Testing router code before deployment

[Tom Holbrook <tomhol () corp earthlink net>]

Just curious what testing protocol people use with router code (IOS or 
JunOS for example) when considering deployment of a new version. Obviously 
the deployment would be made incrementally, but I wonder if you do anything 
more than running it in a lab router for a couple of weeks before the 
initial deployment.

Thanks
-Tom

__________________
Tom Holbrook
Sr. Network Engineer
Earthlink - Atlanta

'Safe?' said Mr. Beaver...'Who said anything about safe? 'Course he isn't 
safe. but he's good. He's the King, I tell you.'
--The Lion, the Witch and the Wardrobe