Hello,
can I use any CWDM/DWDM SFP+ optics with the CRS317-1G-16S+RM? Which one would you recommend for 10km?
Regards
It depends, for non Mikrotik hardware, see supported hardware.
S+31DLC10D is the Mikrotik product for 10G - 10Km (single mode).
CRS317 hasn’t been included yet on Mikrotik SFP Compatibility Matrix, but being both Mikrotik products I bet it will support it.
Most sfp manufacturers and distributors provide samples.
Request a sample and test.
I have personally not come across any that do not work…
yeah, CWDM/DWDM SFP+ optics would not work for CRS317-1G-16S+RM. But you can use S+2332LC10D for 10G network connection. Bidirectional SFP+ 10G module kit. Kit contains two SFP+ modules that can be used as pair to achieve operating data rate up to 10Gbps for distances up to 10km on single optical cable.
As long as SFP/SFP+ modules are made for right standard and comply with SFP MSA they should be usable in our hardware. Please read product manual about compatibility with other manufacturer devices. CWDM/DWDM SFP+ optics should work in CRS317-1G-16S+RM.
Thank you!
mikrotik its aware of CDWM importance
Where do you get this updates ?
Thanks in advance!
CWDM-MUX8A: https://mikrotik.com/product/cwdm_mux8a
i have DWDM ER SFP+ working in there, but it also works with DWDM ZR optics:
[me@myswitch] /interface ethernet> monitor 16 once
name: sfp-sfpplus16
status: link-ok
auto-negotiation: done
rate: 10Gbps
full-duplex: yes
tx-flow-control: no
rx-flow-control: no
advertising:
link-partner-advertising:
sfp-module-present: yes
sfp-rx-loss: no
sfp-tx-fault: no
sfp-type: SFP-or-SFP+
sfp-connector-type: LC
sfp-link-length-9um: 40000m
sfp-vendor-name: RMC TEL
sfp-vendor-part-number: SFP+-DWDM-ER-C31
sfp-vendor-revision: A
sfp-vendor-serial: 1552.52-ERG3P011
sfp-manufacturing-date: 16-03-30
sfp-wavelength: 1552.52nm
sfp-temperature: 39C
sfp-supply-voltage: 3.29V
sfp-tx-bias-current: 54mA
sfp-tx-power: 1.828dBm
sfp-rx-power: -12.609dBm
eeprom-checksum: good
eeprom: 0000: 03 04 07 20 00 00 00 00 00 00 00 06 67 00 28 ff ... .... ....g.(.
0010: 00 00 00 41 52 4d 43 20 54 45 4c 20 20 20 20 20 ...ARMC TEL
0020: 20 20 20 20 00 00 00 00 53 46 50 2b 2d 44 57 44 .... SFP+-DWD
0030: 4d 2d 45 52 2d 43 33 31 41 20 20 20 06 10 34 fa M-ER-C31 A ..4.
0040: 00 1a 00 00 31 35 35 32 2e 35 32 2d 45 52 47 33 ....1552 .52-ERG3
0050: 50 30 31 31 31 36 30 33 33 30 20 20 68 f0 03 64 P0111603 30 h..d
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........
0080: 5a 00 f1 00 55 00 f6 00 8c a0 75 30 88 b8 77 24 Z...U... ..u0..w$
0090: ea 60 3a 98 d6 d8 44 5c c3 c7 13 94 9b 83 18 a6 .`:...D\ ........
00a0: 27 10 01 3c 18 a6 01 f5 3a 00 17 00 38 00 19 00 '..<.... :...8...
00b0: 27 10 d8 f0 27 10 d8 f0 00 00 00 00 00 00 00 00 '...'... ........
00c0: 00 00 00 00 3f 80 00 00 00 00 00 00 01 00 00 00 ....?... ........
00d0: 01 00 00 00 01 00 00 00 01 00 00 00 00 00 00 44 ........ .......D
00e0: 27 4f 80 8d 6a 7a 3b 85 02 de 2d 48 00 07 00 00 'O..jz;. ..-H....
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........ ........
Looks like Mikrotik now sell CWDM SFP/SFP+ - https://mikrotik.com/product/s_c47dlc10d
The FS.com 1310’s are listed as working on the wiki page, so I can’t see why the CWDM versions of those wouldn’t also work.
there would have been issues prior 6.31 to be honest. normal (gray) SFPs have different unit code than C/DWDM ones. so mikrotik devices couldn’t even detect them.
https://www.finisar.com/sites/default/files/resources/AN_2030_DDMI_for_SFP_Rev_E2.pdf - see page 5
regular SFP/SFP+ is 03h, whereas DWDM SFP is 0Bh.
i asked for this and the guys @ mikrotik nailed it in 2 weeks. v6.31rc16 was the 1st version to support them. then in the next rebuild they added full ddmi support to it.
and i talk about DWDM ones with 50 or 100GHz grid, not BiDir ones, that are commonly referred as “WDM” but in general are just 1310/1490 (or 1550)nm gray bidirectional xceivers.
well, you can also use OADMs, and just a single optical cable, so you can drop/add wavelengths on each pop. that is the fiber topology will be just a line or a ring, but you can have each node (or more) connected as star or dual-star logical topology. we do this since years, but we do it with DWDM, as you can get much more channels into it, say 40 instead of 8 or 12. but in general it is pretty much the same, full passive optical stuff. and everything is dirt cheap. and it is speed independent: you can have 1G/10G/(later 25 or 50G)/100G if you wish. albeit with 10G chromatic dispersion becomes a problem on 30+km distances.