Click here to close now.

Welcome!

SDN Journal Authors: AppDynamics Blog, Roger Strukhoff, Liz McMillan, Lori MacVittie, Pat Romanski

Related Topics: Virtualization

Virtualization: Blog Post

Types of Network Automation

In networking, workflows are awfully complicated

In networking, workflows are awfully complicated.  There are many workflows, and the exact nature of each depends on a number of variables.  What task comes next is often dependent on the outcome of the previous task, and there is a large amount of data to navigate sometimes to complete a workflow.  Nevertheless, there plenty of opportunity to identify and automate common tasks and segments of workflows.  Once we’ve identified these, we need to ask ourselves, how exactly should we automate them?

Encapsulation
“Encapsulation” means a vendor (possibly a third party vendor) has written software that accomplishes the same thing the workflow does, but usually not the in the same linear way a customer would do it.  Sub-components within an encapsulation have well-designed interfaces for the purpose of accomplishing the goal.  The encapsulation would likely be written in Java or C.  In networking, encapsulated workflows are usually specific to a vendor’s product and often lack flexibility and features.  Encapsulated workflows will manifest as products or product features.

Consider the following workflow:

Untitled Drawing

Figure 1 shows a simplified packet walkthrough for a device.  Here, in the course of evaluating what is happening to a packet passing through this device, we have discovered a filter policy applied to the ingress interface.  This policy has two terms, and each of these terms references an access-list.  A network engineer would need to evaluate this filter policy to determine if it is doing something to the packets of interest.  The thing is, policy languages have a great deal of expressiveness and grammar.  They are also proprietary.  After the filter policy is evaluated, this workflow follows the forwarding pipeline to the egress interface.  If you are an expereinced network engineer, you will know that there are other elements in the pipeline that should be checked for any given network device.  However, there is enormous variation in the structure of the pipeline from one platform to the next.  Therefore, this is a great candidate for discrete encapsulation.* There are more effective ways of achieving the goal of a packet walkthrough than the way a network engineer must do it now (particularly for SDN products), and vendors know their platforms and policy idioms best.

*Discrete means it’s a workflow with a beginning and an end.  It can be manually invoked by a user, and runs for a finite amount of time, reaching some conclusion.

Automation
A workflow automation, on the other hand, consists of sub-components that are “glued together.”  These components were not built especially for automation, and the interfaces between these components were not designed for any particular workflow.  Automations can be developed by the customer, and very frequently discrete automations are employed by network engineers.  A great example here would be a script to configure the login banner on some number of devices.  These automations are written in “softer” languages like Python or Perl.

There is a clear need for Continuous Automation in networking.  Plexxi’s own DSE, now an integral part of the OpenStack Congress project, attempts to address this need.  As the name implies, Continuous means it’s an on-going process.  In the case of the Congress, it is a modular, event/data driven system.  In an environment where there are a plethora of protocols and APIs, each with their own idiosyncracies, this kind of automation makes sense.  Particularly in the context of an open-source community.

Hybrid
Curiously, some workflows may best be addressed by a combination of automation types.  For instance, if a customer wanted to know what was going on in the network relative to a particular application, that workflow automation could use the packet walkthrough encapsulation of a vendor combined with an automation tool like the DSE to harvest network meta-data from external systems about application endpoints.  This could yield a network map of the application’s endpoints along with visual indicators of issues in the network that could be impacting to the application.  In this way, the network engineer could quickly and accurately gauge the health of the network in the context of an application versus engaging in a tedious and error-prone search “by hand.”

Conclusion
Customers, vendors, and open source communities should work togethor to make networking better.  Identifying common workflows and determing the best way to automate them is a good first step.  This will require vendors to think differently about how they develop their products, with their user’s needs in mind first.  Traditionally, just getting a network feature to work and interoperate was the goal, but now we must consider how this feature fits into common workflows performed by network engineers.

[Fun fact:  Broccoli is a member of the cabbage family.  In spite of this, Broccoli tastes good.  When someone offers you cabbage, they are insulting you.]

The post Types of Network Automation appeared first on Plexxi.

Read the original blog entry...

More Stories By Derick Winkworth

Derick Winkworth has been a developer, network engineer, and IT architect in various verticals throughout his career.He is currently a Product Manager at Plexxi, Inc where he focuses on workflow automation and product UX.

@CloudExpo Stories
SYS-CON Events announced today the DevOps Foundation Certification Course, being held June ?, 2015, in conjunction with DevOps Summit and 16th Cloud Expo at the Javits Center in New York City, NY. This sixteen (16) hour course provides an introduction to DevOps – the cultural and professional movement that stresses communication, collaboration, integration and automation in order to improve the flow of work between software developers and IT operations professionals. Improved workflows will res...
SYS-CON Events announced today that Plutora, Inc., the leading global provider of enterprise release management and test environment management SaaS solutions, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Headquartered in Mountain View, California, Plutora provides enterprise release management and test environment SaaS solutions to clients in North America, Europe and Asia Pacific. Leading companies ...
SYS-CON Events announced today that Akana, formerly SOA Software, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Akana’s comprehensive suite of API Management, API Security, Integrated SOA Governance, and Cloud Integration solutions helps businesses accelerate digital transformation by securely extending their reach across multiple channels – mobile, cloud and Internet of Thi...
BroadSoft on Tuesday announced that it is a recipient of the 2014 Frost & Sullivan Market Leadership Award in the Hosted/Cloud Internet Protocol (IP) Telephony market for Latin America. According to Frost & Sullivan market research, the Latin America (LATAM) hosted/cloud Internet Protocol (IP) telephony market, including integrated unified communications and collaboration (UC&C) applications, is currently experiencing a rapid growth trajectory and is expected to exhibit a tenfold rise in annual...
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 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 In...
SYS-CON Events announced today that SafeLogic has been named “Bag Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. SafeLogic provides security products for applications in mobile and server/appliance environments. SafeLogic’s flagship product CryptoComply is a FIPS 140-2 validated cryptographic engine designed to secure data on servers, workstations, appliances, mobile devices, and in the Cloud....
SYS-CON Events announced today that FierceDevOps will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. FierceDevOps keeps software developers and IT operations personnel updated on the latest news and trends around the rapidly evolving role of the traditional IT worker.
SOASTA, the leader in performance analytics, today reported record growth of the CloudTest community, exceeding 30,000 registered users of the CloudTest platform in Q1 2015. SOASTA also announced widespread adoption of its Web and mobile testing solutions, with more than 1,600 customers completing more than 285,000 tests using CloudTest during the quarter. This rapid growth shows that DevOps-driven digital businesses are embracing a more continuous approach to testing, and CloudTest is meeting t...
SYS-CON Events announced today that StorPool Storage will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. StorPool is distributed storage software that allows service providers, enterprises and other cloud builders to run data storage on standard x86 servers, instead of using expensive and inefficient storage arrays (SAN).
SYS-CON Events announced today that QTS Realty Trust, one of the nation’s largest and fastest-growing providers of data center facilities and cloud services and a leader in security and compliance, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. QTS Realty Trust, Inc. (NYSE: QTS) is a leading national provider of data center solutions and fully managed services, and a leader in security and compliance...
ProfitBricks, the provider of painless cloud infrastructure for IaaS, today announced the release of a Node.js SDK written against its recently launched REST API. This new JavaScript based library provides coverage for all existing ProfitBricks REST API functions. With additional libraries set to release this month, ProfitBricks continues to prove its dedication to the DevOps community and commitment to making cloud migrations and cloud management painless. Node.js is an open source, cross-pl...
GENBAND has announced that SageNet is leveraging the Nuvia platform to deliver Unified Communications as a Service (UCaaS) to its large base of retail and enterprise customers. Nuvia’s cloud-based solution provides SageNet’s customers with a full suite of business communications and collaboration tools. Two large national SageNet retail customers have recently signed up to deploy the Nuvia platform and the company will continue to sell the service to new and existing customers. Nuvia’s capabili...
Today, IT is not just a cost center. IT is an enabler and driver of business. With the emergence of the hybrid cloud paradigm, IT now has increasingly more capabilities to create new strategic opportunities for a business. Hybrid cloud allows an organization to utilize multi-tenant public clouds, dedicated private clouds, bare metal hosting, and the associated support and services for the right use cases through an on-demand, XaaS model. This model of IT creates tremendous opportunities for busi...
SYS-CON Events announced today that IndependenceIT, a leading software provider of simplified IT management solutions for workspaces, applications and desktops-as-a-service, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. IndependenceIT's Cloud Workspace® Suite combines application, end-user and infrastructure management into a seamless, easy-to-manage platform, with a unified management interface an...
SYS-CON Events announced today that that Innodisk, the service-driven provider of industrial embedded flash and DRAM storage products and technologies, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Innodisk is a service-driven provider of industrial embedded flash and DRAM storage products and technologies. With satisfied customers across the embedded, aerospace and defense, cloud storage markets an...
SYS-CON Events announced today that WSM International (WSM), the world’s leading cloud and server migration services provider, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. WSM is a solutions integrator with a core focus on cloud and server migration, transformation and DevOps services.
Sonus Networks introduced the Sonus WebRTC Services Solution, a virtualized Web Real-Time Communications (WebRTC) offer, purpose-built for the Cloud. The WebRTC Services Solution provides signaling from WebRTC-to-WebRTC applications and interworking from WebRTC-to-Session Initiation Protocol (SIP), delivering advanced real-time communications capabilities on mobile applications and on websites, which are accessible via a browser.
SYS-CON Events announced today that Site24x7, the cloud infrastructure monitoring service, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Site24x7 is a cloud infrastructure monitoring service that helps monitor the uptime and performance of websites, online applications, servers, mobile websites and custom APIs. The monitoring is done from 50+ locations across the world and from various wireless carr...
SYS-CON Events announced today that Intelligent Systems Services will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Established in 1994, Intelligent Systems Services Inc. is located near Washington, DC, with representatives and partners nationwide. ISS’s well-established track record is based on the continuous pursuit of excellence in designing, implementing and supporting nationwide clients’ mission-cri...
SYS-CON Events announced today that B2Cloud, a provider of enterprise resource planning software, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. B2cloud develops the software you need. They have the ideal tools to help you work with your clients. B2Cloud’s main solutions include AGIS – ERP, CLOHC, AGIS – Invoice, and IZUM