Peter J Welcher

Networking Consultant


Dr. Pete Welcher, CCIE #1773 (still active), has been doing networking since 1993. He assisted in developing the original Cisco IOS CLI, taught a lot of the Cisco courses from 1994-2001 as CCSI, and also developed or co-developed several Cisco courses over the years. He taught occasional Nexus classes 2010-2012.

He was a co-founder of and still works for NetCraftsmen, a highly skilled Cisco Gold Partner with about 55 employees in the DC / Baltimore area. Pete now does primarily consulting, and has worked with a large number of large and small organizations, trying to deliver impressive value to every customer.

He has been blogging about networking since around 1996. The blogs frequently reflect interesting situations encountered while consulting. Current interests are Data Center, Design, Route/Switch, Cloud, IOT.

Pete likes coding/scripting, but doesn't get to use it often.


October 5, 2017


Digital Transformation and “Cloud Ready”

8 min read

We hear a lot about digital transformation, hybrid cloud, and “lift and shift (to cloud)” from various marketing sources. Let’s examine that.

June 12, 2017


Cisco’s IWAN (Intelligent WAN) for Your SD-WAN

5 min read

For organizations with a Cisco WAN in place already, the risk and cost to try out IWAN may be low. Learn more about getting started with IWAN.

November 5, 2015


Recognizing a Good Network Design

5 min read

How do you recognize a good network or datacenter design? What contributes to a good design? How do you learn to do network design well, and then continue improving? Spotting design problems is key to the network assessments my employer, NetCraftsmen, does. There are other important aspects of assessments: network configuration (execution of the design […]

April 17, 2015


Is Your Network Cloud Ready?

8 min read

Is your network cloud ready? We at NetCraftsmen, a Cisco Gold Partner, are hearing this question more often. Let’s discuss how to tell if your network is cloud ready, and how to get there if you’re not. Even if your organization already has a public cloud presence, I hope you’ll find some ideas in the […]

May 14, 2014


Summary – Network Design for Automation

1 min read

There has been a lot of recent online discussion about automation of the datacenter network, how we all may (or may not) need to learn programming, the value of a...

May 13, 2014


Network Design for Automation

6 min read

There has been a lot of recent online discussion about automation of the datacenter network, how we all may (or may not)...