diff --git a/docker/WasmEdge/Dockerfile b/docker/WasmEdge/Dockerfile
index 1ba7654..18b1223 100644
--- a/docker/WasmEdge/Dockerfile
+++ b/docker/WasmEdge/Dockerfile
@@ -14,7 +14,7 @@ FROM ubuntu:18.04 as wasm_serverless
 LABEL maintainers="ActivePeter"
 LABEL description="Wasm serverless platform"
 
-RUN apt-get update && apt-get install -y python3 python3-pip git && mkdir -p /tmp/install
+RUN apt-get update && apt-get install -y python3 python3-pip git iproute2 iputils-ping && mkdir -p /tmp/install
 # COPY --from=builder /root/.wasmedge /root/.wasmedge
 COPY wasm_edge.py /tmp/install/wasm_edge.py
 COPY WasmEdge-0.13.3-manylinux2014_x86_64.tar.gz /tmp/install/WasmEdge-0.13.3-manylinux2014_x86_64.tar.gz
diff --git a/docker/WasmServerless/wasm_serverless_entrypoint.sh b/docker/WasmServerless/wasm_serverless_entrypoint.sh
index 754818b..3e23d95 100644
--- a/docker/WasmServerless/wasm_serverless_entrypoint.sh
+++ b/docker/WasmServerless/wasm_serverless_entrypoint.sh
@@ -3,6 +3,12 @@
 echo "Node id: ${WASM_SERVERLESS_NODEID}"
 echo "Who am i: $(whoami)"
 
+# tc qdisc add dev eth0 root netem delay 100ms
+
+# tc qdisc add dev eth0 root tbf rate 1mbit burst 10kb latency 70ms
+
+timeout 10 ping baidu.com
+
 cd /usr/local/bin/
 ls /etc/wasm_serverless/
 
diff --git a/scripts/deploy_cluster/_gen_each_node_compose.py b/scripts/deploy_cluster/_gen_each_node_compose.py
index b9a9a37..ddd29a3 100644
--- a/scripts/deploy_cluster/_gen_each_node_compose.py
+++ b/scripts/deploy_cluster/_gen_each_node_compose.py
@@ -14,6 +14,7 @@ def read_yaml(file_path):
 
 def generate_docker_compose(ip, nodes):
     services = {}
+    
     for key, node in nodes.items():
         service_name = f"node{key}"
 
@@ -35,7 +36,8 @@ def generate_docker_compose(ip, nodes):
             'volumes': ['/root/wasm_serverless_deploy:/etc/wasm_serverless/config'],
             'environment': {
                 'WASM_SERVERLESS_NODEID': key
-            }
+            },
+            'privileged': True # for tc control
         }
 
     compose_data = {'version': '3', 'services': services}