Rack rails on network equipment

Sat Sep 25 11:53:57 UTC 2021

----- On Sep 24, 2021, at 11:19 AM, William Herrin bill at herrin.us wrote:

Hi,

> Seriously, the physical build of network equipment is not entirely
> competent.

Except, sometimes there is little choice. Look at 400G QSFP-DD for
example. Those optics can generate up to 20 watts of heat that needs
to be dissipated. For 800G that can go up to 25 watts.

That makes back-to-front cooling, as some people demand, very
challenging, if not impossible.

Thanks,

Sabri