tcp state
Use tcp state to set the maximum number of TCP connections in a state.
Use undo tcp state to restore the default.
Syntax
tcp state { closing | established | fin-wait-1 | fin-wait-2 | last-ack } connection-limit number
undo tcp state { closing | established | fin-wait-1 | fin-wait-2 | last-ack } connection-limit
Default
The maximum number of TCP connections in each state (CLOSING, ESTABLISHED, FIN_WAIT_1, FIN_WAIT_2, and LAST_ACK) is 50.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
closing: Specifies the CLOSING state.
established: Specifies the ESTABLISHED state.
fin-wait-1: Specifies the FIN_WAIT_1 state.
fin-wait-2: Specifies the FIN_WAIT_2 state.
last-ack: Specifies the LAST_ACK state.
connection-limit number: Specifies the maximum number of TCP connections, in the range of 0 to 500. The value of 0 represents that the device does not accelerate the aging of the TCP connections in a state.
Usage guidelines
This command takes effect after you enable Naptha attack prevention. If the number of TCP connections in a state exceeds the limit, the device will accelerate the aging of the TCP connections in the state.
Examples
# Set the maximum number of TCP connections in the ESTABLISHED state to 100.
<Sysname> system-view [Sysname] tcp state established connection-limit 100
Related commands
tcp anti-naptha enable
tcp check-state interval