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Understanding the way a network operates is the first step to understanding routing and switching. The network operates by connecting computers and peripherals using two pieces of equipment; switches and routers. Switches and routers, essential networking basics, enable the devices that are connected to your network to communicate with each other, as well as with other networks.

Though they look quite similar, routers and switches perform very different functions in a network.

The valuable component of your networking basics, are used to tie multiple networks together. For example, you would use a router to connect your networked computers to the Internet and thereby share an Internet connection among many users. The router will act as a dispatcher, choosing the best route for your information to travel so that you receive it quickly.

Routers analyze the data being sent over a network, change how it is packaged, and send it to another network, or over a different type of network. They connect your business to the outside world, protect your information from security threats, and can even decide which computers get priority over others.



Switches are used to connect multiple devices on the same network within a building or campus. For example, a switch can connect your computers, printers and servers, creating a network of shared resources. The switch, one aspect of your networking basics, would serve as a controller, allowing the various devices to share information and talk to each other. Through information sharing and resource allocation, switches save you money and increase productivity.

There are two basic types of switches to choose from as part of your networking basics: managed and unmanaged.

  • An unmanaged switch works out of the box and does not allow you to make changes. Home-networking equipment typically offers unmanaged switches.
  • A managed switch allows you access to program it. This provides greater flexibility to your networking basics because the switch can be monitored and adjusted locally or remotely to give you control over network traffic, and who has access to your network.



Cisco’s powerful, automated RF optimization system delivers high performance in high density environments and under challenging interference conditions.Cisco Application Visibility and Control (AVC) solution for wireless networks identifies more than 1000 business or consumer-class applications using deep packet inspection (DPI). With this extraordinary visibility into application traffic, administrators can mark applications for further prioritization, or block them for security reasons or to conserve limited network bandwidth. AVC offers these benefits:

Improved Quality of Experience

Proactive monitoring and end-to-end application visibility accelerate troubleshooting and reduce network downtime.

Better Network Management

Network capacity management and planning improve through greater visibility of application usage and performance.


To deal with today’s biggest security challenges, organizations need a simpler, scalable, threat-centric approach that addresses security across the entire attack continuum – before, during, and after an attack.

Before an attack, you need comprehensive awareness of and visibility showing what’s on the extended network so you can implement policies and controls to defend it.

During an attack, the ability to continuously detect malware and block it is critical.

After an attack, you need to marginalize the impact of an attack by identifying point of entry, determining the scope, containing the threat, eliminating the risk of re-infection, and re-mediating.

The Cisco threat-centric security model is built to address your biggest security challenges, cover the entire attack continuum, and reduce security gaps and complexity caused by disparate products and disjointed solutions.The comprehensive Cisco portfolio of platform-based cyber-security solutions offer these benefits.