Mult Port + TCP Calibration (SSH DEAD)

core/internal/wire/protocol.go

@@ -26,14 +26,25 @@ const (
 	StatusWait  byte = 3
 	StatusEOF   byte = 4
 
-	ProbeUpload    byte = 1
-	ProbeDownload  byte = 2
-	ProbeKeepalive byte = 3
-	ProbeBatch     byte = 4
+	ProbeUpload        byte = 1
+	ProbeDownload      byte = 2
+	ProbeKeepalive     byte = 3
+	ProbeBatch         byte = 4
+	ProbeIperfUpload   byte = 5
+	ProbeIperfDownload byte = 6
 )
 
 var ProbeMagic = [4]byte{'D', 'T', 'P', '2'}
 
+// ProbeBurstCount is deliberately fixed at one. Startup calibration measures
+// the safe record size of a single DragonTCP lane, not aggregate throughput.
+// Multiple outstanding calibration records can make a constrained carrier look
+// artificially better or worse and can produce a false ceiling. Confirmation
+// retries are performed sequentially on fresh connections by the client.
+func ProbeBurstCount(chunk int) int {
+	return 1
+}
+
 type SessionID [16]byte
 
 type Request struct {

core/internal/wire/protocol_test.go

@@ -103,3 +103,11 @@ func BenchmarkWriteRequest1MiB(b *testing.B) {
 		})
 	}
 }
+
+func TestProbeBurstCountSinglePoller(t *testing.T) {
+	for _, chunk := range []int{0, 1, 1024, 128 * 1024, 512 * 1024, 1024 * 1024} {
+		if got := ProbeBurstCount(chunk); got != 1 {
+			t.Fatalf("ProbeBurstCount(%d)=%d, want 1", chunk, got)
+		}
+	}
+}