Hi Akash,
The protocol bridge agent (PBA) will create connections to the SFTP server every time it runs the scheduled transfers. Each of these connections will use the serverUserID specified in the ProtocolBridgeCredentials.xml file, so I suspect this is what is causing the behaviour your client is seeing.
You should be able to check this by looking at the PBA log files. The files are called agentEvent<number>.log and can be found in the agent's log directory (<MQ_DATA_PATH>/mqft/logs/<coordination_qmgr_name>/agents/<agent_name>). The files show all of the SFTP flows between the PBA and the SFTP server. If you look at them, you should see the connections that the agent is creating when it is running the scheduled transfers.
Hope this helps! If you have any questions on this, feel free to ask.
------------------------------
Paul Titheridge
IBM MQ Development : Java Service
------------------------------
Original Message:
Sent: Tue December 23, 2025 10:50 AM
From: Akash Kanungo
Subject: MFT | Protocol Agent "serverUserId=" in Credential file
For MFT File transfer to remote SFTP server, there is a user authentication set for PB agent using Protocol bridge credential file.
In that file i have mentioned "serverUserId=" along with other parameters.
Now our client reports that the remote SFTP server is reporting a high connection rate for the ServerUserID. that i set under credential file of PB agent.
I want to understand, what decide the connection rate of this "serverUserId=" ?
Does it depend on occurrence frequency (-of) set during fteCreatetransfer command ? or any other factor.
our schedule transfers run every 1 min (means it poll the source location [remote SFTP server directory] for any file available for transfer].
Thanks in advance!
------------------------------
Akash Kanungo
------------------------------