•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 the LCP keepalive messages never being sent and the subscriber session stays up indefinitely.
The RADIUS attribute 3GPP2-Always-On defined in a subscriber profile stored remotely on a RADIUS server can be used to enable Always-on for the subscriber. The attribute has two possible values, inactive and active. To enable Always-on, set the attribute to active.For more information, refer to AAA Interface Administration and Reference.
Step 1
Step 3 Save your configuration as described in the Saving Your Configuration chapter.Important: Commands used in the configuration examples in this section provide base functionality to the extent that the most common or likely commands and/or keyword options are presented. In many cases, other optional commands and/or keyword options are available. Refer to the Command Line Interface Reference for complete information regarding all commands.
context <context_name>subscriber name <subscriber_name>timeout idle <seconds>
• <context_name> must be the name of the destination context where the subscriber that you want to enable always-on is configured.
• Option: To configure the echo-retransmit-timeout setting to wait before sending a keepalive message to an always-on subscriber, in the Context Configuration Mode, enter the following command:ppp echo-retransmit-timeout <milliseconds>
• Option: To configure the echo-max-retransmissions setting to retransmit a Keepalive message to a subscriber, in the Context Configuration Mode use the following command:ppp echo-max-retransmissions <num_retries>
• Option: To configure the long duration timer for the subscriber, in the Subscriber Configuration Mode, enter the following command:
• Option: To configure the long duration timer detection to trigger long duration timer action for the subscriber, in the Subscriber Configuration Mode enter the following command:
• Option: To configure the long duration timer action for sessions exceeding the long duration timer timeout or the idle timeout durations for the subscriber, in the Subscriber Configuration Mode enter the following command:context <context_name>
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