# IPSP Configuration Mode Commands

The IPSP Configuration Mode is used to configure properties for the IP Pool Sharing Protocol (IPSP). System-based HA services use IPSP during an offline-software upgrade to avoid the assignment of duplicate IP addresses to sessions while allowing them to maintain the same address, and to preserve network capacity

IMPORTANT:

For information on configuring and using IPSP refer to the System AdministrationGuide.

IMPORTANT:

The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).
dead-interval

Configures the retry time to connect to the remote system for the IP Pool Sharing Protocol.
Platform:

ASR 5000

ASR 5500
Product:

PDSN, HA
Privilege:

Security Administrator, Administrator
Syntax

    dead-interval
    seconds[ no | default ] dead-interval

no

Disables the dead interval. On loss of connectivity to the remote system, no retries are attempted and the remote system is marked dead immediately on failure.
default

Resets the dead interval to the default of 3600 seconds.
seconds

Default: 3600 seconds

The amount of time in seconds to wait before retrying the remote system. seconds must be an integer from 25 through 259200.
Usage:

Use this command to set the amount of time to wait before retrying to connect with the remote system for the IP pool sharing protocol.
Example:

Use the following command to set the interval to 180 seconds (3 minutes):

dead-interval 180
end

Exits the current configuration mode and returns to the Exec mode.
Product:

All
Privilege:

Security Administrator, Administrator
Syntax

    end

Usage:

Use this command to return to the Exec mode.
exit

Exits the current mode and returns to the parent configuration mode.
Product:

All
Privilege:

Security Administrator, Administrator
Syntax

    exit

Usage:

Use this command to return to the parent configuration mode.
reserved-free-percentage

This command is used to set the amount of free addresses reserved for use on the primary HA.
Platform:

ASR 5000

ASR 5500
Product:

PDSN, HA
Privilege:

Security Administrator, Administrator
Syntax

    reserved-free-percentage valuedefault reserved-free-percentage

value

Default: 100

value specifies the percentage of free addresses reserved for the use on the primary HA for IP pool sharing during upgrade. It must be an integer from 0 through 100.
Usage:

This command is used with pool-sharing-protocol active mode on the primary HA. Before using this command, pool-sharing-protocol in the Ethernet Interface Configuration Mode must be configured.

For more information, refer to the Ethernet Interface Configuration Mode Commands chapter in this guide.
Example:
To reserve 40 percent of free addresses in primary HA for IP pool sharing, enter the following command:

    reserved-free-percentage 40