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Client side ports in CUBE: how many are open during a connection to a DMA?

Solved173.38K views27th September 2024adl2099 client ports eventing netstat
6
Alberto De Luca [DevOps Enabler]4.58K 17th February 2023 4 Comments

Please, Dojo - I'm trying to detail the exact behaviour of a CUBE client connecting to a DMA via
.NET-Remoting>Eventing (this to facilitate FW configs).

On connection to a DMA, I seem to get at least one connection established, however the client switches to polling mode.

The output of a netstat on the client would show something like this:

It seems the ports in the "high port range"  (49152 through 65535) are allowed on the client - the connection is actually "ESTABLISHED" to port 8004 of the server - via client port 51134, but then why the client has a second connection open in "TIME WAIT" and eventually switches to polling?

Is more than one port required on the client for eventing?

Or could the server be configured to use polling regardless of the connection successfully established between client port 51134 and server port 8004?

Cube settings for the above test were like this:

Any steer will be helpful

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 27th September 2024
Marieke Goethals [SLC] [DevOps Catalyst] commented 7th July 2023

Hi Alberto,
I see that this question has been inactive for some time. Have you found a solution for this yet? If yes, could you share some more information about this, and select the best answer (using the ✓ icon)? If not, you can also contact techsupport@skyline.be for assistance.

Alberto De Luca [DevOps Enabler] commented 26th July 2023

Need to resume testing on this – I seem to have different numbers of connections depending on the environment – I will update the thread as soon as I gather some more data

Marieke Goethals [SLC] [DevOps Catalyst] commented 23rd August 2024

Hi Alberto,
I see that this question has been inactive for a long time. Do you still need more information about this? If not, could you select the best answer to indicate that no further action is needed here?

Marieke Goethals [SLC] [DevOps Catalyst] commented 27th September 2024

As this question has now been inactive for a very long time, I will close it. If you still want more information about this, could you post a new question?

8 Answers

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Alberto De Luca [DevOps Enabler]4.58K Posted 6th March 2023 0 Comments

Better screenshot hopefully:

Alberto De Luca [DevOps Enabler] Answered question 6th March 2023
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