nanog mailing list archives

Re: Whats so difficult about ISSU


From: Saku Ytti <saku () ytti fi>
Date: Sat, 10 Nov 2012 10:43:38 +0200

On (2012-11-09 20:24 -0500), Pete Lumbis wrote:

So each IOSd process 'show proc cpu' are separate threads to linux?

Yep. The "show platform software..." commands are used to look at things in

To be honest I'm very sceptical about this. I fully accept that IOSd is
multithreaded. But I'm having difficulties accepting that each IOSd process
would be own thread scheduled by Linux and that native/IOS
run-to-completion scheduler isn't used at all. 

But we're out of scope for ISSU thread in nanog-ml, I think. I do
appreciate always when vendors pitch in in public forums, so thank you for
that Pete.

-- 
  ++ytti


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