What's the difference in using distinguished name with cn or uid when logging into LDAP?

I'm running into a problem using LDAP to authenticate logins.

We are using a Novell edirectory for authentication of other applications like Jira. ( Jira works perfect ).

I have this application that allow these basic LDAP configurations:

My problem is, when I try to log in, it takes my username XXXXXXXX and pre-pends it to the search base as uid. So it tries to log me in as :

uid=XXXXXXXX,ou=people,o=mycompany

Which would work on our Sun LDAP server, but doesn't work on our Novell edirectory LDAP server. edirectory only works when I try to log in as the distinguished name :

cn=XXXXXXXX,ou=people,o=mycompany

Why does edirectory behave like this?

Is it config that we have specified or does edirectory always use cn as distinguished name?

Thanks

I suggest that is is the application that is 'behaving like this', not edirectory. Obviously your edirectoryis structured differently from your Sun LDAP server, yet the application is treating them both the same. LDAP servers only execute queries, they don't construct them. The application does that.