diff --git a/scenario/extensions/DataRateMerger.cpp b/scenario/extensions/DataRateMerger.cpp
index caf8936..91885b5 100644
--- a/scenario/extensions/DataRateMerger.cpp
+++ b/scenario/extensions/DataRateMerger.cpp
@@ -65,7 +65,7 @@ namespace nfd {
             if (!this->isInitial) {
                 // 第一次初始化,给所有可能的下一跳设置一个初始的转发权重
                 for (selected = nexthops.begin(); selected != nexthops.end(); ++selected) {
-                    this->addRate(selected->getFace().getId(), 10000);
+                    this->addRate(selected->getFace().getId(), 100000);
                 }
                 this->isInitial = true;
                 return nexthops.begin();
diff --git a/scenario/scenarios/abilene.cpp b/scenario/scenarios/abilene.cpp
index 06460bd..e4070f3 100644
--- a/scenario/scenarios/abilene.cpp
+++ b/scenario/scenarios/abilene.cpp
@@ -22,7 +22,7 @@ main(int argc, char* argv[])
   ndnHelper.InstallAll();
 
   // Choosing forwarding strategy
-  ndn::StrategyChoiceHelper::InstallAll("/", "/localhost/nfd/strategy/best-route");
+  // ndn::StrategyChoiceHelper::InstallAll("/", "/localhost/nfd/strategy/best-route");
   ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R0"), "/");
   ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R1"), "/");
   ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R2"), "/");
@@ -34,7 +34,7 @@ main(int argc, char* argv[])
   ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R8"), "/");
   ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R9"), "/");
   ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R10"), "/");
-  //ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R3"), "/");
+  //xianzai mei xie duo yuan duo jing
 
   // Installing global routing interface on all nodes
   ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
@@ -133,7 +133,8 @@ main(int argc, char* argv[])
 
   
   // Calculate and install FIBs
-  ndn::GlobalRoutingHelper::CalculateRoutes();
+  // ndn::GlobalRoutingHelper::CalculateRoutes();
+  ndn::GlobalRoutingHelper::CalculateAllPossibleRoutes();
 
   Simulator::Stop(Seconds(20.0));
 
diff --git a/scenario/scenarios/easyloop.cpp b/scenario/scenarios/easyloop.cpp
new file mode 100644
index 0000000..12ca2c1
--- /dev/null
+++ b/scenario/scenarios/easyloop.cpp
@@ -0,0 +1,90 @@
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/ndnSIM-module.h"
+#include "../extensions/random-load-balancer-strategy.hpp"
+
+namespace ns3 {
+
+int
+main(int argc, char* argv[])
+{
+  CommandLine cmd;
+  cmd.Parse(argc, argv);
+
+  AnnotatedTopologyReader topologyReader("", 25);
+  topologyReader.SetFileName("topologies/topo_easyloop.txt");
+  topologyReader.Read();
+
+  // Install NDN stack on all nodes
+  ndn::StackHelper ndnHelper;
+  ndnHelper.setPolicy("nfd::cs::lru");
+  ndnHelper.setCsSize(10000);
+  ndnHelper.InstallAll();
+
+  // Choosing forwarding strategy
+  //ndn::StrategyChoiceHelper::InstallAll("/", "/localhost/nfd/strategy/best-route");
+  ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R1"), "/");
+  ndn::StrategyChoiceHelper::Install<nfd::fw::RandomLoadBalancerStrategy>(Names::Find<Node>("R2"), "/");
+
+  // Installing global routing interface on all nodes
+  ndn::GlobalRoutingHelper ndnGlobalRoutingHelper;
+  ndnGlobalRoutingHelper.InstallAll();
+
+  // Getting containers for the consumer/producer
+  Ptr<Node> C1 = Names::Find<Node>("C1");
+  Ptr<Node> C2 = Names::Find<Node>("C2");
+
+  Ptr<Node> P1 = Names::Find<Node>("P1");
+
+  ndn::AppHelper consumerHelper("ns3::ndn::ConsumerNWFQ");
+  consumerHelper.SetAttribute("Dsz", UintegerValue(8616));
+  //consumerHelper.SetAttribute("Frequency", StringValue("100")); // 100 interests a second
+
+
+  // on the first consumer node install a Consumer application
+  // that will express interests in /dst1 namespace
+  // C1
+  consumerHelper.SetPrefix("/A");
+  consumerHelper.SetAttribute("Tos", UintegerValue(1));
+  consumerHelper.Install("C1");
+
+  // C2
+  consumerHelper.SetPrefix("/B");
+  consumerHelper.SetAttribute("Tos", UintegerValue(1));
+  consumerHelper.Install("C2");
+
+  ndn::AppHelper producerHelper("ns3::ndn::Producer");
+  producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
+
+  // Register /dst1 prefix with global routing controller and
+  // install producer that will satisfy Interests in /dst1 namespace
+  // P1
+  ndnGlobalRoutingHelper.AddOrigins("/A", P1);
+  producerHelper.SetPrefix("/A");
+  producerHelper.Install(P1);
+
+  ndnGlobalRoutingHelper.AddOrigins("/B", P1);
+  producerHelper.SetPrefix("/B");
+  producerHelper.Install(P1);
+ 
+  // Calculate and install FIBs
+  ndn::GlobalRoutingHelper::CalculateAllPossibleRoutes();
+
+  Simulator::Stop(Seconds(10.0));
+
+  ndn::L3RateTracer::InstallAll("easyloop.txt", Seconds(0.5));
+  ndn::AppDelayTracer::InstallAll("delay_easyloop.txt");
+  L2RateTracer::InstallAll("drop_easyloop.txt", Seconds(0.5));
+  Simulator::Run();
+  Simulator::Destroy();
+
+  return 0;
+}
+
+} // namespace ns3
+
+int
+main(int argc, char* argv[])
+{
+  return ns3::main(argc, argv);
+}
diff --git a/scenario/topologies/topo_abilene.txt b/scenario/topologies/topo_abilene.txt
index 974468e..6348d96 100644
--- a/scenario/topologies/topo_abilene.txt
+++ b/scenario/topologies/topo_abilene.txt
@@ -54,4 +54,4 @@ R9          R10          20Mbps      1       10ms    20
 R10          R0          10Mbps      1       10ms    20
 R2          R9          20Mbps      1       10ms    20
 R3          R8          10Mbps      1       10ms    20
-R5          R7          15Mbps      1       10ms    20
\ No newline at end of file
+R5          R7          15Mbps      1       10ms    20
diff --git a/scenario/topologies/topo_easyloop.txt b/scenario/topologies/topo_easyloop.txt
new file mode 100644
index 0000000..00881d3
--- /dev/null
+++ b/scenario/topologies/topo_easyloop.txt
@@ -0,0 +1,22 @@
+# topo_easyloop
+
+router
+
+# node  comment     yPos     xPos
+C2      NA      1       5
+C1      NA      1       1
+R1      NA      2       2
+R2      NA      2       4
+R3      NA      3       3
+P1      NA      4       3
+
+
+link
+
+# srcNode   dstNode     bandwidth   metric  delay   queue
+C1          R1          100Mbps      1       10ms    20
+C2          R2          100Mbps      1       10ms    20
+R1          R2          10Mbps       1       10ms    20
+R1          R3          10Mbps       1       10ms    20
+R2          R3          10Mbps       1       10ms    20
+P1          R3          100Mbps       1       10ms    20