Download Cisco A Beginner's Guide Fifth Edition by Toby Velte, Anthony Velte PDF

By Toby Velte, Anthony Velte

Cisco networking essentials—made effortless!

Get an outstanding origin in Cisco items and applied sciences from this totally up-to-date bestseller. overlaying the most recent strategies, Cisco: A Beginner’s advisor, 5th Edition exhibits you, step by step, how one can layout, construct, and deal with customized networks. how you can configure undefined, use IOS instructions, arrange instant networks, and safe your platforms. You’ll additionally get pointers on getting ready for Cisco certification checks. Brand-new voice and social networking positive aspects, Cisco TelePresence, the cloud-based Cisco Unified Computing method, and extra are absolutely coated during this sensible source.

  • Understand Cisco networking and web fundamentals
  • Connect and configure routers and switches
  • Work with TCP/IP, wireless, and Ethernet applied sciences
  • Maintain your community via IOS and IOS XR
  • Handle protection utilizing firewalls, Adaptive safety home equipment, SecureX, TrustSec, and different instruments
  • Virtualize and migrate assets to a personal cloud
  • Manage instant networks with Aironet and Airespace
  • Deliver VoIP, video, and social networking prone
  • Design, administer, and music a Cisco company community
  • Identify and service functionality concerns and bottlenecks

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Additional info for Cisco A Beginner's Guide Fifth Edition

Example text

It’s written from the perspective of the premier manufacturer of internetworking technology: Cisco Systems. Because the technologies are covered generically, you’ll understand the systems and components needed to make any internetwork run, not just one built from Cisco products. But make no mistake: This book is about infrastructure—that is, about the devices over which internetworks operate: Routers These devices route data between networks, such as local area networks (LANs), wide area networks (WANs), and metro area networks (MANs).

A router is an intelligent device that forwards traffic based on the IP address of a message. Whereas switches have ports into which individual hosts plug, routers have interfaces to which LAN segments attach. In simple terms, a router’s job is to move packets of data between attached LAN segments. The router is the single most important type of device in internetworking. It provides the flexibility and decision-making power that make it possible to run complicated internetworks. Without the logical capability routers provide, the Internet would be hundreds of times slower and much more expensive.

The current state of the art for long-distance WAN is still OC-768, with a data rate of 40 Gbps (OC stands for optical carrier; Gbps stands for gigabits per second). However, private high-speed MANs and WANs are being built utilizing 100 Gbps Ethernet. 5 Mbps and 45 Mbps, respectively. It should be noted that multitudes of companies are following the lead of carriers by dropping their leased-line WAN links in favor of VPN (virtual private network) links over the public Internet as access costs drop and speed rises.

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