[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: ARP requests on my net?



On Wed, 2006-05-04 at 22:50 -0500, Mike McCarty wrote:
> Guy Fraser wrote:
> > Oops... 8^0
>  >
> > I messed up the layer levels, my bad!
> 
> Oh, ok. I thought I was either so far out in left field
> that I wasn't even on the field, going crazy, or you
> had made a mistake. I'm glad it was the last :-)
> 
> > It has been over 20 years since I learnt them and it is 
> > not something that comes up more than once or twice in a 
> > decade. Besides Microsoft teaches network layers strangely 
> > and most of the people who blather on about the layers are 
> > MCSE's and we mostly know that means they can read, but 
> > until they get a few years of experience they do not know 
> > much that is of any practical use. It is more important to 
> > know how the communication layers work than how they 
> > classified.
> 
> That's certainly true. And OSI is not the only protocol
> model around, either.
> 
> Here's something humorous associated with the OSI model for comm...
> 
> http://www.lewistech.com/rlewis/Resources/JamesBondOSI2.aspx
> 
Yes that was good.

I am not sure what the protocol model was called when I first
learnt how different protocols worked over different media. 
To be honest, I don't think it had a name, we learnt how serial,
ethernet, token ring and a number of different bus technologies
worked then we learnt about Dec LAT, XNS, IP, IPX and some 
others. The only one I work with now is IP but when I worked
for Xerox I dealt with all of them but mostly XNS. It has been
10 years since I have used anything but IP and bit of EtherTalk.
I have complete left out all the non ethernet protocols.

PS I found a Vampire Tap Kit a few months ago cleaning out an 
old desk. The "youths" I work with had no idea what it was, 
and when I told them how it was used, they thought I was joking.
I also found an AUI cable, and showed them how networking 
old school was done with a couple of Cisco 2500's without using 
any transceivers. The had no idea that you could network 
machines together over ethernet with out using RJ45 patch 
cables. They thought I was tricking them and using a serial 
cable.




[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]