[c-nsp] "Incremental" config save w/ "archive config..."

[Jared Mauch]

On Nov 23, 2010, at 2:27 PM, Phil Mayers wrote:

> All,
> 
> When the 12.2(33) train came out for 6500 (SXI) I got quite excited by the possibilities of building a "quicksave" system[1] on top of:
> 
> archive log config persistent save
> 
> ...and the associated stuff in IOS. I didn't have time to look into it, and before I do I thought I'd ask here - is anyone using the "archive" stuff to do this? It seems like it would be particularly valuable on big, dense platforms with slow CPUs and very slow "wr mem" times!
> 
> The testing I did showed that it was doing an internal NVGEN a bit more often than I thought it ought to...

The next-gen sup can't come out soon enough IMHO, as you know the s720 is quite long in the tooth.  the same goes for all the IOS infrastructure behind it.  You should make sure you talk to the right people in NSSTG about the fact that you actually care about how fast things like NVGEN happen with your config.  I think a reasonable benchmark is sub 2 seconds.  Anything above that is too long.

Also, are you intending to use the config replace/rollback capability that comes in conjunction with the archive commandset?

We've noticed a number of defects there that have not been easily addressed.

- Jared