon@ATHENA.MIT.EDU (Kasper Adel)
Thu Nov 8 18:23:18 2012

Date: Fri, 9 Nov 2012 01:22:58 +0200
From: Kasper Adel <karim.adel@gmail.com>
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

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

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