So, I had a question regarding hardware replacement. I recently replaced
several Cisco 2811 routers with Cisco ISR 4331's, and kept the same host
name. After the swap, I noticed I wasn't getting any graphs for data flow
on the serial interfaces. I attempted running discovery on them again, and
waited for a few polling cycles, but still go no data. In the end, I ended
up deleting the devices completely out of Observium, including the RRD
files, and re-adding. After this was done, everything showed up correctly.
So, as I will be doing more of these soon, is there a specific process I
should follow for these? Maybe rename the old device to a different
hostname, then add the new device? The historical data wasn't critical, so
I'm not too bothered losing it, but I would like to avoid it if possible.
Thanks,
Derek
