I had quite an eclectic collection of DAC cables and tried most of them. There is a clear pattern:I wonder if they will ever support more DAC's or is it by design
Also, I read somewhere that there are people who had working with x520-t2. I believe that people who have x540-t2 or x550 cards are still having issue with this switch.So; with the most recent firmware update - I'm now in pretty good shape! My Intel (copper) 10gbe cards (x520-t2) are talking at 10gbps successfully.
Woohoo. Guess they really are out of beta!
Mine has been running great with an X540-T1 and an X540-T2 (both are Chinese cards from Amazon/eBay) for a few weeks.Also, I read somewhere that there are people who had working with x520-t2. I believe that people who have x540-t2 or x550 cards are still having issue with this switch.
Agree. This switch is super picky.I had quite an eclectic collection of DAC cables and tried most of them. There is a clear pattern:
- Passive DACs of 0.5M or 1M almost all work.
- Passive DACs over 1M almost all fail
- Active DACs are hit and miss, much like SFP Optics
I draw the conclusion that the line driver on their interface cannot supply enough current to support passive DACs over 1M. If that is true then no - they are not likely to be able to fix this with later firmware.
Same here. On the switch side, I have Ubiquiti and Arista SFP+, and on the NIC side I've got Cisco, Extreme, Intel, Mellanox, and some unidentified modules, plugged into X520-DA2, a bunch of Connectx-2, and a Chelsio s320.I am so excited I was able to pick up one of these guys. I had to buy new DAC's and SFP+ to get it going, but honestly at this price it's no big deal for my small needs.
Cisco SFP-H10GB-CU3M DAC - not working
Intel FTLX8571D3BCV-IT SFP+ - not working
I picked up the following gear:
Arista CAB-SFP-SFP-2M DAC
JUNIPER SPP5200SR-J6-M SFP+
Arista SFP-10G-SRL SFP+
All of the new gear worked without any issues. Also contrary to what mrseth1 said I mixed all of my SFP+ modules, not one pair is from the same vendor and it seems to be working fine for me.
please be aware that ubiquiti have pulled all 5.5.x controller versions due to memory leaks.So use the manual update procedure to update to the wanted firmware.
I have been running 5.5.0 for some time now, and found to run very well and stable in my env.
Waiting for the next 5.5.x as 5.5.1 does have some troublesome issues