[libvirt-users] TCP connection works for only remote host

tcp connection working only for remote host . for localhost raising the following error libvirt: XML-RPC error : unable to connect to server at 'localhost:16509': Connection refused Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/home/fluent/cvt/convirt-enterprise/tg2env/local/lib/python2.7/site-packages/libvirt.py", line 239, in open if ret is None:raise libvirtError('virConnectOpen() failed') libvirt.libvirtError: unable to connect to server at 'localhost:16509': Connection refused Is there any other params to be set for local host connection..? please help