Network management and monitoring
Network management and monitoring are vital components of modern IT operations that help businesses run effectively and efficiently. Network observability also provides added visibility into the end-user experience. Find out how innovations such as AI, machine learning, network analytics and network automation are shaping the future of network management and monitoring.
Top Stories
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News
01 Jul 2025
HPE's Mottram touts key Aruba Networking AI advancements
The infrastructure company is injecting AI throughout its business, including its networking arm, which will harness the power of agentic AI. Continue Reading
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Tip
26 Jun 2025
How to configure multiple DHCP scopes on one Windows server
Deploying one DHCP server per subnet is time-consuming and costly. Configure multiple DHCP scopes on one Windows server to centralize network management and increase efficiency. Continue Reading
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Video
19 Aug 2024
MAC address vs. IP address explained
MAC and IP addresses serve different roles in data transmission, differing in location, format and use. Continue Reading
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Tutorial
07 Aug 2024
Examine a captured packet using Wireshark
Wireshark is a useful tool for capturing network traffic data. Network pros can make the most of the tool by analyzing captured packets to see what that data means for troubleshooting. Continue Reading
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Video
06 Aug 2024
Benefits and methods of load balancing
Load balancing ensures smooth network performance by distributing traffic equitably, enhancing scalability and adapting to dynamic IT landscapes. Continue Reading
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Definition
29 Jul 2024
What is network scanning? How to, types and best practices
Network scanning is a procedure for identifying active devices on a network by employing a feature or features in the network protocol to signal to devices and await a response. Continue Reading
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Feature
26 Jul 2024
The benefits and drawbacks of network as a service
NaaS, with its varied definitions and attributes, is hard to define. In a new EMA survey, enterprises laid out their expectations for NaaS, including its benefits and drawbacks. Continue Reading
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Definition
16 Jul 2024
remote terminal unit (RTU)
A remote terminal unit (RTU) is a microprocessor-based electronic device used in an industrial control system (ICS) to connect hardware to a distributed control system (DCS) or supervisory control and data acquisition (SCADA) system. Continue Reading
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Tip
15 Jul 2024
How network data models work with automation
Network data models can help network engineers with their automation strategies, thanks to the essential data they store about physical components, security and QoS. Continue Reading
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Answer
11 Jul 2024
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
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Tip
10 Jul 2024
A guide on how to learn network automation
Networks are always evolving, and network automation is the next step forward. From soft skills to AI, these skills are essential to understanding network automation. Continue Reading
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Feature
01 Jul 2024
Compare 5 single-vendor SASE providers
SASE has broad enterprise appeal because it combines security and connectivity. With so many vendor options available, enterprises might need help narrowing the search. Continue Reading
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Opinion
01 Jul 2024
HPE Discover 2024: Aruba Networking moves to center stage
HPE has made enterprise networking a critical part of its portfolio, with updates around AI, Aruba's networking tools, and the upcoming acquisition of Juniper. Continue Reading
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Answer
26 Jun 2024
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
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Definition
20 Jun 2024
packet coalescing
Packet coalescing involves using a computer's network interface card (NIC) to reduce the number of generated receive interrupts the adapter issues. Continue Reading
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Definition
13 Jun 2024
CIDR (Classless Inter-Domain Routing or supernetting)
CIDR (Classless Inter-Domain Routing or supernetting) is a method of assigning IP addresses that improves the efficiency of address distribution and replaces the previous system based on Class A, Class B and Class C networks. Continue Reading
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Definition
13 Jun 2024
Transmission Control Protocol (TCP)
Transmission Control Protocol (TCP) is a standard protocol on the internet that ensures the reliable transmission of data between devices on a network. Continue Reading
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Tutorial
11 Jun 2024
Use advanced DHCP logging techniques for troubleshooting
This guide helps admins solve problems on the network by explaining how to work with recorded activity in logs and set up an archival system to examine older incidents. Continue Reading
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Tip
10 Jun 2024
ARP vs. RARP: What's the difference?
Network devices use ARP to map IP addresses to MAC addresses. RARP, which is less common, accomplishes the reverse and enables network devices to map MAC addresses to IP addresses. Continue Reading
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Definition
07 Jun 2024
IT incident management
IT incident management is a component of IT service management (ITSM) that aims to rapidly restore services to normal following an incident while minimizing adverse effects on the business. Continue Reading
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Feature
07 Jun 2024
How an improved network experience enhances business
At Cisco Live 2024, leaders discussed how AI can support business objectives. Companies like CSL Behring and Room & Board improved their network experience with ThousandEyes. Continue Reading
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News
07 Jun 2024
Cisco makes Splunk the center of observability
Cisco is integrating Splunk, AppDynamics and ThousandEyes to create a critical differentiator in the observability market. Networking integration will come later. Continue Reading
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News
05 Jun 2024
Cisco commits to GenAI with HyperFabric, $1B fund
Cisco partners with Nvidia on HyperFabric as customers try to understand how generative AI will help them manage their network infrastructure. Continue Reading
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Feature
03 Jun 2024
Subnet use cases and considerations for network performance
Network administrators create subnets to split networks and optimize performance. Other reasons for subnetting include traffic management, cloud optimization and security. Continue Reading
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Feature
29 May 2024
Compare and assess 4 top small-business NAS devices
Discover how four NAS appliances stack up against one another regarding their available features to determine which product is right for your small business. Continue Reading
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Feature
22 May 2024
Latest AI network trends signal future of network automation
AI will revolutionize all aspects of network operations, from management to security. Experts discussed AI's potential and the challenges of readiness at ONUG Spring 2024. Continue Reading
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Feature
22 May 2024
The benefits of AI in network operations
Sessions at ONUG Spring 2024 highlighted how AI will transform networking. Experts discussed how AI can help optimize, automate and secure networks, despite some skepticism. Continue Reading
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Tip
20 May 2024
How to test changes in a network lab environment
Test labs are ideal for network engineers to observe potential outcomes of network changes. Successful tests require a solid lab environment and thorough testing process. Continue Reading
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Feature
16 May 2024
12 core Azure networking services you need to know
Network connectivity can make or break a cloud deployment. Discover the basics of Azure network services with this list of key offerings and terms. Continue Reading
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Tip
13 May 2024
How to use IPv6 in enterprise networks
The transition to IPv6 is a learning curve. Here's what to understand about IPv6, including benefits, troubleshooting techniques and best practices for secure integration. Continue Reading
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Tip
06 May 2024
The future of network licensing is Opex
Network licensing is shifting from Capex models to Opex, largely due to SDN and cloud networking evolution. Here are best practices network teams can use to plan for the future. Continue Reading
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Guest Post
06 May 2024
Network automation success begins with a source of truth
A network source of truth is essential for automation strategies. Organizations must know what data an NSoT contains and which tools to integrate for successful network automation. Continue Reading
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Feature
17 Apr 2024
Is network automation adoption necessary?
Automation is not a one-size-fits-all strategy for every network problem. Enterprises must examine their network's needs to determine if automation is a worthwhile investment. Continue Reading
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Tip
15 Apr 2024
The role of generative AI in networking
As networks grow more complex, generative AI emerges as a tool that can help network teams with a wide range of tasks, such as writing scripts, documentation and incident response. Continue Reading
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Tip
10 Apr 2024
Benefits and challenges of NetOps-SecOps collaboration
Organizations need to tread carefully when planning how to converge their networking and security teams to achieve potential benefits and mitigate the challenges. Continue Reading
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Feature
08 Apr 2024
The effects of network downtime and ways to fix it
Causes of network downtime include human error, misconfigurations and security threats. Experts weigh in on the consequences of network downtime, as well as ways to fix it. Continue Reading
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Feature
02 Apr 2024
SASE vs. SD-WAN: What's the difference?
SASE and SD-WAN are two similar architectures administrators use to provide secure network access, but they differ in terms of deployment, security, connectivity and more. Continue Reading
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Tip
28 Mar 2024
How to handle environmental regulations and green networking
Green networking is achievable if network managers ensure devices and supporting systems are energy-efficient and comply with established environmental regulations. Continue Reading
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Definition
22 Mar 2024
programmable logic controller (PLC)
A programmable logic controller (PLC) is a small, modular, solid-state computer with customized instructions for performing a particular task. Continue Reading
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Tip
21 Mar 2024
How to avoid internet black holes for the network
Black holes in the network disrupt connectivity and compromise data integrity. Network monitoring, team collaboration and routing optimization help minimize the negative effects. Continue Reading
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Tutorial
14 Mar 2024
How to use the LFTP client to download files
The open source LFTP client supports multiple file transport types, such as FTP and HTTPS, enabling administrators to use a single interface to upload and download files. Continue Reading
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News
12 Mar 2024
Arista adds network change analysis to CloudVision
Arista's CloudVision Universal Network Observability analyses network changes to assess their impact on applications and workloads, including those on virtualization platforms. Continue Reading
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Tip
07 Mar 2024
Using microservices and containers in network automation
Networking can benefit from the modularity of containers. This guide helps network teams navigate the integration of microservices and containers into network automation workflows. Continue Reading
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Feature
07 Mar 2024
VPNs persist amid the rise of ZTNA, other VPN alternatives
VPN use continues despite its outdated status in the networking industry. But usage has declined as enterprises make room for remote access alternatives, like ZTNA, SASE and more. Continue Reading
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Guest Post
04 Mar 2024
SASE drives network and security team collaboration
Successful SASE implementation requires network and security team collaboration. Research from EMA reveals shared responsibilities and multivendor strategies enhance teamwork. Continue Reading
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Tip
04 Mar 2024
How NetOps supports digital transformation
NetOps uses automation and intent-based networking tools to streamline digital transformation and ensure accurate and flexible network services. Continue Reading
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News
29 Jan 2024
Juniper adds data center networks to Mist AI
Juniper's Mist AI update will include using the Marvis virtual network assistant to obtain information on data center cabling, configurations and connectivity issues. Continue Reading
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Opinion
29 Jan 2024
Juniper goes AI-native with its networking platform
Juniper Networks' recent announcements point to its overarching plans to provide end-to-end network context and support GenAI strategies with its networking platform. Continue Reading
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Feature
26 Jan 2024
Automation, cloud drive network and security convergence
Network and security teams are unifying due to automation, cloud and SASE. Successful unified teams receive insights that support management, monitoring and troubleshooting. Continue Reading
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Definition
24 Jan 2024
network orchestration
Network orchestration is the use of a software-defined network controller that facilitates the creation of network and network security services to achieve business goals. Continue Reading
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Tutorial
19 Jan 2024
How to use TFTP to transfer files across the network
Trivial File Transfer Protocol is one of the oldest and simplest TCP/IP file exchange protocols. Here are use cases and best practices for installation and security. Continue Reading
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Definition
11 Jan 2024
baseboard management controller (BMC)
A baseboard management controller (BMC) is a specialized service processor that remotely monitors the physical state of a host system, such as a computer, network server or other hardware devices. Continue Reading
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Definition
10 Jan 2024
Wireshark
Wireshark is a widely used network protocol analyzer that lets users capture and view the details of network traffic in real time. It is particularly useful for troubleshooting network issues, analyzing network protocols and ensuring network security. Continue Reading
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News
09 Jan 2024
HPE to acquire Juniper Networks for $14 billion
HPE plans to use Juniper's hardware and software to make networking a 'core business and architecture foundation' for HPE's GreenLake hybrid cloud and AI platform. Continue Reading
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Tip
26 Dec 2023
Introduction to IP addressing and subnetting
IP addresses and subnets are necessary for effective network communications. Learn how IP addresses and subnets work, and compare classful and classless IP addresses. Continue Reading
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Tip
21 Dec 2023
Best practices for secure network automation workflows
It's not enough to build network automation workflows. It's important to secure those workflows, as well. Access control, encryption and collaboration all play important roles. Continue Reading
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Answer
08 Dec 2023
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
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Tip
05 Dec 2023
8 network tasks administrators can do quicker from the CLI
Admins can use the command-line interface to manage network tasks. Learn how to streamline automation, troubleshoot networks and manage services on Linux, macOS and Windows. Continue Reading
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Answer
22 Nov 2023
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
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Tip
15 Nov 2023
How to simplify network operations
Network challenges include visibility, scalability and security. NetOps teams should follow management best practices and consider cloud networking to simplify operations. Continue Reading
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Definition
15 Nov 2023
network load balancing (NLB)
Network load balancing (NLB) is a feature in multiple versions of the Microsoft Windows Server operating system (OS), Amazon Web Services (AWS) and other cloud service providers that distribute network traffic among multiple servers or virtual machines (VMs) within a cluster to avoid overloading any one host and improve performance. Continue Reading
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Definition
06 Nov 2023
network assurance
Network assurance is the method of validating whether services and policies configured on and across network appliances appropriately align with operational goals. Continue Reading
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Feature
03 Nov 2023
GSK unifies networking and security for cloud migration
Sessions at ONUG Fall 2023 emphasized the value of a unified networking and security approach. GSK integrated the two to begin its digital transformation journey to the cloud. Continue Reading
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Guest Post
31 Oct 2023
APIs integral to a successful DDI strategy
Research showed DDI success correlated with successful APIs, but few organizations feel satisfied with their API quality. Learn how to mitigate the challenges of DDI APIs. Continue Reading
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Feature
31 Oct 2023
Private 5G, NaaS, automation among top networking trends
Presentations at ONUG Fall 2023 focused on private 5G, network as a service and network automation, which have all become more important as network complexity intensifies. Continue Reading
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Definition
31 Oct 2023
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. Continue Reading
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Definition
30 Oct 2023
IP SLA (Cisco)
Internet protocol service level agreement (IP SLA) is a network performance monitoring (NPM) feature of the Cisco Internetwork Operating System (Cisco IOS) that enables an IT professional to collect information about network performance in real time. Continue Reading
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Tutorial
13 Oct 2023
Use cURL and Wget to download network files from CLI
Web browsers aren't the only tools that use HTTP to download files. Command-line tools, such as cURL and Wget, can download resources like VM images, configuration files and updates. Continue Reading
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Definition
10 Oct 2023
mean time to innocence
Mean time to innocence is the average elapsed time between when a system problem is detected and any given team's ability to say the team or part of its system is not the root cause of the problem. Continue Reading
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Feature
04 Oct 2023
How a DDI platform supports IP-based network management
A DDI platform simplifies IP network management in the cloud networking era. But collaboration among networking and other IT teams is crucial amid ongoing challenges. Continue Reading
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Tip
26 Sep 2023
Best practices for network automation with Python
Python libraries, version control, documentation and object-oriented programming provide helpful best practices for network engineers tackling network automation with Python. Continue Reading
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Opinion
22 Sep 2023
Cisco makes big splash with Splunk
The integration of Cisco and Splunk could result in a full-stack offering that provides comprehensive visibility across enterprise locations and AI-driven insights. Continue Reading
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Definition
20 Sep 2023
remote infrastructure management
Remote infrastructure management, or RIM, is a comprehensive approach to handling and overseeing an organization's IT infrastructure, systems and services from a remote location. Continue Reading
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Tip
14 Sep 2023
How to use NAPALM for efficient network management
NAPALM is a flexible Python library that can integrate with Ansible modules, support multivendor environments, and ease network management and automation strategies. Continue Reading
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Tutorial
05 Sep 2023
Use Angry IP Scanner to audit the network
Angry IP Scanner provides a network scanner alternative to Nmap that is simple, user-friendly and versatile across OSes. Scan types include ping scans, UDP scans and TCP scans. Continue Reading
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Feature
30 Aug 2023
SD-WAN consumption to change as NaaS market matures
NaaS is a cloud model that could provide a compelling way for enterprises to consume SD-WAN and other network services. Despite its potential, though, growth projections are slow. Continue Reading
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News
22 Aug 2023
VMware revamps cloud software for edge management
VMware's new Edge Cloud Orchestrator, formerly VMware SASE Orchestrator, manages VMware's edge compute and SD-WAN systems. Carmaker Audi plans to use the product in its factories. Continue Reading
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Opinion
16 Aug 2023
AI, automation promise bright future for network operations
A closed-loop system can help network operations teams build trust with AI and automation tools that identify network problems, send alerts and recommend repairs. Continue Reading
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Tutorial
16 Aug 2023
How to use tcpdump to capture and analyze traffic
Network administrators use tcpdump to analyze traffic in Linux systems. Learn how to install and use tcpdump, as well as examine the results of captured traffic. Continue Reading
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Feature
14 Aug 2023
5 trends for SD-WAN managed services
Enterprises interested in managed SD-WAN must evaluate essential considerations. Top trends include hybrid operations, vendor consolidation and AI-driven networking. Continue Reading
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News
14 Aug 2023
Cisco acquisitions target mostly ThousandEyes, Cloud Security
Cisco has made nine acquisitions this year, with all but two focused on improving internet monitor ThousandEyes as well as security manager and policy administrator Security Cloud. Continue Reading
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Tip
09 Aug 2023
Types of Nmap scans and best practices
Nmap scanning helps network teams with network reconnaissance and vulnerability discovery. Common types of scans include TCP SYN, OS detection, vulnerability and version detection. Continue Reading
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News
07 Aug 2023
SDI swaps Cisco wired, wireless LAN for Nile NaaS
Supply chain software maker SDI claims it cut LAN costs by a third with Nile. But Gartner says NaaS is unlikely to become a dominant option for on-premises networking. Continue Reading
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Definition
02 Aug 2023
Universal Plug and Play (UPnP)
Universal Plug and Play (UPnP) is a standard that lets network devices automatically find, communicate with and control each other. Continue Reading
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Feature
28 Jul 2023
Reasons to build and buy network automation tools
Most enterprises are building and buying network automation tools, and the reasons for both approaches are abundant. Find out why your organization might want to do the same. Continue Reading
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Tip
24 Jul 2023
An introduction to Git for network engineers
Git can be a useful tool for network engineers who manage complex infrastructure, especially as networking increasingly overlaps with software, automation and DevOps. Continue Reading
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Tip
14 Jul 2023
5 techniques to debug network issues in Linux and Windows
Debugging a network issue should start with basic troubleshooting. If that doesn't fix it, admins should check, verify and configure connections to the client, server and network. Continue Reading
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Opinion
05 Jul 2023
Cisco's vision for Networking Cloud becomes clear
Cisco is focused on simplifying, securing and delivering better experiences across networking, security, collaboration and apps in alignment with its vision to connect anything. Continue Reading
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Tutorial
05 Jul 2023
3 ways to troubleshoot using Wireshark and tcpdump
Protocol analyzer tools, such as Wireshark and tcpdump, can help network administrators identify protocols in the network, analyze network performance and discover network devices. Continue Reading
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News
30 Jun 2023
Prosimo offers free multi-cloud connectivity
The new MCN Foundation can find and connect to public clouds and provide visibility. The company's full-stack product powers the limited free version. Continue Reading
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News
29 Jun 2023
Cisco to add SamKnows broadband visibility to ThousandEyes
SamKnows data in ThousandEyes will let enterprises monitor the broadband connections of employees working from home. The information can help companies troubleshoot problems. Continue Reading
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News
22 Jun 2023
Cisco acquires Accedian for Network Assurance portfolio
Cisco expects Accedian to bolster its Network Assurance portfolio for service providers. The product line provides network troubleshooting, root-cause analysis, and remediation. Continue Reading
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Feature
09 Jun 2023
New Cisco tools aim to enable green networks, data centers
At Cisco Live 2023, Cisco unveiled new products and updates to its portfolio to help organizations create sustainable data center networks as they modernize their infrastructures. Continue Reading
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Feature
08 Jun 2023
NetworkGPT, ChatGPT plugins show promise for NetOps
NetworkGPT, a ChatGPT plugin revealed at Cisco Live 2023, shows the potential of how generative AI can integrate with and support network operations. Continue Reading
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News
06 Jun 2023
Cisco releases plans for Networking Cloud
Cisco's introduction of Networking Cloud lacked technical details and delivery dates for the high-level console for accessing all the company's network management platforms. Continue Reading
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Definition
06 Jun 2023
uploading
Uploading is the transmission of data from a local device to a remote device. Typically, the remote device is a larger server. Continue Reading
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Definition
02 Jun 2023
network performance monitoring (NPM)
Network performance monitoring (NPM) is the process of measuring and monitoring the quality of service of a network. Continue Reading
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Tip
31 May 2023
How to interact with network APIs using cURL, Postman tools
Network engineers can use cURL and Postman tools to work with network APIs. Use cases include getting interface information and manipulating device configuration data. Continue Reading
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Definition
31 May 2023
flow control
Flow control is a technique used to regulate data transfer between computers or other nodes in a network. Continue Reading
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Feature
30 May 2023
MLB simplifies operations with network automation platform
Network automation enables Major League Baseball to monitor its networks across dozens of stadiums and locations, automate mundane tasks, schedule upgrades and more. Continue Reading
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Feature
24 May 2023
AI in network management poses challenges for network pros
Research shows that, while AI helps increase business success, network pros struggle to use it more than their peers. Find out how organizations can encourage network pros to use AI. Continue Reading
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Definition
24 May 2023
data streaming
Data streaming is the continuous transfer of data from one or more sources at a steady, high speed for processing into specific outputs. Continue Reading