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BigIP F5 LTM - Administrative States

Via the use of administrative states, the administrator has the power to gracefully select a pool members state.

States

There are 3 administrative states:

Enabled - This is the default state. All connection types are passed to the pool member and the monitor continues to determine the state of the member.
Disabled - Only new connections from returning clients within the defined timeout period (via the persistence record) are allowed.
Forced Offline - This state is administratively set. No additional connections are allowed and monitor checks are not performed.

Note : The states Forced Offline and Disabled only differ when persistence is configured.

Changing the State

The state can be configure via :

  1. Virtual Server - Go to the 'Virtual Server | General Properties | State' then select either Enable/Disabled.
  2. Pool Member - Go to 'Local traffic | Pools | Members | Select member' and then select either Enable/Disabled/Forced Offline.

When an administrative state is :

Disabled the monitor status icon is black but the monitor status icon shape is retrained.
Forced Offline the icon consists of a black diamond.

Note : To distinguish between Disabled and Forced Offline hover the mouse over the status icon.


Tags: BIG-IP F5

About the Author

RDonato

R Donato

Rick Donato is the Founder and Chief Editor of Fir3net.com. He currently works as a Principal Network Security Engineer and has a keen interest in automation and the cloud.

You can find Rick on Twitter @f3lix001