Clearing LSN Sessions
You can remove any unwanted or inefficient LSN sessions from the Citrix ADC appliance. The appliance immediately releases resources (such as NAT IP address, port, and memory) allocated for these sessions, making the resources available for new sessions. The appliance also drops all the subsequent packets related to these removed sessions. You can remove all or selected LSN sessions from the Citrix ADC appliance.
To clear all LSN sessions by using the command line interface
At the command prompt, type:
flush lsn session
show lsn session
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To clear selective LSN sessions by using the command line interface
At the command prompt, type:
flush lsn session [-clientname <string>] [-network <ip_addr> [-netmask <netmask>] [-td <positive_integer>]] [-natIP <ip_addr> [-natPort <port>]]
show lsn session
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Example
Clear all LSN sessions existing on a Citrix ADC
flush lsn session
Done
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Clear all LSN sessions related to LSN client entity LSN-CLIENT-1
flush lsn session -clientname LSN-CLIENT-1
Done
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Clear all LSN sessions related to a subscriber network (192.0.2.0) of LSN client entity LSN-CLIENT-2 belonging to traffic domain 100
flush lsn session -clientname LSN-CLIENT-2 –network 192.0.2.0 –netmask 255.255.255.0 –td 100
Done
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To clear all LSN sessions by using the configuration utility
Navigate to System > Large Scale NAT > Sessions, and click Flush Sessions.
Parameter Descriptions (of commands listed in the CLI procedure)
-
flush lsn session
-
clientname
Name of the LSN Client entity. Maximum Length: 127
-
network
IP address or network address of subscriber(s).
-
netmask
Subnet mask for the IP address specified by the network parameter.
Default value: 255.255.255.255
-
td
Traffic domain ID of the LSN client entity.
Default value: 0
Minimum value: 0
Maximum value: 4094
-
natIP
Mapped NAT IP address used in LSN sessions.
-
natPort
Mapped NAT port used in the LSN sessions.
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