Please Whitelist This Site?

I know everyone hates ads. But please understand that I am providing premium content for free that takes hundreds of hours of time to research and write. I don't want to go to a pay-only model like some sites, but when more and more people block ads, I end up working for free. And I have a family to support, just like you. :)

If you like The TCP/IP Guide, please consider the download version. It's priced very economically and you can read all of it in a convenient format without ads.

If you want to use this site for free, I'd be grateful if you could add the site to the whitelist for Adblock. To do so, just open the Adblock menu and select "Disable on tcpipguide.com". Or go to the Tools menu and select "Adblock Plus Preferences...". Then click "Add Filter..." at the bottom, and add this string: "@@||tcpipguide.com^$document". Then just click OK.

Thanks for your understanding!

Sincerely, Charles Kozierok
Author and Publisher, The TCP/IP Guide


NOTE: Using software to mass-download the site degrades the server and is prohibited.
If you want to read The TCP/IP Guide offline, please consider licensing it. Thank you.

The Book is Here... and Now On Sale!

Get The TCP/IP Guide for your own computer.
The TCP/IP Guide

Custom Search







Table Of Contents  The TCP/IP Guide
 9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)
      9  Name Systems and TCP/IP Name Registration and Name Resolution
           9  Name System Issues, Concepts and Techniques

Previous Topic/Section
Name System Overview and Motivation
Previous Page
Pages in Current Topic/Section
1
2
Next Page
Name Spaces and Name Architectures (Flat and Hierarchical)
Next Topic/Section

Name System Functions: Name Space, Name Registration and Name Resolution
(Page 2 of 2)

Relationships Between Name System Functions

The name space is more of a “descriptive” function; it is a definition of how names work in the system. Name registration and resolution are more “active” functions, with each name system including one or more specific procedures for how these jobs are carried out. Name registration and resolution are in some ways complements of each other, so certain registration techniques are most often associated with particular resolution methods. In turn, the types of registration and resolution methods that are possible depends on the name space and in particular its architecture. These relationships are shown in simplified form in Figure 231.


Figure 231: Name System Functions

This diagram shows the relationships between the three main functions of a name system. The name space defines the structure of the name system and the rules for creating names. The name space is used as the basis for the name registration method, which defines the mappings between names and addresses.When a user wants to access a device by name, a name resolution method is used to consult the name space, determine what address is associated with a name, and then convert the name to an address.

 


The processes of registration and resolution can be either quite plain or fairly complicated, depending on the type of name system used. Simple name systems are largely manual in operation, easy to understand and best used in smaller networks. Larger, more complex networks and internetworks require more sophisticated methods of registration and resolution, which work with less need for administrator intervention and scale better as new machines are added to the network.

I should also point out that while I consider name registration and name resolution as “functions” at the highest level, they are probably better thought of as sets of functions. Name registration is necessarily tied into issues such as name system administration and management, and understanding resolution requires that we look at a number of important implementation issues in the areas of efficiency and reliability. The next few topics expand on this overview by considering each of these three functions in more detail.

Key Concept: A name system consists of three theoretical high-level functions: the name space, which describes how names are created and organized; the name registration technique, which is used to set up relationships between names and addresses; and the name resolution method, which is responsible for translating names to addresses.



Previous Topic/Section
Name System Overview and Motivation
Previous Page
Pages in Current Topic/Section
1
2
Next Page
Name Spaces and Name Architectures (Flat and Hierarchical)
Next Topic/Section

If you find The TCP/IP Guide useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider purchasing a download license of The TCP/IP Guide. Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $



Home - Table Of Contents - Contact Us

The TCP/IP Guide (http://www.TCPIPGuide.com)
Version 3.0 - Version Date: September 20, 2005

Copyright 2001-2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.