NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Solved
SFP+ slots do not work at 1GE on GS728TXS
According to its specification the Netgear GS728TXS switch supports optical signals with line rates of 1GE or 10GE on ports xg25..xg28. All works fine for 10GE optical signals with SFP+ (single rate 1...
Hi John,
thanks a lot for your assistance. I now successfully made it work. It was a combination of several things:
-- Some of my SFPs (although compliant to 1000BaseSX/LX) are not working in the GS728TXS for whatever reason-- The dual rate SFP+s are always used at 10GE and the GS728 obviously cannot be configured to use them at 1GE
-- The optical RX power sometimes was accidentally in the overload region.
==> Would have been very helpful if the GS728 Web GUI (e.g. in the switching ports list) showed the RX level
of the plugged in SFP or even other information contained in the SFP-internal EEPROM or at least
LOS/Overload status.
In conclusion this is the "Accepted Solution".Thanks again for your help
Kind regards
Switchfox
Hi switchfox,
Welcome to the community!
Smart switches will automatically detect if it is a 1G/10G speed. It will still be depending on the module that you are using. May I know what SFP module are you using?
Regards,
Hi John,
thanks for taking care of my question. Find below a selection of transceivers I used with GS728TXS
-- Finisar, FTLX1472M3BCL, SFP+, 9.95 to 11.3Gb/s, 10GBASE-LR/-LW ==> works
-- Lumentum, PLRXPL-Sx-S43-22-N, SFP+, 10.312 Gb/s, 10GBASE-LR/LW ==> works
-- Finisar, FTLX1471D3BCV, SFP+(dual rate), 1.25 Gb/s or 9.95 to 10.3 Gb/s, 1000BASE-LX & 10GBASE-LR/LW ==> works at 10GE but does not work at 1GE
-- Lumentum JSH-42L4DD1, SFP, 1.06 to 4.25GB/s, 1000BASE-LX ==> does not work
-- Lumentum, PLRXPL-VE-SG4-38, SFP, 1.06 to 4.25GB/s, 1000BASE-SX ==> does not workCould you provide some part numbers of SFP/SFP+ that are known to be working?
Are there special setting in the SFP EEPROM settings (SFF-8472) that are required?
Kind regards
Switchfox
I would like to have a follow up on this thread. Please let us know if you still need further assistance and just in case that the reply would be the answer to your issue. I encourage you to mark the appropriate reply as the “Accepted Solution” so others can be confident in benefiting from the solution. The NETGEAR Community looks forward to hearing from you and being a helpful resource in the future!
Regards,
Hi John,
thanks a lot for your assistance. I now successfully made it work. It was a combination of several things:
-- Some of my SFPs (although compliant to 1000BaseSX/LX) are not working in the GS728TXS for whatever reason-- The dual rate SFP+s are always used at 10GE and the GS728 obviously cannot be configured to use them at 1GE
-- The optical RX power sometimes was accidentally in the overload region.
==> Would have been very helpful if the GS728 Web GUI (e.g. in the switching ports list) showed the RX level
of the plugged in SFP or even other information contained in the SFP-internal EEPROM or at least
LOS/Overload status.
In conclusion this is the "Accepted Solution".Thanks again for your help
Kind regards
Switchfox
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
