CCNA

Introduction-to-the-Command-Line-Interface-(CLI)-with-the-help-of-Features

Introduction to the Command Line Interface (CLI) with the help of Features

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Introduction to the Command Line Interface (CLI) with the help of Features In this article is explaining CLI Features , how to use CLI & how to debug CLI. If you printed the Cisco IOS Command Reference documents, you’d end up with a stack of paper several feet tall. nobody should expect to memorize all the commands—and nobody does. you’ll use several very easy, convenient tools to assist remember commands and save time typing. As …

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Learning-MAC-Addresses-infosavvy

Learning MAC Addresses

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Learning MAC Addresses Thankfully, the networking staff doesn’t need to type altogether those MAC table entries. Instead, the switches do their second main function: to learn the MAC addresses and interfaces to place into its address table. With an entire MAC address table, the switch can make accurate forwarding and filtering decisions as just discussed. Switches build the address table by listening to incoming frames and examining the source MAC address within the frame. If …

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Verifying and Analyzing Ethernet Switching

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Verifying and Analyzing Ethernet Switching A Cisco Catalyst switch comes from the factory able to switch frames. All you’ve got to do is connect the facility cable, connect the Ethernet cables, and therefore the switch starts switching incoming frames. Connect multiple switches together, and that they are able to forward frames between the switches also . and therefore the big reason behind this default behavior has to do with the default settings on the switches. Cisco Catalyst switches …

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Accessing-the-Internet

Accessing the Internet

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Accessing the Internet Many people begin their CCENT and CCNA Routing and Switching study never having heard of leased lines, but many of us have heard of two other WAN technologies wont to gain access to the Internet: digital subscriber line (DSL) and cable. These two WAN technologies don’t replace leased lines altogether cases, but they are doing play an important role within the specific case of making a WAN connection between a home or …

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Overview-of-Network-Layer Functions

Overview of Network Layer Functions

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Overview of Network Layer Functions Many protocol models have existed over the years, but today the TCP/IP model dominates. And at the network layer of TCP/IP, two options exist for the most protocol around which all other network layer functions revolve: IP version 4 (IPv4) and IP version 6 (IPv6). Both IPv4 and IPv6 define the same sorts of network layer functions, but with different details. This chapter introduces these network layer functions for IPv4, …

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Introduction-to-Leased-Lines-WAN-(Wide Area Network)

Introduction to Leased Lines WAN (Wide Area Network)

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Leased Lines WAN (Wide Area Network) Introduction to Leased Lines WAN (Wide Area Network) this is a part of networking and in this article you will learn Positioning Leased-Line with LANs and Routers, Physical details of Leased-Lines and Building a WAN Link during a Lab. Imagine that you are the primary network engineer for an enterprise TCP/IP inter network. Your company is building a new building at a site 100 miles away from your corporate …

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Sending Ethernet Frames with Switches and Hubs-infosavvy

Sending Ethernet Frames with Switches and Hubs

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Ethernet LANs behave slightly differently depending on whether the LAN has mostly modern devices, in particular, LAN switches rather than some older LAN devices called LAN hubs. Basically, the use of more modern switches allows the use of full-duplex logic, which is much faster and simpler than half-duplex logic, which is required when using hubs. the final topic during this chapter looks at these basic differences. Sending in Modern Ethernet LANs Using Full Duplex Modern …

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sending-data-in-ethernet-networks

Sending Data in Ethernet Networks

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Sending Data in Ethernet Networks Although physical layer standards vary quite bit, other parts of the Ethernet Networks standards work  the same way, no matter the sort of physical Ethernet link.Next, this final major section of this chapter looks at several protocols and rules that Ethernet uses no matter the sort of link. especially , this section examines the details of the Ethernet Networks link layer protocol, plus how Ethernet nodes, switches, and hubs forward …

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Building Physical Ethernet Networks with UTP-infosavvy

Building Physical Ethernet Networks with UTP

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For this second of three major sections of this chapter, I focus on the individual physical links between any two Ethernet nodes. Before the Ethernet network as an entire can send Ethernet frames between user devices, each node must be ready and ready to send data over an individual physical link. This section looks at some of the particulars of how Ethernet sends data over these links. This section focuses on the three most ordinarily …

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