C613-50631-01 Rev A Command Reference for IE340 Series 901
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
IP ADDRESSING AND PROTOCOL COMMANDS
IP
TCP SYNACK-RETRIES
ip tcp synack-retries
Overview Use this command to specify how many times the switch will retry sending a SYN
ACK for a TCP connection for which it has received a SYN but not an ACK. Such
connections are called half-open TCP connections. This command allows you to
influence how long half-open TCP connections take to time out.
Use the no variant of this command to return to the default setting of 5 retries.
Syntax
ip tcp synack-retries <0-255>
no ip tcp synack-retries
Default 5 retries
Mode Global Configuration
Usage notes The following table shows the approximate correlation between the number of
retries and the time half-open TCP connections take to time out.
Example To retry twice, which leads to a timeout of approximately 7 seconds, use the
commands:
awplus# configure terminal
awplus(config)# ip tcp synack-retries 2
Related
commands
show running-config
Command
changes
Version 5.4.7-0.2: command added
Parameter Description
<0-255> Number of times to retry sending the SYN ACK
Number of retries Approximate lower bound for the timeout
0 retries 1 second
1 retry 3 seconds
2 retries 7 seconds
3 retries 15 seconds
4 retries 31 seconds
5 retries 63 seconds
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