Welcome!

Linux Containers Authors: Liz McMillan, Elizabeth White, Pat Romanski, Mehdi Daoudi, XebiaLabs Blog

Related Topics: SDN Journal, Java IoT, Microservices Expo, Linux Containers, Open Source Cloud, Containers Expo Blog

SDN Journal: Blog Post

Changing the Way We Configure and Provision Our Networks

In enterprises we have never really made a big distinction between configuration and provisioning

Some people believe good or bad things always happen in threes. I believe you will always be able to find three (and probably more) things that are good or bad and somewhat related, but sometimes I get surprised by the apparent coincidental appearance of several closely related “things”. Last week the folks at networkheresy.com posted a second installment of their “policy in the datacenter” discussion, Cisco announced the acquisition of tail-f and internal to Plexxi we had several intense architectural discussions around Configuration, Provisioning and Policy management. Maybe we can declare June CP&P month for networking.

It is mostly accepted that configuration deals with the deployment of devices and applications within an infrastructure. For network devices, it covers the portions of creating a fabric, protocols to maintain this fabric, access and control to the device itself, management connectivity etc. Once a network device is configured, it is a functioning element in a network.

Provisioning is more a telco term, focused on creating the customer facing end of a device of applications. For network devices, this would cover ports that are facing customer or end devices, the edge protocols required, VLANs, IP subnets, etc.

Lastly, policy defines a level of communication service that is created across the configured infrastructure through the attached provisioned interfaces. It defines what communication is allowed and not allowed and with what specific service and service levels.

In enterprises we have never really made a big distinction between configuration and provisioning. But with the evolution to a virtualized infrastructure and more rapid client facing changes as a result of VM creation and movement, I believe the two have enough differences that it makes sense to adopt this separation more broadly.

I catch myself using them interchangeably at times, but there are very distinct differences between them, even if all of them end up as a set of instructions to a switch or set of switches, physical or virtual. The types of instructions are different for each type, the folks responsible for their functionality are different, and the rate of change is different.

More importantly though, the mechanism by which we instruct our network components is rapidly changing. The complexity of the configuration and policy components and the sheer volume and rate of change of the provisioning component is driving more automated methods of instructing our network elements what to do. We have long ago adopted centralized database driven CP&P systems in most our world.

Except for networking. A very large majority of instructions for network devices is still hand crafted, or script-assisted hand crafted. And the entirety of the instruction set for these devices lives on the switches itself. For which we have then created systems that capture and archive them for backup purposes and forensics. When something goes wrong with the device, we go find the latest backup we have and attempt to restore the service.

But this is all changing. Finally. Newer network solutions use centralized systems that have real databases behind them to power the information that needs to be stored, shared, backed up, check pointed, logged, replicated and all the other good stuff real databases have solved for many years.

The biggest hump we need to get past is one of control. Regardless of where or how CP&P data is stored, the more important question is who controls the data. Even if this data is stored on a v- or pSwitch, that same switch should not be the master of that information any longer. There are portions of CP&P information that have network wide meaning and should be specified in a network wide manner. Today we manually construct network wide provisioning or policy semantics. We have to get to a point where we define these in network wide terms and let our tools worry about what that means for the individual network elements that create the service.

We started this a few years ago with abstracted policies we call Affinities. Policies that are defined network wide, without any specificity to location or what elements to apply the policy to. In Plexxi Control, similar concepts exist for some of the provisioning: certain types of data we consider global, they are used and applied network wide without you worrying what elements it applies to.

Centralized or federated CP&P provides huge benefits and potential. All the backend tools exist to make this safe, replicated, audited and logged, better so than any legacy network system. If only we can get our minds past the change in control and not expect the element to be the master source of its data. It is one of the many things we need to accept to allow the network to change.

The post Changing the way we configure and provision our networks 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
When shopping for a new data processing platform for IoT solutions, many development teams want to be able to test-drive options before making a choice. Yet when evaluating an IoT solution, it’s simply not feasible to do so at scale with physical devices. Building a sensor simulator is the next best choice; however, generating a realistic simulation at very high TPS with ease of configurability is a formidable challenge. When dealing with multiple application or transport protocols, you would be...
SYS-CON Events announced today that Secure Channels, a cybersecurity firm, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Secure Channels, Inc. offers several products and solutions to its many clients, helping them protect critical data from being compromised and access to computer networks from the unauthorized. The company develops comprehensive data encryption security strategie...
An increasing number of companies are creating products that combine data with analytical capabilities. Running interactive queries on Big Data requires complex architectures to store and query data effectively, typically involving data streams, an choosing efficient file format/database and multiple independent systems that are tied together through custom-engineered pipelines. In his session at @BigDataExpo at @ThingsExpo, Tomer Levi, a senior software engineer at Intel’s Advanced Analytics ...
WebRTC is great technology to build your own communication tools. It will be even more exciting experience it with advanced devices, such as a 360 Camera, 360 microphone, and a depth sensor camera. In his session at @ThingsExpo, Masashi Ganeko, a manager at INFOCOM Corporation, will introduce two experimental projects from his team and what they learned from them. "Shotoku Tamago" uses the robot audition software HARK to track speakers in 360 video of a remote party. "Virtual Teleport" uses a...
SYS-CON Events announced today that App2Cloud will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. App2Cloud is an online Platform, specializing in migrating legacy applications to any Cloud Providers (AWS, Azure, Google Cloud).
When shopping for a new data processing platform for IoT solutions, many development teams want to be able to test-drive options before making a choice. Yet when evaluating an IoT solution, it’s simply not feasible to do so at scale with physical devices. Building a sensor simulator is the next best choice; however, generating a realistic simulation at very high TPS with ease of configurability is a formidable challenge. When dealing with multiple application or transport protocols, you would be...
Internet-of-Things discussions can end up either going down the consumer gadget rabbit hole or focused on the sort of data logging that industrial manufacturers have been doing forever. However, in fact, companies today are already using IoT data both to optimize their operational technology and to improve the experience of customer interactions in novel ways. In his session at @ThingsExpo, Gordon Haff, Red Hat Technology Evangelist, shared examples from a wide range of industries – including en...
Detecting internal user threats in the Big Data eco-system is challenging and cumbersome. Many organizations monitor internal usage of the Big Data eco-system using a set of alerts. This is not a scalable process given the increase in the number of alerts with the accelerating growth in data volume and user base. Organizations are increasingly leveraging machine learning to monitor only those data elements that are sensitive and critical, autonomously establish monitoring policies, and to detect...
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. Jack Norris reviews best practices to show how companies develop, deploy, and dynamically update these applications and how this data-first...
Intelligent Automation is now one of the key business imperatives for CIOs and CISOs impacting all areas of business today. In his session at 21st Cloud Expo, Brian Boeggeman, VP Alliances & Partnerships at Ayehu, will talk about how business value is created and delivered through intelligent automation to today’s enterprises. The open ecosystem platform approach toward Intelligent Automation that Ayehu delivers to the market is core to enabling the creation of the self-driving enterprise.
SYS-CON Events announced today that Grape Up will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct. 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Grape Up is a software company specializing in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market across the U.S. and Europe, Grape Up works with a variety of customers from emergi...
"We're a cybersecurity firm that specializes in engineering security solutions both at the software and hardware level. Security cannot be an after-the-fact afterthought, which is what it's become," stated Richard Blech, Chief Executive Officer at Secure Channels, in this SYS-CON.tv interview at @ThingsExpo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA.
Consumers increasingly expect their electronic "things" to be connected to smart phones, tablets and the Internet. When that thing happens to be a medical device, the risks and benefits of connectivity must be carefully weighed. Once the decision is made that connecting the device is beneficial, medical device manufacturers must design their products to maintain patient safety and prevent compromised personal health information in the face of cybersecurity threats. In his session at @ThingsExpo...
SYS-CON Events announced today that Massive Networks will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Massive Networks mission is simple. To help your business operate seamlessly with fast, reliable, and secure internet and network solutions. Improve your customer's experience with outstanding connections to your cloud.
Everything run by electricity will eventually be connected to the Internet. Get ahead of the Internet of Things revolution and join Akvelon expert and IoT industry leader, Sergey Grebnov, in his session at @ThingsExpo, for an educational dive into the world of managing your home, workplace and all the devices they contain with the power of machine-based AI and intelligent Bot services for a completely streamlined experience.
Because IoT devices are deployed in mission-critical environments more than ever before, it’s increasingly imperative they be truly smart. IoT sensors simply stockpiling data isn’t useful. IoT must be artificially and naturally intelligent in order to provide more value In his session at @ThingsExpo, John Crupi, Vice President and Engineering System Architect at Greenwave Systems, will discuss how IoT artificial intelligence (AI) can be carried out via edge analytics and machine learning techn...
SYS-CON Events announced today that Datera, that offers a radically new data management architecture, has been named "Exhibitor" of SYS-CON's 21st International Cloud Expo ®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Datera is transforming the traditional datacenter model through modern cloud simplicity. The technology industry is at another major inflection point. The rise of mobile, the Internet of Things, data storage and Big...
SYS-CON Events announced today that GrapeUp, the leading provider of rapid product development at the speed of business, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Grape Up is a software company, specialized in cloud native application development and professional services related to Cloud Foundry PaaS. With five expert teams that operate in various sectors of the market acr...
In the enterprise today, connected IoT devices are everywhere – both inside and outside corporate environments. The need to identify, manage, control and secure a quickly growing web of connections and outside devices is making the already challenging task of security even more important, and onerous. In his session at @ThingsExpo, Rich Boyer, CISO and Chief Architect for Security at NTT i3, discussed new ways of thinking and the approaches needed to address the emerging challenges of security i...
SYS-CON Events announced today that CA Technologies has been named "Platinum Sponsor" of SYS-CON's 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business - from apparel to energy - is being rewritten by software. From planning to development to management to security, CA creates software that fuels transformation for companies in the applic...