Crash Course: OSI model

Home > Networking Featured Topic

EMAIL THIS


Featured Topic:	Crash Course: OSI model

Last Updated: Nov 22, 2005

The OSI model is the conceptual backbone of most enterprise networks, but do you remember all the details? Read our rundown of the OSI model and what all those layers do.
>>	OSI Reference Model illustrated shows where commonly-used Internet products and services fit within the model.

What is OSI?

(30 Jul 2003)

Need a refresher on the OSI model? This overview explains the concept and defines each network layer.

Read Full Story


NEWS:
>>	What is OSI? (SearchNetworking.com) 22 Nov 2004
>>	Interconnecting Cisco Network Devices: Internetworking concepts overview (Cisco Press) 24 Mar 2002
>>	Understanding Layer 2, 3, and 4 protocols (Addison-Wesley Professional) 06 Jun 2003


ADVICE:
>>	Guide to Internet Protocol TIP :This 10-part series from Firewall.cx covers all you need to know about IP.
>>	OSI Crash Course 101 ASK THE EXPERTS :What is the command to ping a TCP port?
>>	Network layers explained ASK THE EXPERTS :What is the difference between Layer 2 and Layer 3?
>>	Layers of the network ASK THE EXPERTS :What exactly is a network layer, and what is its importance to the network? Also please explain the significance of the layer ...
>>	Protocols in the OSI model ASK THE EXPERTS :I am looking for the protocols that are associated with each individual layer in the OSI seven-layer model and which ones are ...
>>	Who created the OSI model? ASK THE EXPERTS :What company created the OSI model?
>>	Protocols vs. network layers? ASK THE EXPERTS :I want to know how actually the protocols are embedded in the layers of network architectures(OSI/TCP/IP)?Are there any ...
>>	Why does the OSI model have 7 layers - no more no less? ASK THE EXPERTS :Why does the OSI model have 7 layers - no more no less?
>>	What type of security is associated with each level of the OSI model? ASK THE EXPERTS :What type of security is associated with each level of the OSI model?


WHITE PAPERS:
>>	Open Systems Interconnection (OSI) routing protocol

Digg This!

StumbleUpon

Del.icio.us

RELATED CONTENT

	Network Design
	Networking Products of the Year 2004
	The best of 2004
	OSPF - Juniper vs. Cisco
	Intranet tunneling
	Open source routers
	Designing and upgrading manageable networks
	Tuning TCP
	Sizing routing protocols
	Who wants 10G?
	Five tips for better IP summarization

Standards and Protocols

The bandwidth challenge - How much is enough?

Networking Products of the Year 2004

The best of 2004

Using multiple routing protocols

Know your network cable

IP storage 101 for the network admin

Securing Cisco networks

WLAN standards update

Convergence timers and network design

Do you need IPv6?

The OSI Model

What network monitoring tools monitor all OSI layers?

How do routers and switches differ in the OSI model?

How can I define the layered approach to protocols?

How does a Layer 3 switch work in a network?

OSI -- Securing the stack

OSI: Securing the Stack, Layer 8 -- Social engineering and security policy

OSI: Securing the Stack, Layer 7 -- Applications

OSI: Securing the Stack, Layer 6 -- Encryption

Network security -- Taking the layered approach

Is it possible to convert a Layer 2 switch to a Layer 3 switch?

RELATED GLOSSARY TERMS

Terms from Whatis.com − the technology online dictionary

ES-IS (WhatIs.com)

FTAM (SearchNetworking.com)

layer 2 (SearchNetworking.com)

Network layer (SearchNetworking.com)

OSI (SearchNetworking.com)

physical layer (SearchNetworking.com)

Session layer (SearchNetworking.com)

Technical Office Protocol (SearchNetworking.com)

TP0-TP4 (SearchNetworking.com)

Transport Services Access Point (SearchNetworking.com)

RELATED RESOURCES

2020software.com, trial software downloads for accounting software, ERP software, CRM software and business software systems

Search Bitpipe.com for the latest white papers and business webcasts

Whatis.com, the online computer dictionary

>	Technical book excerpts
>	Security patching and upgrades
>	Wireless troubleshooting
>	Cisco Spotlight Series
>	Tried and true networking protocols
View full list of Featured Topics

SEARCH

TechTarget provides enterprise IT professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective IT purchase decisions and managing their organizations' IT projects - with its network of technology-specific Web sites, events and magazines.


TechTarget Corporate Web Site \| Media Kits \| Site Map All Rights Reserved, Copyright 2000 - 2009, TechTarget \| Read our Privacy Policy