Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

SNA vs TCP/IP

Posted on 2007-12-05
2
Medium Priority
?
1,051 Views
Last Modified: 2008-02-22
Why is TCP/IP better than SNA??
0
Comment
Question by:wzimmerl
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
2 Comments
 
LVL 7

Accepted Solution

by:
Wod earned 1500 total points
ID: 20416828
Advantages

    * Localization of problems in the telecommunications network was easier because a relatively small amount of software actually dealt with communication links. There was a single error reporting system.
    * Adding communication capability to an application program was much easier because the formidable area of link control software that typically requires interrupt processors and software timers was relegated to system software and NCP.


see: http://en.wikipedia.org/wiki/Systems_Network_Architecture
0
 
LVL 7

Assisted Solution

by:Wod
Wod earned 1500 total points
ID: 20416834
that was the advantages of SNA... here are the disadvantages (the price was one):

    * Connection to non-SNA networks was difficult. An application which needed access to some communication scheme, which was not supported in the current version of SNA, faced obstacles. Before IBM included X.25 support (NPSI) in SNA, connecting to an X.25 network would have been awkward. Conversion between X.25 and SNA protocols could have been provided either by NCP software modifications or by an external protocol converter.

    * SNA network installation is complicated and SNA network products are (or were) expensive. Attempts to reduce SNA network complexity by adding IBM Advanced Peer-to-Peer Networking functionality were not really successful, if only because the migration from traditional SNA to SNA/APPN was very complex, without providing much additional value, at least initially. SNA software licences (VTAM) cost as much as $10000 a month for high-end systems. And SNA IBM 3745 Communications Controllers typically costed over $100K. TCP/IP was still seen as a toy for scientists and unfit for professional applications e.g. in the finance industry until the late 1980s, but rapidly took over in the 1990s due to its elegance and its lower cost. When the price of SNA products was lowered too, it was too late.
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Phishing is at the top of most security top 10 efforts you should be pursuing in 2016 and beyond. If you don't have phishing incorporated into your Security Awareness Program yet, now is the time. Phishers, and the scams they use, are only going to …
Keystroke loggers have been around for a very long time. While the threat is old, some of the remedies are new!
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
Suggested Courses

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question