Solved

SNA vs TCP/IP

Posted on 2007-12-05
2
992 Views
Last Modified: 2008-02-22
Why is TCP/IP better than SNA??
0
Comment
Question by:wzimmerl
  • 2
2 Comments
 
LVL 7

Accepted Solution

by:
Wod earned 500 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 500 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

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
EIGRP on point-to-point vlan 14 65
Adding switches as opposed to running cables 4 92
Which Switch is Switch - improving performance 9 42
RNC Hacking Question 6 28
Getting hacked is no longer a matter or "if you get hacked" — the 2016 cyber threat landscape is now titled "when you get hacked." When it happens — will you be proactive, or reactive?
Read about achieving the basic levels of HRIS security in the workplace.
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…
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…

911 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

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now