|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.
One of the bewildering things about DevOps is integrating the massive toolchain including the dozens of new tools that seem to crop up every year. Part of DevOps is Continuous Delivery and having a complex toolchain can add additional integration and setup to your developer environment. In his session at @DevOpsSummit at 18th Cloud Expo, Miko Matsumura, Chief Marketing Officer of Gradle Inc., will discuss which tools to use in a developer stack, how to provision the toolchain to minimize onboa...
Feb. 13, 2016 08:00 PM EST Reads: 145
With an estimated 50 billion devices connected to the Internet by 2020, several industries will begin to expand their capabilities for retaining end point data at the edge to better utilize the range of data types and sheer volume of M2M data generated by the Internet of Things. In his session at @ThingsExpo, Don DeLoach, CEO and President of Infobright, will discuss the infrastructures businesses will need to implement to handle this explosion of data by providing specific use cases for filte...
Feb. 13, 2016 02:00 PM EST Reads: 258
SYS-CON Events announced today that Avere Systems, a leading provider of enterprise storage for the hybrid cloud, 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. Avere delivers a more modern architectural approach to storage that doesn’t require the overprovisioning of storage capacity to achieve performance, overspending on expensive storage media for inactive data or the overbuilding of data centers ...
Feb. 13, 2016 01:30 PM EST Reads: 146
SYS-CON Events announced today that Pythian, a global IT services company specializing in helping companies adopt disruptive technologies to optimize revenue-generating systems, has been named “Bronze Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2015 at the Javits Center in New York, New York. Founded in 1997, Pythian is a global IT services company that helps companies compete by adopting disruptive technologies such as cloud, Big Data, advanced analytics, and DevO...
Feb. 13, 2016 01:30 PM EST Reads: 286
SYS-CON Events announced today that Commvault, a global leader in enterprise data protection and information management, has been named “Bronze Sponsor” of 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, and the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Commvault is a leading provider of data protection and information management...
Feb. 13, 2016 12:45 PM EST Reads: 473
The Quantified Economy represents the total global addressable market (TAM) for IoT that, according to a recent IDC report, will grow to an unprecedented $1.3 trillion by 2019. With this the third wave of the Internet-global proliferation of connected devices, appliances and sensors is poised to take off in 2016. In his session at @ThingsExpo, David McLauchlan, CEO and co-founder of Buddy Platform, will discuss how the ability to access and analyze the massive volume of streaming data from mil...
Feb. 13, 2016 12:00 PM EST
SYS-CON Events announced today that Alert Logic, Inc., the leading provider of Security-as-a-Service solutions for the cloud, 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. Alert Logic, Inc., provides Security-as-a-Service for on-premises, cloud, and hybrid infrastructures, delivering deep security insight and continuous protection for customers at a lower cost than traditional security solutions. Ful...
Feb. 13, 2016 12:00 PM EST Reads: 474
SYS-CON Events announced today that Interoute, owner-operator of one of Europe's largest networks and a global cloud services platform, has been named “Bronze Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2015 at the Javits Center in New York, New York. Interoute is the owner-operator of one of Europe's largest networks and a global cloud services platform which encompasses 12 data centers, 14 virtual data centers and 31 colocation centers, with connections to 195 ad...
Feb. 13, 2016 12:00 PM EST Reads: 451
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,...
Feb. 13, 2016 11:45 AM EST Reads: 278
Fortunately, meaningful and tangible business cases for IoT are plentiful in a broad array of industries and vertical markets. These range from simple warranty cost reduction for capital intensive assets, to minimizing downtime for vital business tools, to creating feedback loops improving product design, to improving and enhancing enterprise customer experiences. All of these business cases, which will be briefly explored in this session, hinge on cost effectively extracting relevant data from ...
Feb. 13, 2016 11:30 AM EST Reads: 158
WebSocket is effectively a persistent and fat pipe that is compatible with a standard web infrastructure; a "TCP for the Web." If you think of WebSocket in this light, there are other more hugely interesting applications of WebSocket than just simply sending data to a browser. In his session at 18th Cloud Expo, Frank Greco, Director of Technology for Kaazing Corporation, will compare other modern web connectivity methods such as HTTP/2, HTTP Streaming, Server-Sent Events and new W3C event APIs ...
Feb. 13, 2016 11:30 AM EST
SYS-CON Events announced today that iDevices®, the preeminent brand in the connected home industry, 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. iDevices, the preeminent brand in the connected home industry, has a growing line of HomeKit-enabled products available at the largest retailers worldwide. Through the “Designed with iDevices” co-development program and its custom-built IoT Cloud Infrastruc...
Feb. 13, 2016 11:00 AM EST Reads: 154
Companies can harness IoT and predictive analytics to sustain business continuity; predict and manage site performance during emergencies; minimize expensive reactive maintenance; and forecast equipment and maintenance budgets and expenditures. Providing cost-effective, uninterrupted service is challenging, particularly for organizations with geographically dispersed operations.
Feb. 13, 2016 11:00 AM EST
There will be new vendors providing applications, middleware, and connected devices to support the thriving IoT ecosystem. This essentially means that electronic device manufacturers will also be in the software business. Many will be new to building embedded software or robust software. This creates an increased importance on software quality, particularly within the Industrial Internet of Things where business-critical applications are becoming dependent on products controlled by software. Qua...
Feb. 13, 2016 11:00 AM EST
Join us at Cloud Expo | @ThingsExpo 2016 – June 7-9 at the Javits Center in New York City and November 1-3 at the Santa Clara Convention Center in Santa Clara, CA – and deliver your unique message in a way that is striking and unforgettable by taking advantage of SYS-CON's unmatched high-impact, result-driven event / media packages.
Feb. 13, 2016 10:00 AM EST Reads: 104
As enterprises work to take advantage of Big Data technologies, they frequently become distracted by product-level decisions. In most new Big Data builds this approach is completely counter-productive: it presupposes tools that may not be a fit for development teams, forces IT to take on the burden of evaluating and maintaining unfamiliar technology, and represents a major up-front expense. In his session at @BigDataExpo at @ThingsExpo, Andrew Warfield, CTO and Co-Founder of Coho Data, will dis...
Feb. 13, 2016 09:45 AM EST Reads: 234
Silver Spring Networks, Inc. (NYSE: SSNI) extended its Internet of Things technology platform with performance enhancements to Gen5 – its fifth generation critical infrastructure networking platform. Already delivering nearly 23 million devices on five continents as one of the leading networking providers in the market, Silver Spring announced it is doubling the maximum speed of its Gen5 network to up to 2.4 Mbps, increasing computational performance by 10x, supporting simultaneous mesh communic...
Feb. 13, 2016 05:00 AM EST
Eighty percent of a data scientist’s time is spent gathering and cleaning up data, and 80% of all data is unstructured and almost never analyzed. Cognitive computing, in combination with Big Data, is changing the equation by creating data reservoirs and using natural language processing to enable analysis of unstructured data sources. This is impacting every aspect of the analytics profession from how data is mined (and by whom) to how it is delivered. This is not some futuristic vision: it's ha...
Feb. 13, 2016 04:45 AM EST Reads: 475
The cloud promises new levels of agility and cost-savings for Big Data, data warehousing and analytics. But it’s challenging to understand all the options – from IaaS and PaaS to newer services like HaaS (Hadoop as a Service) and BDaaS (Big Data as a Service). In her session at @BigDataExpo at @ThingsExpo, Hannah Smalltree, a director at Cazena, will provide an educational overview of emerging “as-a-service” options for Big Data in the cloud. This is critical background for IT and data profes...
Feb. 13, 2016 03:45 AM EST Reads: 256
With the Apple Watch making its way onto wrists all over the world, it’s only a matter of time before it becomes a staple in the workplace. In fact, Forrester reported that 68 percent of technology and business decision-makers characterize wearables as a top priority for 2015. Recognizing their business value early on, FinancialForce.com was the first to bring ERP to wearables, helping streamline communication across front and back office functions. In his session at @ThingsExpo, Kevin Roberts...
Feb. 12, 2016 12:45 AM EST Reads: 430