Gartner Blog Network

Andrew Lerner
Research Vice President
4 years at Gartner
19 years IT Industry

Andrew Lerner is a Vice President in Gartner Research. He covers enterprise networking, including data center, campus and WAN with a focus on emerging technologies (SDN, SD-WAN, and Intent-based networking). Read Full Bio

Collective Intelligence Benchmarking

by Andrew Lerner  |  January 20, 2017

Traditional monitoring tools often struggle to correlate the myriad of datasets resulting from increasingly distributed applications and services beyond the control of enterprise IT, and this will only get harder… To that end, Collective intelligence benchmarking (CIB) is an emerging and increasingly popular approach being adopted by monitoring tool vendors to ascertain a baseline of […]

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Networking Challenges in a Galaxy Far, Far Away…

by Andrew Lerner  |  January 11, 2017

This is a Guest Blog from Sanjit Ganguli While watching Rogue One over the holidays with my kids, I was left wondering about a glaring oddity in the Star Wars universe. If the human race in the Star Wars universe has accomplished so many amazing technological feats, why are network communications so poor? I’m sure […]

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Network Resolutions for 2017

by Andrew Lerner  |  December 20, 2016

It is the time of year for New Years’ resolutions, and consequently network resolutions if you’re responsible for an enterprise network. In a nutshell, here are some recommendations (side note:  no vendor names or mega-hyped networking buzzword technologies like SDWAN, SDN, or Intent…). Automation – the state of network automation is quite unfortunate. Multiple surveys […]

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Rethinking Network Downtime

by Andrew Lerner  |  December 16, 2016

Network downtime is a hot topic, especially with the recent headlines including Southwest and Peak Web, and as many organizations transition to digital business models. Along these lines, we’ve just updated our written guidance regarding how to reduce network downtime. Overall, we make six specific recommendations in the research, which comprise a mix of modern antifragile […]

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Avoiding Network Incrementalism

by Andrew Lerner  |  December 5, 2016

As organizations transform towards digital business models, many enterprise networks lack the agility their businesses need. This leads to frustration, slows time-to-market, and drives shadow IT. Often, this is due to the fact that many network organizations are hamstrung by a strong culture of risk aversion and the corresponding preference for “safe,” short-term\incremental changes. Unfortunately, […]

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Making networks more “Googley”

by Andrew Lerner  |  November 29, 2016

We all know that the hyperscale companies like Google, Amazon and Facebook operate very differently from traditional IT shops. The general consensus is that 99% of what they do has no applicability in the mainstream due to a) their scale, b) their people/talent and/or c) their corporate appetite to drive technology innovation. However, as we’ve […]

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Predicting the Death of the CLI

by Andrew Lerner  |  November 22, 2016

Every year around December, we publish Enterprise Networking predictions. This year, we have five predictions including: By 2020, only 30% of network operations teams will use the command line interface (CLI) as their primary interface, down from 85% at YE16. The CLI has remained the primary operational tool for mainstream network operations teams for easily […]

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Gartner Data Center Infrastructure & Operations Management Conference

by Andrew Lerner  |  November 19, 2016

In just a few weeks, we will be having our annual Gartner Data Center Infrastructure & Operations Management Conference, in Vegas.  This is a fun conference if you’re a networking person, and this year we have a dedicated networking track with 16 sessions.  Just wanted to highlight a few of them…. The Enterprise Network Scenario: […]

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The Internet just got punched in the face

by Andrew Lerner  |  October 28, 2016

This is a guest blog from Bob Gill Every so often, an event occurs to remind us that the Internet is open to anyone (almost), owned and controlled by no one, and an invaluable resource that we have to assume will be something less than what we hope, when we least expect it. What happened? […]

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Networking VendorMath

by Andrew Lerner  |  October 19, 2016

Vendormath…We’ve all seen it…it looks something like this… From the vendor’s perspective, it always shows that “our stuff” is sooo much better financially than “their stuff” (note: a slight deviation to this is when “their stuff” is 4% cheaper in year 1, but over X years, our stuff is much much more cost effective). While […]

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