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Router security options advised following U.S. hacker alert
A rare government alert that Russian hackers are targeting routers in the United States and the United Kingdom has security experts debating router security options.
More Highlights
- Analyst balks at blockchain distributed ledger in networking
Blockchain distributed ledger technology is untested, unproven and overly complex, making it unsuitable for networking, GlobalData analyst Mike Fratto argued.
- Network-as-a-service market blossoms as demands grow
The network-as-a-service market is attracting more attention, as enterprises look for ways to outsource some of their infrastructure needs to providers.
- Blockchain technology use in networking? Not so fast
Blockchain technology use has little value in networking, according to one IT analyst. Analysts also examine IoT security and what might happen to AI if disasters occur.
Definitions
- OSI model (Open Systems Interconnection)
OSI (Open Systems Interconnection) is a reference model for how applications communicate over a network.
- presentation layer
Residing at Layer 6 of the Open Systems Interconnection (OSI) communications model, the presentation layer ensures that the communications that pass through it are in the appropriate form for the recipient application.
- 5G
Fifth-generation wireless, or 5G, is the latest iteration of cellular technology, engineered to greatly increase the speed and responsiveness of wireless networks.
Browse Networking Topics
Data Center
Learn about data center networking considerations, including evolving data center network architectures and components, emerging data center network protocols and standards, and converged data center and storage networks.
Recent Definitions
- network orchestration
Network orchestration is a policy-driven approach to network automation that coordinates the hardware and software components a software application or service requires to run.
- application delivery controller (ADC)
An application delivery controller (ADC) is a network component that manages and optimizes how client machines connect to web and enterprise application servers.
- Facebook Live
Facebook Live is a feature for live broadcast of user videos from the Facebook mobile app.
Highlights
- Pay as you go with new Cisco Tetration analytics SaaS
- Meta Networks NaaS offers SD-WAN, VPN, cloud connectivity
- Networking elements of a digital transformation framework
More Data Center Topics
- Application Acceleration and Server Load Balancing
- Cloud Computing Architecture
- Cloud Networking
- Data Center Ethernet
- Data Center Network Infrastructure
- Green Data Center Design
- Storage Networks
Administration
Find general information and resources for network administration, including local area network (LAN) administration and Windows and Linux networking. Learn about the OSI Model and Cisco certifications as well as general career information and case studies. You'll also find our library of networking book chapter excerpts and tutorials on various networking topics.
Recent Definitions
- OSI model (Open Systems Interconnection)
OSI (Open Systems Interconnection) is a reference model for how applications communicate over a network.
- presentation layer
Residing at Layer 6 of the Open Systems Interconnection (OSI) communications model, the presentation layer ensures that the communications that pass through it are in the appropriate form for the recipient application.
- Application layer
Sitting at Layer 7 -- the very top of the Open Systems Interconnection (OSI) communications model -- the application layer provides services for an application program to ensure that effective communication with another application program on a network is possible.
Highlights
- Wireless networking technology helps craft IT modernization
- How to address automated networking strategically
- Automated networks mean clearing some key hurdles first
More Administration Topics
- Network Administration
- Network Conference and IT Conference News
- Networking Book Excerpts
- Networking Certs and Careers
- Networking Tutorials and Technical Guides
- The OSI Model
- Working With Servers and Desktops
Infrastructure
Advancements in enterprise hardware and network protocols are allowing network pros to take advantage of new technologies to design and implement logical and physical LANs that contribute to business success. In our network infrastructure section, find out what you need to know to design your enterprise local area network infrastructure, including 10/100/100 Ethernet and switching technology, green networking initiatives, PoE, VLANs, and information on IP addressing, subnetting, TCP/IP and network routing protocols.
Recent Definitions
- OSI model (Open Systems Interconnection)
OSI (Open Systems Interconnection) is a reference model for how applications communicate over a network.
- presentation layer
Residing at Layer 6 of the Open Systems Interconnection (OSI) communications model, the presentation layer ensures that the communications that pass through it are in the appropriate form for the recipient application.
- 5G
Fifth-generation wireless, or 5G, is the latest iteration of cellular technology, engineered to greatly increase the speed and responsiveness of wireless networks.
Highlights
- Analyst balks at blockchain distributed ledger in networking
- Network-as-a-service market blossoms as demands grow
- Cisco DNA Center gets access to more IoT devices
More Infrastructure Topics
Back to TopNetwork Mgmt
Our network management resources provide you with information on end-to-end network performance, network monitoring, configuration management and applications management. You'll find advice on how to select the best network management software and how to integrate management tools with your network environment.
Recent Definitions
- fault management
Fault management is the component of network management concerned with detecting, isolating and resolving problems.
- network configuration management (NCM)
Network configuration management is the process of organizing and maintaining information about all the components of a computer network.
- managed network services
Managed network services are networking applications, functions and services that enterprises outsource to be remotely operated, monitored and maintained by a managed service provider (MSP).
Highlights
- Analyst balks at blockchain distributed ledger in networking
- Blockchain technology use in networking? Not so fast
- Cisco DNA Center gets access to more IoT devices
More Network Mgmt Topics
- Enterprise Energy Management
- Network Management Software, Tools and Utilities
- Network Monitoring
- Network Performance Management
- Network Security Monitoring
Network Security
Here you'll find network security resources for selecting and implementing security devices and maintaining secure networks. Find out how to design a secure network perimeter, where to locate a firewall and whether you need network access control.
Recent Definitions
- firewall
In computing, a firewall is software or firmware that enforces a set of rules about what data packets will be allowed to enter or leave a network.
- VMware AppDefense
VMware AppDefense is a data center security service designed to protect virtualized applications running in an enterprise data center in order to improve the protection and threat response performance of an enterprise security operations center (SOC).
- deep packet inspection (DPI)
Deep packet inspection (DPI) is an advanced method of examining and managing network traffic.
Highlights
- Router security options advised following U.S. hacker alert
- Gordon: Trends driving network access control systems
- Russian hackers target opening in Cisco switch security
More Network Security Topics
- Desktop Networking Security
- Mobile Device Compliance
- Mobile Network Security
- Network Access Control
- Network Security Best Practices and Products
- Network Security Monitoring and Analysis
- Wireless Network Security
Virtualization
Virtualization is becoming less a buzzword and more just the way things are done, so networking professionals must be aware of the challenges (and benefits) virtualization presents for network configuration, performance and management. Get up to speed on the various types of virtualization such as server virtualization and storage virtualization; find out virtualization's effects on network performance. Find out how to transition to a virtualized environment and the best tools for managing network relationships between VMs and between virtual and physical devices in this section.
Recent Definitions
- Virtual network functions (VNF)
Virtual network functions (VNFs) are virtualized tasks formerly carried out by proprietary, dedicated hardware.
- network functions virtualization (NFV)
Network functions virtualization (NFV) is an initiative to virtualize network services traditionally run on proprietary, dedicated hardware.
- logical unit number (LUN)
A logical unit number (LUN) identifies one or more physical or virtual storage devices to a SCSI initiator in a host server to enable data exchange.
Highlights
- SDN marketplace sows confusion on network infrastructure upgrades
- What are the top information security objectives for CISOs?
- Interest in 5G wireless networks ramps up
More Virtualization Topics
- Emerging Virtualization Technologies
- High Performance Computing
- Managing Virtualization
- Network Virtualization Implementation
- Networking for Mobile Desktop Virtualization
- Networking for VMware Infrastructures
- Server Virtualization Networking
- Storage Virtualization
- Virtualizing Networks
WLANs
Wireless networking technology is ever-increasing in enterprise IT infrastructure. For information on what products you need to set up a wireless local area network (WLAN), navigate this WLAN section to answer your questions on wireless security encryption, equipment implementation, and wireless protocols and standards (like 802.11n). We also cover wireless network management tools that aid you in troubleshooting Wi-Fi problems.
Recent Definitions
- 5G
Fifth-generation wireless, or 5G, is the latest iteration of cellular technology, engineered to greatly increase the speed and responsiveness of wireless networks.
- RFID (radio frequency identification)
RFID (radio frequency identification) is a form of wireless communication that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency portion of the electromagnetic spectrum to uniquely identify an object, animal or person.
- spectrum analyzer
A spectrum analyzer is a device that displays signal amplitude (strength) as it varies by signal frequency.
Highlights
- Despite WLAN speed growth, do we really need mGig?
- Wireless networking technology helps craft IT modernization
- Wireless networking technology helps craft IT modernization