Peter Welcher

This is the fourth in a series of blogs, the DNAC Instant Demo tour. Prior blogs in this series: DNAC Tour Part 1: Introduction to Cisco DNA Center DNAC Tour [...]

This is the third in a series of blogs, the DNAC Tour. Prior blogs in this series: DNAC Tour Part 1: Introduction to Cisco DNA Center DNAC Tour Part 2: [...]

This is the second in a series of blogs, the DNAC Instant Demo tour. Prior blogs in this series: DNAC Tour Part 1: Introduction to Cisco DNA Center In this [...]

A previous blog I posted on LinkedIn mentioned virtual demos. It seems like it could be useful for me to provide some structure around the DNAC (DNA Center) instant demo, [...]

A previous blog discussed shortages of networking and especially security staff, along with some parts of the changing landscape. Other recent blogs considered shifts in Security from firewall / positional [...]

I have some observations about network and security staffing and especially security products, including what I think is happening in some or many sites. Having said that, I make no [...]

Some recent QoS discussions got me thinking. I want to share some of my perspectives on QoS in the hope that you find them useful. The starting point here is [...]

All right, who applied the curse “may you live in interesting times”? COVID, climate change, floods, fires, and so on have us thinking about disaster planning, among other things. Nationally, [...]

I’ve recently had the pleasure of being involved in some long-term discussions about replacing the building switches and core network for a medium-sized city’s network. That was at the initial [...]

I’m shocked. There is a reasonably good topic I failed to blog about! It’s not like I didn’t write about it. I’ve expounded on this topic in several design writeups [...]

This is part 2 of a long blog. You should probably start with Part 1 if you haven’t already read it! Given the title, I hasten to state that nothing [...]

Given the title, I hasten to state that nothing crude is meant. If you hate your firewall, let’s not go there. Just trying to get your attention. Now that I [...]