Found 20 entries

Basics of the Cisco IOS
Cisco's Internetwork Operating System (IOS) software platform is implemented on the varied hardware used in this course. It is the embedded software a ...

Cisco Router Configuration Basics
Note that this tutorial does not cover physically connecting the router to the networks it will be routing for. It covers operating system configur ...

Dial-on-Demand Routing
Dial-on-Demand routing refers to a collection of Cisco features that allows two or more Cisco routers to establish a dynamic connection over ...

Difference between RIPv1 and RIPv2
The main difference between RIPv1 and RIPv2 is classless routing. RIPv2 incorporates the addition of the network mask in the update to allow classles ...

Frame Relay Concepts
Frame Relay is a connection-oriented data-link technology that defines single-link virtual circuit multiplexing by assigning connection iden ...

Introduction to Bridging and Switching
Bridges and switches operate principally at Layer 2 of the OSI reference model. As such, they are widely referred to as data-link layer devices. Bridg ...

IOS Location Process
The sequence of events the bootstrap code follows to find the image follows: Check the boot field of the configuration register ...

IP Addressing
In a TCP/IP environment, end stations communicate seamlessly with servers or other end stations. This communication occurs because each node using the ...

ISDN BRI Concepts
ISDN refers to a collection of standards that define a digital architecture that provides an integrated voice/data capability to a location, ...

Layer 2 Encapsulation Protocols
High-Level Data Link Control (HDLC) - HDLC is the default encapsulation type on point-to-point, dedicated links, and circuit-switched connec ...

Major Components of a Router
RAM Random access memory contains the software and data structures that allow the router to function. The principle software running in RAM is ...

Open Systems Interconnection(OSI) Model
The Open Systems Interconnection (OSI) model began as a reference model, but has since been implemented. It was created by the International Organizat ...

READONLY
Mark variables/functions as readonly. SYNTAX readonly [-apf] [name] ... OPTIONS -f Each name refers to a shell ...

RM
Remove files (delete/unlink) SYNTAX rm [options]... file... OPTIONS -d, --directory unlink directory, even if non-empty (super-u ...

RMDIR
Remove directory, this command will only work if the folders are empty. Syntax rmdir [options]... folder(s)... Options --ignore-fa ...

Routing
Routing is the process by which an item gets from one location to another. Many items get routed: for example, mail, telephone calls, and trains. In n ...

RSYNC
Remote file copy - Synchronize file trees across local disks, directories or across a network. SYNTAX # Local file to Local file rsync [op ...

TCP/IP Overview
The Transmission Control Protocol/Internet Protocol (TCP/IP) suite of protocols was developed as part of the research done by the Defense Advanced Res ...

Understanding Access Lists
Router Access Lists manage IP traffic as network access grows and filter packets as they pass through the router. Access list appl ...

WAN Concepts and Terminology
A WAN is different from a LAN. Unlike a LAN, which connects workstations, peripherals, terminals, and other devices in a single building or other smal ...