**** Working:

SERVER02:/tmp# ldapsearch -LLL -x -b "ou=People,dc=company,dc=com" -d 1
ldap_create
ldap_sasl_bind
ldap_send_initial_request
ldap_new_connection 1 1 0
ldap_int_open_connection
ldap_connect_to_path
ldap_new_socket: 4
ldap_connect_to_path: Trying /var/run/slapd/ldapi
ldap_connect_timeout: fd: 4 tm: -1 async: 0
ldap_ndelay_on: 4
ldap_ndelay_off: 4
ldap_open_defconn: successful
ldap_send_server_request
ber_scanf fmt ({it) ber:
ber_scanf fmt ({i) ber:
ber_flush2: 14 bytes to sd 4
ldap_result ld 0xb9044c68 msgid 1



**** Not working:

SERVER01:/etc/ldap/slapd.d# ldapsearch -LLL -x -b "ou=People,dc=company,dc=com" -d 1
ldap_create
ldap_sasl_bind
ldap_send_initial_request
ldap_new_connection 1 1 0
ldap_int_open_connection
ldap_connect_to_host: TCP usny1ldp.company.com:389
ldap_new_socket: 4
ldap_prepare_socket: 4
ldap_connect_to_host: Trying 201.x.x.x:389
ldap_pvt_connect: fd: 4 tm: -1 async: 0
attempting to connect:
connect errno: 110
ldap_close_socket: 4
ldap_int_open_connection
ldap_connect_to_host: TCP usla1ldp.company.com:389
ldap_new_socket: 4
ldap_prepare_socket: 4
ldap_connect_to_host: Trying 201.x.x.x:389
ldap_pvt_connect: fd: 4 tm: -1 async: 0
attempting to connect:
connect errno: 110
ldap_close_socket: 4
ldap_err2string
ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1)