[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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