Network Bulls
www.networkbulls.com
Best Institute for CCNA CCNP CCSP CCIP CCIE Training in India
M-44, Old Dlf, Sector-14 Gurgaon, Haryana, India
Call: +91-9654672192
Describe the purpose and functions of various network
devices
Select the components required to meet a given network
specification
Use the OSI and TCP/IP models and their associated
protocols to explain how data flows in a network
Describe common networking applications including web
applications
Describe the purpose and basic operation of the protocols in
the OSI and TCP models
Describe the components required for network and Internet
communications
Identify and correct common network problems at layers 1,
2, 3 and 7 using a layered model approach
IMPLEMENT A SMALL SWITCHED NETWORK
Select the appropriate media, cables, ports, and connectors
to connect switches to other network devices and hosts
Explain the technology and media access control method for
Ethernet technologies
Explain network segmentation and basic traffic management
concepts
Identify, prescribe, and resolve common switched network
media issues, configuration issues, autonegotiation, and
switch hardware failures
Welcome to the exciting world of internetworking. This first
chapter will really help you understand the basics of internetworking
by focusing on how to connect networks using Cisco
routers and switches. First, you need to know exactly what an internetwork is, right? You
create an internetwork when you connect two or more LANs or WANs through a router and
configure a logical network addressing scheme with a protocol, such as IP. I’ll be covering
these four topics in this chapter:
Internetworking basics
Network segmentation
How bridges, switches, and routers are used to physically segment a network
How routers are employed to create an internetwork
I’m also going to dissect the Open Systems Interconnection (OSI) model and describe each
part in detail because you really need a good grasp of OSI for a solid foundation to build your
networking knowledge upon. The OSI model has seven hierarchical layers that were developed
to enable networks to communicate reliably
between disparate systems. Since this book centers
on all things CCENT, it’s crucial for you to understand the OSI model as Cisco sees it, so that’s
how I’ll be presenting the seven layers to you.
Since there are a bunch of different types of devices specified in the different layers of the
OSI model, it’s also very important to understand the many types of cables and connectors
used for connecting all those devices to a network. We’ll go over cabling Cisco devices, discussing
how to connect to a router or switch (along with Ethernet LAN technologies) and even
how to connect a router or switch with a console connection.
We’ll finish the chapter by discussing the three-layer hierarchical model that was developed
by Cisco to help you design, implement, and troubleshoot internetworks.
After you finish reading this chapter, take the time to answer the review questions and complete
the written labs. These are given to you to really lock the information from this chapter
into your memory. So don’t skip them!
To find up-to-the-minute updates for this chapter, please see
www.lammle.com
and/or
www.sybex.com/go/ccent
.
No comments:
Post a Comment