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C6748用lwip1.3.2的udp通信，多台板卡通过交换机连接同一台PC，当只有3台以内板卡连接交换机时，每次都能顺畅连接通信。但是当板卡超过3台，就会出现连接不上或连上后断开的现象，请问可能是什么原因？
问题已解决，在协议栈初始化和绑定ip两个地方都加上了判断。保证协议栈和ip绑定成功即可。
