Click here to close now.




















Welcome!

Industrial IoT Authors: Jim Taylor, Hurricane Labs, Trevor Parsons, Tom Lounibos, Roger Strukhoff

Related Topics: SDN Journal, Java IoT, Microservices Expo, Containers Expo Blog

SDN Journal: Blog Post

Scripting Is Automation, But Automation Is Not Scripting

There are many extremely complex clustered applications that rely entirely on exchanging information through APIs

Last week Greg Ferro (@etherealmind) wrote this article about his experience with scripting as a method for network automation, with the ultimate conclusion that scripting does not scale.

Early in my career I managed a small network that grew to be a IP over X.25 hub of Europe for a few years providing many countries with their first Internet connectivity. Scripts were everywhere, small ones to grab stats and create pretty graphs, others that continuously checked the status of links and would send emails when things went wrong.

While it is hard to argue with Greg’s complaints per se, I believe the key point is missing. And it has nothing to do with scripting. In a reply, Ivan’s last comment touches on the real issue.

We have been scripting our networks against CLIs forever and I will bet you most folks will consider it successful, even though it may be a pain. The article lists the pains, but not the reasons why. As a network industry, we have never ever considered the interaction with our network devices an API. Not in the true software engineering sense of an API.

There are many extremely complex clustered applications that rely entirely on exchanging information through APIs that are well documented, well versioned, well abstracted and properly promoted or deprecated. Creating and maintaining APIs is a real software engineering effort, a skill that requires true architecture, engineering and discipline. And we have not given our users anything close to it.

If we (that collective network industry) had truly considered our CLI an API, we would (and should) have been pushed aside a long time ago. The CLI is and always has been a simple interface for a human to tell a device what to do. It was not designed to be automated. It is not structured enough to be automated. Even large vendors have multiple flavors that are all industry standard, but all slightly different. And nowhere would you find a formal, full and complete dictionary of that CLI with all inputs, outputs, versions and options. The closest the network industry has had to a true API is SNMP, and that is indeed a very sad statement.

I think we have mentioned before that the networking industry is a bit slow to get to modern software engineering methods and practices, but the tide is changing. And whether you want to call it SDN or something else, the sheer volume and complexity of interaction with the network is pushing us to provide truly automated access to our devices and our networks.

And creating and maintaining APIs is far more than the technology used to access them. It does not matter whether its XML, JSON, REST, NETCONF or anything else. Those are definitions of how information is carried to and from the device and network. I can build a wonderful REST API that takes a CLI command as an argument and spits me back the output from that CLI command in some format. I am sure that sounds familiar to some, but this is not an API. Not in a truly meaningful way that would elevate our automation abilities.

Designing and implementing APIs is not trivial. Believe me, as an entirely API driven solution, we spend a tremendous amount of time discussing our APIs and abstractions to make sure they find that find balance between granularity, functionality, abstraction, scaling and a few other relevant qualifiers.  But the key is that they are part of any feature design from day one, they are part of the overarching architecture, not bolted on at the end. Our APIs are not perfect, there is no such thing, but they are modeled after the workflow of you the user doing the work required to keep the network running and thriving.

So when you need to configure MLAG on a set of Plexxi switches, we do not have a series of API calls to bundle ports together on a switch, give them a unique ID, then tie the switches together as an MLAG pair that shares that unique ID. Oh, and create an MLAG control channel between them, and make each of the switch local LAGs have the same set of VLANs on them. Our API will simply take a list of port objects from any amount of switches in a Plexxi network and turn them into an MLAG. An then you can simply take that entire entity and stick a VLAN on top, we will make sure the participating switches get the pieces they need. That is abstraction, that is workflow encapsulation, that is what APIs are supposed to give you. That is how simple LAG is supposed to be.

We have a long way to go as an industry to get to full APIs the way real software folks think about APIs. The CLI is not it. Scripting against a CLI (or a CLI hidden behind a layer of official sounding API terms) is a useful tool, but one that should be mostly retired to get to true programmable networks that are controlled by real controller (in the broadest definition of the word) using real APIs. Automation is not scripting.

[Today's fun fact: to make sure you do not think I am anti scripting, I once wrote a large chunk of a 10,000 line Perl4 system. It functioned very nicely for years as the RIPE database for IP address allocations back in the mid 90s. Thankfully it has since been tackled by real software engineers.]

The post Scripting is automation, but automation is not scripting appeared first on Plexxi.

Read the original blog entry...

More Stories By Marten Terpstra

Marten Terpstra is a Product Management Director at Plexxi Inc. Marten has extensive knowledge of the architecture, design, deployment and management of enterprise and carrier networks.

@ThingsExpo Stories
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducted a live demonstration of how quickly application development can happen when the need to comply wit...
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Architect for the Internet of Things and Intelligent Systems, described how to revolutionize your archit...
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
MuleSoft has announced the findings of its 2015 Connectivity Benchmark Report on the adoption and business impact of APIs. The findings suggest traditional businesses are quickly evolving into "composable enterprises" built out of hundreds of connected software services, applications and devices. Most are embracing the Internet of Things (IoT) and microservices technologies like Docker. A majority are integrating wearables, like smart watches, and more than half plan to generate revenue with APIs within the next year.
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
Growth hacking is common for startups to make unheard-of progress in building their business. Career Hacks can help Geek Girls and those who support them (yes, that's you too, Dad!) to excel in this typically male-dominated world. Get ready to learn the facts: Is there a bias against women in the tech / developer communities? Why are women 50% of the workforce, but hold only 24% of the STEM or IT positions? Some beginnings of what to do about it! In her Opening Keynote at 16th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, d...
In his keynote at 16th Cloud Expo, Rodney Rogers, CEO of Virtustream, discussed the evolution of the company from inception to its recent acquisition by EMC – including personal insights, lessons learned (and some WTF moments) along the way. Learn how Virtustream’s unique approach of combining the economics and elasticity of the consumer cloud model with proper performance, application automation and security into a platform became a breakout success with enterprise customers and a natural fit for the EMC Federation.
The Internet of Things is not only adding billions of sensors and billions of terabytes to the Internet. It is also forcing a fundamental change in the way we envision Information Technology. For the first time, more data is being created by devices at the edge of the Internet rather than from centralized systems. What does this mean for today's IT professional? In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists addressed this very serious issue of profound change in the industry.
Discussions about cloud computing are evolving into discussions about enterprise IT in general. As enterprises increasingly migrate toward their own unique clouds, new issues such as the use of containers and microservices emerge to keep things interesting. In this Power Panel at 16th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the state of cloud computing today, and what enterprise IT professionals need to know about how the latest topics and trends affect their organization.
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society-changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his session at @ThingsExpo, Jason Mondanaro, Director, Product Management at Metanga, discussed how you can plan to cooperate, partner, and form lasting all-star teams to change the world and it starts with business models and monetization strategies.
Converging digital disruptions is creating a major sea change - Cisco calls this the Internet of Everything (IoE). IoE is the network connection of People, Process, Data and Things, fueled by Cloud, Mobile, Social, Analytics and Security, and it represents a $19Trillion value-at-stake over the next 10 years. In her keynote at @ThingsExpo, Manjula Talreja, VP of Cisco Consulting Services, discussed IoE and the enormous opportunities it provides to public and private firms alike. She will share what businesses must do to thrive in the IoE economy, citing examples from several industry sectors.
There will be 150 billion connected devices by 2020. New digital businesses have already disrupted value chains across every industry. APIs are at the center of the digital business. You need to understand what assets you have that can be exposed digitally, what their digital value chain is, and how to create an effective business model around that value chain to compete in this economy. No enterprise can be complacent and not engage in the digital economy. Learn how to be the disruptor and not the disruptee.
Akana has released Envision, an enhanced API analytics platform that helps enterprises mine critical insights across their digital eco-systems, understand their customers and partners and offer value-added personalized services. “In today’s digital economy, data-driven insights are proving to be a key differentiator for businesses. Understanding the data that is being tunneled through their APIs and how it can be used to optimize their business and operations is of paramount importance,” said Alistair Farquharson, CTO of Akana.
Business as usual for IT is evolving into a "Make or Buy" decision on a service-by-service conversation with input from the LOBs. How does your organization move forward with cloud? In his general session at 16th Cloud Expo, Paul Maravei, Regional Sales Manager, Hybrid Cloud and Managed Services at Cisco, discusses how Cisco and its partners offer a market-leading portfolio and ecosystem of cloud infrastructure and application services that allow you to uniquely and securely combine cloud business applications and services across multiple cloud delivery models.
The enterprise market will drive IoT device adoption over the next five years. In his session at @ThingsExpo, John Greenough, an analyst at BI Intelligence, division of Business Insider, analyzed how companies will adopt IoT products and the associated cost of adopting those products. John Greenough is the lead analyst covering the Internet of Things for BI Intelligence- Business Insider’s paid research service. Numerous IoT companies have cited his analysis of the IoT. Prior to joining BI Intelligence, he worked analyzing bank technology for Corporate Insight and The Clearing House Payment...
"Optimal Design is a technology integration and product development firm that specializes in connecting devices to the cloud," stated Joe Wascow, Co-Founder & CMO of Optimal Design, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unp...
Electric Cloud and Arynga have announced a product integration partnership that will bring Continuous Delivery solutions to the automotive Internet-of-Things (IoT) market. The joint solution will help automotive manufacturers, OEMs and system integrators adopt DevOps automation and Continuous Delivery practices that reduce software build and release cycle times within the complex and specific parameters of embedded and IoT software systems.
"ciqada is a combined platform of hardware modules and server products that lets people take their existing devices or new devices and lets them be accessible over the Internet for their users," noted Geoff Engelstein of ciqada, a division of Mars International, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
Internet of Things is moving from being a hype to a reality. Experts estimate that internet connected cars will grow to 152 million, while over 100 million internet connected wireless light bulbs and lamps will be operational by 2020. These and many other intriguing statistics highlight the importance of Internet powered devices and how market penetration is going to multiply many times over in the next few years.