Ask the Experts

Ask the Experts

• How to test packet loss on Windows, macOS and Linux

  Network admins should know how to identify and test for packet loss. Diagnosing this issue doesn't require specialized tools or expensive software, but these four tools can help.  Continue Reading

• Compare network management vs. network monitoring

  Network monitoring is a vital part of network management. Both are essential to help network operations teams streamline operations and address potential issues.  Continue Reading

• Network security management challenges and best practices

  A comprehensive and scalable network security management plan is more important than ever in the face of ever-rising threats and attacks orchestrated by bad actors.  Continue Reading

• 9 common network issues and how to fix them

  Slow network speeds, weak Wi-Fi signals and damaged cabling are just some of the most common network connection issues that IT departments need to troubleshoot.  Continue Reading

• Telemetry vs. SNMP: Which is better for network management?

  Now that networks have become more complex, network management has become a challenge of its own. Enterprises can compare telemetry vs. SNMP to see which better suits their needs.  Continue Reading

• Managed vs. unmanaged switches: What are the differences?

  Managed and unmanaged network switches differ in various ways, including control and cost. Managed switches support more granular control, while unmanaged switches are easier to set up.  Continue Reading

• Network automation vs. orchestration: What's the difference?

  Automation and orchestration take different approaches to achieve network efficiency. However, network engineers can use them together to create an efficient, centralized network.  Continue Reading

• Recursive vs. iterative DNS queries: What's the difference?

  Name resolution translates human-readable hostnames to IP addresses for device configuration. DNS uses recursive or iterative methods to translate names into IP addresses.  Continue Reading

• HTTP vs. HTTPS: What's the difference?

  HTTP and HTTPS are web communication protocols. HTTP lacks security, while HTTPS encrypts data to adhere to the security standards of confidentiality, integrity and authenticity.  Continue Reading

• An introduction to SFP ports on a Gigabit switch

  SFP ports enable Gigabit switches to connect to a variety of fiber and Ethernet cables and extend switching functionality throughout the network.  Continue Reading

• MAC address vs. IP address: What's the difference?

  A MAC address and an IP address each identify network devices, but they do the jobs at different levels. Explore the differences between the two and learn why both are necessary.  Continue Reading

• CASB vs. SASE: What's the difference?

  CASB and SASE enhance network and SaaS application security. CASB acts as a security layer for cloud services, while SASE integrates networking and security into one framework.  Continue Reading

• Wireshark vs. tcpdump: What's the difference?

  Wireshark and tcpdump both aid network administrators in packet analysis. Wireshark's simple GUI contrasts with tcpdump's speed and scripting abilities, which enhances management.  Continue Reading

• Cloud networking vs. cloud computing: What's the difference?

  Organizations might sometimes consider cloud computing and cloud networking as interchangeable due to their similarities. But the two strategies have different goals and processes.  Continue Reading

• SD-WAN vs. load balancing: How are they different?

  Load balancing is beneficial for network traffic distribution. SD-WAN can use load balancing for WAN connections, but it doesn't require load balancing to reap other benefits.  Continue Reading

• Cloud security vs. network security: What's the difference?

  While network security focuses on solely protecting networks, cloud security provides protection for networks, servers, containers, apps and more.  Continue Reading

• Classical internet vs. quantum internet: How do they differ?

  The quantum internet is a hypothetical secure network made of qubits. It differs from the classical internet with its use of quantum principles for enhanced security and computing.  Continue Reading

• Network simulation vs. emulation: What's the difference?

  Network engineers use simulation and emulation to test changes, which ensures reliable post-change performance. Network simulators create models, while emulators mimic networks.  Continue Reading

• SASE vs. NaaS: What's the difference?

  SASE and NaaS are network models with different goals. SASE combines SD-WAN with cloud-based security, while NaaS lets businesses outsource network management via a subscription model.  Continue Reading

• The status of the US 5G fixed wireless access market

  FWA's ability to deliver high-speed connectivity to rural areas has high revenue potential and has prompted U.S. MNOs AT&T, Verizon and T-Mobile to expand national deployment.  Continue Reading

• What are licensed and unlicensed wireless frequency bands?

  Licensed frequency bands are reliable and offer better performance than unlicensed frequency bands, which are low cost and easy to deploy but interference is common.  Continue Reading

• What to know about UDP vulnerabilities and security

  UDP is a simple protocol, but it has inherent vulnerabilities that make it prone to attacks, such as limited packet verification, IP spoofing and DDoS attacks.  Continue Reading

• What are 5G's killer applications?

  5G's killer applications have yet to be fully realized -- or defined -- but some potentials include higher capacity, improved connectivity, private 5G and more.  Continue Reading

• What's the difference between Wi-Fi and the internet?

  The internet connects users to the outside world. Wi-Fi connects devices within a business, which then connect to other network devices and out to the internet.  Continue Reading

• Networking vs. telecom: What's the difference?

  Networking describes how devices interconnect to share resources with each other. Telecom, which includes networking, broadly refers to the exchange of data across long distances.  Continue Reading

• Traditional networks vs. IoT networks: What's the difference?

  An enterprise network is a system of interconnected devices that share information, while IoT is a system of devices connected to the internet that provides key analytics.  Continue Reading

• 5 common network services and their functions

  DHCP, DNS, NTP, 802.1x, and CDP and LLDP are some of the most common services network administrators use to secure, troubleshoot and manage enterprise networks.  Continue Reading

• What are the advantages and disadvantages of CLI and GUI?

  An old-fashioned command-line interface still has some advantages over its counterpart, the graphical user interface, when managing network devices. See how CLI and GUI stack up.  Continue Reading

• In WAN evolution, is software-defined now implied?

  Networking trends and innovations, such as automation and network as a service, have started to ingrain software-defined principles into WAN environments.  Continue Reading

• What's the difference between network reliability and availability?

  Network reliability is how long infrastructure works without disruption. Network availability is the percentage of time infrastructure operates in a given time frame.  Continue Reading

• Traditional WAN vs. SD-WAN: How do they compare?

  While comparing traditional WAN vs. SD-WAN, network professionals can see the many benefits of SD-WAN, including centralized control and dynamic traffic management.  Continue Reading

• Beyond metrics, network SLAs should measure business ops

  Enterprises need to ensure network service-level agreements provide a comprehensive view of network service performance to support business operations.  Continue Reading

• NOC vs. data center: What's the difference?

  Network operations centers and data centers are two facilities organizations use to store IT devices and manage operations. But they differ significantly in terms of purpose and operations.  Continue Reading

• How to set up backup internet connections for home offices

  Reliable connectivity and secure access are must-haves for employees working from home. Here are ideas to consider when designing backup internet connections for home offices.  Continue Reading

• What is the difference between WLAN and Wi-Fi?

  Although the terms WLAN and Wi-Fi are used interchangeably, the two wireless technologies differ. Wireless LAN uses radio technology to connect nodes, while Wi-Fi is a type of WLAN.  Continue Reading

• IPv4 vs. IPv6: What's the difference?

  IPv4 and IPv6 are two forms of IP addresses, but they differ in length and style. Compare the two, and find out why organizations might implement one over the other.  Continue Reading

• Wireless access point vs. router: What's the difference?

  The choice of a wireless access point vs. a router for wireless network connectivity depends on the physical size of the network, needs of the organization and the number of users.  Continue Reading

• What is the difference between Wi-Fi 6 and Wi-Fi 7?

  With its low latency, high throughput and multi-link operation capability, Wi-Fi 7 sounds promising. But will theoretical performance match the real-world experience?  Continue Reading

• The benefits and challenges of AI network monitoring

  The benefits include simplified network monitoring and automation capabilities. The challenges include data quality questions and integration complexities.  Continue Reading

• Ethernet vs. Carrier Ethernet: How do they differ?

  Connectivity over longer distances and higher data rates are some of the major differences that separate Carrier Ethernet from traditional wired Ethernet.  Continue Reading

• What is the role of machine learning in networking?

  Incorporating machine learning tools into a network can help teams predict traffic flows, generate smarter analytics, monitor network health, tighten security measures and more.  Continue Reading

• How does a NetOps strategy affect enterprise network teams?

  A NetOps approach uses DevOps frameworks to help network teams enable virtualization, automation and AI to create Agile networks and deploy applications faster.  Continue Reading

• Load sharing vs. load balancing: What's the difference?

  Load sharing and load balancing are two techniques that work to distribute traffic across a network. However, their methods of balancing differ significantly. Here's how.  Continue Reading

• Application vs. network load balancing: What's the difference?

  Network load balancing and application load balancing both handle traffic requests. But they process and direct those requests with different levels of speed and efficiency.  Continue Reading

• Pairing SD-WAN, UCaaS together has benefits and challenges

  Organizations may combine SD-WAN and UCaaS to gain synergies and avoid multivendor complexities. But the combination of the two technologies can create challenges.  Continue Reading

• Network engineer vs. network administrator: What's the difference?

  The difference between a network engineer and network administrator is an engineer is focused on network design, while an administrator is more focused on operations.  Continue Reading

• What are the different types of network switches?

  Some of the different types of network switches include managed, modular, unmanaged and stackable. Find out how different network switches dovetail and differ.  Continue Reading

• Does Wi-Fi 6 have better range than previous wireless standards?

  Yes, Wi-Fi 6 provides better wireless range. But it's not because of higher power output. The key is certain Wi-Fi 6 features can improve data rates at a given range.  Continue Reading

• Fog computing vs. edge computing: What's the difference?

  Fog computing vs. edge computing -- while many IT professionals use the terms synonymously, others make subtle but important distinctions between them.  Continue Reading

• What are the 6 components of structured cabling?

  The six components of structured cabling are Entrance Facilities, Equipment Room, Backbone Cabling, Telecommunications Room, Horizontal Cabling and Work Area.  Continue Reading

• Network redundancy vs. resiliency: What's the difference?

  The difference between network redundancy and resiliency is redundancy duplicates network devices while resiliency is the self-recovery of system failures.  Continue Reading

• The status of 5G rollouts in 2021 and 2022

  Major U.S. mobile operators -- AT&T, Dish, T-Mobile and Verizon -- are focused on deploying 5G through 2022. Learn about each provider's timeline.  Continue Reading

• Remote access vs. site-to-site VPN: What's the difference?

  A remote access VPN connects remote users from any location to a corporate network. A site-to-site VPN, meanwhile, connects individual networks to each other.  Continue Reading

• CDN vs. cloud computing: What's the difference?

  Content delivery networks and cloud computing architectures may appear to serve the same function. But each has a specific role to play when distributing content.  Continue Reading

• Best practices and tools for public cloud monitoring

  Public cloud adoption has ramped up in recent years. In these busy environments, certain cloud network monitoring tools can provide IT groups with crucial visibility.  Continue Reading

• What does the 0.0.0.0 IP address mean and why is it used?

  One of a few special-purpose addresses, IP address 0.0.0.0 has several applications in networking. It stands in as a placeholder address, identifies a default route and more.  Continue Reading

• What is the network edge and how is it different from edge computing?

  The network edge is where an enterprise network connects to third-party network services. Edge computing is a distributed architecture that processes data closer to end users.  Continue Reading

• The differences between PAP and CHAP

  PAP uses a two-way handshake to authenticate client sessions, while CHAP uses a three-way handshake. Both authentication processes are common, but one is more secure.  Continue Reading

• Static vs. dynamic routing: What is the difference?

  Static routing uses preconfigured routes to send traffic to its destination, while dynamic routing uses algorithms to determine the best path. How else do the two methods differ?  Continue Reading

• How to use two VPN connections at the same time

  Network managers and users might opt to set up two VPN connections at the same time, from the same remote device. But that might not be possible -- or safe.  Continue Reading

• 6 trends in corporate campus networks

  Networks are evolving, and that evolution includes enterprise campus networks. Trends like network automation, 5G and machine learning are modernizing campus networks.  Continue Reading

• Sometimes I get a message, 'specified port already open.' What does it mean?

  Find out what error messages 'the specified port is already open' or 'the specified port is already in use' mean, and learn how to troubleshoot and fix them.  Continue Reading

• What does a network infrastructure upgrade project involve?

  Explore the steps organizations must take to upgrade their network infrastructure, including how to tell if an upgrade is necessary and how to evaluate resources for the project.  Continue Reading

• How are network operations center responsibilities changing?

  If your network operations center responsibilities haven't changed yet due to evolutions like DevOps and edge computing, they likely will soon. Here's what you need to know.  Continue Reading

• DevNet vs. CCNA: What's the difference?

  While CCNA certification concentrates on foundational network engineering knowledge, DevNet certification focuses on modern networking concepts, like automation and software.  Continue Reading

• VLAN vs. subnet: What's the difference?

  While VLANs are a type of subnet, they have their own unique capabilities and characteristics that differentiate them from subnets. However, the OSI model plays a major role in both.  Continue Reading

• Broadband vs. Wi-Fi: What's the difference?

  Broadband and Wi-Fi are common technical terms often used interchangeably -- although they shouldn't be. Both provide connectivity, but they do so in different ways.  Continue Reading

• What are the differences between Wi-Fi and WiMax?

  Wi-Fi is the wireless standard used to build wireless LANs, while carriers primarily used WiMax to build wireless metropolitan area networks before moving to LTE.  Continue Reading

• What's the role of narrowband IoT in 5G networks?

  The union of narrowband IoT and 5G technology can benefit manufacturers, organizations with large office buildings and outdoor campus settings. Here's what you need to know.  Continue Reading

• What is the difference between IP telephony and VoIP?

  While many IT professionals use VoIP and IP telephony synonymously, some argue for keeping a couple of subtle distinctions between the two terms in mind.  Continue Reading

• How do VPN vs. cloud services compare for remote work?

  As remote work becomes increasingly normal, IT teams must decide which remote access technologies will benefit employees more. VPN and cloud services are two top choices.  Continue Reading

• What network automation certification options are available?

  Network automation certifications and training include vendor-specific commercial credentials, as well as open source options. Which career path is right for you?  Continue Reading

• Edge computing challenges and ways to address them

  Edge computing can reduce processing times and improve application performance, but the architecture has its issues. Here are eight challenges edge computing creates for the network.  Continue Reading

• How a network segmentation strategy works with SD-WAN

  Legacy segmentation techniques are often unwieldy. But, as enterprises contemplate network segmentation with SD-WAN, they must understand their network environments and goals.  Continue Reading

• What does a VPN concentrator do?

  As more employees work remotely and VPN use rises, VPN concentrators have become trendy. But what does a VPN concentrator do exactly, and how do you deploy one?  Continue Reading

• Tips and tools for home network security monitoring

  Homes now have more connected devices, which could become targets for hackers. Consequently, work-from-home employees should take certain steps to safeguard their networks.  Continue Reading

• Private LTE networks grow as 5G comes into view

  Private LTE networks deliver secure cellular connectivity in localized enterprise or industrial spaces, with private 5G networks and newly available spectrum bands soon to follow.  Continue Reading

• 3 ways to prevent DDoS attacks on networks

  DDoS attacks on networks can result in devastating and expensive damage for organizations. Learn three ways to prevent and respond to DDoS attacks to keep company networks secure.  Continue Reading

• LoRa vs. 5G: Can they coexist for IoT network connectivity?

  LoRa vs. 5G technologies differ in terms of cost, use cases and technology types. However, LoRa and 5G may complement each other well for IoT connectivity.  Continue Reading

• What is the difference between SNMP and RMON?

  While Simple Network Management Protocol tracks network devices, Remote Network Monitoring tracks traffic. As a team, SNMP and RMON are essential for network management.  Continue Reading

• The future of networking jobs in the new normal

  Soft skills will grow in relevance as network pros adapt to a post-pandemic world that includes more remote troubleshooting and the move away from a hard network edge.  Continue Reading

• Managing VPN bandwidth requirements, speed and overhead

  Companies are relying on IPsec VPNs to connect their remote workers. But determining how much VPN bandwidth you need is just one consideration; VPN overhead is another.  Continue Reading

• What's the difference between GRE and IPsec tunnels?

  IPsec provides more comprehensive security for IP tunneling, while GRE tunnels work well when network teams need to tunnel with multiple protocols or multicast.  Continue Reading

• What are the risks of third-party VPN services?

  IP address leaks, DNS service leaks and WebRTC transmissions could expose your online activities if you use certain unreliable third-party VPN services.  Continue Reading

• What's the difference between a Layer 3 switch and a router?

  Even though they have common traits, there is a difference between a Layer 3 switch and a router. Each plays a key role in making sure packets get sent to their proper destination.  Continue Reading

• What's the difference between OFDMA vs. MU-MIMO in Wi-Fi 6?

  Is there a difference between OFDMA and MU-MIMO? The two important Wi-Fi 6 features are complementary but distinct. Here's why.  Continue Reading

• Compare the 2 common types of technical debt

  While enterprises often incur technical debt inadvertently through inexperience or poor management, sometimes, developers will plan technical debt to establish a market presence.  Continue Reading

• Is Wi-Fi 6 backward-compatible? Yes and no

  With the advent of a new wireless standard, some users may wonder: Is Wi-Fi 6 backward-compatible? The answer is yes. But do you want full backward compatibility?  Continue Reading

• Wi-Fi vs. Ethernet: What's the difference and which is better?

  When assessing Wi-Fi vs. Ethernet, each connection type has its benefits and drawbacks. Find out why one standard might be more reliable for your network.  Continue Reading

• What are the 5 different types of network management?

  Security policies, optimal service levels, configuration changes and even cost control measures all encompass the different types of network management.  Continue Reading

• What are the differences between VPN and VDI services?

  With a common denominator of 'virtual,' both VPNs and VDI are common in remote work strategies. However, the technologies differ in terms of cost, use cases and performance.  Continue Reading

• What is the difference between a socket and a port?

  Sockets, ports and port numbers have functional overlap, but the terms are distinct. A socket is part of a port, while a port number is part of a socket. We explain.  Continue Reading

• SNMP vs. CMIP: What's the difference?

  While SNMP and CMIP originally competed as network management protocols in the 1980s, SNMP has emerged as the more relevant protocol, largely due to its simplicity.  Continue Reading

• What's the latest on NFV and VNFs for enterprises?

  As virtualized network functions become more and more common, will that change NFV and VNF roles in businesses? Probably not, but other roadblocks may hinder further results.  Continue Reading

• How is SD-WAN as a service different from managed SD-WAN?

  SD-WAN technology is available in a variety of business models, including SD-WAN as a service and managed SD-WAN. But how do the different consumption models compare?  Continue Reading

• What do the 6 GHz band and Wi-Fi 6E mean for wireless networking?

  The FCC is expected to approve the 6 GHz band for Wi-Fi, which should improve speed and capacity for wireless networks. But make sure your devices can use the 6 GHz band.  Continue Reading

• What does 'network on demand' mean for enterprises?

  Following the on-demand trend, network on-demand options provide enterprises with more flexible consumption models, such as managed network services and cloud-based networking.  Continue Reading

• What are some of the weaknesses of SD-WAN?

  Cost, complexity and interoperability issues with existing network components are some of the weaknesses of SD-WAN that organizations need to consider.  Continue Reading

• Can WPA2 be upgraded to WPA3?

  A migration from WPA2 to WPA3 is not simple. Organizations may need to update their hardware extensively to accommodate the newer Wi-Fi encryption standard.  Continue Reading

• What is the difference between LoRa and LoRaWAN?

  LoRa is a modulation technique for specific wireless spectrum, while LoRaWAN is an open protocol that enables IoT devices to use LoRa for communication.  Continue Reading