espressif/esp-idf
1
0
Fork 1
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-01 03:34:32 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'bugfix/fix_TCP_retransmission_interval_v4.2' into 'release/v4.2'

Browse Source 
fix TCP retransmission interval (backport v4.2)

See merge request espressif/esp-idf!10953
This commit is contained in:
Jiang Jiang Jian
2020-10-26 11:25:15 +08:00
parent d85d336c86 84e5aef540
commit 8d213150c5
1 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
components/lwip/Kconfig
View File

@@ -353,6 +353,13 @@ menu "LWIP"
change the memory usage of LWIP, except for preventing
new listening TCP connections after the limit is reached.
config LWIP_TCP_HIGH_SPEED_RETRANSMISSION
bool "TCP high speed retransmissions"
default y
help
Speed up the TCP retransmission interval. If disabled,
it is recommended to change the number of SYN retransmissions to 6,
TCP timer interval to 250, and TCP rto time to 3000.
config LWIP_TCP_MAXRTX
int "Maximum number of retransmissions of data segments"
@@ -363,7 +370,8 @@ menu "LWIP"
config LWIP_TCP_SYNMAXRTX
int "Maximum number of retransmissions of SYN segments"
default 6
default 6 if !LWIP_TCP_HIGH_SPEED_RETRANSMISSION
default 12 if LWIP_TCP_HIGH_SPEED_RETRANSMISSION
range 3 12
help
Set maximum number of retransmissions of SYN segments.
@@ -381,7 +389,8 @@ menu "LWIP"
config LWIP_TCP_TMR_INTERVAL
int "TCP timer interval(ms)"
default 250
default 250 if !LWIP_TCP_HIGH_SPEED_RETRANSMISSION
default 125 if LWIP_TCP_HIGH_SPEED_RETRANSMISSION
help
Set TCP timer interval in milliseconds.
@@ -512,7 +521,8 @@ menu "LWIP"
config LWIP_TCP_RTO_TIME
int "Default TCP rto time"
default 3000
default 3000 if !LWIP_TCP_HIGH_SPEED_RETRANSMISSION
default 1500 if LWIP_TCP_HIGH_SPEED_RETRANSMISSION
help
Set default TCP rto time for a reasonable initial rto.
In bad network environment, recommend set value of rto time to 1500.