Port mirroring on a HPE 1920-24G-PoE+ wont work

[mrks]

Hi there,

due to a tricky wifi problem I have to dump the traffic out, which passed the core switch (HPE 1920-24G-PoE+) to the router. 

To do so, I added a "Mirroring Group ID" and added the uplink port to the router (GE1/0/24) as "Monitor Port" and set a  "Mirror Port" (GE1/0/23) too. You might have a look at the screenshot https://ibb.co/5vtb0Pr.

But if I attach my laptop to GE1/0/23 and start wireshark, I only see ARP and upnp broadcasts. No TCP or UDP traffic. Thats very weird.

Additional info:

Swtich is running software version 5.20.99 Release 1121

Any ideas are welcome!

[mrks · Accepted solution]

Shame on me! 

I was on the wrong trip. "Mirror Port" is the source and "Monitor Port" is the port, where the traffic is mirrored to.

After I switched both ports, the problem is solved.