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Forum Discussion
xr700 cannot find Internet through SFP+ port
Hi all, I have recently purchased an XR700 router in the hope of being able to switch the router from the provider. According to my provider I am allowed to use my own router as long as I can con...
schumaku, I have seen various posts about this - as you quoted - "old Swisscom confusion", but I could not put it together. The too many wavelengths confused me big time. Thank you for the detailed explanation.
So, if I understand correctly, the Siligence module has compatibility issues, and as such I just need another module that works on Tx1310nm/Rx1490nm, and I should be good to go. Do I also understand correctly that the Netgear routers are - and the xr700 in this case is neither - picky about the module we put in? That is, I can use any module that is following the standards and is using the Rx/Tx wavelengths matching with the module from the provider? Also, it does not matter if the router has a 10G port, but I put in a 1G module, does it? I have not found a setting in the DumaOS to scale it down to 1G.
DOGGAVELI, Thank you for your answer as well. I'm a bit confused, however why would I need to use the "DAC mode only" option? I thought DAC means copper only. Of course I'll try that out, I'm just curious why that would be the option to choose?
CydTulkasIt's the only way the 10G will work mate.
I don't know why as in the XR700 manual it says u plug the SFG plug in and it should work but never does. I know many ppl with all types of different setups and connections and this was the ony way it worked for all of us.
Kind Regards,
Dogga
DOGGAVELI interesting idea.
Had run several tests on the R9000 SFP+ in the early days of the router. Various SFP+ (duplex fiber, RJ45) and SFP (duplex fiber), as well as DAC worked like a charm. As the SFP+ WAN feature became available, the SFP BiDi module I had at hand back then (not taken any notes) was recognized, the Internet connection came up.
Quickly retested last night with the spare module (same as yours, in Auto and DAC mode) - the log did not show any indication that the module was plugged, and as expected it was not recognized (no module or no link message). Cross check with an SFP+ RJ45 10G copper - logs in place, WAN port recognized.
The base firmware of the R9000 and the XR700 are very similar, hardware anyway btw.
schumaku, did you make a test with a 1G module? If you did not, do you have the option to try it? I am getting the feeling that SFP+ 10G slot does not work well with an SFP 1G module. Thanks!
Hi all,
Merry pre-holidays to everyone. Not "happy" though, because I've made some further testing, and the results are not good. :(
So the router that SwissCom provided has a nice feature that it displays the status of the SFP module and the connection link.
This is how the original Siligence module (Tx1310/Rx1490)looks like:
Siligence
I've tried with a compatible GLC-BX-U-C (Tx1310/Rx1490) module, and - as expected - it works like a charm:
I have also tried with some other compatible modules. No screenshot, but all of them came up without problem.
Out of curiosity, I've also tried with a GLC-1000BX-U (Tx1310/Rx1550nm) module and to my surprise the connection was built up without problem. This means that the counterpart is a dual module. So the "old SwissCom confusion" is busted, one can use both modules, I guess. I take this might not be true with every connection, but for me it definitely worked.
BUT... None of these modules work in the xr700 router. It doesn't matter if it is in "Auto" or "DAC only mode" Unfortunately the router's OS does not have such a nice status page, and the logs do not help either. It only keeps saying, no module is found. This gives me the feeling that the SFP+ slot does not support modules on 1G.
Did you schumaku, or DOGGAVELI, or anyone else have success making it work with a fiber module that is 1G? If yes what module did you test with?
Alternatively, is there a way to force the SFP+ port to talk 1G only? Netduma-Fraser, maybe you have more insights into this? If it is not available currently, do you know if it is in the works? Maybe could it be put on the feature request list? Maybe with a nice status page like the one above? It would help a lot with troubleshooting.
Thank you all.
Cyd
PS.: I have no idea why the pictures do not appear correctly, they appear nice in my Public album.
