Welcome!

SDN Journal Authors: Elizabeth White, Pat Romanski, TJ Randall, Yeshim Deniz, Liz McMillan

Related Topics: SDN Journal

SDN Journal: Blog Post

Software Defined Networking | Part 5 By @MJannery | @CloudExpo [#SDN #Cloud]

Now, Never, Don’t Know? A 10-Part Series (part 5)

In part 4 of our series on SDN, I discussed some of SDN's most commonly asserted benefits. Here I'll look at the drawbacks, the majority of which are organizational or financial and not technical.  The most commonly cited reasons for actively not deploying SDN are:

Staffing

SDN requires significant staff re-training or recruitment.  There are very few staff with proven SDN deployment / management skills making recruitment difficult and therefore re-training of existing staff is necessary.  Of course having retrained those staff, their retention with their new, highly desirable, scarce skills might prove problematic too!

Reorganization

To use SDN effectively there needs to be a sharing of knowledge between business requirements, applications, servers and networking teams.  This might take the form of cross-discipline teams, or individuals with broad cross-discipline understanding.  Without this, mapping services to application requirements and ultimately network requirements cannot occur effectively.  This type of breakdown or merging of traditional ‘silos' is already occurring - e.g., with the emergence of DevOps - albeit slowly!

Cost

Whilst proponents of SDN cite the real cost benefits of running a more highly utilized network and the less quantifiable benefits of a more agile network with more rapid application and service deployment, re-scaling, etc. they often fail to factor in the costs of retraining, reorganization, new hardware and software licenses and the hidden costs of loss of business continuity during initial deployment.

Security

Whilst tighter, more dynamic security enforcement is recognized as an advantage of SDN, it is also a new, rapidly evolving technology with new protocols and new weaknesses and vulnerabilities.  Such a lack of maturity and the possibilities for compromising the network control layers make SDN an appealing target for hackers, industrial espionage, etc.

In part 6, we'll take a look at obstacles to deployment.

More Stories By Michael Jannery

Michael Jannery is CEO of Entuity. He is responsible for setting the overall corporate strategy, vision, and direction for the company. He brings more than 30 years of experience to Entuity with 25 years in executive management.

Prior to Entuity, he was Vice President of Marketing for Proficiency, where he established the company as the thought, technology, and market leader in a new product lifecycle management (PLM) sub-market. Earlier, Michael held VP of Marketing positions at Gradient Technologies, where he established them as a market leader in the Internet security sector, and Cayenne Software, a leader in the software and database modeling market. He began his career in engineering.

CloudEXPO Stories
The platform combines the strengths of Singtel's extensive, intelligent network capabilities with Microsoft's cloud expertise to create a unique solution that sets new standards for IoT applications," said Mr Diomedes Kastanis, Head of IoT at Singtel. "Our solution provides speed, transparency and flexibility, paving the way for a more pervasive use of IoT to accelerate enterprises' digitalisation efforts. AI-powered intelligent connectivity over Microsoft Azure will be the fastest connected path for IoT innovators to scale globally, and the smartest path to cross-device synergy in an instrumented, connected world.
There are many examples of disruption in consumer space – Uber disrupting the cab industry, Airbnb disrupting the hospitality industry and so on; but have you wondered who is disrupting support and operations? AISERA helps make businesses and customers successful by offering consumer-like user experience for support and operations. We have built the world’s first AI-driven IT / HR / Cloud / Customer Support and Operations solution.
ScaleMP is presenting at CloudEXPO 2019, held June 24-26 in Santa Clara, and we’d love to see you there. At the conference, we’ll demonstrate how ScaleMP is solving one of the most vexing challenges for cloud — memory cost and limit of scale — and how our innovative vSMP MemoryONE solution provides affordable larger server memory for the private and public cloud. Please visit us at Booth No. 519 to connect with our experts and learn more about vSMP MemoryONE and how it is already serving some of the world’s largest data centers. Click here to schedule a meeting with our experts and executives.
Darktrace is the world's leading AI company for cyber security. Created by mathematicians from the University of Cambridge, Darktrace's Enterprise Immune System is the first non-consumer application of machine learning to work at scale, across all network types, from physical, virtualized, and cloud, through to IoT and industrial control systems. Installed as a self-configuring cyber defense platform, Darktrace continuously learns what is ‘normal' for all devices and users, updating its understanding as the environment changes.
Codete accelerates their clients growth through technological expertise and experience. Codite team works with organizations to meet the challenges that digitalization presents. Their clients include digital start-ups as well as established enterprises in the IT industry. To stay competitive in a highly innovative IT industry, strong R&D departments and bold spin-off initiatives is a must. Codete Data Science and Software Architects teams help corporate clients to stay up to date with the modern business digitalization solutions. Achieve up to 50% early-stage technological process development cost cutdown with science and R&D-driven investment strategy with Codete's support.