MQ

Hi

I have followed a blog entry "Interaction of IBM MQ MFT with AWS's S3 storage via rendered transfer services" to configure a MFT Protocol Bridge agent to connect IBM MQ MFT with an AWS S3 bucket. I configured certificates and can connect via the default Linux SFTP command using the cert and establishing a successful connection to the S3 bucket via AWS Transfer Family.

When trying to send files file MQ MFT via the Protocol Bridge agent it fails with the following error:

[14/08/24 12:05:52.106.00]  00000012     static  c.i.w.b.session.sftp.SFTPConnection                                    :---  !  openSession, BFGBR0104E: Bridge agent failed to connect to host XXXX with credentials of XXXXX because Algorithm negotiation fail [com.ibm.wmqfte.bridge.protocol.ProtocolException]

Anyone experienced this before or have any guidance on this issue?

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Brian Tinkler
South Africa
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Hi Brian,

I've not seen this before. However, looking at the error message it appears that the MFT Protocol Bridge Agent (PBA) and the AWS S3 storage system couldn't find a suitable algorithm to use for SFTP. 

MQ 9.4 enhances PBAs to support more algorithms (as shown in the General attributes that apply to SFTP servers only: section of the Protocol bridge properties file format topic in the 9.4 docs), so if you're not using that version I'd recommend upgrading to that to see if it helps. If you still see the issue when using 9.4, then I think you'll need to raise a case so that IBM Support can take a look for you.

Hope this helps!

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Paul Titheridge
IBM MQ Development : Java Service
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