@manxam said in Collision Domain - In POS: @scottalanmiller said in Collision Domain - In POS: @manxam said in Collision Domain - In POS: I can't recall ever seeing a switch "back in the day" that didn't have ASICs. There are a few newer switches that do, in fact, use CPU rather than ASICs, but they're built using MUCH faster CPUs than what are included in most -- if not all -- routers. Early days, the ASICs didn't even exist yet. It wasn't a choice, it was all that there was to use software. Then the ASICs came along and obviously dominated. But yes, it always requires throwing more hardware at it. How far back are we going here? My first experience with a switch was with Alantec/FORE ATMs (circa early 91/2). These had a RISC SCP processor to run the OS/management functions and custom ASICs for switching. After that, in the more mainstream, came Kalpana and then Cisco. To the best of my knowledge, there were no switches available prior to thicknet (first commercial ethernet). I'd love more information if you have it available. I love the history of tech. Not that far back, still 90s, but a lot of switches were all software in the middling to later 90s as the ASICs weren't broadly available. But even the very, very first ASICs were / are always based on working software prototypes. I've never seen a thicknet switch, what a freaking mess that must be.

I used to manage a Full Tolerance Infrastructure. 2 Devices of Everything (Routers, Firewalls, Edge Switches, Core Switches, Access Switches, etc) 2 Internet Providers 2 Private Circuits

Network Documentation is very very important, for Network Admins is a must, because for example a new team member joins, this information will be useful to acknowledge the network infrastructure.

I have experienced that T3 (DS3) collapses (saturates) once you reach 40 Mbps, even rate is up to 44 Mbps.

@Pete-S Very true, in IT temporary becamos forever... that is a LAW!!!

@scottalanmiller said in Copper Termination Standards - CompTIA Network+ N10-007 Prof. Messer: @jmoore said in Copper Termination Standards - CompTIA Network+ N10-007 Prof. Messer: @scottalanmiller said in Copper Termination Standards - CompTIA Network+ N10-007 Prof. Messer: But I'm literally 100% confident given your description, that you are perceiving it as people using "cell phones" to replace VoIP, and not realizing that it's standard VoIP softphones being deployed onto mobile computing devices that are often, but not required to be, cell phones. We have cisco everything and I was told it was too expensive to have softphones on our cell, we instead must have a separate cell phone. I doubt that, but who knows. And yet it wasn't too expensive to have Cisco... suspicious. yep, agree!

@melvinsilva said in Optical Fiber Connectors - CompTIA Network+ N10-007 Prof. Messer: @mary It depends on what you have, some Cisco Switches came with GBIC others (now in time) come with SPF. And now SFP+ (SPF is sunscreen levels, SFP/SFP+ are the adapters.)

@JaredBusch This type of cable Im refering to.

@JaredBusch said in Optical Fiber - CompTIA Network+ N10-007 Prof. Messer: The point was that it is cheaper to buy pre-terminated fiber in the lengths needed instead of buying fiber and getting it terminated. Not that does not apply universally. It does apply for most office buildings. Where he is, I have random conversations with people who are like "Oh yeah, I trenched across town myself." Things you never hear here. There is actually a lot of self termination, lol.

In one of the companies that I worked, they have an "Initial Test" for any Engenier; They ask you, Are you an Engenier?, then do a Patch cord, here are the tools, make 1 with B Standard. That is the way to show that you are a good engenier... jajaja

In network almost every core device (routers, switches and servers) may be NTP Master or Server. It depends on network design who will be the NTP Master, for me is the device which is "closest" to Internet.