Networking: Page

extranet

An extranet is a private network that enterprises use to provide trusted third parties -- such as suppliers, vendors, partners, customers and other businesses -- secure, controlled access to business information or operations.

By Andrew Zola • July 14, 2021

How to use iPerf3 to test network bandwidth

In this in-depth tip, learn how to use iPerf3, a network testing tool to measure throughput and benchmark your WAN links to ensure effectivity.

By Kevin Tolly • July 14, 2021

Network Address Translation (NAT)

A Network Address Translation (NAT) is the process of mapping an internet protocol (IP) address to another by changing the header of IP packets while in transit via a router.

By Katie Terrell Hanna, John Burke • July 14, 2021

encoding and decoding

Encoding and decoding are used in many forms of communications, including computing, data communications, programming, digital electronics and human communications.

By Andrew Zola • July 13, 2021

customer premises equipment (CPE)

Customer premises equipment (CPE) is telecommunications and information technology equipment kept at the customer's physical location rather than on the service provider's premises.

By Katie Terrell Hanna • July 13, 2021

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.

By Andrew Froehlich, Mark Tuomenoksa • July 13, 2021

optoisolator (optical coupler or optocoupler)

An optoisolator (also known as an optical coupler, photocoupler, optocoupler) is a semiconductor device that transfers an electrical signal between isolated circuits using light.

By Katie Terrell Hanna • July 13, 2021

metadata

Often referred to as data that describes other data, metadata is structured reference data that helps to sort and identify attributes of the information it describes.

By Garry Kranz • July 12, 2021

Snort

Snort is an open source network intrusion detection system (NIDS) created by Sourcefire founder and former CTO Martin Roesch.

By Katie Terrell Hanna • July 8, 2021

token ring

A token ring is a data link for a local area network (LAN) in which all devices are connected in a ring or star topology and pass one or more tokens from host to host.

By Andrew Zola, John Burke, Kevin Ferguson • July 8, 2021

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?

By David Jacobs, Mark Dargin • July 6, 2021

poison reverse

In a computer network that uses the Routing Information Protocol (RIP) or other distance vector routing protocol, poison reverse is a loop avoidance process.

By Andrew Froehlich • July 2, 2021

Microsoft will host AT&T 5G network on Azure

AT&T will move its 5G services to Microsoft's Azure cloud. The move provides Microsoft with a critical 5G customer while AT&T cuts costs and gains scalability.

By Mike Gleason • July 1, 2021

12 official practice questions for the CCNA 200-301 exam

These practice questions for CCNA 200-301 lay out what readers need to know about network security and IP routing in the LAN, from 'CCNA 200-301 Official Cert Guide, Volumes 1 and 2.'

By Jennifer English, Michaela Goss, Pearson Education • June 30, 2021

Five-nines availability: What it really means

Learn what five-nines availability means and discover the steps enterprises should take to make sure network services are fully accessible.

By Chuck Moozakis • June 28, 2021

How enterprises can close 5 major SASE gaps

Despite five major gaps that hamper SASE implementation, Gartner recommended enterprises should plan their migration timeline and aim to consolidate to a single vendor.

By Deanna Darah • June 25, 2021

How to calculate network bandwidth requirements

Figuring out how to calculate bandwidth requirements is vital to ensuring your network runs smoothly, and it's best to use the correct formula from the beginning.

By Jessica Scarpati • June 24, 2021

Aruba adds network auto-fixes to AI Insights

Aruba's self-correct feature in AI Insights automatically fixes problems deemed safe to repair based on customer feedback.

By Antone Gonsalves • June 23, 2021

bus network

A bus network is a local area network (LAN) topology in which each node -- a workstation or other device -- is connected to a main cable or link called a bus.

By Andrew Froehlich • June 22, 2021

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.

By Paul Kirvan , Lisa Phifer • June 22, 2021

flooding (network)

In a computer network, flooding occurs when a router uses a non-adaptive routing algorithm to send an incoming packet to every outgoing link except the node on which the packet arrived.

By Katie Terrell Hanna • June 19, 2021

ping sweep (ICMP sweep)

A ping sweep (also known as an ICMP sweep) is a basic network scanning technique used to determine which of a range of IP addresses map to live hosts (computers).

By Katie Terrell Hanna • June 18, 2021

cognitive radio (CR)

Cognitive radio (CR) is a form of wireless communication in which a transceiver can intelligently detect which communication channels are in use and which ones are not.

By Rahul Awati • June 18, 2021

CRC-4 (Cyclic Redundancy Check 4)

CRC-4 (Cyclic Redundancy Check 4) is a form of cyclic redundancy checking -- a method of checking for errors in transmitted data -- that is used on E1 trunk lines.

By Rahul Awati • June 18, 2021

maximum transmission unit (MTU)

The maximum transmission unit (MTU) is the largest size frame or packet -- in bytes or octets (eight-bit bytes) -- that can be transmitted across a data link.

By Gavin Wright, TechTarget Contributor • June 17, 2021