Cisco Cisco Packet Data Gateway (PDG) Guida Alla Risoluzione Dei Problemi
Context Configuration Mode Commands
▀ gtpp echo-interval
▄ Cisco ASR 5000 Series Command Line Interface Reference
OL-22948-01
gtpp echo-interval
Configures the frequency at which the system sends GTPP echo packets to configured CGFs.
Product
GGSN, SGSN
Privilege
Security Administrator, Administrator
Syntax
Disables the use of the echo protocol except for the scenarios described in the Usage section for this
command.
command.
Default: 60
Specifies the time interval for sending GTPP echo packets.
Specifies the time interval for sending GTPP echo packets.
is measured in seconds and can be configured to any integer value from 60 to 2147483647.
Usage
The GTPP echo protocol is used by the system to ensure that it can communicate with configured CGFs. The
system initiates this protocol for each of the following scenarios:
system initiates this protocol for each of the following scenarios:
Upon system boot
Upon the configuration of a new CGF server on the system using the gtpp server command as
described in this chapter
Upon the execution of the gtpp test accounting command as described in the Exec Mode Commands
chapter of this reference
Upon the execution of the gtpp sequence-numbers private-extensions command as described in this
chapter
The echo-interval command is used in conjunction with the gtpp max-retries and gtpp timeout commands as
described in this chapter.
In addition to receiving an echo response for this echo protocol, if we receive a GTPP Node Alive Request
message or a GTPP Echo Request message from a presumed dead CGF server, we will immediately assume
the server is active again.
The alive/dead status of the CGFs is used by the AAA Managers to affect the sending of CDRs to the CGFs.
If all CGFs are dead, the AAA Managers will still send CDRs, (refer to the
described in this chapter.
In addition to receiving an echo response for this echo protocol, if we receive a GTPP Node Alive Request
message or a GTPP Echo Request message from a presumed dead CGF server, we will immediately assume
the server is active again.
The alive/dead status of the CGFs is used by the AAA Managers to affect the sending of CDRs to the CGFs.
If all CGFs are dead, the AAA Managers will still send CDRs, (refer to the
command),
albeit at a slower rate than if a CGF were alive. Also, AAA Managers independently determine if CGFs are
alive/dead.
alive/dead.
Example