Espressif ESP32-S2 Programming Manual page 1180

Chapter 2. API Reference
• 8
TCP Contains:
• CONFIG_LWIP_TCP_WND_DEFAULT
• CONFIG_LWIP_TCP_SND_BUF_DEFAULT
• CONFIG_LWIP_TCP_RECVMBOX_SIZE
• CONFIG_LWIP_TCP_RTO_TIME
• CONFIG_LWIP_TCP_KEEP_CONNECTION_WHEN_IP_CHANGES
• CONFIG_LWIP_MAX_ACTIVE_TCP
• CONFIG_LWIP_MAX_LISTENING_TCP
• CONFIG_LWIP_TCP_MAXRTX
• CONFIG_LWIP_TCP_SYNMAXRTX
• CONFIG_LWIP_TCP_MSL
• CONFIG_LWIP_TCP_MSS
• CONFIG_LWIP_TCP_OVERSIZE
• CONFIG_LWIP_TCP_QUEUE_OOSEQ
• CONFIG_LWIP_TCP_SACK_OUT
• CONFIG_LWIP_WND_SCALE
• CONFIG_LWIP_TCP_HIGH_SPEED_RETRANSMISSION
• CONFIG_LWIP_TCP_TMR_INTERVAL
CONFIG_LWIP_MAX_ACTIVE_TCP
Maximum active TCP Connections
Found in: Component config
The maximum number of simultaneously active TCP connections. The practical maximum limit is
determined by available heap memory at runtime.
Changing this value by itself does not substantially change the memory usage of LWIP, except for pre-
venting new TCP connections after the limit is reached.
Range:
• from 1 to 1024
Default value:
• 16
CONFIG_LWIP_MAX_LISTENING_TCP
Maximum listening TCP Connections
Found in: Component config
The maximum number of simultaneously listening TCP connections. The practical maximum limit is
determined by available heap memory at runtime.
Changing this value by itself does not substantially change the memory usage of LWIP, except for pre-
venting new listening TCP connections after the limit is reached.
Range:
• from 1 to 1024
Default value:
• 16
CONFIG_LWIP_TCP_HIGH_SPEED_RETRANSMISSION
TCP high speed retransmissions
Found in: Component config
Espressif Systems
> LWIP > TCP
> LWIP > TCP
> LWIP > TCP
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