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tcp: Make retransmission timeout (RTO) configurable

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yuanjm
2020-04-15 10:26:04 +08:00
committed by Erik Ekman
parent 876517ea3e
commit 239918ccc1
2 changed files with 13 additions and 2 deletions
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9
src/include/lwip/opt.h
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@@ -1337,6 +1337,15 @@
#define TCP_CALCULATE_EFF_SEND_MSS 1
#endif
/**
* LWIP_TCP_RTO_TIME: Initial TCP retransmission timeout (ms).
* This defaults to 3 seconds as traditionally defined in the TCP protocol.
* For improving timely recovery on faster networks, this value could
* be lowered down to 1 second (RFC 6298)
*/
#if !defined LWIP_TCP_RTO_TIME || defined __DOXYGEN__
#define LWIP_TCP_RTO_TIME 3000
#endif
/**
* TCP_SND_BUF: TCP sender buffer space (bytes).