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

Cool Network Vendors 2017

by Andrew Lerner  |  April 18, 2017

Every year, we publish Cool Vendors in Enterprise Networking to highlight lesser-known vendors doing cool things in the networking market. Coolness is certainly subjective, and my wife (or anyone who knew me in high school) would argue that I am no authority on the topic, but for me coolness is the ability to solve challenges in an […]

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Smart Money

by Andrew Lerner  |  April 10, 2017

This is a guest blog from Joe Skorupa. I’m fortunate enough to work with a number of exciting startup clients. While we spend a good deal of time on product and go to market strategy, we often also discuss and assist with raising venture capital. Some teams just care about the valuation and dilution. They […]

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Uncool Networking Vendors

by Andrew Lerner  |  April 1, 2017

This year I’m excited to announce that the Gartner networking research team will be piloting a new type of research. While you may be familiar with our Cool Vendors series of research, we’ve decided to try something new this year focusing on Uncool Vendors. Luckily, enterprise networking is one of the areas where we are piloting this […]

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Microsegmentation

by Andrew Lerner  |  March 21, 2017

Microsegmentation is a hot topic, and is one of the top-three inquiry subjects for Gartner clients regarding cloud security. I’m not a security analyst, but microsegmentation comes up quite a bit on my client calls, probably because many folks are looking at Cisco ACI and/or VMware NSX (and it has driven at least 50% of the […]

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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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