def configIsIsL3Ngpf(self, obj, **data):
        """
        Description
            Create or modify ethernet/ISISL3

        Parameters
            ethernetObj: '/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1'
            data: The ISISL3 attributes.  You could view all the attributes from the IxNetwork API browser.

        Syntax
            POST:  /api/v1/sessions/{id}/ixnetwork/topology/{id}/deviceGroup/{id}/ethernet/{id}/isisL3
            PATCH: /api/v1/sessions/{id}/ixnetwork/topology/{id}/deviceGroup/{id}/ethernet/{id}/isisL3/{id}

        Return
            /api/v1/sessions/{id}/ixnetwork/topology/{id}/deviceGroup/{id}/ethernet/{id}/isisL3/{id}
        """
        createNewIsIsObj = True

        if 'isis' in obj:
            # To modify ISIS
            isisObj = obj
            createNewIsIsObj = False
        else:
            # To create a new ISIS object
            url = self.ixnObj.httpHeader+obj + '/isisL3'
            response = self.ixnObj.post(url, data=data)
            isisObj = response.json()['links'][0]['href']
            
        response = self.ixnObj.get(self.ixnObj.httpHeader+isisObj)
        self.configuredProtocols.append(isisObj)
        return isisObj