Best way to upgrade/replace a node and retain historical data?

Question

When I have SiteX and I want to upgrade the router from a Cisco 2600 to a Cisco 2800, I want to retain all of the historical WAN throughput for that site. What is the recommended way for doing that? If the old router had Serial0/0 and the new router has Serial0/0/0, it creates a new interface under the new router in NPM. Is there a way to take the data from Serial0/0 and combine it into Serial0/0/0?

thanks,

Geoff

Capt._Obvious · Accepted Answer

Step #1 Back up your DB

Step #2 Back up your DB

Step #3 in the database you could disable the identity bit momentarily on the interface table change the new interfaceid to the old interfaceid and the old interface to something like 5555 (or any interface id not currently in use) and then reenable the identity bit.

I think that works...