Evaluate
Weigh the pros and cons of technologies, products and projects you are considering.
Evaluate
Weigh the pros and cons of technologies, products and projects you are considering.
SDN essentials: Why network orchestration and virtualization?
The goal of SDN is dynamic networks, so it's crucial to understand the concepts of network orchestration and virtualization -- the keys to flexibility. Continue Reading
SDN basics: Understanding centralized control and programmability
Network engineers who want to learn about SDN basics must begin with the concepts of centralized control and network programmability. Continue Reading
How SDN and NFV simplify network service chain provisioning
SDN and NFV simplify service chain provisioning, making it easier and cheaper to spin up applications in enterprise and service provider networks. Continue Reading
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Network programming languages Frenetic and Pyretic simplify OpenFlow
OpenFlow can simplify networks, yet the protocol itself is complex. Network programming languages Frenetic and Pyretic streamline OpenFlow SDN. Continue Reading
Wireless security options don't have to break the bank
Security expert Michele Chubirka shares low-cost and free options available to help your company guard its wireless LANs against threats. Continue Reading
How many devices can one 802.11n standard access point control?
Expert Mike Jude reveals the technical and theoretical limitations of 802.11n access points as more enterprises upgrade to the new standard.Continue Reading
Your next job may be 'network programmer': What you'll need to know
SDN brings flexibility to networking, but this will require engineers to gain new skills in order to fill the emerging role of network programmer.Continue Reading
Red Hat CloudForms promises management, federation for OpenStack clouds
Red Hat unveils Red Hat CloudForms 3.0 and welcomes cloud providers to its OpenStack Cloud Infrastructure Partner Program.Continue Reading
Getting cloud capacity planning right in the face of oncoming growth
Cloud capacity planning requires accurate knowledge of a cloud provider's existing infrastructure, future plans and the growth plans of its customers.Continue Reading
Overcoming network functions virtualization implementation challenges
Carriers need network functions virtualization implementation prespecification, so they'll look to TM Forum and cloud management models for help.Continue Reading
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Where SDN and DPI technology meet: Centralized control and automation
When SDN and DPI technology meet, network engineers can apply monitoring and management policy to the whole network instead of individual components.Continue Reading
IETF SDN: I2RS uses traditional routing protocols in software networks
The IETF SDN strategy relies on centralized management and distributed decision making with traditional network protocols -- departing from OpenFlow.Continue Reading
Virtual overlay networks: Tunneling protocols enable multi-tenancy
Virtual overlay networks use tunneling protocols to extend isolated network segments between servers for multi-tenant data center networks.Continue Reading
IT service-level agreements and SDN: Assuring virtualization performance
With SDN with network virtualization, service providers can improve server virtualization performance and offer improved service-level agreements.Continue Reading
IPv6 cost considerations
Before you make the switch to the new Internet Protcol, it's important to understand these IPv6 cost considerations.Continue Reading
SDN security strategies for network attack prevention
With a deeper level of visibility and granular control, SDN security strategies can better prevent a wide range of network attacks.Continue Reading
Traffic analytics in the new IT landscape: NetFlow vs. sFlow
Traffic monitoring and analytics are imperative today for network hardware. But Is NetFlow or sFlow better for you?Continue Reading
Understanding the relationship between SDN and NFV
SDN and NFV are not part and parcel to each other, but when the two sets of technology meet they advance each other's capabilities.Continue Reading
In mobile networks, SDN and NFV mean service orchestration
In mobile networks today, it can take months to deploy infrastructure and services, but SDN and NFV allow for orchestration and dynamic provisioning.Continue Reading
How network functions virtualization will revolutionize architecture
Using NFV, engineers can virtualize devices and services in large networks to make their architectures cost efficient and flexible.Continue Reading
How to make Network as a Service a real option
Networking as a Service may be the future of networking, but virtual network overlay and device-based NaaS has challenges to solve first.Continue Reading
OpenFlow configuration protocols: Understanding OF-Config and OVSDB
OpenFlow directs network packet flows, but OpenFlow configuration protocols, OF-Config and OVSDB, form relationships between controllers and switches.Continue Reading
Network security assessment: Test firewalls, IDS in multiple ways
Network administrators need to test internal systems such as firewalls and IPS/IDS devices to ensure their networks are safe.Continue Reading
Network security assessment: 10 tools you can't live without
The top 10 tools to protect your network against security breaches.Continue Reading
How data center network fabric and SDN intersect
SDN and data center network fabrics both enable converged networking and the ability to manage many switches as one. Where do the two intersect?Continue Reading
Five ways applications benefit from enterprise WAN optimization
These are five ways enterprise WAN optimization technology helps overcome productivity and application issues organizations face in today's workforce.Continue Reading
Application performance monitoring tools: Three vendor strategies
Application performance monitoring tools match user transaction time to network flow information to identify problems. But APM tools differ widely.Continue Reading
software-defined networking monitoring application (SDN monitoring application)
An SDN monitoring application is a software program that oversees the traffic in a software-defined network (SDN) as a component of network management.Continue Reading
Centralized vs. decentralized SDN architecture: Which works for you?
Two SDN architecture models -- centralized and decentralized -- have much in common, but key differences center on the use of the OpenFlow protocol.Continue Reading
SDN application (software-defined networking application)
An SDN application is a software program designed to perform a task in a software-defined networking (SDN) environment. SDN applications can replace and expand upon functions that are implemented through firmware in hardware devices in a ...Continue Reading
Network functions virtualization primer: Software devices take over
With network functions virtualization (NFV), engineers replace network devices with software on basic servers for flexibility and cost reduction.Continue Reading
Software defined networking security enables granular policy control
Software defined networking introduces network programmability and granular traffic management, which could contribute to enhanced SDN security.Continue Reading
application-aware networking (app-ware networking)
Application-aware networking is the capacity of an intelligent network to maintain current information about applications that connect to it and, as a result, optimize their functioning as well as that of other applications or systems that they ...Continue Reading
Evaluating business and technology needs for a robust enterprise WLAN
It is crucial to assess business and technology issues driving the need for a robust and capable enterprise WLAN to support a new mobile workforce.Continue Reading
Evaluating wireless LAN requirements: What to consider before buying
When considering a WLAN solution for your enterprise, you'll have to start by assessing the wireless LAN requirements necessary.Continue Reading
Ten questions to ask WLAN vendors when evaluating WLAN solutions
Once IT professionals have developed a mobility plan, it is crucial to address particular questions with WLAN vendors when assessing WLAN solutions.Continue Reading
How do I disable VPN passthrough? What are the pros and cons to disabling it?
In this Ask the Expert response, Rainer Enders explains how to disable VPN passthrough and what the benefits and drawbacks are.Continue Reading
How do I...choose a VPN for my small business?
A virtual private network (VPN)is a way to use a public telecommunication infrastructure, such as the Internet,to provide remote offices or individual users with secure access to their organization's network.Continue Reading
Choosing the right flavor of 802.1X
Which of the nearly 50 defined EAP Types would work best in your WLAN? In this tip, we compare the most popular EAP Types used with 802.1X, authentication methods that can be supported by each, known vulnerabilities and suitable usage environments.Continue Reading
Wi-Fi vulnerability assessment checklist
Vulnerability assessments can help you find and fix WLAN weaknesses before attackers take advantage of them. But where do you start? What should you look for? Have you covered all the bases? This checklist will help to answer these questions.Continue Reading
What's the difference between a network assessment and an audit?
The network administrator's survival guide
This piece from contributor Douglas Chick presents a humorous look at surviving in your role as a network administrator.Continue Reading
Design, install and evaluate
Network administrator tips for designing, installing and evaluating your network.Continue Reading
I need a very basic VPN solution to connect two offices to allow two servers to talk to one another.
Most popular viruses and hacking tools
Here are 2004's most popular hacker tools, viruses, remote tools, adware, spyware, Trojans and worms.Continue Reading
How do I evaluate the performance of a LAN setup?
What are the top five companies that are providing enterprise level WLAN products and solutions?