The lite modes are proprietary of Realtek and works with half speed using just 2 pairs of the cable.
So
1G lite = 500Mb/s
5G lite = 2.5Gb/s
I never see a card in 2.5G lite mode ...
Well ...
Security overhead will be significant if the cpu is very old. sftp is mostly single threaded.
Did you verify if the 40gb/s cards are operating in gen3 x8 ( 63Gb/s available ). All less than that will limit at 28Gb/s ( x4 ) or 15Gb/s ( xc2 ). Operating at gen2 is even worse since the...
Great explain ...
2 questions:
1 - BCM57810 is gen2 ( I never see any gen3 57810 ) in 10Gbase-t or sfp+
QLE3442 is gen3
Will thuis crossflash activate gen3 in BCM57810 ?
2 - I already used BCM578109 and QLE3442 ( sfp+ ) with great results in 2.5Gb/s with a DFP-34X-3C3 xpon . Using a...
Try Solarflare SFN7122F. It's dual port gen3 x4. If one port is enough x2 must work. Just 5.9W of power consumption..
https://www.ebay.com/itm/125196769193
Another option is based on BCM57840 pcie gen3 x4 but using much more power ( like 10W ). Stable with good support ...
Another config to look ...
If you insert a nic in a slot with enumerate lower than the nic already installed the name of thje interfaces can change.
Example: I have an 10Gb AQC107 NIC that the system enumerate as en50s0f0. If I insert another card in a pcie, tthe AQC107 changes to enp51s0f0 ...
Some hints to verify ...
The Connectx3 MCX354A-FCBT 40gig VPI must be in ethernet mode, not in infiniband mode. Cards in Infiniband mode doesn't show in ifconfig.You need infiniband-diags ( ibstawt , ibstatus )
qsfp ok ->...
No.
DAC = direct attach cable ( passive )
AOC =[ Active optical cable ( active )
The SFP+ to RJ45 is "Active" but using a copper interface instead of optical.
The SFP+ to RJ45 is more like the AOC cable.
Looking at the query:
- The card have 2 ports and is a Connectx-3 NON pro. Doesn't have any vpi references in settings and GUIDs are invalid.
- even being a connectx-3 non pro, the configs looks missing some keys from the last versions. I sugest you to reset the configs using mlxconfig...
I used type B cable with this transceiver.
https://www.ebay.com/itm/115505386250
with " 3M MPO Cable 12 Fiber OM3 Type B MPO-MPO Famale Multimode 3mm Fiber Patch Cord " ...
I bought one card and is exactly what I guess. 4x RTL8125b and 1 asmedia pcie bridge chip.
33:00.0 PCI bridge: ASMedia Technology Inc. Device 1806 (rev 01)
34:00.0 PCI bridge: ASMedia Technology Inc. Device 1806 (rev 01)
34:02.0 PCI bridge: ASMedia Technology Inc. Device 1806 (rev 01)
34:06.0...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.