How many stacking cables do i need to physically stack two MS250-48FP-HW switches?

[jhreed]

the SKU MA-CBL-40G-1M shows 2 ports on each end of the cable, which would tell me I would only use 1 stacking cable to connect 2 switches. is that correct?

[watdee]

My two, two switch stacks have been up for over a year after software upgrades and several reboots, still no issue in the dashboard. I don't mind adding a second cable to the switches that have the dedicated stack ports on the back just to be safe though.

However, I also have a pair of MS425-16 and if I use both the 40GB/s ports for stacking, then I lose the 40GB/S uplinks to my other building.

[watdee]

Just found some more info regarding other brands and stacking two switches with one cable. It sounds like it works fine just isn't recommended for redundancy reasons.

https://networkengineering.stackexchange.com/questions/62651/how-many-stack-cables-would-be-needed-if-we-want-to-stack-two-3850-switches

https://community.extremenetworks.com/extremeswitching-other-233226/how-many-stack-cables-for-two-switches-stack-6755077

https://community.cisco.com/t5/routing/number-of-stack-cables-for-two-3650/td-p/3179794

I'll probably end up using two cables to be on the safe side.