CollabNetSubversion LDAP server setting problem for windows 7

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Windows

LDAP

I want to use CollabNetSubversionEdge subversion in windows 7. Local Users can access the subversion using
"Local authentication against an htpasswd file along with other providers" but when ever I am choosing
"LDAP authentication against an LDAP server:" under "Authentication" tab at the left panel,
I could not be able to run the subversion server. It is showing the message "The server could not bind to port "3343".
Check permission to use the port and that another process is not using the port."

Please help me set my sever setting and Authontication settings for window 7. My questions are as follows:

1. What is the port no under Server setting? Please tell me the Port no.
2. In "Authontication" when I checked "LDAP authentication against an LDAP server" option
What should I put for the below fields to run this subversion ?
a) LDAP Security Level: ?
b) LDAP Server Host: is it my pc name?
c) LDAP Server Port: what is the no.?
d) LDAP Base DN:
e) LDAP Bind DN:

and if needed extra settings please help me.