Network Virtualization in the Data Center

Peter Welcher
Architect, Operations Technical Advisor

I presented a CMUG session on Network Virtualization in the Data Center today. Thanks to all those who turned out!  The presentation consisted of a mix of my “whiteboard” sketches and Cisco slides (used with permission). I tried to put things together to tell a story of what various virtual data center components can do and why we might want to use them. The talk then changed themes to what things look like when we use them together. Along the way I asked some questions of the audience and presented some thoughts that I’d like to think are a bit novel, about design and operational challenges and how we might best deploy this technology.

What does the next generation data center look like? Do we try to group VMware hosts using 1000v and scope where vMotion carries VM’s? How do we manage the virtual to physical mapping? Do we build mini-private-datacenters (per-project firewall, server load balancer, VM’s) and do they move as a unit? Scale up or out with virtual network devices? How do things have to change culturally and in how finances are handle so as to achieve faster deployment?

Technologies discussed include: VMware, Cisco 1000v, Cisco ASA 1000v, Cisco VSG, Cisco vWAAS, vNAM, and CSR 1000v. Off-stage mention goes to NetScaler server load balancer / ADC in VM form. VXLAN to some extent plays the black hat role (is it convenient or is it the evil villain of this story?).

The official abstract was:

This month, Dr. Pete Welcher, Principal Consultant as well as CCIE #1773 and CCSI #94014, will discuss the latest developments in network virtualization. Dr. Pete will talk about the latest capabilities of the Cisco 1000v virtual switch, virtual security appliances such as ASA 1000v, and virtual services router (CSR). Dr. Pete will focus on design implications for enterprise datacenter, multi-tenant, multi-zone automated datacenters, and datacenter or application mobility. Dr. Pete will also explain service chaining with vPath 2.0.

To cut to the chase, for those looking for a PDF of the presentation, it can be found here.

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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.