Connecting the srsRAN's containerized OSC RIC to ns-ORAN

[aliasadi2001]

Greetings all,

I'm seeking assistance in connecting the Containerized OSC RIC with ns-ORAN. Unfortunately, I'm encountering a hurdle as I'm unable to modify ns-ORAN's e2term destination port number, which currently stands at 36422, while the standard port for this connection is 36421. Moreover, the e2term container is set to use port 38000 for connecting to the gNBs. Could someone kindly guide me on how to reconfigure the e2term container to expose port 36422?

Regards

[pgawlowicz]

Set the port here: https://github.com/srsran/oran-sc-ric/blob/main/.env#L18 and rebuild docker images

[aliasadi2001]

Thank you for your response. Despite updating the port number as instructed and rebuilding the system, the connection issue persists.

This image indicate that the ns-ORAN request terminal operates on the IP address 10.0.2.10 with port 36422.

Additionally, this is information about the OSC RIC terminal and e2term after port number editing

According to the configuration files, it appears that the OSC RIC is configured to work on the same IP address, 10.0.2.10.

The most recent version of the Open RAN Gym relies on the bronze release of OSC RIC. My goal is to establish connection with this containerized RIC as an alternative, but so far, I haven't been successful.

I appreciate any assistance you can provide in troubleshooting this issue.

[pgawlowicz]

Check if any e2ap messages go over the bridge interface connecting ORAN RIC docker containers.

[aliasadi2001]

Hi

Upon reviewing the messages exchanged between bronze RIC and ns-ORAN, I've noticed that there are E2AP messages between them in SCTP format. You can view the screenshot of the conversation here.

Furthermore, after examining all messages in Wireshark, I've observed that there are no messages between I release OSC RIC and ns-ORAN either. It's worth noting that the I release utilizes E2AP V.3.0.0, whereas the bronze release employs E2AP V.1.0.0. Are E2AP versions backward compatible?

[pgawlowicz]

Which wireshark version do you use? You should have at least 4.0.7 or 4.1.0

[aliasadi2001]

I've upgraded my Wireshark to version 4.2.4, and I've captured a .pcap file while ns-ORAN and OSC RIC are running.
this is the capturing file in .csv format
ns-oran.csv
there are no sctp message to decode as E2AP.

[pgawlowicz]

In your previous wireshark screenshot there was a packet from IP 10.0.2.1 to 10.0.2.10 decoded as X2AP, I guess it was the E2AP communication.

[aliasadi2001]

Thank you .
However, based on these two screenshots, it appears that ns-ORAN is not connected to OSC RIC.

OSC RIC:

ns-ORAN :

[pgawlowicz]

Hmm, in the first pcap we have seen that there was a message from 10.0.2.1 (ns3) to 10.0.2.10 (e2term). Maybe, indeed, the bronze release is not compatible with the release-i.

[pgawlowicz]

hi @aliasadi2001, any update on this issue?

[aliasadi2001]

Hello,
Unfortunately, I couldn't connect ns-ORAN to containerized OSC RIC.
I am seeking any help for this connection.
Thank you.

[pgawlowicz]

Probably you would need to update the agent used in ns3 to a newer release.