2.5gb SFP ports not working on BPi RP3

Installing and Using OpenWrt
1

Hey all, I'm a bit of a networking noob, but I have my BPi-R3 OpenWRT router running and serving my network. I have 2.5gb ATT fiber, so I bought some 2.5gb SFP Ports from 10gtek to start upgrading the speed of the ethernet.

However, when I plug in the WAN and LAN, it doesn't work. I can't even reconnect to the WRT.

Whats weird, is when I was setting up the router initially, I was using my current network as a WAN with my PC as the only client and it worked.

I am not sure why it won't work for the whole network.

Did I buy the wrong ports, or where might I start troubleshooting this? Thank you.

2

Some are compatibele few are not. If you dont provide any details how we are supposed to help?

3

Apologies, I'm not sure what details to include. These are the ones I got though: https://a.co/d/3l97yQi

4

On forum.banana-pi.org someone wrote that this module works with his R3.

Since we don't know how your devices are connected (maybe a 2,5G switch?) and what you already did for troubleshooting, 3 things to begin with:

  1. Please show us your /etc/config/network.
  2. Connect to your R3 using ssh and run logtail -f.
  3. Connect only one SFP-module to your sfp2 and post the messages logread will show.

Depending on these information, we might be able to help you.

1 Like
5

Thanks for this, since it needed doing anyway, I upgraded my switch to a 2.5gb one, and that fixed the issues. Apparently those modules won't do 1gb transfer rate.

6

That's right, the ASF-2G-T that you bought can only do 2.5G.
The ASF-2G2-T i linked to can do both 1G and 2.5G.

Nevertheless, it doesn't make much sense to increase the WAN speed to 2.5G when your LAN is still at 1G.

Which switch did you buy?

7

Well the idea was to upgrade as I had the budget, and I started with the router. It also wouldn't have made sense to get a 2.5gb switch without the modules I guess either. :grinning_face_with_smiling_eyes:

I ended up with an 8 port TP-Link

8

Well, at least you'd have a faster connection between all the devices connected to the switch (given that all those devices have got 2.5GB-capable ethernet interfaces).

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