DELL SFP+ DAC cable compatibility
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Hello,
I purchased two Netgate appliances 8200 that I want to connect with two switches Dell N5048F using the Dell SFP+ DAC cables (SFP+ 1M Dell Twinax V250M).
Is this cable compatible with the applicance?Thank you.
Regards. -
@sytec said in DELL SFP+ DAC cable compatibility:
Hello,
I purchased two Netgate appliances 8200 that I want to connect with two switches Dell N5048F using the Dell SFP+ DAC cables (SFP+ 1M Dell Twinax V250M).
Is this cable compatible with the applicance?Thank you.
Regards.Officially no. The builtin 10Gbe SFP+ cage does not officially support DACs or RJ45 SFP+ trancievers.
However - it all depends on how that DAC cable “presents” itself to the OS. If it says it’s a LR or SR tranciever it will very likely work without issue. There are several examples of both DAC and RJ45 SFP+ trancievers that works just fine even though they are not supported. -
@keyser said in DELL SFP+ DAC cable compatibility:
@sytec said in DELL SFP+ DAC cable compatibility:
Hello,
I purchased two Netgate appliances 8200 that I want to connect with two switches Dell N5048F using the Dell SFP+ DAC cables (SFP+ 1M Dell Twinax V250M).
Is this cable compatible with the applicance?Thank you.
Regards.Officially no. The builtin 10Gbe SFP+ cage does not officially support DACs or RJ45 SFP+ trancievers.
However - it all depends on how that DAC cable “presents” itself to the OS. If it says it’s a LR or SR tranciever it will very likely work without issue. There are several examples of both DAC and RJ45 SFP+ trancievers that works just fine even though they are not supported.Hello,
thank you for your promptly reply.
Ok, if the DAC doesn't work I could use a Dell transceiver like this SFP+ 10Gb SR LC Dell AFBR-709SMZ-FT1 WTRD1?Thank you.
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@sytec Yes, that will very very likely work as expected.
The thing is that SFP/SFP+ trancievers are not a 100% “wellknown size”. There are trancievers out there with funny firmwares that can cause issues. But unlike the big networking vendors, pfSense does not restrict which models/vendors of SR/LR trancievers it supports, so any vendors tranciever that complies with the SFP+ specs and firmware requirements should just work. -
@keyser said in DELL SFP+ DAC cable compatibility:
Yes, that will very very likely work as expected.
The thing is that SFP/SFP+ trancievers are not a 100% “wellknown size”. There are trancievers out there with funny firmwares that can cause issues. But unlike the big networking vendors, pfSense does not restrict which models/vendors of SR/LR trancievers it supports, so any vendors tranciever that complies with the SFP+ specs and firmware requirements should just work.Thank you.
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Most DAC cables are expected to work in the 8200. It's specifically RJ-45 SFP modules that are not supported; though some do work it's unpredictable.
Generally though if you can use fiber do so.
Steve
