def send_ignore(self, byte_count=None):
m = Message()<EOL>m.add_byte(cMSG_IGNORE)<EOL>if byte_count is None:<EOL><INDENT>byte_count = (byte_ord(os.urandom(<NUM_LIT:1>)) % <NUM_LIT:32>) + <NUM_LIT:10><EOL><DEDENT>m.add_bytes(os.urandom(byte_count))<EOL>self._send_user_message(m)<EOL>
Send a junk packet across the encrypted link.  This is sometimes used
to add "noise" to a connection to confuse would-be attackers.  It can
also be used as a keep-alive for long lived connections traversing
firewalls.

:param int byte_count:
    the number of random bytes to send in the payload of the ignored
    packet -- defaults to a random number from 10 to 41.