Top N Ports Utilization doesn't show any data

[Cristek]

Hello,
I'm having a hard time understanding what I'm doing wrong and why I'm getting no data with this menu.

I tried with both SNMP v2 and v3 and:
sflow always works
network health always works (CPU, temp mem)
top apps and top clients and top poe utilization also all work just fine
IoT also displays just fine
AP information also works as expected

I know the issue is not with the switches because when I pool from my PRTG install I get the information I need (again, for both snmp v2 and v3).
OV2500 and the switches are all on the latest version (tested with 2360 and 6360 models).

Has anyone seen this before? Anything stupid I'm missing? We are not certified with ALE with OV2500 so I cant do a SR here.
This is mainly to decide if we move away from PRTG or not as PTRG has become stupidly expensive.
Any help and tips are very much appreciated! I'm sure its something stupid, but for the life of me I cant figure it out...

This is my config on all switches:

Code: Select all

aaa authentication snmp local
user OV2500 password xxxxxxxx read-write all sha+aes
snmp security privacy all
snmp station 192.168.41.25 162 OV2500 v3 enable
snmp authentication-trap enable
sflow receiver 1 name sflow-ov2500 address 192.168.41.25 udp-port 6343 packet-size 1400 version 5 timeout 0
sflow sampler 1 port 1/1/1-52 receiver 1 rate 256 sample-hdr-size 128
sflow poller 1 port 1/1/1-52 receiver 1 interval 60

[silvio]

Hi,
I have tested it years ago - but never with the 2x60er serie.
Your config is not the reason. Top N App and Clients use sFlow. But Top N ports uses snmp requests. All other is working - so your snmp settings are correct. You have created profiles for Top N ports - but do not see outputs.
I assume the reason is wrong mib files within omnivista for the 2x60. It is possible to test the same with an R8 switch like 6360? And you use the actual OV release (last week there was a new one)?
BR Silvio

[Cristek]

Hello Silvio,
The OV2500 is on the very latest release:

Alcatel-Lucent Enterprise OmniVista 2500 NMS 4.9R2 GA (Build 15, 04/10/2025)
© Copyright Alcatel-Lucent Enterprise USA, Inc., 1997
© Copyright ALE USA Inc., 2014, 2025

And also I am labbing this with a 2260, a 2360 and 2x 6360 models. And they are all on their latest versions as well and still not showing any data on this particular feature (the Top N Ports Utilization)
Image: https://ibb.co/s9Zrt8Hf


EDIT: the 2 unknown devices in this image are the PBX and the Firewall (ignore those, its just me labbing stuff)

[silvio]

I have created a new profile two days ago of some of our switches (6860). And I see data there now. It is not many because this is our test environment - but there is not only a line at the bottom.
BR Silvio

[Cristek]

I see...
I really dont know how I'm going to fix it then
So this data that is less than 1%. Can I configure this threshold? 1% of what exactly?
I can create a chart and see all the statistics I want to see (say the upload and download for the last X hours for a specific port) but Its weird I cant see anything there in the widgets.
Many thanks for reading and trying Silvio!

[silvio]

The TopN-Port chart from OV is not very nice. I can see something .... but I also had in my test environment not so much traffic in the last days.
Do you see in the "Trending View" on the right site the fife "top ports"? If you click with your mouse there can you see anything else than 0? At me there are small values at some ports.
In my opinion the TopN Ports are not helpfull. You only can see the ports with the most traffic. In the trending view you see only every 1 hour a change of the line if you have choosen 24h. If you choose 7 days interval than only one per day - not helpful.
I think that this outputs are in other tools like PRTG more clear.
BR Silvio

[Cristek]

Hi Silvio,
Those dashboards are always at zero, but I can get all the reports I need if I go into Analytics and then pick any of the menus there (top applications, clients, ports, heath, etc). Trending views are also always zero.
It's just annoying those dashboards never populate with info so I ended up deleting them from the main dashboard.
And yes, I'm very very experienced with PRTG so it's a bit weird so many of those awesome features are not as easy in OV, but hey, it's a learning process