During replication topology set up for IBM Security Directory Server, you may see this error. This error message has written into queue details page, on the Last Attempted Details tab. Complete error message is: bindtoreplica: unknown authentication type in agreement.
You may see this error while configuring replication between servers. This error message explains that: one of your servers does not have credential information. You need to do a cross check for replication credential between servers.
Click to replication management then manage credentials. Check each entry to find which replication credential does not exists on one of the servers.
Create lacking replication credential manually and re-check your queue status.