Cisco Cisco Packet Data Gateway (PDG)
ACS Rulebase Configuration Mode Commands
▀ tcp 2msl-timeout
▄ Command Line Interface Reference, StarOS Release 17
762
tcp 2msl-timeout
This command allows you to configure how long to retain the TCP flow after the FIN has been acknowledged.
Product
ACS
Privilege
Security Administrator, Administrator
Mode
Exec > ACS Configuration > Rulebase Configuration
active-charging service service_name > rulebase rulebase_name
Entering the above command sequence results in the following prompt:
[local]host_name(config-rule-base)#
Syntax
tcp 2msl-timeout 2msl_timeout [ port-reuse ]
{ default | no } tcp 2msl-timeout
default
Configures this command with its default setting.
Default: 2 seconds
Default: 2 seconds
no
Disables the timeout and sets the system to delete the flow immediately upon seeing the FIN acknowledged.
tcp 2msl-timeout 2msl_timeout
Specifies the duration to keep the TCP flow.
2msl_timeout
specifies the timeout duration, in seconds, and must be an integer from 1 through 20.
port-reuse
Allows the source port reuse to reopen the TCP flow in 2msl timeout.
Usage
Use this command to configures how long to retain the TCP flow after the FIN has been acknowledged.
Acknowledgment to the FIN is not guaranteed to be received by the destination, then the FIN could be resent
and re-acknowledged. In this scenario, it is desirable to still have the flow, so that the re-sends do not create a
new flow.
Acknowledgment to the FIN is not guaranteed to be received by the destination, then the FIN could be resent
and re-acknowledged. In this scenario, it is desirable to still have the flow, so that the re-sends do not create a
new flow.
Example
The following command sets the timeout to
4
seconds:
tcp 2msl-timeout 4 port-reuse