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How has SDN evolved over time?
Has SDN run its course, or has the architecture simply evolved? In many current products, data centers and cloud environments, SDN may be closer than you think.
News
Next-generation wireless Wi-Fi 6 gets certified
The Wi-Fi 6 wireless standard is now ready for deployment, thanks to the debut of a certification effort that helps guarantee interoperability.
Get Started
Take a practice quiz from the new CCNA 200-301 guide
This practice quiz provides a sneak peek into the new 'CCNA 200-301 Official Cert Guide, Volume 1,' which reflects Cisco's CCNA certification and exam redesigns.
Get Started
Read a chapter from the new 'CCNA Official Cert Guide'
Here's a sneak peek at what to expect from Cisco's redesigned CCNA exam directly from 'CCNA 200-301 Official Cert Guide, Volume 1' by author Wendell Odom.
Your Free CCNA Certification Prep Guide
Achieving your CCNA certification requires a true in-depth understanding of network fundamentals and network security technologies, so it’s important to stay on track with your studies. Download this exclusive prep guide to gain a clear understanding of the CCNA exam today and take a 10-question practice quiz to help you determine if you’re ready for your certification.
Trending Topics
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Data Center Network Infrastructure Evaluate
How SDN benefits the small business
As SDN matures and evolves from its original definition, it's getting harder for small businesses to ignore the benefits of SDN, like better visibility, security and efficiency.
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Wireless LAN Implementation News
Consumers see no immediate need for 5G
A PwC 5G survey finds service providers will have to educate consumers and build unique services if they expect potential buyers to pay more for the high-speed wireless technology.
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Network Security Best Practices and Products News
Multiple connections thwart security on SD-WANs
Networking analysts and engineers examine SD-WAN security concerns, the importance of cabling in wireless environments and a new security attack that's difficult to detect.
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Network analytics News
VMware to improve network visibility with Veriflow buy
The VMware acquisition of Veriflow is expected to help vRealize users determine the integrity of a network design before it goes into production.
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Network Design Evaluate
What is SD-WAN? Future, challenges, benefits of SD-WAN technology
What is SD-WAN and how can it change the way networks operate? Discover its advantages, challenges, important key terms and where the future of SD-WAN could take you.
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Network Monitoring News
Study: Network pros spending more time on security
A majority of networking professionals spend 10 or more hours a week on security initiatives, a study finds.
Topics Covered
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Campus area network (1) +
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Data Center Networking (3) +
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Network Infrastructure (7) +
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Network management and monitoring (2) +
Network Security
Networking careers and certifications
Software-defined networking
Telecommunication networking
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WAN technologies and services (3) +
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Sean Michael Kerner asks:
How are you considering using Wi-Fi Certified 6 to improve wireless connectivity?
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Find Solutions For Your Project
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Evaluate
How has SDN evolved over time?
Has SDN run its course, or has the architecture simply evolved? In many current products, data centers and cloud environments, SDN may be closer than you think.
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Find out about the new CCNA syllabus and guides
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F5 Networks updates NGINX Application Platform
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The quest for end-to-end network visibility
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Problem Solve
What network brownouts could cost you annually
Network brownouts could be the biggest under-the-radar threats to your network. Stay aware of this performance issue to save your organization's productivity and money.
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Understanding why IPv6 renumbering problems occur
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Enhance your network security with SD-WAN
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NFV and SDN: What's the difference?
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Manage
Prepare a migration strategy for Wi-Fi 6
In order to glean the benefits of Wi-Fi 6, enterprises first need to determine the best steps for a migration strategy. Two key steps are implementing more power and faster uplinks.
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Shift career gears with the right networking skills
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TravelTab fine-tunes its Wi-Fi network with AI
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Analysts discuss challenges for enterprise networking
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E-Handbook | August 2019
Better security through software-defined perimeter know-how
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Buyer's Handbook | July 2019
Sizing up network edge switch offerings for a campus LAN
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Buyer's Handbook | June 2019
Navigating the network analytics software buying process
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E-Handbook | April 2019
New options to enable remote access in the network
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E-Handbook | April 2019
What you need to know about edge computing architecture
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Networking Basics
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Get Started
Take a practice quiz from the new CCNA 200-301 guide
This practice quiz provides a sneak peek into the new 'CCNA 200-301 Official Cert Guide, Volume 1,' which reflects Cisco's CCNA certification and exam redesigns.
-
Get Started
Read a chapter from the new 'CCNA Official Cert Guide'
Here's a sneak peek at what to expect from Cisco's redesigned CCNA exam directly from 'CCNA 200-301 Official Cert Guide, Volume 1' by author Wendell Odom.
-
Get Started
UDP (User Datagram Protocol)
UDP (User Datagram Protocol) is an alternative communications protocol to Transmission Control Protocol (TCP) used primarily for establishing low-latency and loss-tolerating connections between applications on the internet.
Vendor Resources
- The Benefits of a Software Defined Secure Branch with Versa Networks –White Paper
- What is Private IP? –White Paper
- How Geography is Messing With Your Cloud Strategy –Webcast
Blog: The Network Hub
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5 questions to ask about open data centers
Editor's note: In this opinion piece, industry analyst Zeus Kerravala shares his thoughts on open data centers and Extreme Networks' approach. Extreme Networks is a client of Kerravala's ZK ...Continue Reading
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Expect slow adoption of 400 Gigabit Ethernet, for now
Editor's note: In this opinion piece, industry analyst Zeus Kerravala shares his thoughts on 400 Gigabit Ethernet adoption and Arista Networks' 400 GbE approach. Arista is a client of Kerravala's ...Continue Reading
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More The Network Hub Posts
Merging wired and wireless networks spawns valuable analytics
Palo Alto Networks adds cloud analytics with RedLock acquisition
Cisco to acquire Viptela
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News
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Wireless LAN (WLAN)
Next-generation wireless Wi-Fi 6 gets certified
The Wi-Fi 6 wireless standard is now ready for deployment, thanks to the debut of a certification effort that helps guarantee interoperability.
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Campus area network
Arista Networks improves network visibility
Arista Networks upgraded its network monitoring and management platform with new features that help automate and improve change management as well as visibility.
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Telecommunication networking
Cisco prepares for carrier network overhaul
Cisco acquisitions in 2019 and 2018 include three that show the company preparing for when carriers will increase spending to ready networks for next-generation business services.