Web16 iun. 2011 · A "connection refused" means that there is no application listening on the port it tries to connect to. The destination host indicates this with a corresponding ICMP message to the source. In order to run iperf you must have a server running on the machine which you iperf to. To do this run iperf -s on the server. Web11 aug. 2016 · 这个java程序主要需要注意group = InetAddress.getByName ("224.0.0.1");这句话,其中这个地址指的是你的多播地址,而不是你的ip地址,我是通过不同ip地址的主机加入统一多播地址224.0.0.1(如果你的程序报not a Multicast address,则需要看见面多播地址如何查询). 多播地址查询 ...
How to modify the TCP/IP maximum retransmission time-out
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Web13 apr. 2024 · 代码看 STM32F407+LAN8720+LWIP移植freemodbus TCP.zip. 他的代码是基于正点原子F407的板子开发的,如果是别的板子,需要修改引脚. 这篇文章也很值得借 … Web12 dec. 2013 · Nov 11, 2010 at 23:46. 109. Big difference between shutdown and close on a socket is the behavior when the socket is shared by other processes. A shutdown () affects all copies of the socket while close () affects only the file descriptor in … Web21 iul. 2024 · I am using FreeRTOS with lwIP. It is working properly. I am able to send from the ZCU104 (arm cortex m53) to a PC and vice-versa via Ethernet rgb8 images. I can send and receive at 1fps 640x480 images (921600 bytes) or at 30fp 2x2 images. However, when I try to send/receive 640x480 images at 30fps the issue comes. I can see on wireshark … education interface my classroom login