Chapter 1 Ip Performance Configuration; Configuring Ip Performance; Configuring Tcp Attributes - H3C S9500 Series Operation Manual

Operation Manual – IP Performance
H3C S9500 Series Routing Switches

Chapter 1 IP Performance Configuration

When configuring IP performance, go to these sections for information you are
interested in:

Configuring IP Performance

Displaying and Maintaining IP Performance
Troubleshooting IP Performance
1.1 Configuring IP Performance
IP performance configuration includes:

Configuring TCP Attributes

Configuring the Switch Whether to Send a Time Exceeded ICMP Packet
1.1.1 Configuring TCP Attributes
TCP attributes include:
synwait timer: When sending the syn packets, TCP starts the synwait timer. If
response packets are not received before synwait timeout, the TCP connection is
terminated. The timeout of synwait timer ranges from 2 to 600 seconds and it is 75
seconds by default.
finwait timer: When the TCP connection state turns from FIN_WAIT_1 to
FIN_WAIT_2, finwait timer is started. If FIN packets are not received before finwait
timer timeout, the TCP connection is terminated. The timeout of finwait timer
ranges from 76 to 3600 seconds and it is 675 seconds by default.
The receiving/sending buffer size of the connection-oriented socket is in the range
from 1 to 32 KB and is 8 KB by default.
Perform the following configuration in system view to configure TCP attributes:
Configure timeout time for the synwait
timer in TCP
Restore the default timeout time of the
synwait timer
Configure timeout time for the
FIN_WAIT_2 timer in TCP
Restore the default timeout time of the
FIN_WAIT_2 timer
Configure the socket receiving/sending
buffer size of TCP
To do...
1-1
Chapter 1 IP Performance Configuration
Use the command...
tcp timer syn-timeout time-value
undo tcp timer syn-timeout
tcp timer fin-timeout time-value
undo tcp timer fin-timeout
tcp window window-size