diff --git a/client/port.cpp b/client/port.cpp
index 89d94c3..06f40ae 100644
--- a/client/port.cpp
+++ b/client/port.cpp
@@ -16,6 +16,7 @@ Port::Port(quint32 id, quint32 portGroupId)
 {
 	mPortId = id;
 	d.mutable_port_id()->set_id(id);
+	stats.mutable_port_id()->set_id(id);
 	mPortGroupId = portGroupId;
 }
 
@@ -166,10 +167,6 @@ void Port::getModifiedStreamsSinceLastSync(
 	}
 }
 
-
-//
-// ----------- SLOTS -------------
-//
 void Port::when_syncComplete()
 {
 	qSort(mStreams);
@@ -179,3 +176,8 @@ void Port::when_syncComplete()
 		mLastSyncStreamList.append(mStreams[i].id());
 }
 
+void Port::updateStats(OstProto::PortStats *portStats)
+{
+	stats.MergeFrom(*portStats);
+}
+
diff --git a/client/port.h b/client/port.h
index f96d31c..b16d680 100644
--- a/client/port.h
+++ b/client/port.h
@@ -13,8 +13,9 @@ class Port {
 	//friend class StreamModel;
 
 private:
-	static uint		mAllocStreamId;
-	OstProto::Port	d;
+	static uint			mAllocStreamId;
+	OstProto::Port		d;
+	OstProto::PortStats	stats;
 
 	// FIXME(HI): consider removing mPortId as it is duplicated inside 'd'
 	quint32		mPortId;
@@ -68,6 +69,7 @@ public:
 		Q_ASSERT(index < mStreams.size());
 		return mStreams[index];
 	}
+	OstProto::PortStats	getStats() { return stats; }
 
 	// FIXME(MED): naming inconsistency - PortConfig/Stream; also retVal
 	void updatePortConfig(OstProto::Port *port);
@@ -89,7 +91,11 @@ public:
 	void getModifiedStreamsSinceLastSync(
 		OstProto::StreamConfigList &streamConfigList);
 
+
 	void when_syncComplete();
+
+	void updateStats(OstProto::PortStats *portStats);
+
 };
 
 #endif
diff --git a/client/portgroup.cpp b/client/portgroup.cpp
index 3de90cc..70cb66e 100644
--- a/client/portgroup.cpp
+++ b/client/portgroup.cpp
@@ -413,3 +413,81 @@ void PortGroup::processModifyStreamAck(OstProto::Ack *ack)
 
 	// TODO(HI): Apply Button should now be disabled???!!!!???
 }
+
+void PortGroup::startTx(QList<uint> portList)
+{
+	OstProto::PortIdList	portIdList;
+	OstProto::Ack			*ack = new OstProto::Ack;
+
+	qDebug("In %s", __FUNCTION__);
+
+	for (int i = 0; i < portList.size(); i++)
+	{
+		OstProto::PortId	*portId;
+		portId = portIdList.add_port_id();
+		portId->set_id(portList.at(i));
+	}
+
+	serviceStub->startTx(rpcController, &portIdList, ack,
+			NewCallback(this, &PortGroup::processStartTxAck, ack));
+}
+
+void PortGroup::processStartTxAck(OstProto::Ack	*ack)
+{
+	qDebug("In %s", __FUNCTION__);
+
+	delete ack;
+}
+
+void PortGroup::getPortStats()
+{
+	OstProto::PortStatsList	*portStatsList = new OstProto::PortStatsList;
+
+	qDebug("In %s", __FUNCTION__);
+
+	serviceStub->getStats(rpcController, &portIdList, portStatsList,
+			NewCallback(this, &PortGroup::processPortStatsList, portStatsList));
+}
+
+void PortGroup::processPortStatsList(OstProto::PortStatsList *portStatsList)
+{
+	qDebug("In %s", __FUNCTION__);
+
+	if (rpcController->Failed())
+	{
+		qDebug("%s: rpc failed", __FUNCTION__);
+		goto _error_exit;
+	}
+
+	for(int i = 0; i < portStatsList->port_stats_size(); i++)
+	{
+		uint	id;
+
+		id = portStatsList->port_stats(i).port_id().id();
+		// FIXME: don't mix port id & index into mPorts[]
+		mPorts[id].updateStats(portStatsList->mutable_port_stats(i));
+	}
+
+	emit statsChanged(mPortGroupId);
+
+_error_exit:
+	delete portStatsList;
+}
+
+void PortGroup::clearPortStats()
+{
+	OstProto::Ack	*ack = new OstProto::Ack;
+
+	qDebug("In %s", __FUNCTION__);
+
+	serviceStub->clearStats(rpcController, &portIdList, ack,
+			NewCallback(this, &PortGroup::processClearStatsAck, ack));
+}
+
+void PortGroup::processClearStatsAck(OstProto::Ack	*ack)
+{
+	qDebug("In %s", __FUNCTION__);
+
+	delete ack;
+}
+
diff --git a/client/portgroup.h b/client/portgroup.h
index 89c02af..e2b5317 100644
--- a/client/portgroup.h
+++ b/client/portgroup.h
@@ -69,10 +69,20 @@ public:
 		OstProto::StreamConfigList *streamConfigList = NULL);
 
 	void processModifyStreamAck(OstProto::Ack *ack);
+
+	void startTx(QList<uint> portList);
+	void processStartTxAck(OstProto::Ack *ack);
+
+	void getPortStats();
+	void processPortStatsList(OstProto::PortStatsList *portStatsList);
+	void clearPortStats();
+	void processClearStatsAck(OstProto::Ack	*ack);
+
 signals:
 	void portGroupDataChanged(PortGroup* portGroup);
 	void portListAboutToBeChanged(quint32 portGroupId);
 	void portListChanged(quint32 portGroupId);
+	void statsChanged(quint32 portGroupId);
 
 private slots:
 	void on_rpcChannel_stateChanged();
diff --git a/client/portgrouplist.cpp b/client/portgrouplist.cpp
index 06df02d..a503449 100644
--- a/client/portgrouplist.cpp
+++ b/client/portgrouplist.cpp
@@ -74,6 +74,9 @@ void PortGroupList::addPortGroup(PortGroup &portGroup)
 	connect(&portGroup, SIGNAL(portListChanged(quint32)),
 		&mPortStatsModel, SLOT(when_portListChanged()));
 
+	connect(&portGroup, SIGNAL(statsChanged(quint32)),
+		&mPortStatsModel, SLOT(when_portGroup_stats_update(quint32)));
+
 	mPortGroups.append(&portGroup);
 	portGroup.connectToHost();
 
diff --git a/client/portgrouplist.h b/client/portgrouplist.h
index 84bdb9c..aadd24d 100644
--- a/client/portgrouplist.h
+++ b/client/portgrouplist.h
@@ -28,6 +28,7 @@ class PortGroupList : public QObject {
 public:
 	PortGroupList::PortGroupList();
 
+
 	PortModel* getPortModel() { return &mPortGroupListModel; }
 	PortStatsModel* getPortStatsModel() { return &mPortStatsModel; }
 	StreamModel* getStreamModel() { return &mStreamListModel; }
@@ -37,6 +38,9 @@ public:
 	PortGroup& portGroup(const QModelIndex& index);
 	Port& port(const QModelIndex& index);
 
+	int numPortGroups() { return mPortGroups.size(); }
+	PortGroup& portGroupByIndex(int index) { return *(mPortGroups[index]); }
+
 	void addPortGroup(PortGroup &portGroup);
 	void removePortGroup(PortGroup &portGroup);
 
diff --git a/client/portstatsmodel.cpp b/client/portstatsmodel.cpp
index 5da586b..d8b40e6 100644
--- a/client/portstatsmodel.cpp
+++ b/client/portstatsmodel.cpp
@@ -1,10 +1,18 @@
 #include "portstatsmodel.h"
 #include "portgrouplist.h"
 
+#include <QTimer>
+
 PortStatsModel::PortStatsModel(PortGroupList *p, QObject *parent)
 	: QAbstractTableModel(parent) 
 {
+	QTimer	*timer;
+
 	pgl = p;
+
+	timer = new QTimer();
+	connect(timer, SIGNAL(timeout()), this, SLOT(updateStats()));
+	timer->start(5000);
 }
 
 int PortStatsModel::rowCount(const QModelIndex &parent) const
@@ -32,9 +40,33 @@ int PortStatsModel::columnCount(const QModelIndex &parent ) const
 			return numPorts.last();
 }
 
+void PortStatsModel::getDomainIndexes(const QModelIndex &index,
+		uint &portGroupIdx, uint &portIdx) const
+{
+	int portNum;
+
+	// TODO(LOW): Optimize using binary search: see qLowerBound()
+	portNum = index.column() + 1;
+	for (portGroupIdx = 0; portGroupIdx < (uint) numPorts.size(); portGroupIdx++)
+		if (portNum <= numPorts.at(portGroupIdx))
+			break;
+
+	if (portGroupIdx)
+	{
+		if (numPorts.at(portGroupIdx -1))
+			portIdx = (portNum - 1) % numPorts.at(portGroupIdx - 1); 
+		else
+			portIdx = portNum - 1; 
+	}
+	else
+		portIdx = portNum - 1; 
+
+	//qDebug("PSM: %d - %d, %d", index.column(), portGroupIdx, portIdx);
+}
+
 QVariant PortStatsModel::data(const QModelIndex &index, int role) const
 {
-	int pgidx, pidx, portNum;
+	uint pgidx, pidx;
 
 	// Check for a valid index
 	if (!index.isValid())
@@ -50,31 +82,44 @@ QVariant PortStatsModel::data(const QModelIndex &index, int role) const
 	if (index.column() >= (numPorts.last()))
 		return QVariant();
 
-	// TODO(LOW): Optimize using binary search: see qLowerBound()
-	portNum = index.column() + 1;
-	for (pgidx = 0; pgidx < numPorts.size(); pgidx++)
-		if (portNum <= numPorts.at(pgidx))
-			break;
-
-	if (pgidx)
-	{
-		if (numPorts.at(pgidx -1))
-			pidx = (portNum - 1) % numPorts.at(pgidx - 1); 
-		else
-			pidx = portNum - 1; 
-	}
-	else
-		pidx = portNum - 1; 
-
-	//qDebug("PSM: %d - %d, %d", index.column(), pgidx, pidx);
+	getDomainIndexes(index, pgidx, pidx);
 
 	// Check role
 	if (role == Qt::DisplayRole)
 	{
-#if 0 // PB
-		return pgl->mPortGroups.at(pgidx)->mPorts.at(pidx).mPortStats[index.row()];
-#endif	
-		return 0;	//FIXME: Get actual port stats
+		OstProto::PortStats	stats;
+
+		stats = pgl->mPortGroups.at(pgidx)->mPorts[pidx].getStats();
+
+		switch(index.row())
+		{
+			case e_STAT_FRAMES_RCVD:
+				return stats.rx_pkts();
+
+			case e_STAT_FRAMES_SENT:
+				return stats.tx_pkts();
+
+			case e_STAT_FRAME_SEND_RATE:
+				return stats.tx_pps();
+
+			case e_STAT_FRAME_RECV_RATE:
+				return stats.rx_pps();
+
+			case e_STAT_BYTES_RCVD:
+				return stats.rx_bytes();
+
+			case e_STAT_BYTES_SENT:
+				return stats.tx_bytes();
+
+			case e_STAT_BYTE_SEND_RATE:
+				return stats.tx_bps();
+
+			case e_STAT_BYTE_RECV_RATE:
+				return stats.rx_bps();
+
+			default:
+				return 0;
+		}
 	}
 	else
 		return QVariant();
@@ -92,6 +137,22 @@ QVariant PortStatsModel::headerData(int section, Qt::Orientation orientation, in
 		return PortStatName.at(section);
 }
 
+void PortStatsModel::portListFromIndex(QModelIndexList indices, 
+		QList<PortGroupAndPortList> &portList)
+{
+	portList.clear();
+
+	for (int i = 0; i < indices.size(); i++)
+	{
+		//getDomainIndexes(indices.at(i), portGroupIdx, portIdx);	
+
+		for (int j = 0; j < portList.size(); j++)
+		{
+			// FIXME(HI): Incomplete!!!!
+		}
+	}
+}
+
 //
 // Slots
 //
@@ -121,4 +182,16 @@ void PortStatsModel::on_portStatsUpdate(int port, void*stats)
 	emit dataChanged(topLeft, bottomRight);
 }
 
+void PortStatsModel::updateStats()
+{
+	// Request each portgroup to fetch updated stats - the port group
+	// raises a signal once updated stats are available
+	for (int i = 0; i < pgl->mPortGroups.size(); i++)
+		pgl->mPortGroups[i]->getPortStats();
+}
 
+void PortStatsModel::when_portGroup_stats_update(quint32 portGroupId)
+{
+	// FIXME(MED): update only the changed ports, not all
+	reset();
+}
diff --git a/client/portstatsmodel.h b/client/portstatsmodel.h
index 6bf5c5a..6dc4693 100644
--- a/client/portstatsmodel.h
+++ b/client/portstatsmodel.h
@@ -33,9 +33,8 @@ class PortStatsModel : public QAbstractTableModel
 {
 	Q_OBJECT
 
-	PortGroupList	*pgl;
-
 	public:
+
 		PortStatsModel(PortGroupList *p, QObject *parent = 0);
 
 		int rowCount(const QModelIndex &parent = QModelIndex()) const;
@@ -44,16 +43,32 @@ class PortStatsModel : public QAbstractTableModel
 		QVariant headerData(int section, Qt::Orientation orientation, 
 			int role = Qt::DisplayRole) const;
 
+		class PortGroupAndPortList {
+			uint portGroupId;
+			QList<uint> portList;
+		};
+		void portListFromIndex(QModelIndexList indices, 
+				QList<PortGroupAndPortList> &portList);
+
 	public slots:
 		void when_portListChanged();
 		void on_portStatsUpdate(int port, void*stats);
+		void when_portGroup_stats_update(quint32 portGroupId);
+
+	private slots:
+		void updateStats();
 
 	private:
+		PortGroupList	*pgl;
+
 		// numPorts stores the num of ports per portgroup
 		// in the same order as the portgroups are index in the pgl
 		// Also it stores them as cumulative totals
 		QList<quint16>	numPorts;
 
+		void getDomainIndexes(const QModelIndex &index,
+			  uint &portGroupIdx, uint &portIdx) const;
+
 };
 
 #endif
diff --git a/client/portstatswindow.cpp b/client/portstatswindow.cpp
index 1339ebb..28b8f88 100644
--- a/client/portstatswindow.cpp
+++ b/client/portstatswindow.cpp
@@ -5,20 +5,71 @@
 
 #include "QHeaderView"
 
-//PortStatsWindow::PortStatsWindow(QWidget *parent) : QDialog (parent)
 PortStatsWindow::PortStatsWindow(PortGroupList *pgl, QWidget *parent)
+	: QWidget(parent)
 {
 	setupUi(this);
 
+	this->pgl = pgl;
 	model = pgl->getPortStatsModel();
 	tvPortStats->setModel(model);
 	tvPortStats->horizontalHeader()->setMovable(true);
+	tvPortStats->verticalHeader()->resizeSections(QHeaderView::ResizeToContents);
 }
 
 PortStatsWindow::~PortStatsWindow()
 {
 }
 
+/* ------------- SLOTS -------------- */
+
+void PortStatsWindow::on_tbStartTransmit_clicked()
+{
+	// TODO(MED): get selected ports
+
+	if (pgl->numPortGroups())
+	{
+		QList<uint>	portIdList;
+
+		// FIXME(HI): Testing only!!!
+		portIdList.append(1); // MS Loopback adapter
+		pgl->portGroupByIndex(0).startTx(portIdList);
+	}
+}
+
+void PortStatsWindow::on_tbStopTransmit_clicked()
+{
+	// TODO(MED)
+}
+
+void PortStatsWindow::on_tbStartCapture_clicked()
+{
+	// TODO(MED)
+}
+
+void PortStatsWindow::on_tbStopCapture_clicked()
+{
+	// TODO(MED)
+}
+
+void PortStatsWindow::on_tbViewCapture_clicked()
+{
+	// TODO(MED)
+}
+
+void PortStatsWindow::on_tbClear_clicked()
+{
+	// TODO(MED)
+}
+
+void PortStatsWindow::on_tbClearAll_clicked()
+{
+	for (int i = 0; i < pgl->numPortGroups(); i++)
+	{
+		pgl->portGroupByIndex(0).clearPortStats();
+	}
+}
+
 void PortStatsWindow::on_tbFilter_clicked()
 {
 	bool ok;
diff --git a/client/portstatswindow.h b/client/portstatswindow.h
index e5a1a97..98642c1 100644
--- a/client/portstatswindow.h
+++ b/client/portstatswindow.h
@@ -6,17 +6,29 @@
 #include "ui_portstatswindow.h"
 #include "portgrouplist.h"
 
-class PortStatsWindow : public QDialog, public Ui::PortStatsWindow
+class PortStatsWindow : public QWidget, public Ui::PortStatsWindow
 {
 	Q_OBJECT
 
 public:
 	PortStatsWindow(PortGroupList *pgl, QWidget *parent = 0);
 	~PortStatsWindow();
+
 private:
+	PortGroupList		*pgl;
 	QAbstractItemModel	*model;
 
 private slots:
+	void on_tbStartTransmit_clicked();
+	void on_tbStopTransmit_clicked();
+
+	void on_tbStartCapture_clicked();
+	void on_tbStopCapture_clicked();
+	void on_tbViewCapture_clicked();
+
+	void on_tbClear_clicked();
+	void on_tbClearAll_clicked();
+
 	void on_tbFilter_clicked();
 };
 
diff --git a/common/protocol.proto b/common/protocol.proto
index 9cb835f..7ffd54f 100644
--- a/common/protocol.proto
+++ b/common/protocol.proto
@@ -34,7 +34,7 @@ message Llc {
 
 message Snap {
 	optional uint32			oui = 1;
-	optional uint32			type = 2;
+	//optional uint32			type = 2;
 }
 
 message Eth2 {
@@ -126,7 +126,7 @@ message Udp {
 
 	optional uint32		src_port = 3 [default = 8902];
 	optional uint32		dst_port = 4 [default = 80];
-	optional uint32		totLen = 5;
+	optional uint32		totlen = 5;
 	optional uint32		cksum = 6;
 }
 
@@ -279,11 +279,21 @@ message CaptureBufferList {
 }
 
 message PortStats {
-	// TODO
+	required PortId	port_id = 1;
+
+	optional uint64 rx_pkts = 11;
+	optional uint64 rx_bytes = 12;
+	optional uint64 rx_pps = 13;
+	optional uint64 rx_bps = 14;
+
+	optional uint64 tx_pkts = 21;
+	optional uint64 tx_bytes = 22;
+	optional uint64 tx_pps = 23;
+	optional uint64 tx_bps = 24;
 }
 
 message PortStatsList {
-	repeated PortStats list = 1;
+	repeated PortStats port_stats = 1;
 }
 
 service OstService {
diff --git a/server/drone.pro b/server/drone.pro
index df79396..79cbd1a 100644
--- a/server/drone.pro
+++ b/server/drone.pro
@@ -1,7 +1,7 @@
 TEMPLATE = app
 CONFIG += qt
 QT += network
-DEFINES += HAVE_REMOTE
+DEFINES += HAVE_REMOTE WPCAP
 INCLUDEPATH += "c:\msys\1.0\local\include"
 INCLUDEPATH += "C:\DevelLibs\WpdPack\Include"
 INCLUDEPATH += "..\rpc"
diff --git a/server/myservice.cpp b/server/myservice.cpp
index de438e1..79db27b 100644
--- a/server/myservice.cpp
+++ b/server/myservice.cpp
@@ -1,7 +1,311 @@
 #include "myservice.h"
 #include "qdebug.h"
 
-#define LOG(...)   {sprintf(logStr, __VA_ARGS__); host->Log(logStr);}
+#include <qendian.h>
+
+#define LOG(...)	{sprintf(logStr, __VA_ARGS__); host->Log(logStr);}
+#define MB			(1024*1024)
+
+int StreamInfo::makePacket(uchar *buf, int bufMaxSize)
+{
+	int		pktLen, len = 0;
+	uchar	scratch[8];
+
+	// TODO(HI): use FrameLengthMode - don't assume fixed
+	pktLen = d.core().frame_len();
+	if (bufMaxSize < pktLen)
+		return 0;
+
+	// We always have a Mac Header!
+	// TODO(HI): use MacMode - don't assume fixed
+	qToBigEndian((quint64) d.mac().dst_mac(), scratch);
+	memcpy((buf + len), scratch + 2, 6);
+	len += 6;
+	qToBigEndian((quint64) d.mac().src_mac(), scratch);
+	memcpy((buf + len), &scratch + 2, 6);
+	len += 6;
+
+	switch(d.core().ft())
+	{
+	case OstProto::StreamCore::e_ft_none:
+		break;
+	case OstProto::StreamCore::e_ft_eth_2:
+		qToBigEndian((quint16) d.eth2().type(), buf+len);
+		len += 2;
+		break;
+	case OstProto::StreamCore::e_ft_802_3_raw:
+		qToBigEndian((quint16) pktLen, buf+len);
+		len += 2;
+		break;
+	case OstProto::StreamCore::e_ft_802_3_llc:
+		buf[len+0] = (quint8) d.llc().dsap();
+		buf[len+1] = (quint8) d.llc().ssap();
+		buf[len+2] = (quint8) d.llc().ctl();
+		len +=3;
+		break;
+	case OstProto::StreamCore::e_ft_snap:
+		buf[len+0] = (quint8) d.llc().dsap();
+		buf[len+1] = (quint8) d.llc().ssap();
+		buf[len+2] = (quint8) d.llc().ctl();
+		len +=3;
+		qToBigEndian((quint32) d.snap().oui(), scratch);
+		memcpy((buf + len), scratch + 2, 3);
+		len += 3;
+		qToBigEndian((quint16) d.eth2().type(), buf+len);
+		len += 2;
+		break;
+	default:
+		qWarning("Unhandled frame type %d\n", d.core().ft());
+	}
+
+	switch (d.core().l3_proto())
+	{
+	case OstProto::StreamCore::e_l3_none:
+		break;
+	case OstProto::StreamCore::e_l3_ip:
+		buf[len+0] = (quint8) (d.ip().ver_hdrlen());
+		buf[len+1] = (quint8) (d.ip().tos());
+		len += 2;
+		qToBigEndian((quint16) d.ip().tot_len(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) d.ip().id(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) (( (d.ip().flags() & 0x3) << 13) | 
+					(d.ip().frag_ofs() & 0x1FFF)), buf+len);
+		len += 2;
+		buf[len+0] = (quint8) (d.ip().ttl());
+		buf[len+1] = (quint8) (d.ip().proto());
+		len += 2;
+		qToBigEndian((quint16) d.ip().cksum(), buf+len);
+		len += 2;
+		// TODO(HI): Use IpMode - don't assume fixed
+		qToBigEndian((quint32) d.ip().src_ip(), buf+len);
+		len +=4;
+		qToBigEndian((quint32) d.ip().dst_ip(), buf+len);
+		len +=4;
+		break;
+	case OstProto::StreamCore::e_l3_arp:
+		// TODO(LOW)
+		break;
+	default:
+		qWarning("Unhandled l3 proto %d\n", d.core().l3_proto());
+	}
+
+	switch (d.core().l4_proto())
+	{
+	case OstProto::StreamCore::e_l4_none:
+		break;
+	case OstProto::StreamCore::e_l4_tcp:
+		qToBigEndian((quint16) d.tcp().src_port(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) d.tcp().dst_port(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) d.tcp().seq_num(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) d.tcp().ack_num(), buf+len);
+		len += 2;
+		buf[len+0] = (quint8) d.tcp().hdrlen_rsvd();
+		buf[len+1] = (quint8) d.tcp().flags();
+		len += 2;
+		qToBigEndian((quint16) d.tcp().window(), buf+len);
+		len +=2;
+		qToBigEndian((quint16) d.tcp().cksum(), buf+len);
+		len +=2;
+		qToBigEndian((quint16) d.tcp().urg_ptr(), buf+len);
+		len +=2;
+		break;
+	case OstProto::StreamCore::e_l4_udp:
+		qToBigEndian((quint16) d.udp().src_port(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) d.udp().dst_port(), buf+len);
+		len += 2;
+		qToBigEndian((quint16) d.udp().totlen(), buf+len);
+		len +=2;
+		qToBigEndian((quint16) d.udp().cksum(), buf+len);
+		len +=2;
+		break;
+	case OstProto::StreamCore::e_l4_icmp:
+		// TODO(LOW)
+		break;
+	case OstProto::StreamCore::e_l4_igmp:
+		// TODO(LOW)
+		break;
+	default:
+		qWarning("Unhandled l4 proto %d\n", d.core().l4_proto());
+	}
+
+	// Fill-in the data pattern
+	{
+		int dataLen;
+
+		dataLen = pktLen - len;
+		for (int i = 0; i < (dataLen/4)+1; i++)
+		{
+			// TODO(HI): Use patternMode
+			qToBigEndian((quint32) d.core().pattern(), buf+len+(i*4));
+		}
+	}
+
+	return pktLen;
+}
+
+//
+// ------------------ PortInfo --------------------
+//
+PortInfo::PortInfo(uint id, pcap_if_t *dev)
+	: monitor(this)
+{
+    char errbuf[PCAP_ERRBUF_SIZE];
+
+	this->dev = dev;
+	devHandle = pcap_open(dev->name, 65536, PCAP_OPENFLAG_PROMISCUOUS , 1000, 
+			NULL, errbuf);
+	if (devHandle == NULL)
+	{
+		qDebug("Error opening port %s: %s\n", 
+				dev->name, pcap_geterr(devHandle));
+	}
+
+	/* By default, put the interface in statistics mode */
+	if (pcap_setmode(devHandle, MODE_STAT)<0)
+	{
+		qDebug("Error setting statistics mode.\n");
+	}
+
+	d.mutable_port_id()->set_id(id);
+	d.set_name("eth"); // FIXME(MED): suffix portid
+	d.set_description(dev->description);
+	d.set_is_enabled(true);	// FIXME(MED):check
+	d.set_is_oper_up(true); // FIXME(MED):check
+	d.set_is_exclusive_control(false); // FIXME(MED): check
+
+	resetStats();
+
+	// We'll create sendqueue later when required
+	sendQueue = NULL;
+	isSendQueueDirty=true;
+
+	// Start the monitor thread
+	monitor.start();
+}
+
+void PortInfo::update()
+{
+	uchar		pktBuf[2000];
+	pcap_pkthdr	pktHdr;
+
+	qDebug("In %s", __FUNCTION__);
+
+	if (sendQueue)
+		pcap_sendqueue_destroy(sendQueue);
+
+	// TODO(LOW): calculate sendqueue size
+	sendQueue = pcap_sendqueue_alloc(1*MB);
+
+	for (int i = 0; i < streamList.size(); i++)
+	{
+		// FIXME(HI): Testing only
+		//if (streamList[i].d.core().is_enabled())
+		{
+			pktHdr.len = streamList[i].makePacket(pktBuf, sizeof(pktBuf));
+			pktHdr.caplen = pktHdr.len;
+			pktHdr.ts.tv_sec = pktHdr.ts.tv_usec = 0; // FIXME(HI)
+
+			if (-1 == pcap_sendqueue_queue(sendQueue, &pktHdr, 
+						(u_char*) pktBuf))
+			{
+				qDebug("[port %d] sendqueue_queue() failed for streamidx %d\n",
+						id(), i);
+			}
+		}
+	}
+
+	isSendQueueDirty = false;
+}
+
+void PortInfo::startTransmit()
+{
+	int n;
+
+	// TODO(HI): Stream Mode - one pass/continuous
+	n = pcap_sendqueue_transmit(devHandle, sendQueue, false);
+	if (n == 0)
+		qDebug("port %d: send error %s\n", id(), pcap_geterr(devHandle));
+	else
+		qDebug("port %d: sent %d bytes\n", id(), n);
+}
+
+void PortInfo::stopTransmit()
+{
+}
+
+void PortInfo::resetStats()
+{
+	memset((void*) &stats, 0, sizeof(stats));
+}
+
+//
+// ------------------ PortMonitor -------------------
+//
+
+PortInfo::PortMonitor::PortMonitor(PortInfo *port)
+{
+	this->port = port;
+}
+
+void PortInfo::PortMonitor::callback(u_char *state, 
+		const struct pcap_pkthdr *header, const u_char *pkt_data)
+{
+	PortInfo	*port = (PortInfo*) state;
+	quint64 pkts;
+	quint64 bytes;
+
+    pkts  = *((quint64*)(pkt_data + 0));
+    bytes = *((quint64*)(pkt_data + 8));
+
+	port->stats.rxPkts += pkts;
+	port->stats.rxBytes += bytes;
+
+#if 0
+	for (int i=0; i < 16; i++)
+	{
+		qDebug("%02x ", pkt_data[i]);
+	}
+	qDebug("{%d: %llu, %llu}\n", port->id(),
+			pkts, bytes);
+	qDebug("[%d: pkts : %llu]\n", port->id(), port->stats.rxPkts);
+	qDebug("[%d: bytes: %llu]\n", port->id(), port->stats.rxBytes);
+#endif
+}
+
+void PortInfo::PortMonitor::run()
+{
+	int		ret;
+
+	qDebug("before pcap_loop\n");
+
+	/* Start the main loop */
+	ret = pcap_loop(port->devHandle, -1, &PortInfo::PortMonitor::callback, 
+			(PUCHAR) port);
+	//ret = pcap_loop(fp, -1, &updateStats, (PUCHAR)&st_ts);
+
+	switch(ret)
+	{
+		case 0:
+			qDebug("Unexpected return from pcap_loop()\n");
+			break;
+		case -1:
+			qDebug("Unsolicited (error) return from pcap_loop()\n");
+			break;
+		case -2:
+			qDebug("Solicited return from pcap_loop()\n");
+			break;
+		default:
+			qDebug("Unknown return value from pcap_loop()\n");
+	}
+}
+
+/*--------------- MyService ---------------*/
 
 int MyService::getStreamIndex(unsigned int portIdx,
 	unsigned int streamId)
@@ -12,9 +316,9 @@ int MyService::getStreamIndex(unsigned int portIdx,
 
 	Q_ASSERT(portIdx < numPorts);
 
-	for (i = 0; i < portInfo[portIdx].streamList.size(); i++)
+	for (i = 0; i < portInfo[portIdx]->streamList.size(); i++)
 	{
-		if (streamId == portInfo[portIdx].streamList.at(i).d.stream_id().id())
+		if (streamId == portInfo[portIdx]->streamList.at(i).d.stream_id().id())
 			goto _found;
 	}
 
@@ -43,34 +347,19 @@ MyService::MyService(AbstractHost *host)
         goto _fail;
     }
 
-	/* Count number of local ports */
-    for(dev = alldevs; dev != NULL; dev = dev->next)
+	portInfo.clear();
+    /* Count, Populate and Print the list */
+    for(i=0, dev=alldevs; dev!=NULL; i++, dev=dev->next)
+    {
+		portInfo.append(new PortInfo(i, dev));
 		numPorts++;
 
-   	portInfo = new PortInfo[numPorts];
-
-    /* Populate and Print the list */
-    for(i=0, dev=alldevs; (i < numPorts) && (dev!=NULL); i++, dev=dev->next)
-    {
-		portInfo[i].setId(i);
-		portInfo[i].setPcapDev(dev);
 #if 1
         LOG("%d. %s", i, dev->name);
         if (dev->description)
 		{
             LOG(" (%s)\n", dev->description);
 		}
-#endif
-#if 0
-		// FIXME(HI): Testing only!!!!
-		{
-			StreamInfo		s;
-
-			s.d.mutable_stream_id()->set_id(0);
-			portInfo[i].streamList.append(s);
-			s.d.mutable_stream_id()->set_id(1);
-			portInfo[i].streamList.append(s);
-		}
 #endif
     }
     
@@ -86,7 +375,6 @@ _fail:
 
 MyService::~MyService()
 {
-	delete portInfo;
     pcap_freealldevs(alldevs);
 }
 
@@ -103,7 +391,7 @@ void MyService::getPortIdList(
 		::OstProto::PortId	*p;
 
 		p = response->add_port_id();
-		p->set_id(portInfo[i].d.port_id().id());
+		p->set_id(portInfo[i]->d.port_id().id());
 	}
 
 	done->Run();
@@ -126,7 +414,7 @@ const ::OstProto::PortIdList* request,
 			OstProto::Port	*p;
 
 			p = response->add_port();
-			p->CopyFrom(portInfo[idx].d);
+			p->CopyFrom(portInfo[idx]->d);
 		}
 	}
 
@@ -151,11 +439,11 @@ const ::OstProto::PortId* request,
 	}
 
 	response->mutable_port_id()->set_id(portIdx);
-	for (int j = 0; j < portInfo[portIdx].streamList.size(); j++)
+	for (int j = 0; j < portInfo[portIdx]->streamList.size(); j++)
 	{
 		OstProto::StreamId	*s, *q;
 
-		q = portInfo[portIdx].streamList[j].d.mutable_stream_id();
+		q = portInfo[portIdx]->streamList[j].d.mutable_stream_id();
 
 		s = response->add_stream_id();
 		s->CopyFrom(*q);
@@ -192,7 +480,7 @@ const ::OstProto::StreamIdList* request,
 			continue;		// TODO(LOW): Partial status of RPC
 
 		s = response->add_stream();
-		s->CopyFrom(portInfo[portIdx].streamList[streamIndex].d);
+		s->CopyFrom(portInfo[portIdx]->streamList[streamIndex].d);
 	}
 
 _exit:
@@ -229,10 +517,11 @@ const ::OstProto::StreamIdList* request,
 		// expected in a subsequent "modifyStream" request - set the stream id
 		// now itself however!!!
 		s.d.mutable_stream_id()->CopyFrom(request->stream_id(i));
-		portInfo[portIdx].streamList.append(s);
+		portInfo[portIdx]->streamList.append(s);
 
 		// TODO(LOW): fill-in response "Ack"????
 	}
+	portInfo[portIdx]->setDirty(true);
 _exit:
 	done->Run();
 }
@@ -262,10 +551,11 @@ const ::OstProto::StreamIdList* request,
 		if (streamIndex < 0)
 			continue;		// TODO(LOW): Partial status of RPC
 
-		portInfo[portIdx].streamList.removeAt(streamIndex);
+		portInfo[portIdx]->streamList.removeAt(streamIndex);
 
 		// TODO(LOW): fill-in response "Ack"????
 	}
+	portInfo[portIdx]->setDirty(true);
 _exit:
 	done->Run();
 }
@@ -295,11 +585,12 @@ const ::OstProto::StreamConfigList* request,
 		if (streamIndex < 0)
 			continue;		// TODO(LOW): Partial status of RPC
 
-		portInfo[portIdx].streamList[streamIndex].d.MergeFrom(
+		portInfo[portIdx]->streamList[streamIndex].d.MergeFrom(
 			request->stream(i));
 
 		// TODO(LOW): fill-in response "Ack"????
 	}
+	portInfo[portIdx]->setDirty(true);
 _exit:
 	done->Run();
 }
@@ -310,7 +601,33 @@ const ::OstProto::PortIdList* request,
 ::google::protobuf::Closure* done)
 {
 	qDebug("In %s", __PRETTY_FUNCTION__);
-	controller->SetFailed("Not Implemented");
+
+	// If any of the ports in the request are dirty, first update them
+	for (int i=0; i < request->port_id_size(); i++)
+	{
+		uint portIdx;
+
+		portIdx = request->port_id(i).id();
+		if (portIdx >= numPorts)
+			continue; 	// FIXME(MED): partial RPC?
+
+		if (portInfo[portIdx]->isDirty())
+			portInfo[portIdx]->update();
+	}
+
+	for (int i=0; i < request->port_id_size(); i++)
+	{
+		uint portIdx;
+
+		portIdx = request->port_id(i).id();
+		if (portIdx >= numPorts)
+			continue; 	// FIXME(MED): partial RPC?
+
+		portInfo[portIdx]->startTransmit();
+	}
+
+	// TODO(LOW): fill-in response "Ack"????
+
 	done->Run();
 }
 
@@ -320,7 +637,18 @@ const ::OstProto::PortIdList* request,
 ::google::protobuf::Closure* done)
 {
 	qDebug("In %s", __PRETTY_FUNCTION__);
-	controller->SetFailed("Not Implemented");
+
+	for (int i=0; i < request->port_id_size(); i++)
+	{
+		uint portIdx;
+
+		portIdx = request->port_id(i).id();
+		if (portIdx >= numPorts)
+			continue; 	// FIXME(MED): partial RPC?
+
+		portInfo[portIdx]->stopTransmit();
+	}
+	// TODO(LOW): fill-in response "Ack"????
 	done->Run();
 }
 
@@ -360,7 +688,30 @@ const ::OstProto::PortIdList* request,
 ::google::protobuf::Closure* done)
 {
 	qDebug("In %s", __PRETTY_FUNCTION__);
-	controller->SetFailed("Not Implemented");
+
+	for (int i=0; i < request->port_id_size(); i++)
+	{
+		uint 	portidx;
+		::OstProto::PortStats	*s;
+
+		portidx = request->port_id(i).id();
+		if (portidx >= numPorts)
+			continue; 	// FIXME(med): partial rpc?
+
+		s = response->add_port_stats();
+		s->mutable_port_id()->set_id(request->port_id(i).id());
+
+		s->set_rx_pkts(portInfo[portidx]->stats.rxPkts);
+		s->set_rx_bytes(portInfo[portidx]->stats.rxBytes);
+		s->set_rx_pps(portInfo[portidx]->stats.rxPps);
+		s->set_rx_bps(portInfo[portidx]->stats.rxBps);
+
+		s->set_tx_pkts(portInfo[portidx]->stats.txPkts);
+		s->set_tx_bytes(portInfo[portidx]->stats.txBytes);
+		s->set_tx_pps(portInfo[portidx]->stats.txPps);
+		s->set_tx_bps(portInfo[portidx]->stats.txBps);
+	}
+
 	done->Run();
 }
 
@@ -370,7 +721,19 @@ const ::OstProto::PortIdList* request,
 ::google::protobuf::Closure* done)
 {
 	qDebug("In %s", __PRETTY_FUNCTION__);
-	controller->SetFailed("Not Implemented");
+
+	for (int i=0; i < request->port_id_size(); i++)
+	{
+		uint portIdx;
+
+		portIdx = request->port_id(i).id();
+		if (portIdx >= numPorts)
+			continue; 	// FIXME(MED): partial RPC?
+
+		portInfo[portIdx]->resetStats();
+	}
+	// TODO(LOW): fill-in response "Ack"????
+
 	done->Run();
 }
 
diff --git a/server/myservice.h b/server/myservice.h
index 45577be..69e2f71 100644
--- a/server/myservice.h
+++ b/server/myservice.h
@@ -10,7 +10,9 @@
 #include "../common/protocol.pb.h"
 #include "abstracthost.h"
 #include <pcap.h>
+#include <QtGlobal>
 #include <QList>
+#include <QThread>
 
 #include "../rpc/pbhelper.h"
 
@@ -22,10 +24,12 @@ class MyService;
 class StreamInfo
 {
 	friend class MyService;
+	friend class PortInfo;
 
 	OstProto::Stream	d;
 
 	StreamInfo() { PbHelper pbh; pbh.ForceSetSingularDefault(&d); }
+	int StreamInfo::makePacket(uchar *buf, int bufMaxSize);
 };
 
 
@@ -33,34 +37,65 @@ class PortInfo
 {
 	friend class MyService;
 
+	class PortMonitor: public QThread
+	{
+		friend class PortInfo;
+
+		PortInfo	*port;
+	public:
+		PortMonitor(PortInfo *port);
+		static void callback(u_char *state, 
+			const struct pcap_pkthdr *header, const u_char *pkt_data);
+		void run();
+	};
+
 	OstProto::Port			d;
+
 	pcap_if_t				*dev;
+	pcap_t					*devHandle;
+	pcap_send_queue			*sendQueue;
+	bool					isSendQueueDirty;
+	PortMonitor				monitor;
+
+	struct PortStats
+	{
+		quint64	rxPkts;
+		quint64	rxBytes;
+		quint64	rxPps;
+		quint64	rxBps;
+
+		quint64	txPkts;
+		quint64	txBytes;
+		quint64	txPps;
+		quint64	txBps;
+	};
+
+	struct PortStats		stats;
 
 	/*! StreamInfo::d::stream_id and index into streamList[] are NOT same! */
 	QList<StreamInfo>		streamList;
 
 public:
-	// TODO(LOW): Both setId and setPcapDev() should together form the ctor
-	void setId(unsigned int id) { d.mutable_port_id()->set_id(id); }
-	void setPcapDev(pcap_if_t	*dev)
-	{
-		this->dev = dev;
-		d.set_name("eth"); // FIXME(MED): suffix portid
-		d.set_description(dev->description);
-		d.set_is_enabled(true);	// FIXME(MED):check
-		d.set_is_oper_up(true); // FIXME(MED):check
-		d.set_is_exclusive_control(false); // FIXME(MED): check
-	}
+	PortInfo::PortInfo(uint id, pcap_if_t *dev);
+	uint id() { return d.port_id().id(); }
+	bool isDirty() { return isSendQueueDirty; }
+	void setDirty(bool dirty) { isSendQueueDirty = dirty; }
+	void update();
+	void startTransmit();
+	void stopTransmit();
+	void resetStats();
 };
 
+
 class MyService: public OstProto::OstService
 {
 	AbstractHost	*host;
 	char			logStr[1024];
 
 	uint		 		numPorts;
+
 	/*! PortInfo::d::port_id and index into portInfo[] are same! */
-	PortInfo		*portInfo;
+	QList<PortInfo*>	portInfo;
 	pcap_if_t		*alldevs;
 
 	int getStreamIndex(unsigned int portIdx,unsigned int streamId);