diff --git a/SRTHaishinKit/Sources/SRT/SRTConnection.swift b/SRTHaishinKit/Sources/SRT/SRTConnection.swift
index 6b4eb639c..48e455dfa 100644
--- a/SRTHaishinKit/Sources/SRT/SRTConnection.swift
+++ b/SRTHaishinKit/Sources/SRT/SRTConnection.swift
@@ -60,7 +60,7 @@ public actor SRTConnection: NetworkConnection {
                     do {
                         try await socket.open(addr, mode: mode, options: options)
                         self.uri = uri
-                        connected = await socket.status == SRTS_CONNECTED
+                        connected = await socket.status == .connected
                         continuation.resume()
                     } catch {
                         continuation.resume(throwing: error)
@@ -100,13 +100,13 @@ public actor SRTConnection: NetworkConnection {
         }
         await networkMonitor?.stopRunning()
         for client in clients {
-            await client.close()
+            await client.stopRunning()
         }
         clients.removeAll()
         for stream in streams {
             await stream.close()
         }
-        await socket?.close()
+        await socket?.stopRunning()
         connected = false
     }
 
diff --git a/SRTHaishinKit/Sources/SRT/SRTSocket.swift b/SRTHaishinKit/Sources/SRT/SRTSocket.swift
index f9ece37a4..4585b587b 100644
--- a/SRTHaishinKit/Sources/SRT/SRTSocket.swift
+++ b/SRTHaishinKit/Sources/SRT/SRTSocket.swift
@@ -11,6 +11,51 @@ final actor SRTSocket {
         case illegalState(message: String)
     }
 
+    enum Status: Int, CustomDebugStringConvertible {
+        case unknown
+        case `init`
+        case opened
+        case listening
+        case connecting
+        case connected
+        case broken
+        case closing
+        case closed
+        case nonexist
+
+        var debugDescription: String {
+            switch self {
+            case .unknown:
+                return "unknown"
+            case .`init`:
+                return "init"
+            case .opened:
+                return "opened"
+            case .listening:
+                return "listening"
+            case .connecting:
+                return "connecting"
+            case .connected:
+                return "connected"
+            case .broken:
+                return "broken"
+            case .closing:
+                return "closing"
+            case .closed:
+                return "closed"
+            case .nonexist:
+                return "nonexist"
+            }
+        }
+
+        init?(_ status: SRT_SOCKSTATUS) {
+            self.init(rawValue: Int(status.rawValue))
+            defer {
+                logger.trace(debugDescription)
+            }
+        }
+    }
+
     var inputs: AsyncStream<Data> {
         AsyncStream<Data> { continuation in
             // If Task.detached is not used, closing will result in a deadlock.
@@ -44,50 +89,25 @@ final actor SRTSocket {
     }
 
     var performanceData: SRTPerformanceData {
-        return .init(mon: perf)
+        .init(mon: perf)
     }
-    private(set) var mode: SRTMode = .caller
-    private(set) var perf: CBytePerfMon = .init()
-    private(set) var socket: SRTSOCKET = SRT_INVALID_SOCK
-    private(set) var status: SRT_SOCKSTATUS = SRTS_INIT {
-        didSet {
-            guard status != oldValue else {
-                return
-            }
-            switch status {
-            case SRTS_INIT: // 1
-                logger.trace("SRT Socket Init")
-            case SRTS_OPENED:
-                logger.info("SRT Socket opened")
-            case SRTS_LISTENING:
-                logger.trace("SRT Socket Listening")
-            case SRTS_CONNECTING:
-                logger.trace("SRT Socket Connecting")
-            case SRTS_CONNECTED:
-                logger.info("SRT Socket Connected")
-                didConnected()
-            case SRTS_BROKEN:
-                logger.warn("SRT Socket Broken")
-                close()
-            case SRTS_CLOSING:
-                logger.trace("SRT Socket Closing")
-            case SRTS_CLOSED:
-                logger.info("SRT Socket Closed")
-            case SRTS_NONEXIST:
-                logger.warn("SRT Socket Not Exist")
-            default:
-                break
-            }
-        }
+
+    var status: Status {
+        .init(srt_getsockstate(socket)) ?? .unknown
     }
 
-    private(set) var options: [SRTSocketOption: any Sendable] = [:]
+    private(set) var isRunning = false
+    private var perf: CBytePerfMon = .init()
+    private var socket: SRTSOCKET = SRT_INVALID_SOCK
+    private var options: [SRTSocketOption: any Sendable] = [:]
     private var outputs: AsyncStream<Data>.Continuation? {
         didSet {
             oldValue?.finish()
         }
     }
-    private var connected = false
+    private var connected: Bool {
+        status == .connected
+    }
     private var windowSizeC: Int32 = 1024 * 4
     private lazy var incomingBuffer: Data = .init(count: Int(windowSizeC))
 
@@ -102,20 +122,13 @@ final actor SRTSocket {
         if incomingBuffer.count < windowSizeC {
             incomingBuffer = .init(count: Int(windowSizeC))
         }
-        status = srt_getsockstate(socket)
-        switch status {
-        case SRTS_CONNECTED:
-            didConnected()
-        default:
-            break
-        }
+        await startRunning()
     }
 
     func open(_ addr: sockaddr_in, mode: SRTMode, options: [SRTSocketOption: any Sendable] = [:]) throws {
         guard socket == SRT_INVALID_SOCK else {
             return
         }
-        self.mode = mode
         // prepare socket
         socket = srt_create_socket()
         if socket == SRT_INVALID_SOCK {
@@ -150,18 +163,6 @@ final actor SRTSocket {
                 throw makeSocketError()
             }
         }
-        status = srt_getsockstate(socket)
-    }
-
-    func close() {
-        guard socket != SRT_INVALID_SOCK else {
-            return
-        }
-        srt_close(socket)
-        status = srt_getsockstate(socket)
-        socket = SRT_INVALID_SOCK
-        outputs = nil
-        connected = false
     }
 
     func send(_ data: Data) throws {
@@ -173,7 +174,7 @@ final actor SRTSocket {
         }
     }
 
-    func configure(_ binding: SRTSocketOption.Binding) -> Bool {
+    private func configure(_ binding: SRTSocketOption.Binding) -> Bool {
         let failures = SRTSocketOption.configure(socket, binding: binding, options: options)
         guard failures.isEmpty else {
             logger.error(failures)
@@ -189,24 +190,11 @@ final actor SRTSocket {
         return srt_bstats(socket, &perf, 1)
     }
 
-    private func didConnected() {
-        connected = true
-        let stream = AsyncStream<Data> { continuation in
-            self.outputs = continuation
-        }
-        Task {
-            for await data in stream where connected {
-                let result = sendmsg(data)
-                if result == -1 {
-                    close()
-                }
-            }
-        }
-    }
-
     private func makeSocketError() -> SRTError {
         let error_message = String(cString: srt_getlasterror_str())
-        logger.error(error_message)
+        defer {
+            logger.error(error_message)
+        }
         return .illegalState(message: error_message)
     }
 
@@ -236,6 +224,37 @@ final actor SRTSocket {
     }
 }
 
+extension SRTSocket: AsyncRunner {
+    // MARK: AsyncRunner
+    func startRunning() async {
+        guard !isRunning else {
+            return
+        }
+        let stream = AsyncStream<Data> { continuation in
+            self.outputs = continuation
+        }
+        Task {
+            for await data in stream {
+                let result = sendmsg(data)
+                if result == -1 {
+                    await stopRunning()
+                }
+            }
+        }
+        isRunning = true
+    }
+
+    func stopRunning() async {
+        guard isRunning else {
+            return
+        }
+        srt_close(socket)
+        socket = SRT_INVALID_SOCK
+        outputs = nil
+        isRunning = false
+    }
+}
+
 extension SRTSocket: NetworkTransportReporter {
     // MARK: NetworkTransportReporter
     func makeNetworkTransportReport() -> NetworkTransportReport {
@@ -243,8 +262,8 @@ extension SRTSocket: NetworkTransportReporter {
         let performanceData = self.performanceData
         return .init(
             queueBytesOut: Int(performanceData.byteSndBuf),
-            totalBytesIn: Int(performanceData.byteSentTotal),
-            totalBytesOut: Int(performanceData.byteRecvTotal)
+            totalBytesIn: Int(performanceData.byteRecvTotal),
+            totalBytesOut: Int(performanceData.byteSentTotal)
         )
     }