Notes for Networking and Information Technology Concepts

Comments on the IT industry which perpuate an ongoing cycle of expenditure.

Trust no one

Maintain the paranoia

It will eventual fail

Year 2000 Compliance


Inequities of equipment Cost vs Support + Maintenance

vs

Cost Vs's Availability


Internetwork Design Guidlines


SNA 1200 bytes mainframe to screen, 300 bytes back to mainframe. 1200 bytes = 1 second @ 9600bits/sec.


Formulae and Methodology to calculate average frame size and to then calculate PPS on an Ethernet and accross router.


Standardising Naming and Addressing structures


Phased implementation vs cutover


Change Management


Problem Solving


Economics Triangle from Networkers Presenter last year.

Fast vs Good vs Cheap


Risk Management


Any to Any formulae

X x (x-1) / 2


Communities of Interest = VLANs


Economies of Scale


Browsers not caching the Names for the same URL's in th eWeb Page said that Browser will perform multiple DNS for subsequent URL's.


100 broadcasts / second

1000 broadcasts / second 23% Processor on Sparc2

3800 broadcasts / second killed Sparc2


Summary of BIT flipping for TR to Ethernet. The list of the same flipped bytes:


Perl 5 Online Manuals


List of References for each good thing, BOOKS

List of URL's for obvious good things


Appletalk


IPX