Cisco Cisco Packet Data Gateway (PDG) 管理员指南
Always-on
Configuring Always-on ▀
Cisco ASR 5x00 Home Agent Administration Guide ▄
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Configuring Always-on
To configure Always-on for a subscriber:
Step 1
Configure Always-on as described in the
Step 2
Verify your configuration as described in the
Step 3
Save your configuration to flash memory, an external memory device, and/or a network location using the Exec mode
command
command
save configuration
. For additional information on how to verify and save configuration files, refer to the
System Administration Guide and the Command Line Interface Reference.
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.
other optional commands and/or keyword options are available. Refer to the Command Line Interface
Reference for complete information regarding all commands.
Configuring Always-on
Use the following example to configure Always-on:
configure
context <context_name>
subscriber name <subscriber_name>
timeout idle <seconds>
always-on
end
Notes:
<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>
The optional echo-retransmit-timeout and echo-max-retransmissions settings apply to all subscriber sessions
within the current context that have always-on enabled.
Option: To configure the long duration timer for the subscriber, in the Subscriber Configuration Mode, enter the
following command: