Sure, It was so bad that I forgot thisCan you link the original post please?
Sure, It was so bad that I forgot thisCan you link the original post please?
The 100Gb port supports 40Gb speed, you can plug in directly. It also has 2 10Gb ports, I use them to connect to ICX.May I ask you if you have faced this issue? Let's say I want to link older X710-DA4 4xSFP+ card to this Arista, what's my best option?
Should I set it to 40G and may use:
Intel Intel® Ethernet QSFP+ Breakout Cable X4DACBL3 920347 606760003 QSFP+ to (4) SFP+ Direct Attach
Or it's not gonna work from switch side and I need:
Intel Intel® Ethernet QSFP28 to SFP28 Twinaxial Breakout XXV4DACBL2M 952303 NDAQGF-I202 100GbE/4x25GbE/4x10GbE Direct Attach
But set port as 4x25G operating in 4x10G mode, will it be accepted by NIC? As 100G breakout isn't listed in Intel® Product Compatibility Tool for X710-DA4, but for 2x25G XXV710-DA1/DA2
And what about single 40G XL710-QDA1 - will it work with regular QSFP twinax?
P.S. We're close to stick even with MikroTik due to it's baldness and three times lower price for a new one, as technically it's more than enough for our case, yet a bit afraid of newness and no positive feedback from Mtik course trainers
You might need to consider link aggregation, And theoretically, Your way of connection would work well.May I ask you if you have faced this issue? Let's say I want to link older X710-DA4 4xSFP+ card to this Arista, what's my best option?
Should I set it to 40G and may use:
Intel Intel® Ethernet QSFP+ Breakout Cable X4DACBL3 920347 606760003 QSFP+ to (4) SFP+ Direct Attach
Or it's not gonna work from switch side and I need:
Intel Intel® Ethernet QSFP28 to SFP28 Twinaxial Breakout XXV4DACBL2M 952303 NDAQGF-I202 100GbE/4x25GbE/4x10GbE Direct Attach
But set port as 4x25G operating in 4x10G mode, will it be accepted by NIC? As 100G breakout isn't listed in Intel® Product Compatibility Tool for X710-DA4, but for 2x25G XXV710-DA1/DA2
And what about single 40G XL710-QDA1 - will it work with regular QSFP twinax?
P.S. We're close to stick even with MikroTik due to it's baldness and three times lower price for a new one, as technically it's more than enough for our case, yet a bit afraid of newness and no positive feedback from Mtik course trainers
Yes, these ports are for LAGs. But maybe that's the point when it's easier to get rid of 10G links at all and forget about all the possible incompatibilityYou might need to consider link aggregation, And theoretically, Your way of connection would work well.
But there still be some incompatibility problems as some eeprom in DAC/AOC that are used to negotiate link speed are fixed at a certain speed. For example, If the cable mention above is a 40G to 40G DAC,it just can't run 10G or 100G even if you're have set up in switches or NICs.
So if you're NICs are 10G, You'd better choose a 40G Breakout cable.
is there some tutorial for deploy ceph with rdma ? I have meet something wrong in deployingTo be honest, there is no way to use up those HIGHEND speed without rdma.
What XFP are you talking about ?Thanks, but probably it's too exotic beast, XFP and too few of these