unbind - abandon in the backend ..... what's the difference ?

[reinhard.e.voglmaier@gsk.com]

As everybody may know I'm the guy playin'
around with the Perl Backend.
Looking at the single operations implemented
in the backend I monitored a little bit the bind - unbind activity.

Well I got a big surprise, the "unbind"
operation is nearly always combined with an "abandon" operation.
I am speaking of the backend of course.
So what I am wondered about is that using
the same code in the client, in the OpenLDAP backend arrives sometime "unbind+abandon"
and sometime "unbind" only. Why ?

thx a lot
reinhard