My OpenLDAP doesn't listen to port 636 ...

[Calvin Liu <calvin.liu@sun.com>]

Hi, there,

I've configured my slapd to use SSL. The startup is ok. And I can query
with command "ldapsearch -x -h <host> -b ''". But actually, it doesn't
listen to port 636.

If somebody knows why? How can I fix it? 

Thanks.
Calvin