why pub socket does not reconnect

[huogan]

Pub socket and Sub socket lose connection at the same time, but SUB will reconnect, pub does not reconnect,
Sub socket can receive messages, but others cannot receive the messages my Pub socket send.

			ZContext context = new ZContext();

			ZMQ.Socket publisher = this.context.createSocket(SocketType.PUB);

			publisher.setTCPKeepAlive(1);
			publisher.setTCPKeepAliveIdle(20);
			publisher.setTCPKeepAliveInterval(10);
			publisher.setHeartbeatIvl(2*1000);
			publisher.setHeartbeatTimeout(5*1000);
			publisher.setHeartbeatTtl(10*1000);
			publisher.setReconnectIVLMax(2000);
			publisher.setReconnectIVL(3*1000);
			publisher.setReconnectIVLMax(10*1000);

			publisher.connect(this.pubURL);

[huogan]

I used tcpdump to capture packets found that the socket connection was norma, but the message is not sent, and no data is found in the buffer queried by netstat on Linux