|By Michael Bushong||
|July 21, 2014 06:00 AM EDT||
Whenever a new networking platform is evaluated, one of the early sales calls includes a packet walkthrough. In excruciating detail, someone walks the customer through the path a packet takes from ingress port, through the device, across the switching or routing ASIC, and back down to the egress port. The technical deep dive frequently includes internals that even the vendor engineers are not all familiar with.
Some people will justify the depth by talking about troubleshooting complex systems. Others will pull on random technical details that suggest one platform is better than another in some regard or under some set of circumstances. Others will actually parrot some of the vendor’s marketing efforts with claims of flexibility, scalability, or extensibility.
While all of these are absolutely valid, they actually miss the biggest reason the packet walkthrough is a ubiquitous part of every selling motion.
We networking gearheads are a skeptical lot. We learned long ago that listening to someone and taking their words for granted was a short path to operational hell. Their words might have sounded true but their promises rang hollow. The platform, or even the architecture, did not perform as advertised. And because the result of a network failure is catastrophically worse than any other infrastructure failure, we have collectively vowed to look at every opportunity with a sideways glance from a somewhat disbelieving perspective.
Trust but verify
The real reason that we evaluate in such detail new platforms and solutions is not because of the inherent troubleshooting value of examining the architecture. Nor is it because we can determine with any certainty what the scaling limits are based on a cursory glance at the internals of a system. We examine architectures in detail because it allows us to put the vendor under a bit of scrutiny. If they stand up to a few somewhat randomly placed questions (less random if you have had particularly painful issues in the past), then we believe with a bit more certainty other claims that are made.
I don’t mention this because I think this is a bad way to do things, mind you. Rather, I bring this up because the collective psyche of the networking buyer needs to be understood if architectural advances like SDN and abstractions are to bring any any real value.
Control freaks and abstraction
Networking generally has operated through meticulous control for decades. Network management via configuration knob puts a ton of power at the hands of the network architect. Behavior can be precisely specified. And when something goes wrong, it can be queried to surmise the cause.
A shift to abstractions might make things easier in terms of actual physical workload (how much typing there is), but it comes with a gigantic leap of faith. Control freaks might complain about how much effort things are, but they absolutely cringe at the thought of giving any of that work up lest something go wrong.
When behavior is specified by an abstraction (as with an edge policy abstraction), not only must the syntax be correct but also the translation of that abstraction into underlying behavior. The former is easy to verify, but the latter requires a bit of faith on behalf of the user that the vendor has done the right thing under the hood.
A peek under the hood
There are already a bunch of industry efforts around SDN and abstractions. Whether it’s vendor-specific (as with Cisco’s ACI) or a part of open source (OpenDaylight, for example), there are a number of movements that either focus on or include some abstraction as part of the solution. But if our past teaches us anything, it is that network architects are not happy with a basic understanding of what the abstractions do. They require additional information so they have at least some concept of how they do it.
It would seem that people peddling abstractions will ultimately need to provide the equivalent of a packet walkthrough. With platforms, this is easy. Where does the packet physically enter the device, and where does it leave? But with abstractions, the equivalent is a bit harder.
Initially, this dynamic favors abstractions that merely replace well-understood configuration with something less. The abstraction walkthrough for a replacement is essentially an expansion of the abstraction into the underlying configuration knobs. Think of this as more indirection than abstraction, more similar to header files than anything else.
But if abstractions are about more than saving keystrokes, this type of walkthrough will not permit itself for even slightly more complex scenarios. This leaves the abstraction salesperson in a tough spot: how do you demonstrate that something works if you cannot provide a meaningful look at the internals?
Behavior determines success
The long-term answer here is going to necessarily fall to actual behavior. The creators of abstractions will need to show in the affirmative that the network (or the applications) behave appropriately when an abstraction is used. This might seem obvious, but the implications are actually quite profound.
For networks today, there are lots of ways to verify specific state in the network (BGP neighbors, interface stats, and so on). And when there is no network state, the configuration itself serves as the check. But what if that configuration is not there?
In the long term, the infrastructure broadly (including but not limited to the network) will need to be instrumented with meaningful abstractions in mind. If abstractions become common around managing edge policy, there will need to be additional ways to instrument specific applications, tenants, and flows. For example, if abstractions allow network engineers to specify a particular application as PCI compliant, then there might need to be ways to verify PCI compliance via command.
The bottom line
The abstraction market initially will be focused on keyboard time reduction. That is a fine place to start, and it is easy to verify. But if the real value of abstractions is in the removal of complexity (not just masking it) and the increased collaboration of infrastructure, then abstraction salespeople are going to need to think through the post-sales elements of their products. Those that do this early will certainly find that having an abstraction walkthrough shortens the evaluation time for new solutions. And if no one else has done this, the existence of such a walkthrough could prove a killer element of the product sales cycle.
[Today’s fun fact: Right-handed people tend to chew food on the right side of their mouths, and lefties on the left side.]
The post Network abstractions need equivalent of packet walkthrough appeared first on Plexxi.
If there is anything we have learned by now, is that every business paves their own unique path for releasing software- every pipeline, implementation and practices are a bit different, and DevOps comes in all shapes and sizes. Software delivery practices are often comprised of set of several complementing (or even competing) methodologies – such as leveraging Agile, DevOps and even a mix of ITIL, to create the combination that’s most suitable for your organization and that maximize your busines...
Apr. 28, 2016 08:45 PM EDT Reads: 1,698
Struggling to keep up with increasing application demand? Learn how Platform as a Service (PaaS) can streamline application development processes and make resource management easy.
Apr. 28, 2016 07:30 PM EDT Reads: 1,937
New Relic, Inc. has announced a set of new features across the New Relic Software Analytics Cloud that offer IT operations teams increased visibility, and the ability to diagnose and resolve performance problems quickly. The new features further IT operations teams’ ability to leverage data and analytics, as well as drive collaboration and a common, shared understanding between teams. Software teams are under pressure to resolve performance issues quickly and improve availability, as the comple...
Apr. 28, 2016 07:15 PM EDT Reads: 2,352
The IoT has the potential to create a renaissance of manufacturing in the US and elsewhere. In his session at 18th Cloud Expo, Florent Solt, CTO and chief architect of Netvibes, will discuss how the expected exponential increase in the amount of data that will be processed, transported, stored, and accessed means there will be a huge demand for smart technologies to deliver it. Florent Solt is the CTO and chief architect of Netvibes. Prior to joining Netvibes in 2007, he co-founded Rift Technol...
Apr. 28, 2016 07:00 PM EDT Reads: 1,450
SYS-CON Events announced today that Enzu, a leading provider of cloud hosting solutions, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Enzu’s mission is to be the leading provider of enterprise cloud solutions worldwide. Enzu enables online businesses to use its IT infrastructure to their competitive advantage. By offering a suite of proven hosting and management services, Enzu wants companies to foc...
Apr. 28, 2016 05:30 PM EDT Reads: 790
[session] Don’t Forget the Ops: Build Operations into Your Cloud By @BMCSoftware | @CloudExpo #Cloud
Many private cloud projects were built to deliver self-service access to development and test resources. While those clouds delivered faster access to resources, they lacked visibility, control and security needed for production deployments. In their session at 18th Cloud Expo, Steve Anderson, Product Manager at BMC Software, and Rick Lefort, Principal Technical Marketing Consultant at BMC Software, will discuss how a cloud designed for production operations not only helps accelerate developer...
Apr. 28, 2016 05:00 PM EDT Reads: 976
Join IBM June 8 at 18th Cloud Expo at the Javits Center in New York City, NY, and learn how to innovate like a startup and scale for the enterprise. You need to deliver quality applications faster and cheaper, attract and retain customers with an engaging experience across devices, and seamlessly integrate your enterprise systems. And you can't take 12 months to do it.
Apr. 28, 2016 04:45 PM EDT Reads: 1,710
This is not a small hotel event. It is also not a big vendor party where politicians and entertainers are more important than real content. This is Cloud Expo, the world's longest-running conference and exhibition focused on Cloud Computing and all that it entails. If you want serious presentations and valuable insight about Cloud Computing for three straight days, then register now for Cloud Expo.
Apr. 28, 2016 04:30 PM EDT Reads: 1,601
Based on the open source Cloud Foundry technology, IBM Bluemix is an open-standard, cloud-based platform for building, managing, and running applications of all types such as web, mobile, Big Data, and new smart devices. Bluemix abstracts and hides most of the complexities that are associated with hosting and managing cloud-based applications. As an application developer, you can focus on developing your application without having to manage the infrastructure that is required to host it. For mob...
Apr. 28, 2016 04:00 PM EDT Reads: 921
The proper isolation of resources is essential for multi-tenant environments. The traditional approach to isolate resources is, however, rather heavyweight. In his session at 18th Cloud Expo, Igor Drobiazko, co-founder of elastic.io, will draw upon their own experience with operating a Docker container-based infrastructure on a large scale and present a lightweight solution for resource isolation using microservices. He will also discuss the implementation of microservices in data and applicat...
Apr. 28, 2016 04:00 PM EDT Reads: 1,622
As you respond to increasing requests for new analytics, you need fast and flexible technology in your arsenal so that you can deploy the right workload to the right platform for the need at hand. Do you need self-service and fast time to value? Do you have data and application control and privacy needs, along with strict SLAs to meet? IBM dashDB™ is data warehouse technology powered by in-memory computing and in-database analytics that are designed for fast results, scalability and more.
Apr. 28, 2016 03:30 PM EDT Reads: 1,490
Machine Learning helps make complex systems more efficient. By applying advanced Machine Learning techniques such as Cognitive Fingerprinting, wind project operators can utilize these tools to learn from collected data, detect regular patterns, and optimize their own operations. In his session at 18th Cloud Expo, Stuart Gillen, Director of Business Development at SparkCognition, will discuss how research has demonstrated the value of Machine Learning in delivering next generation analytics to im...
Apr. 28, 2016 02:30 PM EDT Reads: 1,536
Peak 10, Inc., has announced the implementation of IT service management, a business process alignment initiative based on the widely adopted Information Technology Infrastructure Library (ITIL) framework. The implementation of IT service management enhances Peak 10’s current service-minded approach to IT delivery by propelling the company to deliver higher levels of personalized and prompt service. The majority of Peak 10’s operations employees have been trained and certified in the ITIL frame...
Apr. 28, 2016 02:15 PM EDT Reads: 766
The paradigm has shifted. A Gartner survey shows that 43% of organizations are using or plan to implement the Internet of Things in 2016. However, not just a handful of companies are still using the old-style ad-hoc trial-and-error ways, unaware of the critical barriers, paint points, traps, and hidden roadblocks. How can you become a winner? In his session at @ThingsExpo, Tony Shan will present a methodical approach to guide the holistic adoption and enablement of IoT implementations. This ov...
Apr. 28, 2016 01:00 PM EDT Reads: 1,484
SYS-CON Events announced today that Stratoscale, the software company developing the next generation data center operating system, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. Stratoscale is revolutionizing the data center with a zero-to-cloud-in-minutes solution. With Stratoscale’s hardware-agnostic, Software Defined Data Center (SDDC) solution to store everything, run anything and scale everywhere...
Apr. 28, 2016 12:45 PM EDT Reads: 1,437
Angular 2 is a complete re-write of the popular framework AngularJS. Programming in Angular 2 is greatly simplified – now it's a component-based well-performing framework. This immersive one-day workshop at 18th Cloud Expo, led by Yakov Fain, a Java Champion and a co-founder of the IT consultancy Farata Systems and the product company SuranceBay, will provide you with everything you wanted to know about Angular 2.
Apr. 28, 2016 12:15 PM EDT Reads: 1,582
Redis is not only the fastest database, but it has become the most popular among the new wave of applications running in containers. Redis speeds up just about every data interaction between your users or operational systems. In his session at 18th Cloud Expo, Dave Nielsen, Developer Relations at Redis Labs, will shares the functions and data structures used to solve everyday use cases that are driving Redis' popularity.
Apr. 28, 2016 12:00 PM EDT Reads: 954
SYS-CON Events announced today that Men & Mice, the leading global provider of DNS, DHCP and IP address management overlay solutions, will exhibit at SYS-CON's 18th International Cloud Expo®, which will take place on June 7-9, 2016, at the Javits Center in New York City, NY. The Men & Mice Suite overlay solution is already known for its powerful application in heterogeneous operating environments, enabling enterprises to scale without fuss. Building on a solid range of diverse platform support,...
Apr. 28, 2016 11:30 AM EDT Reads: 2,158
Up until last year, enterprises that were looking into cloud services usually undertook a long-term pilot with one of the large cloud providers, running test and dev workloads in the cloud. With cloud’s transition to mainstream adoption in 2015, and with enterprises migrating more and more workloads into the cloud and in between public and private environments, the single-provider approach must be revisited. In his session at 18th Cloud Expo, Yoav Mor, multi-cloud solution evangelist at Cloudy...
Apr. 28, 2016 11:30 AM EDT Reads: 1,342
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
Apr. 28, 2016 11:00 AM EDT Reads: 741