Hello,
I snapped a bunch of cisco transceivers and in the package were also some 8GB SFP. I know that the SFP+ modules are used in ethernet and the 8G SFPs are used in FC/SAN-Networks. Since I just wanted the other transceivers I have left the 8GB ones for three days just in box.
Since they looked so similar I was thinking to test them in my Gnodal switch but I was pretty sure that they will not work (Because they are different and also they are using a different encoding). So I changed one finsar transceiver with on 8GB SFP and the link was going up?!?! Tested them with iperf and everything was nearly the same like the SFP+ transceiver before (I think they were a bit slower something like 9.6 vs 9.9 Gbit). Then I also changed the transceiver on the network adapter so it was then 8GB - 8GB and the switch turned the light to red so I think this way was not working.
Because I got the combination 8G SFP (Switch) --> 10G SFP+ (Network Adapter) working I was thinking what the real differences between this adapters are or also why I can use 8G SFPs in combination with 10G SFP+ without any problems? There are bunch of 8G SFP for arround 1 dollar per piece and they are really cheap compared to the 10G ones.
I snapped a bunch of cisco transceivers and in the package were also some 8GB SFP. I know that the SFP+ modules are used in ethernet and the 8G SFPs are used in FC/SAN-Networks. Since I just wanted the other transceivers I have left the 8GB ones for three days just in box.
Since they looked so similar I was thinking to test them in my Gnodal switch but I was pretty sure that they will not work (Because they are different and also they are using a different encoding). So I changed one finsar transceiver with on 8GB SFP and the link was going up?!?! Tested them with iperf and everything was nearly the same like the SFP+ transceiver before (I think they were a bit slower something like 9.6 vs 9.9 Gbit). Then I also changed the transceiver on the network adapter so it was then 8GB - 8GB and the switch turned the light to red so I think this way was not working.
Because I got the combination 8G SFP (Switch) --> 10G SFP+ (Network Adapter) working I was thinking what the real differences between this adapters are or also why I can use 8G SFPs in combination with 10G SFP+ without any problems? There are bunch of 8G SFP for arround 1 dollar per piece and they are really cheap compared to the 10G ones.