Network infrastructure
Network hardware and physical appliances, such as routers, switches, gateways, hubs and bridges, serve as the vital foundation of network infrastructure. Common network protocols and more emergent network software also play major roles in any architecture. While networking has shifted to software-centric principles, see how traditional network infrastructure keeps pace.
Top Stories
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Tip
03 Oct 2025
Navigate networking with cable management software
Cable management software has become an essential tool for managers keeping track of thousands of network components. Before you buy, make sure you know what you're getting. Continue Reading
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Tip
01 Oct 2025
How to build a virtual network lab in the AI era
Network teams use virtual labs to test new network configurations and technologies. As AI integrates into networks, virtual labs must upgrade to handle their massive workloads. Continue Reading
- Answer 14 Oct 2005
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Definition
21 Sep 2005
well-known port numbers
The well-known port numbers are the port numbers that are reserved for assignment by the Internet Corporation for Assigned Names and Numbers (ICANN) for use by the application end points that communicate using the Internet's Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP). Continue Reading
- Answer 20 Jul 2005
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Tip
17 Mar 2005
Focus Windows port scanning with the netscan command
How to use the netscan command to focus Windows port scanning. Continue Reading
- Answer 17 Mar 2005
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Answer
11 Jan 2005
Can you assign an IP address ending in .0 or .255?
Learn how to assign an IP address ending in .0 or .255 from networking fundamentals expert Chris Partsenidis in this Q&A. Continue Reading
- Answer 22 Nov 2004
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Tutorial
07 Oct 2004
Routing First-Step: IP header format
Routing and Internet addressing are two important concepts involved in networking. Routing First-Step covers the basics of routing in clear, easy-to-understand language. Continue Reading
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Tutorial
26 Jul 2004
Five critical planning steps for wireless LANs, Step 5: Manageability -- Switching to WLAN switches
This article explains how WLAN switches will help to alleviate manageability issues. Continue Reading
- Answer 20 Jul 2004
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