No-Hassle Hardware Replacement with DCNM
Continuing my look at Cisco’s Data Center Network Manager (DCNM) software, I had to swap out a faulty spine switch recently, and got a chance to find out whether I could use DCNM to make the RMA process a little less painful than it would normally be.

Using DCNM for RMA
If I had a dream, albeit a rather sad one, it would be to be able to swap out a hardware component in my network quickly and efficiently, and not have to mess around.
DCNM has all the elements to make this feasible. Given a device serial number, I’ve already confirmed that DCNM can automatically deploy the correct firmware version and base configuration when deploying a new fabric, so there’s no reason it couldn’t be used to do the same thing for a replacement switch, but this time deploying the complete, production configuration in one step. Happily I already have the configuration for the spine switch I’m replacing, because DCNM takes frequent backups. I also have the appropriate firmware loaded to DCNM’s software repository because I used it to build the fabric in the first place. So how do I approach the RMA?
Telling DCNM About The New Hardware
Once the replacement switch was received Continue reading

