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 […]
Articles by John Herbert
DCNM ISSU: Disaster or Triumph? Let’s Find Out.
If you’ve recovered from the shock of hearing me say something positive about Cisco’s Data Center Network Manager (DCNM) product, then you’ll want to hold on tightly to your underbritches as I tell you that […]
TIP: How To Do MD5 and SHA1 File Checksum Validation
It’s always a good idea to calculate an MD5 or SHA1 file checksum to validate file integrity after download or transfer, especially when dealing with firmware binaries. While most modern systems are smart enough to […]
Cisco Data Center Network Manager (DCNM) – Initial Feedback
Recently I had a chance to try using Cisco’s Data Center Network Manager (DCNM) software in anger. I must confess that sometimes anger was the right word, but at other times it definitely made me […]
When Installs Go Bad…
It’s Thursday, so I think I’ll just leave this here: … Info: 0/1/CPU0 (LC) (SDR: Owner) Proceed with this install operation (y/n)? [y] RP/0/RSP0/CPU0:Dec 16 08:29:48.835 : instdir[255]: %INSTALL-INSTMGR-4-INSTALL_OPERATION_WARNING : A warning occurred during install […]
Automation For All The Things! What Happens Next?
Over the last five years, there has been increasing noise about whether the growing automation and orchestration of networks (and infrastructure in general) will lead to our jobs being eliminated. Concerns about mass layoffs are understandable given what […]