diff --git a/src/org/kne/cloud/network/klalb/Consts.java b/src/org/kne/cloud/network/klalb/Consts.java
index 066a209..c941e0f 100644
--- a/src/org/kne/cloud/network/klalb/Consts.java
+++ b/src/org/kne/cloud/network/klalb/Consts.java
@@ -1,13 +1,14 @@
 package org.kne.cloud.network.klalb;
 
 public class Consts {
-	public static final int BLOCKSIZE=16384;
+	//public static final int BLOCKSIZE=8192;
 	public static final long PINGTIMENS=1000000000L;
-	public static final int SO_TIMEOUT = 5000;
+	public static final int SO_TIMEOUT = 2000;
 	public static final long SN_KEEP = 60000000000L;
-	public static final int MAX_RESEND = 10;
-	public static final long UACK_TIME = 5000000000L;
+	public static final int MAX_RESEND = 20;
+	public static final long UACK_TIME = 2000000000L;
 	public static final int CONNECT_TIMEOUT=10000;
 	public static final double MAX_QUEUE_TIME=500;
 	public static final long KEEP_TIME = 60000000000L;
+	public static final int PRE_SO_TIMEOUT = 10000;
 }
diff --git a/src/org/kne/cloud/network/klalb/KLALBBlock.java b/src/org/kne/cloud/network/klalb/KLALBBlock.java
index 5cc04ad..7ddcdc0 100644
--- a/src/org/kne/cloud/network/klalb/KLALBBlock.java
+++ b/src/org/kne/cloud/network/klalb/KLALBBlock.java
@@ -8,15 +8,15 @@ import java.util.concurrent.atomic.AtomicLong;
 import org.kne.cloud.network.mport.IPPort;
 
 public class KLALBBlock implements Comparable<KLALBBlock>{
-	private static AtomicLong sng=new AtomicLong(1);
+	//private static AtomicLong sng=new AtomicLong(1);
 	
-	public volatile long sn;//每个数据包的唯一编号
+	//public volatile long sn;//每个数据包的唯一编号
 	public volatile int cuid;//用于识别数据包的stream ID号
 	public volatile long number;//数据包的编号，用于排序
 	public volatile byte[]data;//数据内容
-	public volatile int command;//功能标记 0=PING 1=PONG 2=SYN 3=RST 4=KEEP
+	public volatile int command;//功能标记 0=PING 1=PONG 2=SYN 3=RST 4=KEEP 5=SYK
 	public volatile long pingtime;//PING计时器
-	public volatile int cacheused;
+	public volatile boolean cacheused;
 	
 	public volatile String lservice;
 	public volatile IPPort lipport;
@@ -24,12 +24,12 @@ public class KLALBBlock implements Comparable<KLALBBlock>{
 	public transient volatile long sendtime;
 	public transient volatile int resend;
 
-	public volatile long sendtimeForRTT;
+	//public volatile long sendtimeForRTT;
 	
 	
-	public KLALBBlock() {
+	/*public KLALBBlock() {
 		sn=sng.getAndIncrement();
-	}
+	}*/
 
 
 
@@ -60,6 +60,9 @@ public class KLALBBlock implements Comparable<KLALBBlock>{
 			case 3:
 				sb.append("RST");
 				break;
+			case 5:
+				sb.append("SYK");
+				break;
 			}
 		}
 		return sb.toString();
diff --git a/src/org/kne/cloud/network/klalb/KLALBClient.java b/src/org/kne/cloud/network/klalb/KLALBClient.java
index 9fff01f..a767cb5 100644
--- a/src/org/kne/cloud/network/klalb/KLALBClient.java
+++ b/src/org/kne/cloud/network/klalb/KLALBClient.java
@@ -36,7 +36,7 @@ import com.google.gson.stream.JsonReader;
 public class KLALBClient {
 
 	private UUID suid=UUID.randomUUID();
-	private IOThreadManager iom=new IOThreadManager();
+	private KLALBController iom=new KLALBController();
 		private	List<Tunnel> tls=new ArrayList<>();
 		private List<TCPListener> tcpl=new ArrayList<>();
 		private List<ProxyElement> pet=new ArrayList<>();
@@ -114,7 +114,7 @@ public class KLALBClient {
 					}
 					try {
 						//System.out.println(re);
-						Thread.sleep(1000*(1<<Math.min(re,7)));
+						Thread.sleep(5000*(1<<Math.min(re,3)));
 					} catch (InterruptedException e) {
 						e.printStackTrace();
 					}
diff --git a/src/org/kne/cloud/network/klalb/IOThreadManager.java b/src/org/kne/cloud/network/klalb/KLALBController.java
similarity index 72%
rename from src/org/kne/cloud/network/klalb/IOThreadManager.java
rename to src/org/kne/cloud/network/klalb/KLALBController.java
index 7ed8584..6ab2f4b 100644
--- a/src/org/kne/cloud/network/klalb/IOThreadManager.java
+++ b/src/org/kne/cloud/network/klalb/KLALBController.java
@@ -3,6 +3,7 @@ package org.kne.cloud.network.klalb;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.net.ConnectException;
 import java.net.SocketException;
 import java.util.Collection;
 import java.util.HashMap;
@@ -22,11 +23,11 @@ import java.util.concurrent.atomic.AtomicReference;
 import org.kne.cloud.network.mport.ServiceElement;
 import org.kne.cloud.network.mport.ThreadTool;
 
-public class IOThreadManager {
-	private KLALBCore klc = new KLALBCore(1000);
+public class KLALBController {
+	private KLALBCore klc = new KLALBCore();
 	private volatile boolean isopen = true;
 
-	public IOThreadManager() {
+	public KLALBController() {
 
 	}
 
@@ -34,8 +35,8 @@ public class IOThreadManager {
 		if(!isopen) {
 			return;
 		}
-		klc.getLocaltcps().put(tc.getCuid(), tc);
-
+		//klc.getLocaltcps().put(tc.getCuid(), tc);
+		klc.openLocal(tc);
 	//	checkRemotes();
 		
 		AtomicBoolean AB=new AtomicBoolean(true);
@@ -54,18 +55,15 @@ public class IOThreadManager {
 					}
 				} catch (InterruptedException e) {
 					e.printStackTrace();
-					AB.set(false);
-					//tn.get().interrupt();
-					//ltn.get().interrupt();
-					tc.getOutputcache().clear();
-					tc.close();
-					KLALBBlock sbk = new KLALBBlock();
-					sbk.cuid = tc.getCuid();
-					sbk.number = 0;
-					sbk.command = 3;
-					klc.submitDataBlockNoDelay(sbk);
+					
 				} catch (IOException e) {
 					e.printStackTrace();
+					AB.set(false);
+					/*tn.get().interrupt();
+					ltn.get().interrupt();
+					tc.getOutputcache().clear();*/
+					tc.close();
+					klc.closeLocal(tc);
 				}
 			});
 			
@@ -84,14 +82,10 @@ public class IOThreadManager {
 				} catch (IOException|InterruptedException e) {
 					e.printStackTrace();
 					AB.set(false);
-					lt.interrupt();
-					tc.getOutputcache().clear();
+					/*lt.interrupt();
+					tc.getOutputcache().clear();*/
 					tc.close();
-					KLALBBlock sbk = new KLALBBlock();
-					sbk.cuid = tc.getCuid();
-					sbk.number = 0;
-					sbk.command = 3;
-					klc.submitDataBlockNoDelay(sbk);
+					klc.closeLocal(tc);
 				}finally {
 					try {
 						tc.getDout().close();
@@ -100,7 +94,7 @@ public class IOThreadManager {
 					}
 				}
 			});
-			//tn.set(ls);
+		//	tn.set(ls);
 			Thread lr = ThreadTool.makeVThreadIfSupport("本地接收线程", () -> {
 				try {
 					while (true) {
@@ -114,15 +108,11 @@ public class IOThreadManager {
 				} catch (IOException|InterruptedException e) {
 					e.printStackTrace();
 					AB.set(false);
-					ls.interrupt();
+					/*ls.interrupt();
 					lt.interrupt();
-					tc.getOutputcache().clear();
+					tc.getOutputcache().clear();*/
 					tc.close();
-					KLALBBlock sbk = new KLALBBlock();
-					sbk.cuid = tc.getCuid();
-					sbk.number = 0;
-					sbk.command = 3;
-					klc.submitDataBlockNoDelay(sbk);
+					klc.closeLocal(tc);
 				} finally {
 					try {
 						tc.getDin().close();
@@ -136,19 +126,14 @@ public class IOThreadManager {
 				//System.out.println("xxxxxxxxxxxxxxxxxxxxxxxxxx");
 				//System.exit(123);
 				AB.set(false);
-				ls.interrupt();
+				/*ls.interrupt();
 				lt.interrupt();
-				tc.getOutputcache().clear();
+				tc.getOutputcache().clear();*/
 				tc.close();
+				klc.closeLocal(tc);
 			});
 			if (syn) { 
-				KLALBBlock sbk = new KLALBBlock();
-				sbk.cuid = tc.getCuid();
-				sbk.number = 0;
-				sbk.command = 2;
-				sbk.lservice = tc.getServiceElement().name;
-				sbk.lipport = tc.getServiceElement().ipport;
-				klc.submitAckBlockNoDelay(sbk,1);
+				klc.connectLocal(tc);
 			}
 			ls.start();
 			lr.start();
@@ -161,8 +146,12 @@ public class IOThreadManager {
 			
 		} catch (InterruptedException e) {
 			e.printStackTrace();
+		} catch (IOException e) {
+			// TODO 自动生成的 catch 块
+			e.printStackTrace();
 		} finally {
-			klc.getLocaltcps().remove(tc.getCuid());
+			klc.closeLocal(tc);
+			//klc.getLocaltcps().remove(tc.getCuid());
 		}
 	}
 
@@ -170,7 +159,7 @@ public class IOThreadManager {
 		if(!isopen) {
 			return;
 		}
-		klc.getRemotetcps().add(tc);
+		klc.openRemote(tc);
 		try {
 			Thread rs = ThreadTool.makeVThreadIfSupport("远程发送线程", () -> {
 
@@ -200,19 +189,8 @@ public class IOThreadManager {
 		} catch (InterruptedException e) {
 			e.printStackTrace();
 		} finally {
-			klc.getRemotetcps().remove(tc);
-			Queue<KLALBBlock> sq=tc.getSendDeque();
-			KLALBBlock tmp;
-			while((tmp=sq.poll())!=null) {
-			try {
-				klc.submitDataBlock(tmp);
-			} catch (InterruptedException e) {
-				e.printStackTrace();
-			} catch (IOException e) {
-				// TODO 自动生成的 catch 块
-				e.printStackTrace();
-			}
-			}
+			klc.closeRemote(tc);
+			
 			
 		//	checkRemotes();
 		}
@@ -260,4 +238,5 @@ public class IOThreadManager {
 		return klc;
 	}
 
+
 }
diff --git a/src/org/kne/cloud/network/klalb/KLALBCore.java b/src/org/kne/cloud/network/klalb/KLALBCore.java
index 83da240..f135e41 100644
--- a/src/org/kne/cloud/network/klalb/KLALBCore.java
+++ b/src/org/kne/cloud/network/klalb/KLALBCore.java
@@ -6,6 +6,8 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.StreamCorruptedException;
+import java.lang.invoke.ConstantCallSite;
+import java.net.ConnectException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@@ -33,21 +35,25 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
 import java.util.function.Predicate;
 import java.util.zip.DataFormatException;
 
 import org.kne.cloud.network.mport.ThreadTool;
 
 public class KLALBCore {
-	private volatile  long RTT=1000000000;
+	/*private volatile  long RTT=1000000000;
 	private volatile  long RTO=1000000000;
 	private volatile long DevRTT=0;
-	
-	private volatile int cacheblocks;
+	*/
+	//private volatile int cacheblocks;
 	
 	private Map<Integer, LocalTCPConnection> localtcps = new ConcurrentHashMap<>();
+	private Set<Integer>localtcpsconnecting=Collections.synchronizedSet(new HashSet<>());
+	
 	private List<RemoteTCPConnection> remotetcps = new Vector<>();
-	private Predicate<KLALBBlock>acceptSYN;
+	private BiConsumer<KLALBBlock,Consumer<Boolean>>acceptSYN;
 	
 
 	/*private volatile long rsntime=System.nanoTime();
@@ -81,11 +87,11 @@ public class KLALBCore {
 		
 	}*/
 	
-	public Predicate<KLALBBlock> getAcceptSYN() {
+	public BiConsumer<KLALBBlock, Consumer<Boolean>> getAcceptSYN() {
 		return acceptSYN;
 	}
 
-	public void setAcceptSYN(Predicate<KLALBBlock> acceptSYN) {
+	public void setAcceptSYN(BiConsumer<KLALBBlock, Consumer<Boolean>> acceptSYN) {
 		this.acceptSYN = acceptSYN;
 	}
 
@@ -97,9 +103,6 @@ public class KLALBCore {
 		return remotetcps;
 	}
 
-	public KLALBCore(int cachesize) {
-		cacheblocks=cachesize;
-	}
 	
 	public void remoteSend(RemoteTCPConnection tc) throws InterruptedException, IOException {
 		for(;;) {
@@ -112,13 +115,12 @@ public class KLALBCore {
 				tc.sendBlock(pdb);
 				tc.updateTraffics();
 			}
-			if(!tc.getNDSendDeque().isEmpty()||!tc.getSendDeque().isEmpty())
+			if(!tc.isEmpty())
 				break;
-			synchronized (tc.getSendDeque()) {
-				tc.getSendDeque().wait(10);
-			}
+			tc.lock(10);
 		}
-		KLALBBlock k0=tc.getNDSendDeque().poll();
+		KLALBBlock kbv=tc.getNextBlock();
+		/*KLALBBlock k0=tc.getNDSendDeque().poll();
 		if(k0!=null) {
 			if(k0.cuid==0&&k0.number==0&&k0.command==1) {
 				k0.pingtime+=System.nanoTime()- k0.sendtime;
@@ -132,6 +134,12 @@ public class KLALBCore {
 			tc.sendBlock(k);
 		}
 			
+		}*/
+		if(kbv!=null) {
+			if(kbv.cuid==0&&kbv.number==0&&kbv.command==1) {
+				kbv.pingtime+=System.nanoTime()- kbv.sendtime;
+			}
+			tc.sendBlock(kbv);
 		}
 	}
 	public void remoteReceive(RemoteTCPConnection tc) throws IOException {
@@ -181,11 +189,13 @@ public class KLALBCore {
 					pdb.command=1;
 					pdb.pingtime=brc.pingtime;
 					pdb.sendtime=brc.sendtime;
-					tc.getNDSendDeque().offer(pdb);
+					tc.addBlock(pdb, 0);
+					//tc.getNDSendDeque().offer(pdb);
 				}else if(brc.command==1) {
 					long cur=System.nanoTime();
 					long delay=cur-brc.pingtime;
 					setDelayAvg(tc,delay);
+					tc.setSoTimeout(Consts.SO_TIMEOUT);
 				}
 			}
 		}else {
@@ -193,23 +203,53 @@ public class KLALBCore {
 				if(brc.command==0) {
 				}else if(brc.command==1) {
 				}else if(brc.command==2) {
-					if(!localtcps.containsKey(brc.cuid)) {
-				
-					if(acceptSYN==null||!acceptSYN.test(brc)) {
+					if(!localtcps.containsKey(brc.cuid)&&!localtcpsconnecting.contains(brc.cuid)) {
+						localtcpsconnecting.add(brc.cuid);
+						KLALBBlock brcx=brc;
+						ThreadTool.makeVThreadIfSupport("局域网连接监视线程", ()->{
+							try {
+					if(acceptSYN==null) {
 						KLALBBlock rst=new KLALBBlock();
-						rst.cuid=brc.cuid;
+						rst.cuid=brcx.cuid;
 						rst.number=0;
 						rst.command=3;
 						submitDataBlockNoDelay(rst);
+					}else {acceptSYN.accept(brcx,(Consumer<Boolean>)(c)->{
+						if(c) {
+							KLALBBlock syk=new KLALBBlock();
+							syk.cuid=brcx.cuid;
+							syk.number=0;
+							syk.command=5;
+							submitDataBlockNoDelay(syk);
+						}else {
+							KLALBBlock rst=new KLALBBlock();
+							rst.cuid=brcx.cuid;
+							rst.number=0;
+							rst.command=3;
+							submitDataBlockNoDelay(rst);
+						}
+					});
+						
 					}
+							}finally {
+								localtcpsconnecting.remove(brcx.cuid);
+							}
+						}).start();
 					}
 				}else if(brc.command==3) {
 					LocalTCPConnection ltc=localtcps.get(brc.cuid);
 					
 					if(ltc!=null) {
 						//ltc.close();
+						ltc.setIsrst(true);
 						ltc.getRSTHook().accept(ltc);
 					}
+				}else if(brc.command==5) {
+					LocalTCPConnection ltc=localtcps.get(brc.cuid);
+					
+					if(ltc!=null) {
+						ltc.setIssyk(true);
+					}
 				}
 			}else if(brc.number>0){
 				LocalTCPConnection ltcs=localtcps.get(brc.cuid);
@@ -217,9 +257,41 @@ public class KLALBCore {
 				KLALBBlock ack=new KLALBBlock();
 				ack.cuid=brc.cuid;
 				ack.number=-brc.number;
-				ack.cacheused=ltcs.getSendDeque().size();
+				ack.cacheused=ltcs.getSendDeque().size()>ltcs.getInputcachesize()/ltcs.getBlocksize();
 				submitAckBlockNoDelay(ack,3);
-				ltcs.getSendDeque().add(brc);
+			
+				List<KLALBBlock> ic=ltcs.getInputcache();
+				synchronized(ic) {
+				if(brc.number>=ltcs.getInputcount()) {
+				ic.add(brc);
+				while(true) {
+					KLALBBlock kkb=null;
+				for (int i = 0; i < ic.size(); i++) {
+					KLALBBlock klalbBlock = ic.get(i);
+					if(klalbBlock.number==ltcs.getInputcount()) {
+						ic.remove(i);
+						i--;
+						kkb=klalbBlock;
+						break;
+					}
+				}
+				if(kkb==null)
+					break;
+				ltcs.getSendDeque().add(kkb);
+				ltcs.incInputcount();
+				}
+				/*for (Iterator<KLALBBlock> iterator = ltcs.getInputcache().iterator(); iterator.hasNext();) {
+					KLALBBlock klalbBlock = (KLALBBlock) iterator.next();
+					if(klalbBlock.number==ltcs.getInputcount()) {
+						iterator.remove();
+						ltcs.getSendDeque().add(klalbBlock);
+						ltcs.incInputcount();
+					}else {
+						break;
+					}
+				}*/
+				}
+				}
 				}
 					
 				
@@ -227,7 +299,7 @@ public class KLALBCore {
 				long nx=-brc.number;
 				LocalTCPConnection ltc=localtcps.get(brc.cuid);
 				if(ltc!=null) {
-					List<KLALBBlock> l=ltc.getOutputcache();
+					/*List<KLALBBlock> l=ltc.getOutputcache();
 					synchronized (l) {
 						for (Iterator<KLALBBlock> iterator = l.iterator(); iterator.hasNext();) {
 							KLALBBlock klalbBlock = (KLALBBlock) iterator.next();
@@ -240,13 +312,13 @@ public class KLALBCore {
 								//System.out.println(RTO/1000000);
 							}
 						}
-					}
+					}*/
 
 					
-				/*ltc.getOutputcache().removeIf((b) -> {
+				ltc.getOutputcache().removeIf((b) -> {
 					return b.number == nx;
-				});*/
-				ltc.setPeerCacheUsed(brc.cacheused);
+				});
+				ltc.setPeerFull(brc.cacheused);
 				}else {
 					KLALBBlock sbk = new KLALBBlock();
 					sbk.cuid = brc.cuid;
@@ -258,19 +330,18 @@ public class KLALBCore {
 				synchronized (remotetcps) {
 					for (Iterator<RemoteTCPConnection> iterator = remotetcps.iterator(); iterator.hasNext();) {
 						RemoteTCPConnection remoteTCPConnection = (RemoteTCPConnection) iterator.next();
-						Queue<KLALBBlock>sq=remoteTCPConnection.getSendDeque();
-						sq.removeIf((vb)->{
-							return vb.number==nx&&vb.cuid==cuid;
-						});
+						remoteTCPConnection.ackRemove(nx,cuid);
+						/*Queue<KLALBBlock>sq=remoteTCPConnection.getSendDeque();
+						*/
 					}
 				}
 			}
 		}
 
 	}
-	private void sortRemoteTCPByPrediction() {
+	private void sortRemoteTCPByPrediction(int prio) {
 			remotetcps.forEach((x)->{
-				x.predictLatency();
+				x.predictLatency(prio);
 			});
 			Collections.sort(remotetcps, new Comparator<RemoteTCPConnection>() {
 				@Override
@@ -324,20 +395,19 @@ public class KLALBCore {
 		submitDataBlock(ks,1);
 	}
 	public void submitDataBlock(KLALBBlock kb,int i) throws InterruptedException, IOException {
+		submitDataBlock(kb,1,5);
+	}
+	public void submitDataBlock(KLALBBlock kb,int i,int prio) throws InterruptedException, IOException {
 		int ni=Math.min(i, remotetcps.size());
 			while(true) {
 				if(remotetcps.isEmpty())
 					throw new IOException("发送错误");
 				synchronized (remotetcps) {
-					sortRemoteTCPByPrediction();
+					sortRemoteTCPByPrediction(5);
 					for (Iterator<RemoteTCPConnection> iterator = remotetcps.iterator(); iterator.hasNext();) {
-						RemoteTCPConnection remoteTCPConnection = (RemoteTCPConnection) iterator.next();
+						RemoteTCPConnection rmt = (RemoteTCPConnection) iterator.next();
 						//if(remoteTCPConnection.getPredictedLatency()<Consts.MAX_QUEUE_TIME) {
-							Queue<KLALBBlock> bdq=remoteTCPConnection.getSendDeque();
-							bdq.add(kb);
-							synchronized (bdq) {
-							bdq.notifyAll();
-							}
+						rmt.addBlock(kb, prio);
 							ni--;
 							if(ni<=0)
 							return;
@@ -352,11 +422,7 @@ public class KLALBCore {
 		synchronized (remotetcps) {
 			for (Iterator<RemoteTCPConnection> iterator = remotetcps.iterator(); iterator.hasNext();) {
 				RemoteTCPConnection rmt = (RemoteTCPConnection) iterator.next();
-				Queue<KLALBBlock> sq = rmt.getNDSendDeque();
-				sq.offer(kb);
-				synchronized (sq) {
-				sq.notifyAll();
-				}
+				rmt.addBlock(kb, 0);
 			}
 		}
 	}
@@ -369,33 +435,39 @@ public class KLALBCore {
 					return;
 				}
 				RemoteTCPConnection rmt = (RemoteTCPConnection) iterator.next();
-				Queue<KLALBBlock> sq = rmt.getNDSendDeque();
-				sq.offer(kb);
-				synchronized (sq) {
-				sq.notifyAll();
-				}
+				rmt.addBlock(kb, 0);
 				coun++;
 			}
 		}
 	}
 	public void putDataBlock(LocalTCPConnection tc, KLALBBlock ks) throws InterruptedException, IOException {
-		while (true) {
+		/*while (true) {
+			if(!localtcps.containsKey(tc.getCuid()))
+				throw new IOException("本地连接已关闭");
 			if(remotetcps.isEmpty())
 				throw new IOException("发送错误");
 			boolean b;
 			synchronized (tc.getOutputcache()) {
-				b=!tc.getOutputcache().isEmpty()&&(tc.getOutputcount()-tc.getOutputcache().get(0).number>cacheblocks);
+				b=!tc.getOutputcache().isEmpty()&&(tc.getOutputcount()-tc.getOutputcache().get(0).number>tc.getOutputcachesize()/tc.getBlocksize());
 			}
 			if(!b) {
 				break;
 			}
 			Thread.sleep(1);
-		}
-		/*while(tc.getOutputcache().size()>cacheblocks) {
-			Thread.sleep(1);
 		}*/
+		if(!localtcps.containsKey(tc.getCuid()))
+			throw new IOException("本地连接已关闭");
+		if(remotetcps.isEmpty())
+			throw new IOException("发送错误");
+		while(tc.getOutputcache().size()>tc.getOutputcachesize()/tc.getBlocksize()) {
+			if(!localtcps.containsKey(tc.getCuid()))
+				throw new IOException("本地连接已关闭");
+			if(remotetcps.isEmpty())
+				throw new IOException("发送错误");
+			Thread.sleep(1);
+		}
 		ks.sendtime=System.nanoTime();
-		ks.sendtimeForRTT=ks.sendtime;
+	//	ks.sendtimeForRTT=ks.sendtime;
 		//System.out.println(tc.getOutputcache().size());
 		/*if(ks.data==null) {
 			submitDataBlock(ks);
@@ -408,7 +480,9 @@ public class KLALBCore {
 		}*/
 		submitDataBlock(ks);
 		tc.getOutputcache().add(ks);
-		while( tc.getPeerCacheUsed()>2*cacheblocks) {
+		while( tc.isPeerFull()) {
+			if(!localtcps.containsKey(tc.getCuid()))
+				throw new IOException("本地连接已关闭");
 			if(remotetcps.isEmpty())
 				throw new IOException("发送错误");
 			Thread.sleep(1);
@@ -435,7 +509,7 @@ public class KLALBCore {
 					}
 				}*/
 				if (timex > (1<<Math.min(4,block.resend))*(i<remotetcps.size()?Consts.MAX_QUEUE_TIME:1000*i)) {
-					submitDataBlock(block);
+					submitDataBlock(block,2,4);
 					block.sendtime = System.nanoTime();
 				System.out.println("超时重传："+block+" 位置："+i);
 					block.resend++;
@@ -448,12 +522,12 @@ public class KLALBCore {
 			}
 		}
 		long curr=System.nanoTime();
-		if(tc.getSendDeque().size()<cacheblocks&&curr-tc.uackt>Consts.UACK_TIME) {
+		if(curr-tc.uackt>Consts.UACK_TIME) {
 			tc.uackt=curr;
 			KLALBBlock ack=new KLALBBlock();
 			ack.cuid=tc.getCuid();
 			ack.number=Long.MIN_VALUE;
-			ack.cacheused=tc.getSendDeque().size();
+			ack.cacheused=tc.getSendDeque().size()>tc.getInputcachesize()/tc.getBlocksize();
 			submitAckBlockNoDelay(ack,3);
 		}
 		/*if(tc.getSendDeque().size()<cacheblocks&&curr-tc.ukeept>Consts.KEEP_TIME) {
@@ -470,8 +544,10 @@ public class KLALBCore {
 	public KLALBBlock getDataBlock(LocalTCPConnection tc) throws InterruptedException, IOException {
 		KLALBBlock recv=null;
 		while(true) {
+			if(!localtcps.containsKey(tc.getCuid()))
+				throw new IOException("本地连接已关闭");
 			if(remotetcps.isEmpty())
-				throw new IOException("发送错误");
+				throw new IOException("接收错误");
 			recv=tc.getSendDeque().poll();
 			if(recv!=null)
 				break;
@@ -482,9 +558,76 @@ public class KLALBCore {
 
 	public void waitOutput(LocalTCPConnection tc) throws InterruptedException, IOException {
 		while(tc.getOutputcache().size()>0) {
+			if(!localtcps.containsKey(tc.getCuid()))
+				throw new IOException("本地连接已关闭");
 			if(remotetcps.isEmpty())
 				throw new IOException("发送错误");
 			Thread.sleep(10);
 		}
 	}
+
+	public void closeLocal(LocalTCPConnection tc) {
+		tc.getOutputcache().clear();
+		KLALBBlock sbk = new KLALBBlock();
+		sbk.cuid = tc.getCuid();
+		sbk.number = 0;
+		sbk.command = 3;
+		submitDataBlockNoDelay(sbk);
+		localtcps.remove(tc.getCuid());
+	}
+
+	public void openLocal(LocalTCPConnection tc) {
+		localtcps.put(tc.getCuid(), tc);
+	}
+
+	public void connectLocal(LocalTCPConnection tc) throws InterruptedException, IOException {
+
+		KLALBBlock sbk = new KLALBBlock();
+		sbk.cuid = tc.getCuid();
+		sbk.number = 0;
+		sbk.command = 2;
+		sbk.lservice = tc.getServiceElement().name;
+		sbk.lipport = tc.getServiceElement().ipport;
+		submitDataBlockNoDelay(sbk);
+		
+		while(!tc.isIssyk()) {
+			if(!localtcps.containsKey(tc.getCuid()))
+				throw new IOException("本地连接已关闭");
+			if(tc.isIsrst()) {
+				throw new ConnectException("连接被拒绝");
+			}
+			if(remotetcps.isEmpty())
+				throw new IOException("接收错误");
+			Thread.sleep(2);
+		}
+	}
+
+	public void openRemote(RemoteTCPConnection tc) {
+	remotetcps.add(tc);
+	}
+
+	public void closeRemote(RemoteTCPConnection tc) {
+		remotetcps.remove(tc);
+		List<Queue<KLALBBlock>> l=tc.getSendDequeList();
+		synchronized (l) {
+			for (int i = 0; i < l.size(); i++) {
+				Queue<KLALBBlock> q=l.get(i);
+				int ix=i-1;
+				if(ix<0) {
+					ix=0;
+				}
+				int i2=ix;
+				q.forEach((kv)->{
+					try {
+						submitDataBlock(kv,1,i2);
+					} catch (InterruptedException e) {
+						e.printStackTrace();
+					} catch (IOException e) {
+						e.printStackTrace();
+					}
+				});
+			}
+		}
+	}
+	
 }
diff --git a/src/org/kne/cloud/network/klalb/KLALBServer.java b/src/org/kne/cloud/network/klalb/KLALBServer.java
index 5d46989..514d488 100644
--- a/src/org/kne/cloud/network/klalb/KLALBServer.java
+++ b/src/org/kne/cloud/network/klalb/KLALBServer.java
@@ -21,12 +21,14 @@ import org.kne.cloud.network.mport.ServiceElement;
 import org.kne.cloud.network.mport.ThreadTool;
 
 public class KLALBServer {
-	
-	Map<UUID, IOThreadManager> whm=Collections.synchronizedMap( new WeakHashMap<UUID, IOThreadManager>());
+	Map<UUID, KLALBController> whm=new ConcurrentHashMap<>();
+	//Map<UUID, IOThreadManager> whm=Collections.synchronizedMap( new WeakHashMap<UUID, IOThreadManager>());
 	public KLALBServer(int port,Supplier<String> gjso) throws IOException {
 		TCPListener tcpl=new TCPListener(port);
 		tcpl.setCon((s)->{
 			RemoteTCPConnection tcc=null;
+			 KLALBController nx=null;
+			 UUID uid=null;
 			try { 
 				//s.setSoTimeout(10000); 
 				tcc=new RemoteTCPConnection(null,s);
@@ -46,37 +48,50 @@ public class KLALBServer {
 				Tunnel tll=new Tunnel(name,new IPPort( ip, portx));
 				tcc.setTunnel(tll);
 				
-				UUID uid=new UUID(din.readLong(),din.readLong());
+				uid=new UUID(din.readLong(),din.readLong());
 
 				tcc.handshake(10);
 				
-				  IOThreadManager nx=whm.computeIfAbsent(uid, (kuid)->{
-					IOThreadManager iom=new IOThreadManager();
-					iom.getCore().setAcceptSYN((b)->{
+				 
+				  synchronized (whm) {
+	
+				  nx=whm.computeIfAbsent(uid, (kuid)->{
+					KLALBController iom=new KLALBController();
+					iom.getCore().setAcceptSYN((b,bol)->{
 						try {
 							STJson stj=new STJson(gjso.get());
 							if(!stj.checkSafety(b.lipport)) {
 								System.out.println("未授权的请求:"+b.lipport);
-								return false;
+								bol.accept(false);
+								return;
 							}
-							Socket soc=new Socket(b.lipport.getIp(),b.lipport.getPort());
-							LocalTCPConnection ltc=new LocalTCPConnection(soc, b.cuid);
-							ThreadTool.makeVThreadIfSupport("局域网连接监视线程", ()->{
+						
+							
+								LocalTCPConnection ltc=null;
 								try {
+									Socket soc=new Socket(b.lipport.getIp(),b.lipport.getPort());
+									ltc=new LocalTCPConnection(soc, b.cuid);
+									bol.accept(true);
 								iom.handleLocal(ltc, false);
+								return;
+								} catch (IOException e) {
+									e.printStackTrace();
 								}finally {
+									if(ltc!=null)
 									ltc.close();
 								}
-							}).start();
-						return true;
+								bol.accept(false);
+						return ;
 						} catch (IOException e) {
 							System.out.println("连接本地服务"+b.lipport+"失败，请检查你的本地服务");
 							e.printStackTrace();
 						}
-						return false;
+						bol.accept(false);
+						return;
 					});
 					return iom;
 				});
+				  }
 				/*if(whm.containsKey(uid)) {
 					nx=whm.get(uid);
 				}else {
@@ -113,6 +128,11 @@ public class KLALBServer {
 			}finally {
 				if(tcc!=null)
 				tcc.close();
+				if(nx.getCore().getRemotetcps().isEmpty()) {
+					nx.close();
+					if(uid!=null)
+						whm.remove(uid);
+				}
 			}
 		});
 		tcpl.open();
diff --git a/src/org/kne/cloud/network/klalb/LocalTCPConnection.java b/src/org/kne/cloud/network/klalb/LocalTCPConnection.java
index c94b746..077058f 100644
--- a/src/org/kne/cloud/network/klalb/LocalTCPConnection.java
+++ b/src/org/kne/cloud/network/klalb/LocalTCPConnection.java
@@ -18,9 +18,14 @@ private int cuid;
 private ServiceElement serviceElement;
 
 
-private Set<KLALBBlock> inputcache = new TreeSet<>();
+//private Set<KLALBBlock> inputcache = Collections.synchronizedSet( new TreeSet<>());
+private List<KLALBBlock>inputcache=new Vector<>();
 private List<KLALBBlock> outputcache = new Vector<>();
 
+private volatile int blocksize=8192;
+private volatile int inputcachesize=100*blocksize;
+private volatile int outputcachesize=100*blocksize;
+
 private volatile long inputcount = 1;
 private volatile long outputcount = 1;
 	public LocalTCPConnection(Socket s) throws IOException {
@@ -33,6 +38,24 @@ private volatile long outputcount = 1;
 		s.setKeepAlive(true);
 		cuid=uid;
 	}
+	public int getBlocksize() {
+		return blocksize;
+	}
+	public void setBlocksize(int blocksize) {
+		this.blocksize = blocksize;
+	}
+	public int getInputcachesize() {
+		return inputcachesize;
+	}
+	public void setInputcachesize(int inputcachesize) {
+		this.inputcachesize = inputcachesize;
+	}
+	public int getOutputcachesize() {
+		return outputcachesize;
+	}
+	public void setOutputcachesize(int outputcachesize) {
+		this.outputcachesize = outputcachesize;
+	}
 	public int getCuid() {
 		return cuid;
 	}
@@ -47,7 +70,7 @@ private volatile long outputcount = 1;
 	}
 	
 	
-	public Set<KLALBBlock> getInputcache() {
+	public List<KLALBBlock> getInputcache() {
  		return inputcache;
 	}
 	public List<KLALBBlock> getOutputcache() {
@@ -60,7 +83,7 @@ private volatile long outputcount = 1;
 		return outputcount;
 	}
 	public void unpackBlock(KLALBBlock data) throws IOException {
-		if(data.number<inputcount) {
+		/*if(data.number<inputcount) {
 			return;
 		}
 		inputcache.add(data);
@@ -74,10 +97,12 @@ private volatile long outputcount = 1;
 			}else {
 				break;
 			}
-		}
+		}*/
+		getDout().write(data.data);
+		getDout().flush();
 	}
 	public KLALBBlock packBlock() throws IOException {
-		byte[]dat=new byte[Consts.BLOCKSIZE];
+		byte[]dat=new byte[blocksize];
 		int len=getDin().read(dat);
 		
 		KLALBBlock pb=new KLALBBlock();
@@ -96,21 +121,54 @@ private volatile long outputcount = 1;
 	public BlockingDeque<KLALBBlock> getSendDeque() {
 		return sendDeque;
 	}
-	private volatile int pcu=0;
+	//private volatile int pcu=0;
 	private volatile Consumer<LocalTCPConnection> hook;
 
 	public volatile long uackt=System.nanoTime();
 	public volatile long ukeept=System.nanoTime();
-	public void setPeerCacheUsed(int cacheused) {
+	/*public void setPeerCacheUsed(int cacheused) {
 		pcu= cacheused;
 	}
 	public int getPeerCacheUsed() {
 		return pcu;
-	}
+	}*/
 	public Consumer<LocalTCPConnection> getRSTHook() {
 		return hook;
 	}
 	public void setRSTHook(Consumer<LocalTCPConnection> tc) {
 		this.hook=tc;
 	}
+	private volatile boolean pfl=false;
+	public void setPeerFull(boolean b) {
+		pfl=b;
+	}
+	public boolean isPeerFull() {
+		return pfl;
+	}
+	/*public int getSendDequeBytes() {
+		AtomicInteger a=new AtomicInteger(0);
+		getSendDeque().forEach((v)->{
+			if(v.data!=null)
+			a.addAndGet(v.data.length);
+		});
+		return a.get();
+	}*/
+	public void incInputcount() {
+		inputcount++;
+	}
+	
+	private volatile boolean  issyk=false;
+	public boolean isIssyk() {
+		return issyk;
+	}
+	public void setIssyk(boolean issyk) {
+		this.issyk = issyk;
+	}
+	private volatile boolean isrst=false;
+	public boolean isIsrst() {
+		return isrst;
+	}
+	public void setIsrst(boolean isrst) {
+		this.isrst = isrst;
+	}
 }
diff --git a/src/org/kne/cloud/network/klalb/RemoteTCPConnection.java b/src/org/kne/cloud/network/klalb/RemoteTCPConnection.java
index 05d8195..b4e2899 100644
--- a/src/org/kne/cloud/network/klalb/RemoteTCPConnection.java
+++ b/src/org/kne/cloud/network/klalb/RemoteTCPConnection.java
@@ -10,12 +10,17 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.StreamCorruptedException;
 import java.net.Socket;
+import java.net.SocketException;
 import java.net.UnknownHostException;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
+import java.util.Iterator;
+import java.util.List;
 import java.util.Queue;
 import java.util.Random;
 import java.util.UUID;
+import java.util.Vector;
 import java.util.concurrent.ArrayBlockingQueue;
 import java.util.concurrent.BlockingDeque;
 import java.util.concurrent.BlockingQueue;
@@ -124,13 +129,18 @@ public class RemoteTCPConnection extends TCPConnection {
 	public double getPredictedLatency() {
 		return latency;
 	}
-	public void predictLatency() {
+	public void predictLatency(int prio) {
 		AtomicLong data=new AtomicLong(0);
-		sendDeque.forEach((e)->{
+	for (int i = 0; i <=prio; i++) {
+		Queue<KLALBBlock> sendDequev=sendDequeList.get(i);
+	
+		sendDequev.forEach((e)->{
+			data.addAndGet(12);
 			if(e.data!=null) {
 				data.addAndGet(e.data.length);
 			}
 		});
+	}
 		latency= delay/2000000.0+data.get()*1000.0/upsm;
 	}
 
@@ -143,7 +153,7 @@ public class RemoteTCPConnection extends TCPConnection {
 		super(s);
 		tunnel=t;
 		initIOs();
-		s.setSoTimeout(Consts.SO_TIMEOUT);
+		s.setSoTimeout(Consts.PRE_SO_TIMEOUT);
 	}
 
 	private long delay = Long.MAX_VALUE;
@@ -209,11 +219,11 @@ public class RemoteTCPConnection extends TCPConnection {
 			}
 		} else if (data.number == 0) {
 			dout.write(data.command);
-			if(data.command!=0&&data.command!=1) {
+			/*if(data.command!=0&&data.command!=1) {
 			dout.writeLong(data.sn);
 			}else {
 				
-			}
+			}*/
 			switch (data.command) {
 			case 0:
 			case 1:
@@ -227,7 +237,7 @@ public class RemoteTCPConnection extends TCPConnection {
 				break;
 			}
 		} else {
-			dout.writeInt(data.cacheused);
+			dout.writeBoolean(data.cacheused);
 		}
 
 		if(isflush)
@@ -262,11 +272,11 @@ public class RemoteTCPConnection extends TCPConnection {
 			}
 		} else if (klb.number == 0) {
 			klb.command = din.read();
-			if(klb.command!=0&&klb.command!=1) {
+			/*if(klb.command!=0&&klb.command!=1) {
 		klb.sn = din.readLong();
 			}else {
 				klb.sn=0;
-			}
+			}*/
 			switch (klb.command) {
 			case 0:
 			case 1:
@@ -280,7 +290,7 @@ public class RemoteTCPConnection extends TCPConnection {
 					break;
 			}
 		} else {
-			klb.cacheused = din.readInt();
+			klb.cacheused = din.readBoolean();
 		}
 
 		System.out.println("RECEIVE:" + klb);
@@ -299,30 +309,36 @@ public class RemoteTCPConnection extends TCPConnection {
 		}
 	}
 	
-	private Queue<KLALBBlock> NDsendDeque = new ConcurrentLinkedQueue<KLALBBlock>();
+	
+	private List<Queue<KLALBBlock>> sendDequeList =new Vector<Queue<KLALBBlock>>();
+	{
+		for(int i=0;i<11;i++) {
+			sendDequeList.add(new ConcurrentLinkedQueue<KLALBBlock>());
+		}
+	}
+	
+	public List<Queue<KLALBBlock>> getSendDequeList() {
+		return sendDequeList;
+	}
+	private Object lock=new Object();
+	public void addBlock(KLALBBlock blk,int prio) {
+		sendDequeList.get(prio).add(blk);
+		synchronized (lock) {
+			lock.notifyAll();
+		}
+	}
+/*	private Queue<KLALBBlock> NDsendDeque = new ConcurrentLinkedQueue<KLALBBlock>();
 
 	public Queue<KLALBBlock> getNDSendDeque() {
 		return NDsendDeque;
 	}
-	//private Queue<KLALBBlock> sendDeque = new ConcurrentLinkedQueue<KLALBBlock>();
-	private Queue<KLALBBlock> sendDeque = new PriorityBlockingQueue<KLALBBlock>(2, new Comparator<KLALBBlock>() {
-
-		@Override
-		public int compare(KLALBBlock o1, KLALBBlock o2) {
-			if(o1.resend>o2.resend) {
-				return -1;
-				}else if(o1.resend<o2.resend) {
-					return 1;
-				}else {
-			return 0;
-			}
-		}
-	});
+	private Queue<KLALBBlock> sendDeque = new ConcurrentLinkedQueue<KLALBBlock>();
 
 	public Queue<KLALBBlock> getSendDeque() {
 		return sendDeque;
-	}
+	}*/
 
+	
 	public void handshake(int x) throws IOException {
 		for(int i=0;i<x;i++) {
 			getDout().write(0);
@@ -338,4 +354,51 @@ public class RemoteTCPConnection extends TCPConnection {
 		
 	}
 
+	public void lock(long to) throws InterruptedException {
+		synchronized (lock) {
+			lock.wait(to);
+		}
+	}
+
+	public void ackRemove(long number, int cuid) {
+		for (Iterator<Queue<KLALBBlock>> iterator = sendDequeList.iterator(); iterator.hasNext();) {
+			Queue<KLALBBlock> queue = iterator.next();
+			queue.removeIf((vb)->{
+				return vb.number==number&&vb.cuid==cuid;
+			});
+		}
+	}
+
+	public boolean isEmpty() {
+		synchronized (sendDequeList) {
+			for (Iterator<Queue<KLALBBlock>> iterator = sendDequeList.iterator(); iterator.hasNext();) {
+				Queue<KLALBBlock> queue = (Queue<KLALBBlock>) iterator.next();
+				if(!queue.isEmpty()) {
+					return false;
+				}
+			}
+		}
+		return true;
+	}
+
+	public KLALBBlock getNextBlock() {
+		synchronized (sendDequeList) {
+			for (Iterator<Queue<KLALBBlock>> iterator = sendDequeList.iterator(); iterator.hasNext();) {
+				Queue<KLALBBlock> queue = (Queue<KLALBBlock>) iterator.next();
+				KLALBBlock v=queue.poll();
+				if(v!=null)
+					return v;
+			}
+		}
+		return null;
+	}
+
+	public void setSoTimeout(int soTimeout) {
+		try {
+			connect.setSoTimeout(soTimeout);
+		} catch (SocketException e) {
+			//e.printStackTrace();
+		}
+	}
+
 }
diff --git a/src/org/kne/cloud/network/klalb/TCPConnection.java b/src/org/kne/cloud/network/klalb/TCPConnection.java
index 7e92a4f..d3a2ce0 100644
--- a/src/org/kne/cloud/network/klalb/TCPConnection.java
+++ b/src/org/kne/cloud/network/klalb/TCPConnection.java
@@ -63,7 +63,7 @@ public class TCPConnection {
 	
 	protected void initIO() throws IOException {
 		dout = new DataOutputStream( connect.getOutputStream());
-		din = new DataInputStream(connect.getInputStream());
+		din = new DataInputStream( connect.getInputStream());
 	}
 
 	public boolean isOpen() {
diff --git a/src/org/kne/cloud/network/nathole/TCPNatHoleTeat.java b/src/org/kne/cloud/network/nathole/TCPNatHoleTeat.java
new file mode 100644
index 0000000..c17e876
--- /dev/null
+++ b/src/org/kne/cloud/network/nathole/TCPNatHoleTeat.java
@@ -0,0 +1,67 @@
+package org.kne.cloud.network.nathole;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.SocketTimeoutException;
+import java.net.UnknownHostException;
+
+public class TCPNatHoleTeat {
+	public static void main(String[] args) throws IOException {
+
+		x("183.198.152.240", 12187);
+
+	}
+
+	private static void x(String nat, int port) throws IOException {
+		for (int i = 10000; i < 20000; i++) {
+			System.out.println("try" + i);
+			Socket s = null;
+			ServerSocket srs = null;
+			try {
+				s = new Socket();
+				s.bind(new InetSocketAddress(InetAddress.getByName("0.0.0.0"), i));
+				try {
+				s.connect(new InetSocketAddress(InetAddress.getByName("1.1.1.1"), 443), 1);
+				}catch(SocketTimeoutException e) {
+					
+				}
+				s.close();
+
+				srs = new ServerSocket();
+				srs.setReuseAddress(true);
+				srs.bind(new InetSocketAddress("0.0.0.0", i));
+				ServerSocket srs2 = srs;
+				new Thread(() -> {
+					try {
+						while (true) {
+							Socket sa = srs2.accept();
+							System.out.println(sa.toString());
+							//sa.close();
+						//	System.exit(0);
+						}
+					} catch (IOException e) {
+						// e.printStackTrace();
+					}
+				}).start();
+
+				/*Socket ste = new Socket();
+				try {
+					ste.connect(new InetSocketAddress(nat, port), 1);
+				} catch (SocketTimeoutException e) {
+
+				}
+				ste.close();*/
+			} catch (IOException e) {
+				e.printStackTrace();
+			} finally {
+				if (s != null)
+					s.close();
+				/*if (srs != null)
+					srs.close();*/
+			}
+		}
+	}
+}