Jyrki 

just got reminded of my favourite ​ Cisco Field Notice where using certain snagless ethernet cables would reset certain switches because the protective boot would press down on a button that will do exactly that

https://www.cisco.com/c/en/us/support/docs/field-notices/636/fn63697.html

Field Notice: FN - 63697 - Protective Boot on Certain Network Cables Might Push the Mode Button and Cause an Unexpected Reset on the 48-Port Models of Cisco Catalyst 3650 and 3850 Series Switches - Workaround Provided

Certain types of snagless Ethernet cables have protective boots that extend too far forward and above the plastic latching tab.When this type of cable is installed in Port 1 of any 48-port model of the Cisco Catalyst C3650 or C3850 Series switches, the boot might press and hold the Mode button, which invokes Express Setup and reboots the system. (Reference Figures 1 through 3 for illustrations of the issue.)Note: This type of boot-cable can partially obscure port LEDs, air vents, and USB ports.Figure 1. Problematic Cable before Complete InsertionFigure 2. Problematic Cable Completely InsertedFigure 3. Problematic Cable Completely Inserted (side view)

Cisco
Jul 10, 2022 at 11:17amWeb
Show threadNafeon the BearJul 10, 2022
@nilsding 'no design flaw on every end to see he, please continue your usual time line scrolling'
Show threadlizard appreciatorJul 10, 2022
@nilsding @Siph imagine being the person who discovers that flaw, what were they doing, what were they going through
Show threadEfi (nap pet) 🦊💤Jul 10, 2022
@nilsding oopsi
Show threadTrevor FlowersJul 10, 2022
@nilsding Dang, that designer really didn't do their job. 🤣
Show threadalarmingly large glaceon girl 🍓Jul 10, 2022
@nilsding to be fair these cables suck ass, i don't know anyone who doesn't rip the cover off
Show threadJRaccoonJul 10, 2022
@nilsding I have never fully understood what the function of the "protective boot" in ethernet cables is
Show threadEddie RoosenmaallenJul 10, 2022
@jakeRaccoon
When you pull the cable out of a snarled mess, the boot keeps the eject tab from getting hooked and broken off.
It's mostly a benefit for temporary quick & dirty installs where you expect to pull out & reuse the cables, I think - if you're installing big Cisco gear like that, you don't plan to get the cable back.
Show threadJacketJul 11, 2022
@nilsding i have so much design fixes that comes in my head. I can't believe they ship that.