diff --git a/src/Application.cpp b/src/Application.cpp
index 758fae4ae..f4f1e99d1 100644
--- a/src/Application.cpp
+++ b/src/Application.cpp
@@ -18,7 +18,7 @@
 #include <boost/thread.hpp>
 
 SETUP_LOG();
-
+LogPartition TaggedCachePartition("TaggedCache");
 Application* theApp = NULL;
 
 DatabaseCon::DatabaseCon(const std::string& strName, const char *initStrings[], int initCount)
@@ -39,7 +39,7 @@ DatabaseCon::~DatabaseCon()
 
 Application::Application() :
 	mIOWork(mIOService), mAuxWork(mAuxService), mUNL(mIOService),
-	mNetOps(mIOService, &mMasterLedger), mTempNodeCache(16384, 90), mHashedObjectStore(16384, 300),
+	mNetOps(mIOService, &mMasterLedger), mTempNodeCache("NodeCache", 16384, 90), mHashedObjectStore(16384, 300),
 	mSNTPClient(mAuxService), mRpcDB(NULL), mTxnDB(NULL), mLedgerDB(NULL), mWalletDB(NULL),
 	mHashNodeDB(NULL), mNetNodeDB(NULL),
 	mConnectionPool(mIOService), mPeerDoor(NULL), mRPCDoor(NULL), mSweepTimer(mAuxService)
diff --git a/src/Application.h b/src/Application.h
index 288f505bc..aeca10973 100644
--- a/src/Application.h
+++ b/src/Application.h
@@ -95,7 +95,11 @@ public:
 	HashedObjectStore& getHashedObjectStore()		{ return mHashedObjectStore; }
 	ValidationCollection& getValidations()			{ return mValidations; }
 	JobQueue& getJobQueue()							{ return mJobQueue; }
+	SuppressionTable& getSuppression()				{ return mSuppressions; }
+
 	bool isNew(const uint256& s)					{ return mSuppressions.addSuppression(s); }
+	bool isNew(const uint256& s, uint64 p)			{ return mSuppressions.addSuppressionPeer(s, p); }
+	bool isNewFlag(const uint256& s, int f)			{ return mSuppressions.setFlag(s, f); }
 	bool running()									{ return mTxnDB != NULL; }
 	bool getSystemTimeOffset(int& offset)			{ return mSNTPClient.getOffset(offset); }
 
diff --git a/src/CallRPC.cpp b/src/CallRPC.cpp
index 50896b858..a8337198e 100644
--- a/src/CallRPC.cpp
+++ b/src/CallRPC.cpp
@@ -36,7 +36,7 @@ std::string EncodeBase64(const std::string& s)
 	BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
 	bmem = BIO_new(BIO_s_mem());
 	b64 = BIO_push(b64, bmem);
-	BIO_write(b64, s.c_str(), s.size());
+	BIO_write(b64, s.data(), s.size());
 	(void) BIO_flush(b64);
 	BIO_get_mem_ptr(b64, &bptr);
 
diff --git a/src/ConnectionPool.cpp b/src/ConnectionPool.cpp
index 79f0c82a8..6b01a1439 100644
--- a/src/ConnectionPool.cpp
+++ b/src/ConnectionPool.cpp
@@ -251,22 +251,30 @@ int ConnectionPool::relayMessage(Peer* fromPeer, const PackedMessage::pointer& m
 	return sentTo;
 }
 
-int ConnectionPool::relayMessage(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg)
-{
-	int sentTo = 0;
+void ConnectionPool::relayMessageBut(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg)
+{ // Relay message to all but the specified peers
 	boost::mutex::scoped_lock sl(mPeerLock);
 
 	BOOST_FOREACH(naPeer pair, mConnectedMap)
 	{
 		Peer::ref peer	= pair.second;
 		if (peer->isConnected() && (fromPeers.count(peer->getPeerId()) == 0))
-		{
-			++sentTo;
 			peer->sendPacket(msg);
-		}
 	}
 
-	return sentTo;
+}
+
+void ConnectionPool::relayMessageTo(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg)
+{ // Relay message to the specified peers
+	boost::mutex::scoped_lock sl(mPeerLock);
+
+	BOOST_FOREACH(naPeer pair, mConnectedMap)
+	{
+		Peer::ref peer	= pair.second;
+		if (peer->isConnected() && (fromPeers.count(peer->getPeerId()) > 0))
+			peer->sendPacket(msg);
+	}
+
 }
 
 // Schedule a connection via scanning.
@@ -305,7 +313,7 @@ Peer::pointer ConnectionPool::peerConnect(const std::string& strIp, int iPort)
 
 		if ((it = mIpMap.find(pipPeer)) == mIpMap.end())
 		{
-			Peer::pointer	ppNew(Peer::create(theApp->getIOService(), mCtx));
+			Peer::pointer	ppNew(Peer::create(theApp->getIOService(), mCtx, ++mLastPeer));
 
 			// Did not find it.  Not already connecting or connected.
 			ppNew->connect(strIp, iPort);
diff --git a/src/ConnectionPool.h b/src/ConnectionPool.h
index f230bd0ec..e3801ef73 100644
--- a/src/ConnectionPool.h
+++ b/src/ConnectionPool.h
@@ -62,7 +62,8 @@ public:
 
 	// Send message to network.
 	int relayMessage(Peer* fromPeer, const PackedMessage::pointer& msg);
-	int relayMessage(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg);
+	void relayMessageTo(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg);
+	void relayMessageBut(const std::set<uint64>& fromPeers, const PackedMessage::pointer& msg);
 
 	// Manual connection request.
 	// Queue for immediate scanning.
diff --git a/src/DeterministicKeys.cpp b/src/DeterministicKeys.cpp
index 1f1e1a0c9..622c98598 100644
--- a/src/DeterministicKeys.cpp
+++ b/src/DeterministicKeys.cpp
@@ -19,7 +19,7 @@ uint128 CKey::PassPhraseToKey(const std::string& passPhrase)
 {
 	Serializer s;
 
-	s.addRaw(passPhrase.c_str(), passPhrase.size());
+	s.addRaw(passPhrase);
 	uint256	hash256	= s.getSHA512Half();
 	uint128 ret(hash256);
 
diff --git a/src/HashedObject.cpp b/src/HashedObject.cpp
index bff9c34c6..9fc95a825 100644
--- a/src/HashedObject.cpp
+++ b/src/HashedObject.cpp
@@ -12,7 +12,7 @@ SETUP_LOG();
 DECLARE_INSTANCE(HashedObject);
 
 HashedObjectStore::HashedObjectStore(int cacheSize, int cacheAge) :
-	mCache(cacheSize, cacheAge), mWritePending(false)
+	mCache("HashedObjectStore", cacheSize, cacheAge), mWritePending(false)
 {
 	mWriteSet.reserve(128);
 }
diff --git a/src/Ledger.cpp b/src/Ledger.cpp
index 69807417e..ec44a5dc9 100644
--- a/src/Ledger.cpp
+++ b/src/Ledger.cpp
@@ -1073,7 +1073,7 @@ int Ledger::getPendingSaves()
 
 void Ledger::pendSave(bool fromConsensus)
 {
-	if (!fromConsensus && !theApp->isNew(getHash()))
+	if (!fromConsensus && !theApp->isNewFlag(getHash(), SF_SAVED))
 		return;
 
 	boost::thread thread(boost::bind(&Ledger::saveAcceptedLedger, shared_from_this(), fromConsensus));
diff --git a/src/LedgerAcquire.cpp b/src/LedgerAcquire.cpp
index ca26c885c..a9c4cf8ca 100644
--- a/src/LedgerAcquire.cpp
+++ b/src/LedgerAcquire.cpp
@@ -11,6 +11,7 @@
 #include "HashPrefixes.h"
 
 SETUP_LOG();
+DECLARE_INSTANCE(PeerSet);
 
 #define LA_DEBUG
 #define LEDGER_ACQUIRE_TIMEOUT 750
diff --git a/src/LedgerAcquire.h b/src/LedgerAcquire.h
index 6044d1047..2dcf01885 100644
--- a/src/LedgerAcquire.h
+++ b/src/LedgerAcquire.h
@@ -14,9 +14,12 @@
 #include "Ledger.h"
 #include "Peer.h"
 #include "TaggedCache.h"
+#include "InstanceCounter.h"
 #include "../obj/src/ripple.pb.h"
 
-class PeerSet
+DEFINE_INSTANCE(PeerSet);
+
+class PeerSet : private IS_INSTANCE(PeerSet)
 {
 protected:
 	uint256 mHash;
diff --git a/src/LedgerConsensus.cpp b/src/LedgerConsensus.cpp
index beeaaa400..15e439784 100644
--- a/src/LedgerConsensus.cpp
+++ b/src/LedgerConsensus.cpp
@@ -24,6 +24,7 @@ typedef std::pair<const uint160, LedgerProposal::pointer> u160_prop_pair;
 typedef std::pair<const uint256, LCTransaction::pointer> u256_lct_pair;
 
 SETUP_LOG();
+DECLARE_INSTANCE(LedgerConsensus);
 
 TransactionAcquire::TransactionAcquire(const uint256& hash) : PeerSet(hash, TX_ACQUIRE_TIMEOUT), mHaveRoot(false)
 {
@@ -845,7 +846,7 @@ void LedgerConsensus::addDisputedTransaction(const uint256& txID, const std::vec
 			txn->setVote(pit.first, cit->second->hasItem(txID));
 	}
 
-	if (!ourVote && theApp->isNew(txID))
+	if (!ourVote && theApp->isNewFlag(txID, SF_RELAYED))
 	{
 		ripple::TMTransaction msg;
 		msg.set_rawtransaction(&(tx.front()), tx.size());
diff --git a/src/LedgerConsensus.h b/src/LedgerConsensus.h
index 38a2dde9f..6eae25750 100644
--- a/src/LedgerConsensus.h
+++ b/src/LedgerConsensus.h
@@ -17,6 +17,9 @@
 #include "Peer.h"
 #include "CanonicalTXSet.h"
 #include "TransactionEngine.h"
+#include "InstanceCounter.h"
+
+DEFINE_INSTANCE(LedgerConsensus);
 
 class TransactionAcquire : public PeerSet, public boost::enable_shared_from_this<TransactionAcquire>
 { // A transaction set we are trying to acquire
@@ -78,7 +81,7 @@ enum LCState
 	lcsACCEPTED,		// We have accepted/validated a new last closed ledger
 };
 
-class LedgerConsensus : public boost::enable_shared_from_this<LedgerConsensus>
+class LedgerConsensus : public boost::enable_shared_from_this<LedgerConsensus>, IS_INSTANCE(LedgerConsensus)
 {
 protected:
 	LCState mState;
diff --git a/src/LedgerEntrySet.cpp b/src/LedgerEntrySet.cpp
index 3134f1bd0..3224f07eb 100644
--- a/src/LedgerEntrySet.cpp
+++ b/src/LedgerEntrySet.cpp
@@ -7,6 +7,8 @@
 #include "Log.h"
 
 SETUP_LOG();
+DECLARE_INSTANCE(LedgerEntrySetEntry);
+DECLARE_INSTANCE(LedgerEntrySet)
 
 // #define META_DEBUG
 
diff --git a/src/LedgerEntrySet.h b/src/LedgerEntrySet.h
index 1554ab89e..51c61b269 100644
--- a/src/LedgerEntrySet.h
+++ b/src/LedgerEntrySet.h
@@ -7,6 +7,10 @@
 #include "TransactionMeta.h"
 #include "Ledger.h"
 #include "TransactionErr.h"
+#include "InstanceCounter.h"
+
+DEFINE_INSTANCE(LedgerEntrySetEntry);
+DEFINE_INSTANCE(LedgerEntrySet);
 
 enum LedgerEntryAction
 {
@@ -17,7 +21,7 @@ enum LedgerEntryAction
 	taaCREATE,	// Newly created.
 };
 
-class LedgerEntrySetEntry
+class LedgerEntrySetEntry : private IS_INSTANCE(LedgerEntrySetEntry)
 {
 public:
 	SLE::pointer		mEntry;
@@ -28,7 +32,7 @@ public:
 };
 
 
-class LedgerEntrySet
+class LedgerEntrySet : private IS_INSTANCE(LedgerEntrySet)
 {
 protected:
 	Ledger::pointer mLedger;
diff --git a/src/LedgerHistory.cpp b/src/LedgerHistory.cpp
index 854fc011f..0c084d2f7 100644
--- a/src/LedgerHistory.cpp
+++ b/src/LedgerHistory.cpp
@@ -10,16 +10,16 @@
 #include "Application.h"
 
 #ifndef CACHED_LEDGER_NUM
-#define CACHED_LEDGER_NUM 512
+#define CACHED_LEDGER_NUM 128
 #endif
 
 #ifndef CACHED_LEDGER_AGE
 #define CACHED_LEDGER_AGE 900
 #endif
 
-// FIXME: Need to clean up ledgers by index, probably should switch to just mapping sequence to hash
+// FIXME: Need to clean up ledgers by index at some point
 
-LedgerHistory::LedgerHistory() : mLedgersByHash(CACHED_LEDGER_NUM, CACHED_LEDGER_AGE)
+LedgerHistory::LedgerHistory() : mLedgersByHash("LedgerCache", CACHED_LEDGER_NUM, CACHED_LEDGER_AGE)
 { ; }
 
 void LedgerHistory::addLedger(Ledger::pointer ledger)
@@ -36,7 +36,7 @@ void LedgerHistory::addAcceptedLedger(Ledger::pointer ledger, bool fromConsensus
 	assert(ledger);
 	assert(ledger->isAccepted());
 	assert(ledger->isImmutable());
-	mLedgersByIndex.insert(std::make_pair(ledger->getLedgerSeq(), ledger));
+	mLedgersByIndex[ledger->getLedgerSeq()] = ledger->getHash();
 
 	ledger->pendSave(fromConsensus);
 }
@@ -44,9 +44,13 @@ void LedgerHistory::addAcceptedLedger(Ledger::pointer ledger, bool fromConsensus
 Ledger::pointer LedgerHistory::getLedgerBySeq(uint32 index)
 {
 	boost::recursive_mutex::scoped_lock sl(mLedgersByHash.peekMutex());
-	std::map<uint32, Ledger::pointer>::iterator it(mLedgersByIndex.find(index));
+	std::map<uint32, uint256>::iterator it(mLedgersByIndex.find(index));
 	if (it != mLedgersByIndex.end())
-		return it->second;
+	{
+		uint256 hash = it->second;
+		sl.unlock();
+		return getLedgerByHash(hash);
+	}
 	sl.unlock();
 
 	Ledger::pointer ret(Ledger::loadByIndex(index));
@@ -56,8 +60,8 @@ Ledger::pointer LedgerHistory::getLedgerBySeq(uint32 index)
 
 	sl.lock();
 	mLedgersByHash.canonicalize(ret->getHash(), ret);
-	mLedgersByIndex.insert(std::make_pair(index, ret));
-	return ret;
+	mLedgersByIndex[ret->getLedgerSeq()] = ret->getHash();
+	return (ret->getLedgerSeq() == index) ? ret : Ledger::pointer();
 }
 
 Ledger::pointer LedgerHistory::getLedgerByHash(const uint256& hash)
@@ -91,7 +95,7 @@ Ledger::pointer LedgerHistory::canonicalizeLedger(Ledger::pointer ledger, bool s
 	boost::recursive_mutex::scoped_lock sl(mLedgersByHash.peekMutex());
 	mLedgersByHash.canonicalize(h, ledger);
 	if (ledger->isAccepted())
-		mLedgersByIndex[ledger->getLedgerSeq()] = ledger;
+		mLedgersByIndex[ledger->getLedgerSeq()] = ledger->getHash();
 	return ledger;
 }
 
diff --git a/src/LedgerHistory.h b/src/LedgerHistory.h
index 51ecaf714..1709e5954 100644
--- a/src/LedgerHistory.h
+++ b/src/LedgerHistory.h
@@ -7,7 +7,7 @@
 class LedgerHistory
 {
 	TaggedCache<uint256, Ledger> mLedgersByHash;
-	std::map<uint32, Ledger::pointer> mLedgersByIndex; // accepted ledgers
+	std::map<uint32, uint256> mLedgersByIndex; // accepted ledgers
 
 public:
 	LedgerHistory();
diff --git a/src/NetworkOPs.cpp b/src/NetworkOPs.cpp
index 088a717f2..966570be6 100644
--- a/src/NetworkOPs.cpp
+++ b/src/NetworkOPs.cpp
@@ -112,7 +112,7 @@ Transaction::pointer NetworkOPs::submitTransaction(const Transaction::pointer& t
 	return tpTransNew;
 }
 
-Transaction::pointer NetworkOPs::processTransaction(Transaction::pointer trans, Peer* source)
+Transaction::pointer NetworkOPs::processTransaction(Transaction::pointer trans)
 {
 	Transaction::pointer dbtx = theApp->getMasterTransaction().fetch(trans->getID(), true);
 	if (dbtx) return dbtx;
@@ -160,27 +160,28 @@ Transaction::pointer NetworkOPs::processTransaction(Transaction::pointer trans,
 		trans->setStatus(INCLUDED);
 		theApp->getMasterTransaction().canonicalize(trans, true);
 
-// FIXME: Need code to get all accounts affected by a transaction and re-synch
-// any of them that affect local accounts cached in memory. Or, we need to
-// no cache the account balance information and always get it from the current ledger
-//		theApp->getWallet().applyTransaction(trans);
+		std::set<uint64> peers;
+		if (theApp->getSuppression().swapSet(trans->getID(), peers, SF_RELAYED))
+		{
+			ripple::TMTransaction tx;
+			Serializer s;
+			trans->getSTransaction()->add(s);
+			tx.set_rawtransaction(&s.getData().front(), s.getLength());
+			tx.set_status(ripple::tsCURRENT);
+			tx.set_receivetimestamp(getNetworkTimeNC());
 
-		ripple::TMTransaction tx;
-		Serializer s;
-		trans->getSTransaction()->add(s);
-		tx.set_rawtransaction(&s.getData().front(), s.getLength());
-		tx.set_status(ripple::tsCURRENT);
-		tx.set_receivetimestamp(getNetworkTimeNC());
-
-		PackedMessage::pointer packet = boost::make_shared<PackedMessage>(tx, ripple::mtTRANSACTION);
-		int sentTo = theApp->getConnectionPool().relayMessage(source, packet);
-		cLog(lsINFO) << "Transaction relayed to " << sentTo << " node(s)";
+			PackedMessage::pointer packet = boost::make_shared<PackedMessage>(tx, ripple::mtTRANSACTION);
+			theApp->getConnectionPool().relayMessageBut(peers, packet);
+		}
 
 		return trans;
 	}
 
 	cLog(lsDEBUG) << "Status other than success " << r;
-	if ((mMode != omFULL) && (mMode != omTRACKING) && (theApp->isNew(trans->getID())))
+	std::set<uint64> peers;
+
+	if ((mMode != omFULL) && (mMode != omTRACKING) &&
+		theApp->getSuppression().swapSet(trans->getID(), peers, SF_RELAYED))
 	{
 		ripple::TMTransaction tx;
 		Serializer s;
@@ -189,7 +190,7 @@ Transaction::pointer NetworkOPs::processTransaction(Transaction::pointer trans,
 		tx.set_status(ripple::tsCURRENT);
 		tx.set_receivetimestamp(getNetworkTimeNC());
 		PackedMessage::pointer packet = boost::make_shared<PackedMessage>(tx, ripple::mtTRANSACTION);
-		theApp->getConnectionPool().relayMessage(source, packet);
+		theApp->getConnectionPool().relayMessageTo(peers, packet);
 	}
 
 	trans->setStatus(INVALID);
@@ -694,50 +695,38 @@ bool NetworkOPs::haveConsensusObject()
 }
 
 // <-- bool: true to relay
-bool NetworkOPs::recvPropose(uint32 proposeSeq, const uint256& proposeHash, const uint256& prevLedger,
-	uint32 closeTime, const std::string& pubKey, const std::string& signature, const RippleAddress& nodePublic)
+bool NetworkOPs::recvPropose(const uint256& suppression, uint32 proposeSeq, const uint256& proposeHash,
+	const uint256& prevLedger, uint32 closeTime, const std::string& signature,
+	const RippleAddress& nodePublic)
 {
 	// JED: does mConsensus need to be locked?
 
 	// XXX Validate key.
 	// XXX Take a vuc for pubkey.
 
-	// Get a preliminary hash to use to suppress duplicates
-	Serializer s(256);
-	s.add256(proposeHash);
-	s.add256(prevLedger);
-	s.add32(proposeSeq);
-	s.add32(closeTime);
-	s.addRaw(pubKey);
-	s.addRaw(signature);
-	if (!theApp->isNew(s.getSHA512Half()))
-		return false;
-
-	RippleAddress naPeerPublic = RippleAddress::createNodePublic(strCopy(pubKey));
-
 	if (!haveConsensusObject())
 	{
 		cLog(lsINFO) << "Received proposal outside consensus window";
 		return mMode != omFULL;
 	}
 
-	if (mConsensus->isOurPubKey(naPeerPublic))
+	if (mConsensus->isOurPubKey(nodePublic))
 	{
 		cLog(lsTRACE) << "Received our own validation";
 		return false;
 	}
 
 	// Is this node on our UNL?
-	if (!theApp->getUNL().nodeInUNL(naPeerPublic))
+	if (!theApp->getUNL().nodeInUNL(nodePublic))
 	{
-		cLog(lsINFO) << "Untrusted proposal: " << naPeerPublic.humanNodePublic() << " " << proposeHash;
+		cLog(lsINFO) << "Untrusted proposal: " << nodePublic.humanNodePublic() << " " << proposeHash;
 		return true;
 	}
 
 	if (prevLedger.isNonZero())
 	{ // proposal includes a previous ledger
 		LedgerProposal::pointer proposal =
-			boost::make_shared<LedgerProposal>(prevLedger, proposeSeq, proposeHash, closeTime, naPeerPublic);
+			boost::make_shared<LedgerProposal>(prevLedger, proposeSeq, proposeHash, closeTime, nodePublic);
 		if (!proposal->checkSign(signature))
 		{
 			cLog(lsWARNING) << "New-style ledger proposal fails signature check";
@@ -750,7 +739,7 @@ bool NetworkOPs::recvPropose(uint32 proposeSeq, const uint256& proposeHash, cons
 	}
 
 	LedgerProposal::pointer proposal =
-		boost::make_shared<LedgerProposal>(mConsensus->getLCL(), proposeSeq, proposeHash, closeTime, naPeerPublic);
+		boost::make_shared<LedgerProposal>(mConsensus->getLCL(), proposeSeq, proposeHash, closeTime, nodePublic);
 	if (!proposal->checkSign(signature))
 	{ // Note that if the LCL is different, the signature check will fail
 		cLog(lsWARNING) << "Ledger proposal fails signature check";
diff --git a/src/NetworkOPs.h b/src/NetworkOPs.h
index 5c54c3a16..cd5243b26 100644
--- a/src/NetworkOPs.h
+++ b/src/NetworkOPs.h
@@ -121,7 +121,7 @@ public:
 	//
 	Transaction::pointer submitTransaction(const Transaction::pointer& tpTrans);
 
-	Transaction::pointer processTransaction(Transaction::pointer transaction, Peer* source = NULL);
+	Transaction::pointer processTransaction(Transaction::pointer transaction);
 	Transaction::pointer findTransactionByID(const uint256& transactionID);
 	int findTransactionsBySource(const uint256& uLedger, std::list<Transaction::pointer>&, const RippleAddress& sourceAccount,
 		uint32 minSeq, uint32 maxSeq);
@@ -168,8 +168,8 @@ public:
 		const std::vector<unsigned char>& myNode, std::list< std::vector<unsigned char> >& newNodes);
 
 	// ledger proposal/close functions
-	bool recvPropose(uint32 proposeSeq, const uint256& proposeHash, const uint256& prevLedger, uint32 closeTime,
-		const std::string& pubKey, const std::string& signature, const RippleAddress& nodePublic);
+	bool recvPropose(const uint256& suppression, uint32 proposeSeq, const uint256& proposeHash,
+		const uint256& prevLedger, uint32 closeTime, const std::string& signature, const RippleAddress& nodePublic);
 	bool gotTXData(const boost::shared_ptr<Peer>& peer, const uint256& hash,
 		const std::list<SHAMapNode>& nodeIDs, const std::list< std::vector<unsigned char> >& nodeData);
 	bool recvValidation(const SerializedValidation::pointer& val);
diff --git a/src/Peer.cpp b/src/Peer.cpp
index 3b8a10f88..83f8f62ad 100644
--- a/src/Peer.cpp
+++ b/src/Peer.cpp
@@ -24,14 +24,14 @@ DECLARE_INSTANCE(Peer);
 // Node has this long to verify its identity from connection accepted or connection attempt.
 #define NODE_VERIFY_SECONDS		15
 
-Peer::Peer(boost::asio::io_service& io_service, boost::asio::ssl::context& ctx) :
+Peer::Peer(boost::asio::io_service& io_service, boost::asio::ssl::context& ctx, uint64 peerID) :
 	mHelloed(false),
 	mDetaching(false),
+	mPeerId(peerID),
 	mSocketSsl(io_service, ctx),
 	mVerifyTimer(io_service)
 {
 	cLog(lsDEBUG) << "CREATING PEER: " << ADDRESS(this);
-	mPeerId = theApp->getConnectionPool().assignPeerId();
 }
 
 void Peer::handle_write(const boost::system::error_code& error, size_t bytes_transferred)
@@ -708,8 +708,12 @@ void Peer::recvTransaction(ripple::TMTransaction& packet)
 		SerializerIterator sit(s);
 		SerializedTransaction::pointer stx = boost::make_shared<SerializedTransaction>(boost::ref(sit));
 
+		if (!theApp->isNew(stx->getTransactionID(), mPeerId))
+			return;
+
 		tx = boost::make_shared<Transaction>(stx, true);
-		if (tx->getStatus() == INVALID) throw(0);
+		if (tx->getStatus() == INVALID)
+			throw(0);
 #ifndef TRUST_NETWORK
 	}
 	catch (...)
@@ -723,7 +727,7 @@ void Peer::recvTransaction(ripple::TMTransaction& packet)
 	}
 #endif
 
-	tx = theApp->getOPs().processTransaction(tx, this);
+	tx = theApp->getOPs().processTransaction(tx);
 
 	if(tx->getStatus() != INCLUDED)
 	{ // transaction wasn't accepted into ledger
@@ -736,7 +740,7 @@ void Peer::recvTransaction(ripple::TMTransaction& packet)
 void Peer::recvPropose(ripple::TMProposeSet& packet)
 {
 	if ((packet.currenttxhash().size() != 32) || (packet.nodepubkey().size() < 28) ||
-		(packet.signature().size() < 56))
+		(packet.signature().size() < 56) || (packet.nodepubkey().size() > 128) || (packet.signature().size() > 128))
 	{
 		cLog(lsWARNING) << "Received proposal is malformed";
 		return;
@@ -748,8 +752,23 @@ void Peer::recvPropose(ripple::TMProposeSet& packet)
 	if ((packet.has_previousledger()) && (packet.previousledger().size() == 32))
 		memcpy(prevLedger.begin(), packet.previousledger().data(), 32);
 
-	if(theApp->getOPs().recvPropose(packet.proposeseq(), currentTxHash, prevLedger, packet.closetime(),
-		packet.nodepubkey(), packet.signature(), mNodePublic))
+	Serializer s(512);
+	s.add256(currentTxHash);
+	s.add256(prevLedger);
+	s.add32(packet.proposeseq());
+	s.add32(packet.closetime());
+	s.addVL(packet.nodepubkey());
+	s.addVL(packet.signature());
+	uint256 suppression = s.getSHA512Half();
+
+	if (!theApp->isNew(suppression, mPeerId))
+		return;
+
+	RippleAddress nodePublic = RippleAddress::createNodePublic(strCopy(packet.nodepubkey()));
+//	bool isTrusted = theApp->getUNL().nodeInUNL(nodePublic);
+
+	if(theApp->getOPs().recvPropose(suppression, packet.proposeseq(), currentTxHash, prevLedger, packet.closetime(),
+		packet.signature(), nodePublic))
 	{ // FIXME: Not all nodes will want proposals 
 		PackedMessage::pointer message = boost::make_shared<PackedMessage>(packet, ripple::mtPROPOSE_LEDGER);
 		theApp->getConnectionPool().relayMessage(this, message);
@@ -788,11 +807,11 @@ static void checkValidation(Job&, SerializedValidation::pointer val, uint256 sig
 			return;
 		}
 
-		if (theApp->getOPs().recvValidation(val))
+		std::set<uint64> peers;
+		if (theApp->getOPs().recvValidation(val) && theApp->getSuppression().swapSet(signingHash, peers, SF_RELAYED))
 		{
-			Peer::pointer pp = peer.lock();
 			PackedMessage::pointer message = boost::make_shared<PackedMessage>(*packet, ripple::mtVALIDATION);
-			theApp->getConnectionPool().relayMessage(pp ? pp.get() : NULL, message);
+			theApp->getConnectionPool().relayMessageBut(peers, message);
 		}
 	}
 #ifndef TRUST_NETWORK
@@ -822,7 +841,7 @@ void Peer::recvValidation(const boost::shared_ptr<ripple::TMValidation>& packet)
 		SerializedValidation::pointer val = boost::make_shared<SerializedValidation>(boost::ref(sit), false);
 
 		uint256 signingHash = val->getSigningHash();
-		if (!theApp->isNew(signingHash))
+		if (!theApp->isNew(signingHash, mPeerId))
 		{
 			cLog(lsTRACE) << "Validation is duplicate";
 			return;
@@ -831,7 +850,7 @@ void Peer::recvValidation(const boost::shared_ptr<ripple::TMValidation>& packet)
 		bool isTrusted = theApp->getUNL().nodeInUNL(val->getSignerPublic());
 		theApp->getJobQueue().addJob(isTrusted ? jtVALIDATION_t : jtVALIDATION_ut,
 			boost::bind(&checkValidation, _1, val, signingHash, isTrusted, packet,
-				boost::weak_ptr<Peer>(shared_from_this())));
+			boost::weak_ptr<Peer>(shared_from_this())));
 	}
 #ifndef TRUST_NETWORK
 	catch (...)
diff --git a/src/Peer.h b/src/Peer.h
index 49857e3e6..256319c83 100644
--- a/src/Peer.h
+++ b/src/Peer.h
@@ -5,6 +5,7 @@
 #include <boost/asio.hpp>
 #include <boost/asio/ssl.hpp>
 #include <boost/enable_shared_from_this.hpp>
+#include <boost/make_shared.hpp>
 #include <boost/shared_ptr.hpp>
 
 #include "../obj/src/ripple.pb.h"
@@ -72,7 +73,7 @@ protected:
 	ripple::TMStatusChange mLastStatus;
 	ripple::TMHello mHello;
 
-	Peer(boost::asio::io_service& io_service, boost::asio::ssl::context& ctx);
+	Peer(boost::asio::io_service& io_service, boost::asio::ssl::context& ctx, uint64 peerId);
 
 	void handleShutdown(const boost::system::error_code& error) { ; }
 	static void sHandleShutdown(Peer::ref ptr, const boost::system::error_code& error)
@@ -132,9 +133,9 @@ public:
 
 	void setIpPort(const std::string& strIP, int iPort);
 
-	static pointer create(boost::asio::io_service& io_service, boost::asio::ssl::context& ctx)
+	static pointer create(boost::asio::io_service& io_service, boost::asio::ssl::context& ctx, uint64 id)
 	{
-		return pointer(new Peer(io_service, ctx));
+		return pointer(new Peer(io_service, ctx, id));
 	}
 
 	boost::asio::ssl::stream<boost::asio::ip::tcp::socket>::lowest_layer_type& getSocket()
diff --git a/src/PeerDoor.cpp b/src/PeerDoor.cpp
index 354481672..a3740846b 100644
--- a/src/PeerDoor.cpp
+++ b/src/PeerDoor.cpp
@@ -39,7 +39,8 @@ PeerDoor::PeerDoor(boost::asio::io_service& io_service) :
 
 void PeerDoor::startListening()
 {
-	Peer::pointer new_connection = Peer::create(mAcceptor.get_io_service(), mCtx);
+	Peer::pointer new_connection = Peer::create(mAcceptor.get_io_service(), mCtx,
+		theApp->getConnectionPool().assignPeerId());
 
 	mAcceptor.async_accept(new_connection->getSocket(),
 		boost::bind(&PeerDoor::handleConnect, this, new_connection,
diff --git a/src/RPCHandler.cpp b/src/RPCHandler.cpp
index 36fcfdffd..b4a22162b 100644
--- a/src/RPCHandler.cpp
+++ b/src/RPCHandler.cpp
@@ -411,7 +411,7 @@ Json::Value RPCHandler::doAccountEmailSet(const Json::Value &params)
 	boost::to_lower(strEmail);
 
 	std::vector<unsigned char>	vucMD5(128/8, 0);
-	MD5(reinterpret_cast<const unsigned char*>(strEmail.c_str()), strEmail.size(), &vucMD5.front());
+	MD5(reinterpret_cast<const unsigned char*>(strEmail.data()), strEmail.size(), &vucMD5.front());
 
 	uint128						uEmailHash(vucMD5);
 	std::vector<unsigned char>	vucDomain;
@@ -2607,7 +2607,7 @@ Json::Value RPCHandler::doLogin(const Json::Value& params)
 
 Json::Value RPCHandler::doGetCounts(const Json::Value& params)
 {
-	int minCount = 1;
+	int minCount = 10;
 	if (params.size() > 0)
 		minCount = params[0u].asInt();
 
diff --git a/src/Serializer.cpp b/src/Serializer.cpp
index 8b67d3b65..016c6e2a6 100644
--- a/src/Serializer.cpp
+++ b/src/Serializer.cpp
@@ -305,7 +305,7 @@ uint256 Serializer::getSHA512Half(const unsigned char *data, int len)
 
 uint256 Serializer::getSHA512Half(const std::string& strData)
 {
-	return getSHA512Half(reinterpret_cast<const unsigned char*>(strData.c_str()), strData.size());
+	return getSHA512Half(reinterpret_cast<const unsigned char*>(strData.data()), strData.size());
 }
 
 uint256 Serializer::getPrefixHash(uint32 prefix, const unsigned char *data, int len)
@@ -367,7 +367,16 @@ int Serializer::addVL(const std::vector<unsigned char>& vector)
 int Serializer::addVL(const void *ptr, int len)
 {
 	int ret = addRaw(encodeVL(len));
-	if (len) addRaw(ptr, len);
+	if (len)
+		addRaw(ptr, len);
+	return ret;
+}
+
+int Serializer::addVL(const std::string& string)
+{
+	int ret = addRaw(string.size());
+	if (!string.empty())
+		addRaw(string.data(), string.size());
 	return ret;
 }
 
diff --git a/src/Serializer.h b/src/Serializer.h
index fc1f1df49..7b7b67fe2 100644
--- a/src/Serializer.h
+++ b/src/Serializer.h
@@ -44,6 +44,7 @@ public:
 	int addZeros(size_t uBytes);
 
 	int addVL(const std::vector<unsigned char> &vector);
+	int addVL(const std::string& string);
 	int addVL(const void *ptr, int len);
 	int addTaggedList(const std::list<TaggedListItem>&);
 	int addTaggedList(const std::vector<TaggedListItem>&);
@@ -87,7 +88,7 @@ public:
 	static uint256 getPrefixHash(uint32 prefix, const std::vector<unsigned char>& data)
 		{ return getPrefixHash(prefix, &(data.front()), data.size()); }
 	static uint256 getPrefixHash(uint32 prefix, const std::string& strData)
-		{ return getPrefixHash(prefix, reinterpret_cast<const unsigned char *>(strData.c_str()), strData.size()); }
+		{ return getPrefixHash(prefix, reinterpret_cast<const unsigned char *>(strData.data()), strData.size()); }
 
 	// totality functions
 	const std::vector<unsigned char>& peekData() const		{ return mData; }
diff --git a/src/Suppression.cpp b/src/Suppression.cpp
index 2576a2aed..ad96d4b15 100644
--- a/src/Suppression.cpp
+++ b/src/Suppression.cpp
@@ -66,3 +66,35 @@ bool SuppressionTable::addSuppressionFlags(const uint256& index, int flag)
 	findCreateEntry(index, created).setFlag(flag);
 	return created;
 }
+
+bool SuppressionTable::setFlag(const uint256& index, int flag)
+{ // return: true = changed, false = unchanged
+	assert(flag != 0);
+
+	boost::mutex::scoped_lock sl(mSuppressionMutex);
+
+	bool created;
+	Suppression &s = findCreateEntry(index, created);
+
+	if ((s.getFlags() & flag) == flag)
+		return false;
+
+	s.setFlag(flag);
+	return true;
+}
+
+bool SuppressionTable::swapSet(const uint256& index, std::set<uint64>& peers, int flag)
+{
+	boost::mutex::scoped_lock sl(mSuppressionMutex);
+
+	bool created;
+	Suppression &s = findCreateEntry(index, created);
+
+	if ((s.getFlags() & flag) == flag)
+		return false;
+
+	s.swapSet(peers);
+	s.setFlag(flag);
+
+	return true;
+}
\ No newline at end of file
diff --git a/src/Suppression.h b/src/Suppression.h
index 18abb3a98..14b611ede 100644
--- a/src/Suppression.h
+++ b/src/Suppression.h
@@ -14,6 +14,11 @@
 
 DEFINE_INSTANCE(Suppression);
 
+#define SF_RELAYED		0x01
+#define SF_SIGBAD		0x02
+#define SF_SIGGOOD		0x04
+#define SF_SAVED		0x08
+
 class Suppression : private IS_INSTANCE(Suppression)
 {
 protected:
@@ -27,9 +32,11 @@ public:
 	void addPeer(uint64 peer)					{ mPeers.insert(peer); }
 	bool hasPeer(uint64 peer)					{ return mPeers.count(peer) > 0; }
 
+	int getFlags(void)							{ return mFlags; }
 	bool hasFlag(int f)							{ return (mFlags & f) != 0; }
 	void setFlag(int f)							{ mFlags |= f; }
 	void clearFlag(int f)						{ mFlags &= ~f; }
+	void swapSet(std::set<uint64>& s)			{ mPeers.swap(s); }
 };
 
 class SuppressionTable
@@ -55,8 +62,11 @@ public:
 
 	bool addSuppressionPeer(const uint256& index, uint64 peer);
 	bool addSuppressionFlags(const uint256& index, int flag);
+	bool setFlag(const uint256& index, int flag);
 
 	Suppression getEntry(const uint256&);
+
+	bool swapSet(const uint256& index, std::set<uint64>& peers, int flag);
 };
 
 #endif
diff --git a/src/TaggedCache.h b/src/TaggedCache.h
index fe7e03d24..f7a0781a1 100644
--- a/src/TaggedCache.h
+++ b/src/TaggedCache.h
@@ -1,12 +1,17 @@
 #ifndef __TAGGEDCACHE__
 #define __TAGGEDCACHE__
 
+#include <string>
+
 #include <boost/thread/recursive_mutex.hpp>
 #include <boost/unordered_map.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/ref.hpp>
 #include <boost/make_shared.hpp>
 
+#include "Log.h"
+extern LogPartition TaggedCachePartition;
+
 // This class implemented a cache and a map. The cache keeps objects alive
 // in the map. The map allows multiple code paths that reference objects
 // with the same tag to get the same actual object.
@@ -30,6 +35,7 @@ public:
 protected:
 	mutable boost::recursive_mutex mLock;
 
+	std::string mName;
 	int mTargetSize, mTargetAge;
 
 	boost::unordered_map<key_type, cache_entry> mCache;	// Hold strong reference to recent objects
@@ -38,7 +44,8 @@ protected:
 	boost::unordered_map<key_type, weak_data_ptr> mMap;	// Track stored objects
 
 public:
-	TaggedCache(int size, int age) : mTargetSize(size), mTargetAge(age), mLastSweep(time(NULL)) { ; }
+	TaggedCache(const char *name, int size, int age)
+		: mName(name), mTargetSize(size), mTargetAge(age), mLastSweep(time(NULL)) { ; }
 
 	int getTargetSize() const;
 	int getTargetAge() const;
@@ -89,35 +96,40 @@ template<typename c_Key, typename c_Data> void TaggedCache<c_Key, c_Data>::sweep
 {
 	boost::recursive_mutex::scoped_lock sl(mLock);
 
-	if (mCache.size() < mTargetSize)
-		return;
-
-	time_t now = time(NULL);
-	if ((mLastSweep + 10) < now)
-		return;
-	
-	mLastSweep = now;
-	time_t target = now - mTargetAge;
+	mLastSweep = time(NULL);
+	time_t target = mLastSweep - mTargetAge;
 
 	// Pass 1, remove old objects from cache
+	int cacheRemovals = 0;
 	typename boost::unordered_map<key_type, cache_entry>::iterator cit = mCache.begin();
 	while (cit != mCache.end())
 	{
 		if (cit->second.first < target)
+		{
+			++cacheRemovals;
 			mCache.erase(cit++);
+		}
 		else
 			++cit;
 	}
 
 	// Pass 2, remove dead objects from map
+	int mapRemovals = 0;
 	typename boost::unordered_map<key_type, weak_data_ptr>::iterator mit = mMap.begin();
 	while (mit != mMap.end())
 	{
 		if (mit->second.expired())
+		{
+			++mapRemovals;
 			mMap.erase(mit++);
+		}
 		else
 			++mit;
 	}
+
+	if (TaggedCachePartition.doLog(lsTRACE) && (mapRemovals || cacheRemovals))
+		Log(lsTRACE, TaggedCachePartition) << mName << ": cache = " << mCache.size() << "-" << cacheRemovals <<
+			", map = " << mMap.size() << "-" << mapRemovals;
 }
 
 template<typename c_Key, typename c_Data> bool TaggedCache<c_Key, c_Data>::touch(const key_type& key)
diff --git a/src/TransactionEngine.cpp b/src/TransactionEngine.cpp
index 04f4ecf09..0b29d4e85 100644
--- a/src/TransactionEngine.cpp
+++ b/src/TransactionEngine.cpp
@@ -15,6 +15,7 @@
 #include "utils.h"
 
 SETUP_LOG();
+DECLARE_INSTANCE(TransactionEngine);
 
 void TransactionEngine::txnWrite()
 {
diff --git a/src/TransactionEngine.h b/src/TransactionEngine.h
index 70d464b7a..e16755d30 100644
--- a/src/TransactionEngine.h
+++ b/src/TransactionEngine.h
@@ -9,6 +9,9 @@
 #include "SerializedLedger.h"
 #include "LedgerEntrySet.h"
 #include "TransactionErr.h"
+#include "InstanceCounter.h"
+
+DEFINE_INSTANCE(TransactionEngine);
 
 // A TransactionEngine applies serialized transactions to a ledger
 // It can also, verify signatures, verify fees, and give rejection reasons
@@ -29,7 +32,7 @@ enum TransactionEngineParams
 
 // One instance per ledger.
 // Only one transaction applied at a time.
-class TransactionEngine
+class TransactionEngine : private IS_INSTANCE(TransactionEngine)
 {
 private:
 	LedgerEntrySet						mNodes;
diff --git a/src/TransactionMaster.cpp b/src/TransactionMaster.cpp
index eabf17622..e260ccde2 100644
--- a/src/TransactionMaster.cpp
+++ b/src/TransactionMaster.cpp
@@ -13,7 +13,7 @@
 #define CACHED_TRANSACTION_AGE 1800
 #endif
 
-TransactionMaster::TransactionMaster() : mCache(CACHED_TRANSACTION_NUM, CACHED_TRANSACTION_AGE)
+TransactionMaster::TransactionMaster() : mCache("TransactionCache", CACHED_TRANSACTION_NUM, CACHED_TRANSACTION_AGE)
 {
 	;
 }
diff --git a/src/rpc.cpp b/src/rpc.cpp
index 15f53061c..2beec4c66 100644
--- a/src/rpc.cpp
+++ b/src/rpc.cpp
@@ -189,7 +189,7 @@ std::string DecodeBase64(std::string s)
 
 	b64 = BIO_new(BIO_f_base64());
 	BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
-	bmem = BIO_new_mem_buf(const_cast<char*>(s.c_str()), s.size());
+	bmem = BIO_new_mem_buf(const_cast<char*>(s.data()), s.size());
 	bmem = BIO_push(b64, bmem);
 	BIO_read(bmem, buffer, s.size());
 	BIO_free_all(bmem);