[nsp] 12.3T - a niiiiice feature :)

Gert Doering gert at greenie.muc.de
Wed Aug 6 17:26:56 EDT 2003


On Wed, Aug 06, 2003 at 10:15:01AM -0400, Jared Mauch wrote:
> > Why?  Reboots are for hardware changes...
> 	Trying to avoid going into rants on why to reload, etc..
> 	I see this as something that brings Cisco significant benifit.

Well, actually I agree with you :-) - if the box has a memory leak, or
some other reason to force a reload, it's quite good if it comes up 
much more quickly.

I don't see any reason to "carelessly reboot" machines, though - like
what I've seen at customer sites ("this box is rebooted once per day,
whether necessary or not, it *might* cause problems if we don't reboot").

> 	there are also other reasons besides memory leak, etc.. to reload
> routers.
> 	there are some of us that manage very large router configurations.
> something like this would possibly mean if we are making large policy
> changes, we would be able to copy from our tftp/rcp server (where the
> configuration is generated out of sql, m4, etc.. and is actually the
> 'master' config, not the nvram ... works well on juniper w/ 
> load override fyi..) reboot and start going rather quickly.

I'm not sure whether I think this makes sense.

In the standard case (access lists, AS path filters, prefix lists) the
lists can be uploaded to the running router just fine, without requiring
a replacement of the complete startup-configuration and subsequent reboot.

So even if reboots can be made much faster by this, I still want to avoid
reboots wherever possible - and it that means "invest more brains into
operational procedures", so bet it.

(I am aware that your network is much bigger than mine, but as I already
do most of these cases in an automated way, I think it can scale up pretty
well.  Exceptional cases excempt, of course)

> 	This helps us all as people honestly view the internet as
> something that needs to be only slightly more reliable than their
> electric service these days.

Sure, which is why I try to avoid doing reboots at all, no matter how 
quick they are...


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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de

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