Networking

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IP addresses [IPv4, IPv6] identify laptop computers as a team meets.

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Weekly internet health check, US and worldwide

ThousandEyes, which tracks internet and cloud traffic, provides Network World with weekly updates on the performance of three categories of service provider: ISP, cloud provider, UCaaS.

hybrid clouds

Cisco: Enterprises grapple with hybrid-cloud security, operational complexity

Greater collaboration between networking and cloud teams can increase security, efficiency, and cloud application performance, according to a report from Cisco and 451 Research.

networking model

What is a VLAN and how does it work?

Virtual LAN (VLAN) technology enables network architects to segment physical devices into logical subgroups for performance and security reasons

abstract wireless communication network

What is Wi-Fi 6 (802.11ax), and why do we need it?

Wi-Fi 6 is the latest wireless standard that is designed for dense deployments like stadiums and offices, but an even faster standard, Wi-Fi 6E, is enabling emerging technologies like virtual reality and 4K/8K video

Exium expands SASE, 5G-based security for midsize enterprise networks

The on-premises module offers new capabilities, based on 5G standards, for midsize businesses.

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SASE or SSE? Don’t let hype distract from enterprise needs

Not every vendor can deliver full SASE, and that's OK. Not every enterprise wants, needs or can implement it.

network / data center

What is Nmap and why do you need it on your network?

While there are many monitoring tools available to network administrators for port scanning and network mapping, Nmap is the de facto standard. Here's why.

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Cisco's $15B backlog: China COVID worries, impact of war in Ukraine

On Cisco's news of flat Q3 revenue the company and competitors Juniper, Arista and others take a stock hit.

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Suprise! The internet of things doesn’t necessarily include the internet

Connected devices need a safe, reliable network of things (NoT) that ties them together, but that glue is likely IoT-specific protocols, not the internet.

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What is a private cloud?

Private clouds offer a safe haven for applications and data not suited to the public cloud for compliance, regulatory, security or other reasons.

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Nokia launches SaaS services to tackle energy consumption and home device management

Nokia has launched two new software-as-a-service products to help customers improve their energy efficiency and manage smart devices.

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Intel details IPU roadmap to free up CPUs

Intel unveiled plans for its next-gen infrastructure processing units (IPU) at its inaugural Intel Vision event.

functional

How to deal with network-operations brain drain

If you can’t find qualified candidates for NetOps jobs, automate what you can, and hire someone smart and willing to learn who can train for the job you need filled.

Data center / enterprise networking

4 networking best practices learned from the Atlassian network outage

Software vendor posts detailed analysis of what went wrong to help others avoid the same fate

A robotic hand activates/manages a network of integrated security.

The case for declarative network automation

Some network teams are finding power and simplicity in the shift from telling devices what to do—imperative programming—to describing what they should be—declarative programming.

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Cisco preps technology to predict enterprise-network problems

Cisco says it's developed a predictive engine that analyzes switch and router telemetry to reduce unplanned downtime and outages.

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Cisco urges software update to thwart counterfeit switches

Semiconductor material shortages and other supply chain disruptions are contributing to a spike in counterfeit IT gear, Cisco warns.

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Arista CEO details supply chain woes, mulls price hike

Arista reports a record quarter for revenues despite a giant backlog caused by parts suppliers backing out at the last minute.

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