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

Help, I hate my (Traditional) Network Carrier

by Andrew Lerner  |  February 23, 2017

Gartner analysts have conducted over 3,500 WAN-related client inquiries, and reviewed more than 500 service provider contracts in the past year and one thing is crystal clear: Enterprises are dissatisfied with large incumbent network service providers. However, there are other choices and organizations should cast a wider net to look at offers from alternative providers. […]

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NetOps 2.0

by Andrew Lerner  |  February 16, 2017

In Networking, we’re all sick of hearing it… it generally goes something like this:  “The network is the long pole in the tent, I can spin up VMs or go to the public cloud in minutes, but it takes days/weeks to get the network (i.e., VLANs/ACLs/Firewalls) configured”. While easy to complain, this is a difficult […]

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Intent-based Networking

by Andrew Lerner  |  February 7, 2017

There’s always a “next big thing” in networking…. Five years ago, it was Ethernet Fabrics in the data center, then came SDN, and currently it is SD-WAN.  As SD-WAN adoption grows and shifts from bleeding to leading edge, the next big thing on the networking horizon promises to be …. wait for it … Intent-based […]

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Network VendorSpeak 1.1

by Andrew Lerner  |  January 31, 2017

Network VendorSpeak is one of those things we as networking folks have to deal with.  It isn’t fun, but that doesn’t mean we can’t have fun with it.  Fifteen months back, I blogged 25 examples, and here’s another 10 (actually 11… because you should always give 110%). Vendors Says… ——-> What the vendor actually means… “Business […]

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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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