On 3/1/23 10:04, Saku Ytti wrote:
There are two paths that consumers would accept
a) immutable NOS, you give it image, it boots up and converges in <5min
b) mutable NOS, process restarts keep state, if upgrade is hitful,
forwarding stoppage should be measured in low seconds
I think a) is far easier to achieve.
I prefer a), which is why I was never in favour of ISSU, despite all the
marketing that was as "promising" as IPoDWDM...
The fancier NOS management tries to get, the more we realize we got it
right the first time, way back then.
Mark.
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