def getDiscoverdNeighborOnPort(self, portName):
        """
        Description
            Get Arp discovered neighbor on a specified port

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

        Syntax
            GET: http://10.154.162.94:11009/api/v1/sessions/1/ixnetwork/vport/1/discoveredNeighbor/1

        Examples
            getDiscoverdNeighborOnPort(portName='1/1/11')

        Return
            Discovered mac address
        """
        vport = self.portMgmtObj.getVportObjectByName(portName)
        if vport == None:
            raise IxNetRestApiException('PortName {0} not connected to chassis'.format(portName))

        url = vport + '/discoveredNeighbor'
        response = self.ixnObj.get(url)

        url = self.ixnObj.httpHeader + response.json()[0]['links'][0]['href']
        response = self.ixnObj.get(url)

        self.ixnObj.logInfo('Discovered Neighbor: %s' % response.json()['neighborMac'])
        return response.json()['neighborMac']