Fiber stats

Products ePMP
1

On the ePMP 4500 and 4600 fiber ports, is there a way to see the dBm signal from the switch?

2

Yeah, assuming you’re running a newer firmware revision, like 5.11, you can see this under Monitor → Network

image
image1023×1009 46.9 KB

3

Yes but these numbers seem to be the same on every radio. No variation

4

I checked 3 e4k radios, and the numbers are all different.

image
image490×154 6.55 KB

image
image506×147 6.64 KB

image
image492×181 8.11 KB

5

On my radios I’m seeing exactly what you have on the 3rd image. 2.65mW / 2.97mW.

What version are you running and are these 4500 or 4600?

I wonder if this is an issue with ePMP 4600?

Support, can you check if this is a bug?

6

I checked both e4k 5 and 6GHz AP’s. What firmware are you running?

You can file a support ticket here: https://support.cambiumnetworks.com/

7

A mix of firmware unfortunately. 5.10.1 as well as 5.11.1

All 4600 AP’s

8

We will review this and get back to you shortly.
Thank you.

9

Martin, what SFP modules do you use?
Thanks

10

cambium 10g sm units.

11

Thank you.
I can confirm the issue with the Cambium 10G SR SFP modules, and we are actively working on a fix.

The behavior appears to depend on the SFP+ module type and manufacturer.

Could you provide more details about your intended setup and what you are trying to achieve? We may be able to suggest a workaround while the issue is being addressed.

Thanks

12

Typical deployment is a cluster of (6) ePMP 4600 AP’s or 4500. Fiber to each radio using the Cambium SFP+ modules.

The issue we are having is diagnosing fiber problems. We have stats from the switches but can’t see stats on the radios. 1 tower specially had a bad multi-pair fiber run and it took a long time to figure out where the problem was.

13

Martin, thank you for the explanation.
Let me review the details internally and see whether we can suggest a viable workaround. I’ll get back to you as soon as I have an update.

Thank you.