groupname_attribute VS groupmembership_attribute

[haizam]

Dear all,

What is the different between groupname_attribute & 
groupmembership_attribute  ??

I'm using groupname_attribute  & groupmembership_filter  to search for 
particular group... and its work.. just wondering when to use 
groupmembership_attribute


                # groupname_attribute = cn
                groupname_attribute = ConnectionType
                # groupmembership_filter = 
"(|(&(objectClass=GroupOfNames)(member=%{Ldap-UserDn}))(&(objectClass=GroupOfUniqueNames 
(uniquemember=%{Ldap-UserDn})))"
                groupmembership_filter = 
"(&(uid=%{Stripped-User-Name:-%{User-Name}})(objectclass=radiusprofile))"
                # groupmembership_attribute = radiusGroupName



--haizam