VIRTUAL Stories
Dell’Oro Group revises Open RAN and vRAN forecast upward
Published on: 2022-07-27
Dell’Oro Group has revised its forecast for near-term Open RAN and virtualized RAN (vRAN) projections upward. According to the firm’s Vice President and Analyst Stefan Pongratz, the increased forecast reflects the market’s higher starting point and improved momentum. Pongratz predicted that Open...
Upgrading cell towers could save enough energy to power entire cities
Published on: 2022-07-27
Upgrading to more efficient cellular radio towers could save enough electricity to power cities such as Phoenix, New Orleans or Seattle, according to a new study produced by US research firm J. Gold Associates. Annually, US cell sites use a total of almost 21 million megawatt hours (MWh) of...
Zero-trust and network security: friend or foe?
Published on: 2022-07-25
Mobile working and cloud-hosted applications have made a tremendous impact on the security architecture of enterprise networks. Mobility means that users connect from anywhere over untrusted public networks. IT teams address this exposure with secure VPN technologies. But an increasing number of...
Google Cloud launches Media CDN based on YouTube’s network
Published on: 2022-04-26
Google Cloud has launched a new media and content delivery network (CDN) platform called Media CDN that allows large media and streaming customers to tap into Google’s global YouTube network. The new platform blends the same infrastructure as the Google-owned video streaming service, with Google...
5G is important to cloud computing (but not that important)
Published on: 2022-04-26
We’ve talked about 5G for so long that we’re overdue to finally see its benefits. Like many of you, I’ve owned a “5G-ready” phone for the last year. I even make sure to consistently check my phone for a true 5G connection. I often do 5G talks and even teach courses about what we can expect from...
MPLS, SDN, even SD-WAN can give you the network observability you need
Published on: 2022-04-25
What do router networks and a preschool have in common? A lot more than you think. Read on for the answer. To the average enterprise, “network” means “router network”. It’s not that there aren’t other things in the network, but that the whole of enterprise networking is about building IP...
Basing network security on IP addressing: Would it be worth it?
Published on: 2022-04-20
Why is it that over 90% of enterprises tell me that they expect to spend more on security over the next three years, and almost 60% say they expect to spend less on networking? We obviously think that network technology is getting more efficient, more competitive. Why isn’t that the case for...
Do new technologies make IT easier?
Published on: 2022-02-07
Software-defined networking, intent-based networking, SD-WAN, and a host of other technologies are focused on making IT work easier through automation. Rather than manually configuring every part of a system, these technologies offer templates, AI assistance, and, in theory, a much lower...
Governance in the public cloud
Published on: 2022-07-25
Questions about governance are frequently asked by users who are new to the public cloud. Before focusing on the public cloud environment, which is a bit different from enterprise (on premises) environments, let’s discuss governance. If you have ever worked as part of a management team in an...
Modifying Maximum Throughput of Catalyst8000v
Published on: 2022-07-05
The Catalyst8000v is Cisco’s virtual version of the Catalyst 8000 platform. It is the go to platform and a replacement of previous products such as CSR1000v, vEdge cloud, and ISRV. When installing a Catalyst8000v, it comes with a builtin shaper setting the maximum throughput to 10 Mbit/s as can...
PSA: Virtual Interfaces (in ESXi) Aren’t Limited To Reported Interface Speeds
Published on: 2021-11-28
There is an incorrect assumption that comes up from time to time, one that I shared for a while, is that VMware ESXi virtual NIC (vNIC) interfaces are limited to their “speed”. In my stand-alone ESXi 7.0 installation, I have two options for NICs: vxnet3 and e1000. The vmxnet3 interface shows up...
Kentik - Get Observability and Monitoring Under Control
Published on: 2021-10-04
Kentik presented at Networking Field Day 26 on Sept 15, 2021 and I think Kentik is on the right journey around doing observability and monitoring for enterprise networks. They understand they have to support all the traditional capabilities within networks but they also need to have full...
ZPE - A New Swiss Army Knife Networking Product
Published on: 2021-09-27
ZPE presented at Networking Field Day 26 on Sept 16, 2021 and I will be honest, at first I couldn't figure out where to put ZPE in terms of a product and service category. As they were a first time NFD presenter and I had not heard of them before I was asking myself, are they a remote console...
Arista - Open Source Network Automation and Tooling
Published on: 2021-09-23
Arista presented at Networking Field Day 26 on Sept 14, 2021 - I was most excited about the presentation that Fred Hsu gave regarding Arista's Next-Generation Automation Architectures.Having a vendor share how they see customers putting together a set of automation tools, frameworks and workflow...
Juniper - Mist API and Automation with Postman
Published on: 2021-09-20
Juniper presented at Networking Field Day 26 on Sept 14, 2021 - I really recommend you check out the presentation on network automation that Ryan and Jake did, you will likely learn something new if you are not staying super current on network automation and APIs. Even if you are staying...
Network Field Day 26 -
Published on: 2021-09-10
Excuse the bit of pre-ramble before the actual NFD26 content:It is a bit unusual to do back-to-back Network Field Day event, mainly because diversity in delegates is a good thing for the community and for the vendors presenting. It means a greater mix of opinions, use cases, and influence around...
Why Haven’t I Tried ZeroTier Before?
Published on: 2022-01-28
I have a confession to make: I am not currently using ZeroTier. It turns out that in this respect I am in a minority among my peers at Networking Field Day 27 and after listening to a great introduction to ZeroTier by company founder and original software author Adam Ierymenko, I now know that I...
Configure Umbrella virtual appliance
Published on: 2021-04-08
Cisco Umbrella is a Cloud driven Secure Internet Gateway that provides protection from Internet based threats, for users wherever they go. As a cloud-delivered service, Umbrella provides the visibility needed to protect internet access across all network devices, office locations, and roaming...
Introducing DNS Hammer, Part 1: DDoS Analysis – From DNS Reflection to Rate Limiting
Published on: 2021-01-19
This article discusses DNS reflection, a technique used in DDoS attacks. DNS rate limiting can be used as mitigation against DNS reflection attacks. This paves the way to our new tool DNS Hammer. The program can help auditing a DNS server’s rate limiting configuration. A dedicated web site...
Getting Started with the Rust Programming Language
Published on: 2020-01-02
A programming language that has begun picking up momentum in the community lately is Rust. This is a guide aimed at helping folks get started with the Rust Programming Language. Rust has been around for a while with a stable v1.0 shipping in 2015. Rust initially came from Mozilla who maintain...
Patch! Patch! Patch!
Published on: 2019-07-04
Bob Plankers, Technical Marketing Architect for vSphere at VMware, has a very simple but important message for all of us, and it isn’t really limited to VMware itself: “Patch! Patch! Patch! Did I say… patch?”. That was his starting message when I visited VMware during Security Field Day 2, and...
Configuring Macvlan and Ipvlan Linux Networking
Published on: 2016-03-28
Macvlan and Ipvlan are both Linux type networking interfaces that are both supported by the Linux kernel. They are unique for a few different reasons. One thing that makes them both very attractive is they do not use bridges in their implementation and natively namespace aware. It solves some...