OpenLDAP is now supported on Linux AMD64 (Opteron)/EM64T.
You can use the LDAP directory service to create, modify, and retrieve information from network entities.
To enable LDAP, modify the libtcl.cfg (32-bit) or libtcl64.cfg (64-bit) configuration files, both available in the $SYBASE/$SYBASE_OCS/config directory. Then, add an LDAP server to the configured directory service.
Further configuration instructions are provided in Chapter 5, “Using a Directory Service,” of the Open Client and Open Server Configuration Guide.