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On Network Virtualization and SDN

Scott Lowe

Is there a difference between network virtualization and Software-Defined Networking (SDN)? So, in a similar fashion to my post on network overlays vs. network virtualization , I thought I’d weigh in with some thoughts. To compare network virtualization to SDN, we must first define SDN.

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How Zero Trust is supposed to look

CIO Business Intelligence

Over the last few years, it has become more and more apparent that the status quo for networking and security is no longer viable. Endlessly extending hub-and-spoke networks to more remote users, branch offices, and cloud apps increases risk, harms the user experience, and is prohibitively complex and expensive.

B2B 97
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Forget the FUD: VMware NSX and Cisco ACI SDN solutions

Virtualized Greek

There has been a good deal of FUD spread since VMware has announced their NSX network hypervisor based on software from their $1 billion Nicira acquisition. VMware is a large corporation but, $1 billion is a lot of money to any company and a big bet on network virtualization. This places VMware and Cisco on a collision course.

Vmware 91
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CES 2024: Here are the Washington state companies taking tech innovation to Las Vegas

GeekWire

AYL Tech The Sammamish-based company is parent to Happysite, a brand that offers tech-enabled and fashionable products such as LED-enhanced backpacks. Dr.Tail Photo) Dr.Tail Seattle-based Dr.Tail provides vet consultations and comprehensive medical record management via a virtual platform. Bluetooth SIG Kirkland, Wash.-based

Company 87
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Technology Short Take 133

Scott Lowe

Networking. Servers/Hardware. In the last Technology Short Take , I mentioned that some testing with macOS Big Sur indicated that Apple had left itself a backdoor for network traffic from its own applications. How did I not know about Network Time Security (NTS)? Virtualization. See this post for more details.

SMB 60
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Technology Short Take #81

Scott Lowe

Networking. Matt Oswalt has a great post on the need for networking professionals to learn basic scripting skills—something he (rightfully) distinguishes from programming as a full-time occupation. Further, he follows that up with a post on how automation is more than just configuration management ; it’s about network services.

Vmware 60
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Technology Short Take #83

Scott Lowe

Networking. I enjoyed Dave McCrory’s series on the future of the network (see part 1 , part 2 , part 3 , and part 4 —part 5 hadn’t gone live yet when I published this). Michael Kashin has a handy little tool that functions like ssh-copy-id on servers, but for network devices (leveraging Netmiko). Servers/Hardware.

Linux 60