Cisco Cisco Packet Data Interworking Function (PDIF) Guía Para Resolver Problemas
Subscriber Configuration Mode Commands
▀ always-on
▄ Cisco ASR 5000 Series Command Line Interface Reference
OL-22947-02
always-on
Once the idle timeout limit is reached, keep the current subscriber session connected as long as the subscriber is
reachable.
reachable.
Caution:
When always-on is enabled, the subscriber must have an idle time-out period configured (default is 0,
no time-out). Failure to configure an idle time-out results in a subscriber session that is indefinite in length.
Two timers and a counter are associated with this feature. Refer to the
command in this chapter and the
and
commands.
Default: Disabled.
Product
PDSN, ASN GW
Privilege
Security Administrator, Administrator
Syntax
Disables
. The user is disconnected after the idle time expires.
Usage
If this parameter is enabled for a subscriber, when the idle time-out limit is reached the subscribers IP/PPP
session remains connected as long as the subscriber is reachable. This is true even if the airlink between the
mobile device and the RN (Radio Node) is moved from active to dormant (inactive) status. When the idle
timeout limit is reached, the PDSN determines availability using LCP keepalive messages. A response to
these messages indicates that the ―always-on‖ status should be maintained. Failure to respond to a
predetermined number of LCP keepalive messages causes the PDSN to tear-down (disconnect) the subscriber
session.
session remains connected as long as the subscriber is reachable. This is true even if the airlink between the
mobile device and the RN (Radio Node) is moved from active to dormant (inactive) status. When the idle
timeout limit is reached, the PDSN determines availability using LCP keepalive messages. A response to
these messages indicates that the ―always-on‖ status should be maintained. Failure to respond to a
predetermined number of LCP keepalive messages causes the PDSN to tear-down (disconnect) the subscriber
session.
Example
Enable always on for the current subscriber by entering the following command:
Enable always on for the current subscriber by entering the following command: