Defending the Network from Applications

Terry Slattery
Principal Architect

I just finished the third post in a series about application performance and its impact on the network, see Defending the Network from Application Performance Problems (part III)Defending the Network from Application Performance problems (part II), and The Impact of Network Problems on Application Performance.

One of the most valuable and interesting things about Application Performance Management is that it breaks down the barriers between the networking team and the applications/systems team. It is easy to blame the network for application performance problems and let the network team figure it out. But with an easy-to-use tool, the network team and the applications team can work together to determine whether the network is the culprit of whether something else should be examined. Using an APM tool turns the problem into a discussion of the facts presented by the APM tool and away from opinion and emotion. The relationship between the two teams then becomes more cooperative and less stressful.

The result is that performance problems get examined and addressed sooner and the real source of the performance problem is identified, whether it is something in the application or in the network. That’s the real value of APM: quickly and efficiently arriving at solutions to application performance problems.


One response to “Defending the Network from Applications

  1. Hi Terry:

    Please provide me your guidance on the best way to collect flow or NBAR information from nexus 6296 and 5596 switches.

    Kindest Regards,

    – thomas

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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.

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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.


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