1 多客户端

:::info 服务端设置

1. max_idle_timeout调大，否则边连接、边断开
2. vpp检查ip4校验和
3. 抓包不能开，否则容易内存过大崩溃 :::

:::warning 客户端设置

1. connection后的回调中才能open stream，否则ip分配异常
2. 进程文件描述符需要调大
3. ifconfig等系统命令要在主线程中，否则在回调中顺序不确定，会异常断开 :::

   2 connection id生成

   cid.h :: QuicCidNewRandomDestination最终调用 linux 的/dev/urandom来生成随机数。 ```

   -2 RandomFd = open(“/dev/urandom”, O_RDONLY|O_CLOEXEC);

   -1 CxPlatRandom() at platform_posix.c

0 QuicCidNewRandomDestination () at /root/source/msquic/src/core/cid.h:258

1 QuicConnAlloc (Registration=Registration@entry=0x620190, Datagram=Datagram@entry=0x0) at /root/source/msquic/src/core/connection.c:240

2 0x00007ffff7932792 in MsQuicConnectionOpen (RegistrationHandle=0x620190, Handler=0x4045c4 , Context=0x61d5d0 , NewConnection=0x61d5f8 ) at /root/source/msquic/src/core/api.c:64

3 0x0000000000404a1e in RunClient (argc=argc@entry=4, argv=argv@entry=0x7fffffffdfd8) at /root/source/msquic/src/tools/sample/sample.c:1193

4 0x0000000000404d46 in main (argc=4, argv=0x7fffffffdfd8) at /root/source/msquic/src/tools/sample/sample.c:1304

```