diff --git a/ClientTester/EchoClientTester/EchoDummyService/DummyClientService.cs b/ClientTester/EchoClientTester/EchoDummyService/DummyClientService.cs
index f35d8c1..d2c3377 100644
--- a/ClientTester/EchoClientTester/EchoDummyService/DummyClientService.cs
+++ b/ClientTester/EchoClientTester/EchoDummyService/DummyClientService.cs
@@ -8,6 +8,19 @@ public class DummyClientService
     private readonly List<DummyClients> clients;
     private readonly int sendInterval;
 
+    // 유닛 테스트용 (n패킷 시간체크)
+    public bool IsTest
+    {
+        get;
+        set;
+    } = false;
+
+    public int TestCount
+    {
+        get;
+        set;
+    } = 100000;
+
     // 모든거 강종
     public event Action? OnAllDisconnected;
 
@@ -21,6 +34,16 @@ public class DummyClientService
 
     public async Task RunAsync(CancellationToken ct)
     {
+        if (IsTest)
+        {
+            foreach (DummyClients c in clients)
+            {
+                c.TestCount = TestCount;
+            }
+
+            Log.Information("[TEST] 유닛 테스트 모드: 클라이언트당 {Count}개 수신 시 자동 종료", TestCount);
+        }
+
         await Task.WhenAll(
             PollLoopAsync(ct),
             SendLoopAsync(ct)
@@ -103,6 +126,7 @@ public class DummyClientService
     {
         int totalSent = 0, totalRecv = 0;
         int connected = 0;
+        int rttClientCount = 0;
 
         Log.Information("───────────── Performance Report ─────────────");
 
@@ -120,14 +144,18 @@ public class DummyClientService
 
             totalSent += c.SentCount;
             totalRecv += c.ReceivedCount;
-            totalAvgRtt += c.AvgRttMs;
+            if (c.RttCount > 0)
+            {
+                totalAvgRtt += c.AvgRttMs;
+                rttClientCount++;
+            }
             if (c.peer != null)
             {
                 connected++;
             }
         }
 
-        double avgRtt = connected > 0 ? totalAvgRtt / connected : 0;
+        double avgRtt = rttClientCount > 0 ? totalAvgRtt / rttClientCount : 0;
 
         Log.Information("────────────────────────────────────────────");
         Log.Information(
diff --git a/ClientTester/EchoClientTester/EchoDummyService/DummyClients.cs b/ClientTester/EchoClientTester/EchoDummyService/DummyClients.cs
index 40ee3cc..9ff2203 100644
--- a/ClientTester/EchoClientTester/EchoDummyService/DummyClients.cs
+++ b/ClientTester/EchoClientTester/EchoDummyService/DummyClients.cs
@@ -19,6 +19,13 @@ public class DummyClients
     private ConcurrentDictionary<int, long> pendingPings = new();
     private int seqNumber;
 
+    // 유닛 테스트용 (0 = 제한 없음)
+    public int TestCount
+    {
+        get;
+        set;
+    } = 0;
+
     // 통계
     public int SentCount
     {
@@ -81,6 +88,12 @@ public class DummyClients
             }
 
             ReceivedCount++;
+
+            if (TestCount > 0 && ReceivedCount >= TestCount)
+            {
+                peer.Disconnect();
+            }
+
             reader.Recycle();
         };
 
diff --git a/ClientTester/EchoClientTester/Program.cs b/ClientTester/EchoClientTester/Program.cs
index e096a27..3e3f8e2 100644
--- a/ClientTester/EchoClientTester/Program.cs
+++ b/ClientTester/EchoClientTester/Program.cs
@@ -35,6 +35,8 @@ class EcoClientTester
             await cts.CancelAsync();
         };
 
+        // service.IsTest = true;
+        // service.TestCount = 100;
         await service.RunAsync(cts.Token);
 
         service.PrintStats();