Hey,
So a couple of months ago I bought a Mellanox CX556A-EDAM (Yes, EDAM, not EDAT)
However; I'm having some issues with it now. When connecting it to another ConnectX-5 with 100GBase-CWDM4 transceivers, the EDAM claims to establish a link, but the other end does not.
And when I try to read the transceiver with
...which is obviously nonsense
I have tried the following things:
Interestingly, flint query shows the following:
MT_0000000009 is a standard CX556A-EDAT...
Also, the card does not have VPD!
Any ideas?
So a couple of months ago I bought a Mellanox CX556A-EDAM (Yes, EDAM, not EDAT)
However; I'm having some issues with it now. When connecting it to another ConnectX-5 with 100GBase-CWDM4 transceivers, the EDAM claims to establish a link, but the other end does not.
And when I try to read the transceiver with
ethtool -m, I get the following output:
Code:
sudo ethtool -m enp78s0f0
Identifier : 0x11 (QSFP28)
Extended identifier : 0x07
Extended identifier description : 1.5W max. Power consumption
Extended identifier description : No CDR in TX, CDR present in RX
Extended identifier description : 5.0W max. Power consumption, High Power Class (> 3.5 W) not enabled
Connector : 0x00 (unknown or unspecified)
Transceiver codes : 0x0f 0x00 0x0f 0x00 0x00 0x00 0x55 0x55
Transceiver type : 40G Ethernet: 40G Base-CR4
Transceiver type : 40G Ethernet: 40G Base-SR4
Transceiver type : 40G Ethernet: 40G Base-LR4
Transceiver type : 40G Ethernet: 40G Active Cable (XLPPI)
Transceiver type : FC: Twisted Pair (TP)
Transceiver type : FC: Video Coax (TV)
Transceiver type : FC: Multimode, 50m (M5)
Transceiver type : FC: Single Mode (SM)
Transceiver type : FC: 800 MBytes/sec
Transceiver type : FC: 400 MBytes/sec
Transceiver type : FC: 200 MBytes/sec
Transceiver type : FC: 100 MBytes/sec
Encoding : 0x00 (unspecified)
BR, Nominal : 0Mbps
Rate identifier : 0x00
Length (SMF,km) : 0km
Length (OM3 50um) : 0m
Length (OM2 50um) : 0m
Length (OM1 62.5um) : 0m
Length (Copper or Active cable) : 0m
Transmitter technology : 0x00 (850 nm VCSEL)
Laser wavelength : 1654.600nm
Laser wavelength tolerance : 0.000nm
Vendor name : __$/___D________
Vendor OUI : 0f:00:00
Vendor PN : _UU___________$/
Vendor rev : __
Vendor SN : _____UU_________
Date code : __$/___DI have tried the following things:
- Flash a stock CX556A-EDAT firmware (16.31.1014)
- Reflash the firmware it came with (16.98.3042)
- Force the link to PCIe3.0
Interestingly, flint query shows the following:
Code:
PSID: MT_0000000078
Orig PSID: MT_0000000009Also, the card does not have VPD!
Any ideas?