2.5Gb Fiber Between L009 & CRS305-1G-4S+IN?

RouterOS
1

Hi,

I have L009 and wish to use SFP cage as an uplink to a CRS305-1G-4S+IN. I see on the compatibility page MikroTik wired interface compatibility - RouterOS - MikroTik Documentation these statement:

  • CRS3xx series switches - All SFP+ interfaces can be used in 2.5G mode if required
  • L009 series - SFP interface can be used in 2.5G mode if required.

What it doesn’t say is which SFP are required? Do I install dedicated 2.5Gb SFP or do I install 10Gb SFP+ and configure for 2.5Gb using the CLI command

/interface ethernet set sfp-sfpplus1 auto-negotiation=no speed=10G-baseSR-LR sfp-rate-select=low

Thanks

Adi

2

Following since I have a similar problem with L009 and CSS318 ( but ethernet, not fiber).

SFP+ does not work in L009, that I already know.
I also have fs.com 2.5gb base-t sfp module which does NOT work in.L009 but it DOES work in Hex S 2025. Same ROS 7.21rc1 was used.

3

If the interface can negociate at 1, 2.5, 5, 10 ; the real speed will depend of SFP capabilty.

4

It would be good to know which SFP have been tested to be known to work. And likewise, when the other end is a SFP+ port, which SFP supports the 2.5Gb on the SFP+ side. I don't expect Mikrotik to supply a 3rd party vendor support list, but having information on supported Mikrotik SFP and speeds would be good.

I found it on the same page I already mentioned. MikroTik wired interface compatibility - RouterOS - MikroTik Documentation

In the 10G SFP+/25G SFP28 category it shows L009 supporting all, except S+RJ10, with footnote

  1. L009, L22/mANTBox ax 15s, L23/NetMetal ax, FTC21 - supports up to 2.5G rate (works with forced speed setting).