Email Alerts
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IP addressing and subnetting: Calculate a subnet mask using the subnet's formula
IP addressing and subnetting are an important part of networks. Learn how the subnet's formula works and why it's important to know how to calculate the subnet mask "longhand." Tip
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IP addressing and subnetting: Calculate a subnet mask using the host's formula
IP addressing and subnetting are an important if basic part of networks. Network administators will learn how to calculate a subnet mask using the host's formula. Tip
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How does IPv6 compare to IPv4 in its configuration?
Silvia Hagen, our IPv6 expert, talks about the IPv6 address and subnetting, in this Q&A. Ask the Expert
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What is the possible impact of switching 64 subnets to 70?
In this response, our IPv6 expert, Silvia Hagen, answers what the impact is of using 70 subnets instead of 64. Ask the Expert
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IP addressing and subnetting: What network administrators need to know
IP addressing and subnetting are an important part of networks. Learn about how IP addresses work, subnet masks, classful vs. classless IP addresses, default gateways and more. Tip
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BGP on a Cisco 805 Router
In this Q&A, our expert, Sudhanshu Gupta answers whether or not a Cisco 805 Router supports BGP. Ask the Expert
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switched virtual circuit (SVC)
In a network, a switched virtual circuit (SVC) is a temporary virtual circuit that is established and maintained only for the duration of a data transfer session. Definition
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TCP/Internet Protocol and OSI
This explains the layers in TCP/IP and the OSI model, and what the differences are. Article
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Troubleshoot networks with the pathping command
You can troubleshoot networks with the pathping command, which works like a combination of ping and tracert. Tip
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The official protocol of the Internet! -- Chapter 1 of "TCP/IP first-step"
Chapter 1 of TCP/IP first-step by Mark Sportack describes the basics of TCP/IP and illustrates how it relates to the Internet. Further, it explains the five critical communications functions that TCP/IP performs and explains what TCP/IP can't ... Chapter Download
Network Management Strategies for the CIO