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Clearing LSN Sessions

May 2, 2023

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You can remove any unwanted or inefficient LSN sessions from the NetScaler 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 NetScaler 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 NetScaler

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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Clearing LSN Sessions

May 2, 2023

Contributed by:

May 2, 2023

Contributed by:

Clearing LSN Sessions

To clear all LSN sessions by using the command line interface

To clear selective LSN sessions by using the command line interface

Example

To clear all LSN sessions by using the configuration utility

Parameter Descriptions (of commands listed in the CLI procedure)

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