The Top 25 Network Problems and Their Business Impact

Terry Slattery
Principal Architect

We’ve created a neat poster outlining the most common network problems that we encounter in today’s networks.  Now, a list of 25 network problems wouldn’t be very interesting all by themselves, so we’ve added a description of the typical business impact of each problem (see screenshots below).  People who look at it tend to look through the problems and find the one that bit them most recently (“Hey! We had that problem last month!“)

With both the problem and business impact, the poster becomes a valuable tool for communicating between network people and managers or applications people.  And, of course, NetMRI identifies these problems; therefore, it provides visibility into things that impact business operations, and ultimately, the ability for the business to make money.

We had the poster on display at Interop and it was so popular that we gave out all the copies we had available.  At Networkers this year (2008) Chesapeake NetCraftsmen, a partner of ours, will have it with their name/logo, so look for them at booth 249.

Eric Krapf, co-organizer of VoiceCon and chief blogger at the web site, wrote in his blog about the problems described in the poster after discussing it with me.  Brad Reese, who does a blog for The Cisco Subnet, did a blog on it (, along with a list of all the problems.  He asks an important question: “What do YOU think is a top network problem?

Go to to get one mailed to you.




Re-posted with Permission 

NetCraftsmen would like to acknowledge Infoblox for their permission to re-post this article which originally appeared in the Applied Infrastructure blog under


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Nick Kelly

Cybersecurity Engineer, Cisco

Nick has over 20 years of experience in Security Operations and Security Sales. He is an avid student of cybersecurity and regularly engages with the Infosec community at events like BSides, RVASec, Derbycon and more. The son of an FBI forensics director, Nick holds a B.S. in Criminal Justice and is one of Cisco’s Fire Jumper Elite members. When he’s not working, he writes cyberpunk and punches aliens on his Playstation.


Virgilio “BONG” dela Cruz Jr.

CCDP, CCNA V, CCNP, Cisco IPS Express Security for AM/EE
Field Solutions Architect, Tech Data

Virgilio “Bong” has sixteen years of professional experience in IT industry from academe, technical and customer support, pre-sales, post sales, project management, training and enablement. He has worked in Cisco Technical Assistance Center (TAC) as a member of the WAN and LAN Switching team. Bong now works for Tech Data as the Field Solutions Architect with a focus on Cisco Security and holds a few Cisco certifications including Fire Jumper Elite.


John Cavanaugh

CCIE #1066, CCDE #20070002, CCAr
Chief Technology Officer, Practice Lead Security Services, NetCraftsmen

John is our CTO and the practice lead for a talented team of consultants focused on designing and delivering scalable and secure infrastructure solutions to customers across multiple industry verticals and technologies. Previously he has held several positions including Executive Director/Chief Architect for Global Network Services at JPMorgan Chase. In that capacity, he led a team managing network architecture and services.  Prior to his role at JPMorgan Chase, John was a Distinguished Engineer at Cisco working across a number of verticals including Higher Education, Finance, Retail, Government, and Health Care.

He is an expert in working with groups to identify business needs, and align technology strategies to enable business strategies, building in agility and scalability to allow for future changes. John is experienced in the architecture and design of highly available, secure, network infrastructure and data centers, and has worked on projects worldwide. He has worked in both the business and regulatory environments for the design and deployment of complex IT infrastructures.