cross-posted from: https://aussie.zone/post/2534398
The 10GBase-LR is 1310nm and the QSFP-40G-LR4 CWDM channels are 1271, 1291, 1311 and 1331 nm. Are the 1310nm and 3rd channel 1311nm technically compatible?
I have a 10Gb and (will eventually have) a 40Gb switch both fitted with basic LR (Q)SFP+ transceivers and want to know if I can directly connect them or will I have to use an adapter to fit an SFP+ in an QSFP+ port?
I'm looking at using the XQX2502 QSFP+.
EDIT: The goal of this exercise is I’m trying to work out if I can make an easily interoperable system where a singlemode fiber wall jack fed from a 40G switch can act as a both a 10G or 40G port as needed.
Fuck Electron. I hate that current trend. I like my long battery life and being able to run more than 3 applications on my MacBook Pro.
I will always use the example of how I subscribed to Spotify for a couple months back in 2015 and realized that the app constantly sat at the top of the Using Significant Energy list on my mac and was the reason the fan was so loud. I switched away to Apple Music for that sole reason. iTunes by comparison was very power efficient. It plays music for gods sake. How can you fail at playing music that badly.