def verifyProtocolSessionsNgpf(self, protocolObjList=None, timeout=90):
        """
        Description
            Either verify the user specified protocol list to verify for session UP or verify
            the default object's self.configuredProtocols list that accumulates the emulation protocol object
            when it was configured.
            When verifying IPv4, this API will verify ARP failures and return you a list of IP interfaces
            that failed ARP.

        Parameters
            protocolObjList: <list>: A list of protocol objects.  Default = None.  The class will automatically verify all
                                     of the configured protocols.
                         Ex: ['/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1',
                              '/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1',
                              '/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1/bgpIpv4Peer/1',
                              '/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1/ospfv2/1',]

            timeout: <int>: Total wait time for all the protocols in the provided list to come up.

        Syntaxes
            GET:  http://10.219.117.103:11009/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1
            RESPONSE:  [u'notStarted', u'notStarted', u'notStarted', u'notStarted', u'notStarted', u'notStarted']
            GET:  http://10.219.117.103:11009/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1
            RESPONSE:  [u'up', u'up', u'up', u'up', u'up', u'up', u'up', u'up']
            GET:  http://10.219.117.103:11009/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1/bgpIpv4Peer/1
        """
        timerStop = timeout
        if protocolObjList is None:
            protocolObjList = self.configuredProtocols

        for eachProtocol in protocolObjList:
            # notStarted, up or down
            protocolName =  eachProtocol.split('/')[-2]
            for timer in range(1,timerStop+1):
                sessionStatus = self.getSessionStatus(eachProtocol)
                # ['up']
                response = self.ixnObj.get(self.ixnObj.httpHeader+eachProtocol, silentMode=True)
                # Started
                protocolSessionStatus = response.json()['status']

                self.ixnObj.logInfo('\nVerifyProtocolSessions: %s\n' % eachProtocol, timestamp=False)
                self.ixnObj.logInfo('\tprotocolSessionStatus: %s' % protocolSessionStatus, timestamp=False)
                self.ixnObj.logInfo('\tsessionStatusResponse: %s' % sessionStatus, timestamp=False)
                if timer < timerStop:
                    if protocolSessionStatus != 'started':
                        self.ixnObj.logInfo('\tWait %s/%s seconds' % (timer, timerStop), timestamp=False)
                        time.sleep(1)
                        continue

                    # Started
                    if 'up' not in sessionStatus:
                        self.ixnObj.logInfo('\tProtocol session is down: Wait %s/%s seconds' % (timer, timerStop), timestamp=False)
                        time.sleep(1)
                        continue

                    if 'up' in sessionStatus:
                        self.ixnObj.logInfo('Protocol sessions are all up: {0}'.format(protocolName))
                        break

                if timer == timerStop:
                    if 'notStarted' in protocolSessionStatus:
                        raise IxNetRestApiException('\tverifyProtocolSessions: {0} session failed to start'.format(protocolName))
                        
                    if protocolSessionStatus == 'started' and 'down' in sessionStatus:
                        # Show ARP failures
                        if protocolName == 'ipv4':
                            ipInterfaceIndexList = []
                            index = 0
                            for eachSessionStatus in sessionStatus:
                                self.ixnObj.logInfo('eachSessionStatus index: {0} {1}'.format(eachSessionStatus, index), timestamp=False)
                                if eachSessionStatus == 'down':
                                    ipInterfaceIndexList.append(index)
                                index += 1

                            ipMultivalue = response.json()['address']
                            ipAddressList = self.ixnObj.getMultivalueValues(ipMultivalue, silentMode=True)
                            self.ixnObj.logWarning('ARP failed on IP interface:')
                            for eachIpIndex in ipInterfaceIndexList:
                                self.ixnObj.logInfo('\t{0}'.format(ipAddressList[eachIpIndex]), timestamp=False)
                        else:
                            self.ixnObj.logWarning('\tverifyProtocolSessions: {0} session failed'.format(protocolName))

                        raise IxNetRestApiException('Verify protocol sessions failed: {0}'.format(protocolName))