def configBgp(self, obj=None, routerId=None, port=None, portName=None, ngpfEndpointName=None, hostIp=None, **kwargs):
        """
        Description
            Create or modify BGP.  If creating a new BGP, provide an IPv4 object handle.
            If modifying a BGP, there are five options. 2-6 will query for the BGP object handle.

               1> Provide the BGP object handle using the obj parameter.
               2> Set routerId.
               3> Set port: The physical port.
               4> Set portName: The vport port name.
               5> Set NGPF BGP name that you configured.
               6> Set hostIp: The src IP.

        Parameters
            obj: <str>: None or Either an IPv4 object or a BGP object.
               If creating new bgp object:
                  IPv4 object example: /api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1
               If modifying, you could provide the bgp object handle using the obj parameter:
                  BGP object example: /api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1/bgpIpv4Peer/1
            
            routerId: <str>: The router ID IP address.
            port: <list>: Format: [ixChassisIp, str(cardNumber), str(portNumber)]
            portName: <str>: The virtual port name.
            ngpfEndpointName: <str>: The name that you configured for the NGPF endpoint.
            hostIp: <src>: The source IP address to query for the object.
            kwargs: BGP configuration attributes. The attributes could be obtained from the IxNetwork API browser.

        Syntax
            POST:  /api/v1/sessions/{id}/ixnetwork/topology/{id}/deviceGroup/{id}/ethernet/{id}/ipv4/{id}/bgpIpv4Peer
            PATCH: /api/v1/sessions/{id}/ixnetwork/topology/{id}/deviceGroup/{id}/ethernet/{id}/ipv4/{id}/bgpIpv4Peer/{id}

        Example: Create a new bgp object...
            configBgp(ipv4Obj,
                  name = 'bgp_1',
                  enableBgp = True,
                  holdTimer = 90,
                  dutIp={'start': '1.1.1.2', 'direction': 'increment', 'step': '0.0.0.0'},
                  localAs2Bytes=101,
                  enableGracefulRestart = False,
                  restartTime = 45,
                  type = 'internal',
                  enableBgpIdSameasRouterId = True

        Return
            /api/v1/sessions/{id}/ixnetwork/topology/{id}/deviceGroup/{id}/ethernet/{id}/ipv4/{id}/bgpIpv4Peer/{id}
        """
        # To create a new BGP stack using IPv4 object.
        if obj != None:
            if 'bgp' not in obj:
                if 'ipv4' in obj:
                    bgpUrl = self.ixnObj.httpHeader+obj+'/bgpIpv4Peer'

                if 'ipv6' in obj:
                    bgpUrl = self.ixnObj.httpHeader+obj+'/bgpIpv6Peer'

                self.ixnObj.logInfo('Create new BGP in NGPF')
                response = self.ixnObj.post(bgpUrl)
                # /api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv4/1/bgpIpv4Peer/1
                bgpObj = response.json()['links'][0]['href']

            # To modify BGP by providing a BGP object handle.
            if 'bgp' in obj:
                bgpObj = obj

        # To modify
        if ngpfEndpointName:
            bgpObj = self.getNgpfObjectHandleByName(ngpfEndpointName=ngpfEndpointName, ngpfEndpointObject='bgpIpv4Peer')

        # To modify
        if port:
            x = self.getProtocolListByPortNgpf(port=port)
            bgpObj = self.getProtocolObjFromProtocolList(x['deviceGroup'], 'bgpIpv4Peer')[0]

        # To modify
        if portName:
            x = self.getProtocolListByPortNgpf(portName=portName)
            bgpObj = self.getProtocolObjFromProtocolList(x['deviceGroup'], 'bgpIpv4Peer')[0]

        # To modify
        if routerId:
            bgpObj = self.getNgpfObjectHandleByRouterId(routerId=routerId, ngpfEndpointObject='bgpIpv4Peer')

        # To modify
        if hostIp:
            x = self.getProtocolListByHostIpNgpf(hostIp)
            bgpObj = self.getProtocolObjFromHostIp(x, protocol='bgpIpv4Peer')

        bgpObjResponse = self.ixnObj.get(self.ixnObj.httpHeader+bgpObj + '?links=true')

        if 'name' in kwargs:
            self.ixnObj.patch(self.ixnObj.httpHeader+bgpObj, data={'name': kwargs['name']})

        # For BgpIpv4Peer
        if 'enableBgp' in kwargs and kwargs['enableBgp'] == True:
            multiValue = bgpObjResponse.json()['enableBgpId']
            self.ixnObj.patch(self.ixnObj.httpHeader+multiValue+"/singleValue", data={'value': True})

        # For BgpIpv6Peer
        if 'active' in kwargs and kwargs['active'] == True:
            multiValue = bgpObjResponse.json()['active']
            self.ixnObj.patch(self.ixnObj.httpHeader+multiValue+"/singleValue", data={'value': True})

        if 'dutIp' in kwargs:
            multiValue = bgpObjResponse.json()['dutIp']
            self.configMultivalue(multiValue, 'counter', data=kwargs['dutIp'])

        for key,value in bgpObjResponse.json().items():
            if key != 'links' and key not in ['dutIp']:
                if bool(re.search('multivalue', str(value))) == True:
                    if key in kwargs:
                        multiValue = bgpObjResponse.json()[key]
                        self.ixnObj.logInfo('Configuring BGP multivalue attribute: %s' % key)
                        self.ixnObj.patch(self.ixnObj.httpHeader+multiValue+"/singleValue", data={'value': kwargs[key]})
                else:
                    if key in kwargs:
                        self.ixnObj.patch(self.ixnObj.httpHeader+bgpObj, data={key: kwargs[key]})

        self.configuredProtocols.append(bgpObj)
        return bgpObj