diff --git a/cpp/ppc-framework/gateway/GatewayProtocol.h b/cpp/ppc-framework/gateway/GatewayProtocol.h
index b91137d6..ebd9b7a3 100644
--- a/cpp/ppc-framework/gateway/GatewayProtocol.h
+++ b/cpp/ppc-framework/gateway/GatewayProtocol.h
@@ -28,7 +28,10 @@ enum class GatewayPacketType : uint16_t
     BroadcastMessage = 0x01,
     RouterTableSyncSeq = 0x10,
     RouterTableResponse = 0x11,
-    RouterTableRequest = 0x12
+    RouterTableRequest = 0x12,
+    SyncNodeSeq = 0x20,
+    RequestNodeStatus = 0x21,
+    ResponseNodeStatus = 0x22,
 };
 
 enum class GatewayMsgExtFlag : uint16_t
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.cpp b/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.cpp
index 7b4240c9..6707fae9 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.cpp
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.cpp
@@ -51,6 +51,8 @@ GatewayImpl::GatewayImpl(Service::Ptr const& service,
     m_service->registerMsgHandler((uint16_t)GatewayPacketType::BroadcastMessage,
         boost::bind(&GatewayImpl::onReceiveBroadcastMessage, this, boost::placeholders::_1,
             boost::placeholders::_2));
+    m_gatewayRouterManager = std::make_shared<GatewayRouterManager>(
+        m_service, m_gatewayInfoFactory, m_localRouter, m_peerRouter);
 }
 
 void GatewayImpl::start()
@@ -63,6 +65,7 @@ void GatewayImpl::start()
     m_running = true;
     m_service->start();
     m_p2pRouterManager->start();
+    m_gatewayRouterManager->start();
     GATEWAY_LOG(INFO) << LOG_DESC("Start gateway success");
 }
 
@@ -76,6 +79,7 @@ void GatewayImpl::stop()
     m_running = false;
     m_service->stop();
     m_p2pRouterManager->stop();
+    m_gatewayRouterManager->stop();
     GATEWAY_LOG(INFO) << LOG_DESC("Stop gateway success");
 }
 
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.h b/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.h
index b71bd5b1..9d2ced23 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.h
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/GatewayImpl.h
@@ -22,6 +22,7 @@
 #include "ppc-gateway/gateway/router/GatewayNodeInfo.h"
 #include "ppc-gateway/p2p/Service.h"
 #include "ppc-gateway/p2p/router/RouterManager.h"
+#include "router/GatewayRouterManager.h"
 #include "router/LocalRouter.h"
 #include "router/PeerRouterTable.h"
 
@@ -80,6 +81,7 @@ class GatewayImpl : public IGateway, public std::enable_shared_from_this<Gateway
     std::string m_agency;
 
     RouterManager::Ptr m_p2pRouterManager;
+    GatewayRouterManager::Ptr m_gatewayRouterManager;
 
     GatewayNodeInfoFactory::Ptr m_gatewayInfoFactory;
     LocalRouter::Ptr m_localRouter;
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfo.h b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfo.h
index e25db02e..e73f2f1d 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfo.h
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfo.h
@@ -19,7 +19,9 @@
  */
 #pragma once
 #include "ppc-framework/protocol/INodeInfo.h"
+#include <bcos-utilities/Log.h>
 #include <memory>
+#include <sstream>
 namespace ppc::gateway
 {
 class GatewayNodeInfo
@@ -33,6 +35,9 @@ class GatewayNodeInfo
     virtual std::string const& p2pNodeID() const = 0;
     // the agency
     virtual std::string const& agency() const = 0;
+    virtual uint32_t statusSeq() const = 0;
+    virtual void setStatusSeq(uint32_t statusSeq) = 0;
+
     // get the node information by nodeID
     virtual ppc::protocol::INodeInfo::Ptr nodeInfo(bcos::bytes const& nodeID) const = 0;
     virtual bool tryAddNodeInfo(ppc::protocol::INodeInfo::Ptr const& nodeInfo) = 0;
@@ -51,6 +56,7 @@ class GatewayNodeInfo
     virtual void unRegisterTopic(bcos::bytes const& nodeID, std::string const& topic) = 0;
 
     virtual std::map<bcos::bytes, ppc::protocol::INodeInfo::Ptr> nodeList() const = 0;
+    virtual uint16_t nodeSize() const = 0;
 };
 
 class GatewayNodeInfoFactory
@@ -71,4 +77,13 @@ struct GatewayNodeInfoCmp
     }
 };
 using GatewayNodeInfos = std::set<GatewayNodeInfo::Ptr, GatewayNodeInfoCmp>;
+
+inline std::string printNodeStatus(GatewayNodeInfo::Ptr const& status)
+{
+    std::ostringstream stringstream;
+    stringstream << LOG_KV("p2pNodeID", status->p2pNodeID()) << LOG_KV("agency", status->agency())
+                 << LOG_KV("statusSeq", status->statusSeq())
+                 << LOG_KV("nodeSize", status->nodeSize());
+    return stringstream.str();
+}
 }  // namespace ppc::gateway
\ No newline at end of file
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.cpp b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.cpp
index f7c9cefe..3c718fe9 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.cpp
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.cpp
@@ -36,6 +36,16 @@ std::string const& GatewayNodeInfoImpl::agency() const
 {
     return m_inner()->agency;
 }
+
+uint32_t GatewayNodeInfoImpl::statusSeq() const
+{
+    return m_inner()->statusSeq;
+}
+void GatewayNodeInfoImpl::setStatusSeq(uint32_t statusSeq)
+{
+    m_inner()->statusSeq = statusSeq;
+}
+
 // get the node information by nodeID
 INodeInfo::Ptr GatewayNodeInfoImpl::nodeInfo(bcos::bytes const& nodeID) const
 {
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.h b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.h
index cb0dfc10..72c6d440 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.h
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayNodeInfoImpl.h
@@ -66,6 +66,10 @@ class GatewayNodeInfoImpl : public GatewayNodeInfo
         bcos::WriteGuard l(x_nodeList);
         return m_nodeList;
     }
+    uint32_t statusSeq() const override;
+    void setStatusSeq(uint32_t statusSeq) override;
+
+    virtual uint16_t nodeSize() const override { return m_nodeList.size(); }
 
 private:
     std::function<ppctars::GatewayNodeInfo*()> m_inner;
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayRouterManager.cpp b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayRouterManager.cpp
new file mode 100644
index 00000000..a26844e4
--- /dev/null
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayRouterManager.cpp
@@ -0,0 +1,183 @@
+/**
+ *  Copyright (C) 2023 WeDPR.
+ *  SPDX-License-Identifier: Apache-2.0
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ * @file GatewayRouterManager.h
+ * @author: yujiechen
+ * @date 2024-08-26
+ */
+#include "GatewayRouterManager.h"
+#include "ppc-framework/gateway/GatewayProtocol.h"
+#include <ppc-gateway/Common.h>
+
+using namespace ppc::protocol;
+using namespace ppc;
+using namespace bcos;
+using namespace ppc::gateway;
+using namespace bcos::boostssl;
+using namespace bcos::boostssl::ws;
+
+GatewayRouterManager::GatewayRouterManager(Service::Ptr service,
+    GatewayNodeInfoFactory::Ptr nodeStatusFactory, LocalRouter::Ptr localRouter,
+    PeerRouterTable::Ptr peerRouter)
+  : m_service(std::move(service)),
+    m_nodeStatusFactory(std::move(nodeStatusFactory)),
+    m_localRouter(std::move(localRouter)),
+    m_peerRouter(std::move(peerRouter))
+{
+    m_service->registerMsgHandler((uint16_t)GatewayPacketType::SyncNodeSeq,
+        boost::bind(&GatewayRouterManager::onReceiveNodeSeqMessage, this, boost::placeholders::_1,
+            boost::placeholders::_2));
+
+    m_service->registerMsgHandler((uint16_t)GatewayPacketType::RequestNodeStatus,
+        boost::bind(&GatewayRouterManager::onReceiveRequestNodeStatusMsg, this,
+            boost::placeholders::_1, boost::placeholders::_2));
+
+    m_service->registerMsgHandler((uint16_t)GatewayPacketType::ResponseNodeStatus,
+        boost::bind(&GatewayRouterManager::onRecvResponseNodeStatusMsg, this,
+            boost::placeholders::_1, boost::placeholders::_2));
+
+    m_timer = std::make_shared<Timer>(SEQ_SYNC_PERIOD, "seqSync");
+    // broadcast seq periodically
+    m_timer->registerTimeoutHandler([this]() { broadcastStatusSeq(); });
+}
+
+
+void GatewayRouterManager::start()
+{
+    if (m_running)
+    {
+        GATEWAY_LOG(INFO) << LOG_DESC("GatewayRouterManager has already been started");
+        return;
+    }
+    m_running = true;
+    m_timer->start();
+    GATEWAY_LOG(INFO) << LOG_DESC("start GatewayRouterManager success");
+}
+
+void GatewayRouterManager::stop()
+{
+    if (!m_running)
+    {
+        GATEWAY_LOG(INFO) << LOG_DESC("GatewayRouterManager has already been stopped");
+        return;
+    }
+    m_running = false;
+    m_timer->stop();
+    GATEWAY_LOG(INFO) << LOG_DESC("stop GatewayRouterManager success");
+}
+
+void GatewayRouterManager::onReceiveNodeSeqMessage(MessageFace::Ptr msg, WsSession::Ptr session)
+{
+    auto statusSeq =
+        boost::asio::detail::socket_ops::network_to_host_long(*((uint32_t*)msg->payload()->data()));
+
+    auto p2pMessage = std::dynamic_pointer_cast<Message>(msg);
+    auto const& from = (p2pMessage->header()->srcGwNode().size() > 0) ?
+                           p2pMessage->header()->srcGwNode() :
+                           session->nodeId();
+    auto statusSeqChanged = statusChanged(from, statusSeq);
+    if (!statusSeqChanged)
+    {
+        return;
+    }
+    // status changed, request for the nodeStatus
+    GATEWAY_LOG(TRACE) << LOG_DESC("onReceiveNodeSeqMessage") << LOG_KV("from", from)
+                       << LOG_KV("statusSeq", statusSeq);
+    m_service->asyncSendMessageByP2PNodeID(
+        (uint16_t)GatewayPacketType::RequestNodeStatus, from, std::make_shared<bcos::bytes>());
+}
+
+
+bool GatewayRouterManager::statusChanged(std::string const& p2pNodeID, uint32_t seq)
+{
+    bool ret = true;
+    ReadGuard l(x_p2pID2Seq);
+    auto it = m_p2pID2Seq.find(p2pNodeID);
+    if (it != m_p2pID2Seq.end())
+    {
+        ret = (seq > it->second);
+    }
+    return ret;
+}
+
+void GatewayRouterManager::broadcastStatusSeq()
+{
+    m_timer->restart();
+    auto message = std::dynamic_pointer_cast<Message>(m_service->messageFactory()->buildMessage());
+    message->setPacketType((uint16_t)GatewayPacketType::SyncNodeSeq);
+    auto seq = m_localRouter->statusSeq();
+    auto statusSeq = boost::asio::detail::socket_ops::host_to_network_long(seq);
+    auto payload = std::make_shared<bytes>((byte*)&statusSeq, (byte*)&statusSeq + 4);
+    message->setPayload(payload);
+    GATEWAY_LOG(TRACE) << LOG_DESC("broadcastStatusSeq") << LOG_KV("seq", seq);
+    m_service->asyncBroadcastMessage(message);
+}
+
+
+void GatewayRouterManager::onReceiveRequestNodeStatusMsg(
+    MessageFace::Ptr msg, WsSession::Ptr session)
+{
+    auto p2pMessage = std::dynamic_pointer_cast<Message>(msg);
+    auto const& from = (!p2pMessage->header()->srcGwNode().empty()) ?
+                           p2pMessage->header()->srcGwNode() :
+                           session->nodeId();
+
+    auto nodeStatusData = m_localRouter->generateNodeStatus();
+    if (!nodeStatusData)
+    {
+        GATEWAY_LOG(WARNING) << LOG_DESC("onReceiveRequestNodeStatusMsg: generate nodeInfo error")
+                             << LOG_KV("from", from);
+        return;
+    }
+    GATEWAY_LOG(TRACE) << LOG_DESC("onReceiveRequestNodeStatusMsg: response the latest nodeStatus")
+                       << LOG_KV("from", from);
+    m_service->asyncSendMessageByP2PNodeID(
+        (uint16_t)GatewayPacketType::ResponseNodeStatus, from, nodeStatusData);
+}
+
+void GatewayRouterManager::onRecvResponseNodeStatusMsg(MessageFace::Ptr msg, WsSession::Ptr session)
+{
+    auto nodeStatus = m_nodeStatusFactory->build();
+    nodeStatus->decode(bytesConstRef(msg->payload()->data(), msg->payload()->size()));
+
+    auto p2pMessage = std::dynamic_pointer_cast<Message>(msg);
+    auto const& from = (!p2pMessage->header()->srcGwNode().empty()) ?
+                           p2pMessage->header()->srcGwNode() :
+                           session->nodeId();
+
+    GATEWAY_LOG(INFO) << LOG_DESC("onRecvResponseNodeStatusMsg") << LOG_KV("from", from)
+                      << LOG_KV("statusSeq", nodeStatus->statusSeq())
+                      << LOG_KV("agency", nodeStatus->agency());
+    updatePeerNodeStatus(from, nodeStatus);
+}
+
+void GatewayRouterManager::updatePeerNodeStatus(
+    std::string const& p2pID, GatewayNodeInfo::Ptr status)
+{
+    auto statusSeq = status->statusSeq();
+    {
+        UpgradableGuard l(x_p2pID2Seq);
+        if (m_p2pID2Seq.contains(p2pID) && (m_p2pID2Seq.at(p2pID) >= statusSeq))
+        {
+            return;
+        }
+        UpgradeGuard ul(l);
+        m_p2pID2Seq[p2pID] = statusSeq;
+    }
+    GATEWAY_LOG(INFO) << LOG_DESC("updatePeerNodeStatus") << LOG_KV("from", p2pID)
+                      << LOG_KV("statusSeq", status->statusSeq())
+                      << LOG_KV("agency", status->agency());
+    m_peerRouter->updateGatewayInfo(status);
+}
\ No newline at end of file
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayRouterManager.h b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayRouterManager.h
new file mode 100644
index 00000000..4cf9b0ba
--- /dev/null
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/GatewayRouterManager.h
@@ -0,0 +1,70 @@
+/**
+ *  Copyright (C) 2023 WeDPR.
+ *  SPDX-License-Identifier: Apache-2.0
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ * @file GatewayRouterManager.h
+ * @author: yujiechen
+ * @date 2024-08-26
+ */
+#pragma once
+#include "ppc-gateway/gateway/router/GatewayNodeInfo.h"
+#include "ppc-gateway/gateway/router/LocalRouter.h"
+#include "ppc-gateway/gateway/router/PeerRouterTable.h"
+#include "ppc-gateway/p2p/Service.h"
+#include <bcos-utilities/Timer.h>
+#include <memory>
+
+namespace ppc::gateway
+{
+class GatewayRouterManager
+{
+public:
+    using Ptr = std::shared_ptr<GatewayRouterManager>;
+    GatewayRouterManager(Service::Ptr service, GatewayNodeInfoFactory::Ptr nodeStatusFactory,
+        LocalRouter::Ptr localRouter, PeerRouterTable::Ptr peerRouter);
+    virtual void start();
+    virtual void stop();
+
+protected:
+    virtual void onReceiveNodeSeqMessage(
+        bcos::boostssl::MessageFace::Ptr msg, bcos::boostssl::ws::WsSession::Ptr session);
+
+    virtual void onReceiveRequestNodeStatusMsg(
+        bcos::boostssl::MessageFace::Ptr msg, bcos::boostssl::ws::WsSession::Ptr session);
+
+    virtual void onRecvResponseNodeStatusMsg(
+        bcos::boostssl::MessageFace::Ptr msg, bcos::boostssl::ws::WsSession::Ptr session);
+    bool statusChanged(std::string const& p2pNodeID, uint32_t seq);
+    void broadcastStatusSeq();
+
+    void updatePeerNodeStatus(std::string const& p2pID, GatewayNodeInfo::Ptr status);
+
+private:
+    Service::Ptr m_service;
+    GatewayNodeInfoFactory::Ptr m_nodeStatusFactory;
+    std::shared_ptr<bcos::Timer> m_timer;
+
+    LocalRouter::Ptr m_localRouter;
+    PeerRouterTable::Ptr m_peerRouter;
+
+    bool m_running = false;
+
+    // P2pID => statusSeq
+    std::map<std::string, uint32_t> m_p2pID2Seq;
+    mutable bcos::SharedMutex x_p2pID2Seq;
+
+    // TODO: make this configurable
+    unsigned const SEQ_SYNC_PERIOD = 3000;
+};
+}  // namespace ppc::gateway
\ No newline at end of file
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.cpp b/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.cpp
index 9df4e45f..7d934daa 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.cpp
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.cpp
@@ -25,6 +25,7 @@ using namespace bcos;
 using namespace ppc::protocol;
 using namespace ppc::gateway;
 
+// Note: the change of the topic will not trigger router-update
 void LocalRouter::registerTopic(bcos::bytesConstRef _nodeID, std::string const& topic)
 {
     m_routerInfo->registerTopic(_nodeID.toBytes(), topic);
@@ -48,6 +49,7 @@ void LocalRouter::registerTopic(bcos::bytesConstRef _nodeID, std::string const&
     }
 }
 
+// Note: the change of the topic will not trigger router-update
 void LocalRouter::unRegisterTopic(bcos::bytesConstRef _nodeID, std::string const& topic)
 {
     m_routerInfo->unRegisterTopic(_nodeID.toBytes(), topic);
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.h b/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.h
index 194ef6ab..8b931c9c 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.h
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/LocalRouter.h
@@ -42,10 +42,19 @@ class LocalRouter
     virtual bool registerNodeInfo(ppc::protocol::INodeInfo::Ptr const& nodeInfo)
     {
         nodeInfo->setFront(m_frontBuilder->buildClient(nodeInfo->endPoint()));
-        return m_routerInfo->tryAddNodeInfo(nodeInfo);
+        auto ret = m_routerInfo->tryAddNodeInfo(nodeInfo);
+        if (ret)
+        {
+            increaseSeq();
+        }
+        return ret;
     }
 
-    virtual void unRegisterNode(bcos::bytes const& nodeID) { m_routerInfo->removeNodeInfo(nodeID); }
+    virtual void unRegisterNode(bcos::bytes const& nodeID)
+    {
+        m_routerInfo->removeNodeInfo(nodeID);
+        increaseSeq();
+    }
 
     virtual void registerTopic(bcos::bytesConstRef nodeID, std::string const& topic);
     virtual void unRegisterTopic(bcos::bytesConstRef nodeID, std::string const& topic);
@@ -57,10 +66,28 @@ class LocalRouter
     virtual bool dispatcherMessage(ppc::protocol::Message::Ptr const& msg,
         ppc::protocol::ReceiveMsgFunc callback, bool holding = true);
 
+    std::shared_ptr<bcos::bytes> generateNodeStatus()
+    {
+        auto data = std::make_shared<bcos::bytes>();
+        m_routerInfo->encode(*data);
+        return data;
+    }
+    uint32_t statusSeq() { return m_statusSeq; }
+
+private:
+    uint32_t increaseSeq()
+    {
+        uint32_t statusSeq = ++m_statusSeq;
+        return statusSeq;
+    }
+
+
 private:
     ppc::front::IFrontBuilder::Ptr m_frontBuilder;
     GatewayNodeInfo::Ptr m_routerInfo;
 
+    std::atomic<uint32_t> m_statusSeq{1};
+
     // NodeID=>topics
     using Topics = std::set<std::string>;
     std::map<bcos::bytes, Topics> m_topicInfo;
diff --git a/cpp/ppc-gateway/ppc-gateway/gateway/router/PeerRouterTable.cpp b/cpp/ppc-gateway/ppc-gateway/gateway/router/PeerRouterTable.cpp
index a2bccd0a..e5367eda 100644
--- a/cpp/ppc-gateway/ppc-gateway/gateway/router/PeerRouterTable.cpp
+++ b/cpp/ppc-gateway/ppc-gateway/gateway/router/PeerRouterTable.cpp
@@ -33,8 +33,16 @@ void PeerRouterTable::updateGatewayInfo(GatewayNodeInfo::Ptr const& gatewayInfo)
     for (auto const& it : nodeList)
     {
         // update nodeID => gatewayInfos
+        if (!m_nodeID2GatewayInfos.count(it.first))
+        {
+            m_nodeID2GatewayInfos.insert(std::make_pair(it.first, GatewayNodeInfos()));
+        }
         m_nodeID2GatewayInfos[it.first].insert(gatewayInfo);
     }
+    if (!m_agency2GatewayInfos.count(gatewayInfo->agency()))
+    {
+        m_agency2GatewayInfos.insert(std::make_pair(gatewayInfo->agency(), GatewayNodeInfos()));
+    }
     // update agency => gatewayInfos
     m_agency2GatewayInfos[gatewayInfo->agency()].insert(gatewayInfo);
 }
diff --git a/cpp/ppc-gateway/ppc-gateway/p2p/router/RouterManager.h b/cpp/ppc-gateway/ppc-gateway/p2p/router/RouterManager.h
index a1701c9e..64ebf4c8 100644
--- a/cpp/ppc-gateway/ppc-gateway/p2p/router/RouterManager.h
+++ b/cpp/ppc-gateway/ppc-gateway/p2p/router/RouterManager.h
@@ -61,7 +61,6 @@ class RouterManager
     // for message forward
     Service::Ptr m_service;
     std::shared_ptr<bcos::Timer> m_routerTimer;
-    std::atomic<uint32_t> m_statusSeq{1};
 
     // called when the given node unreachable
     std::vector<std::function<void(std::string)>> m_unreachableHandlers;
@@ -69,5 +68,7 @@ class RouterManager
 
     std::map<std::string, uint32_t> m_node2Seq;
     mutable bcos::SharedMutex x_node2Seq;
+
+    std::atomic<uint32_t> m_statusSeq{1};
 };
 }  // namespace ppc::gateway
\ No newline at end of file
diff --git a/cpp/ppc-tars-protocol/ppc-tars-protocol/tars/NodeInfo.tars b/cpp/ppc-tars-protocol/ppc-tars-protocol/tars/NodeInfo.tars
index 9a0c67ec..06055197 100644
--- a/cpp/ppc-tars-protocol/ppc-tars-protocol/tars/NodeInfo.tars
+++ b/cpp/ppc-tars-protocol/ppc-tars-protocol/tars/NodeInfo.tars
@@ -11,5 +11,6 @@ module ppctars
         1 require string p2pNodeID;
         2 require string agency;
         3 optional vector<NodeInfo> nodeList;
+        4 optional int statusSeq;
     };
 };