def sendArpOnPort(self, portName):
        """
        Description
            Send Arp request on a specified port

        Parameters
            portName: <str>: Name of the port. eg: '1/1/11'

        Syntax
            POST: http://10.154.162.94:11009/api/v1/sessions/1/ixnetwork/vport/operations/sendarp
            DATA: {"arg1": "/api/v1/sessions/1/ixnetwork/vport/1"}

        Examples
            sendArpOnPort(portName='1/1/11')
        """
        vport = self.portMgmtObj.getVportObjectByName(portName)
        if vport == None:
            raise IxNetRestApiException('PortName {0} not connected to chassis'.format(portName))

        url = self.ixnObj.sessionUrl + '/vport/operations/sendarp'
        response = self.ixnObj.post(url, data={'arg1': vport})
        self.ixnObj.waitForComplete(response, url + '/' + response.json()['id'])