[vcf-midatlantic] Greenbar printout DONE!

Neil Cherry ncherry at linuxha.com
Mon Mar 1 12:23:14 UTC 2021

On 3/1/21 12:05 AM, Dave McGuire via vcf-midatlantic wrote:
> On 2/28/21 11:57 PM, Neil Cherry wrote:
>>>    Big ink-jet printers being called "plotters" never irked me quite as much as "broadband", but it's still wrong, and my 
>>> terminologically-obsessive brain just goes into involuntary "NO THAT'S WRONG YOU MORON!" seizures when I hear it.
>> I took a course on networking (having worked in networking for about 20 years at that point) and
>> the course described switching hubs as routing packets. I went a bit nuts on the professor for
>> the double whammie (it was on a test).
>    The guy did that to you on a test?!  Wow what a dick.
>    Yep.  Someone who doesn't know any better could be forgiven for thinking that switches "route" packets to the appropriate port, 

Switches switch frames. I couldn't bare to bring myself to replace switch with "route". Not after
arguing with a CCIE about OSPF exchanging routing information. At least he got up to ARP correct.

> which they do.  But, we draw a distinction between routing and switching, because they happen at different layers of the dip.
>    Just like someone could be forgiven for thinking "broadband" is "bandwidth that is broad" and thus has something to do with 
> transmission speed.
>    But, in my lifelong study of becoming the absolute best a**hole that a man can be, I forgive neither. ;)

Routers route packets (L3), although they can switch packets now, which is a bit disconcerting but
technical correct.

Switches switch frames (L2).

Frames contain packets.

Let's skip vlans for now. they just make my brain ache more. ;-)

When talking* (hehe) network engineering, being this pedantic is a requirement.

* - Sorry, about the poor English. It was meant as humor. But many of engineering
discussions bordered on text book bad English while arguing about correct terminology.

Linux Home Automation         Neil Cherry       ncherry at linuxha.com
http://www.linuxha.com/                         Main site
http://linuxha.blogspot.com/                    My HA Blog
Author of:    	Linux Smart Homes For Dummies

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