Revision b453e006

View differences:

mininet/node.py
995 995

  
996 996
    def checkListening( self ):
997 997
        "Make sure no controllers are running on our port"
998
        # Verify that Telnet is installed first:
999
        out, err, returnCode = errRun( "which telnet" )
1000
        if 'telnet' not in out or returnCode != 0:
1001
            raise Exception( "Error running telnet to check for listening "
1002
                             "controllers; please check that it is "
1003
                             "installed." )
998 1004
        listening = self.cmd( "echo A | telnet -e A %s %d" %
999 1005
                              ( self.ip, self.port ) )
1000 1006
        if 'Unable' not in listening:

Also available in: Unified diff