SSL/TLS/clear indication in logs?

[Digant C Kasundra <digant@uta.edu>]

Hello everyone,

I'm almost embarrassed to ask this question as I thought I had a clear
understanding of the logs but I'm puzzled.  I did three connections (did
a simple bind): (a) over port 389, no TLS; (b) over port 389 with TLS;
(c) over port 636.  But each time, the logs indicate the following:

BIND dn="uid=digant,cn=accounts,dc=uta,dc=edu" mech=SIMPLE ssf=0

I would think the ssf would be different from the times I used TLS.
What am I missing?