RTT 还是没整明白

tcpip/link/loopback/loopback.go

@@ -2,10 +2,12 @@ package loopback
 
 import (
 	"fmt"
+	"math/rand"
 	"netstack/logger"
 	"netstack/tcpip"
 	"netstack/tcpip/buffer"
 	"netstack/tcpip/stack"
+	"time"
 )
 
 type endpoint struct {
@@ -47,6 +49,8 @@ func (e *endpoint) WritePacket(r *stack.Route, hdr buffer.Prependable, payload b
 	vv := buffer.NewVectorisedView(len(views[0])+payload.Size(), views)
 
 	// TODO 这里整点活 在特定的情况下丢掉数据报 模拟网络阻塞
+	rand.Seed(time.Now().Unix())
+	//time.Sleep(time.Duration(rand.Intn(50)+50) * time.Millisecond)
 
 	e.count++
 	if e.count == -1 { // 丢掉客户端写入的第二个包