Руководство По Устранению Ошибки для Cisco Cisco Packet Data Gateway (PDG)
GGSN Service Configuration Mode Commands
echo-interval ▀
Cisco ASR 5000 Series Command Line Interface Reference ▄
OL-22948-01
echo-interval
Configures the rate at which GPRS Tunneling Protocol (GTP) v1-C Echo packets are sent from the GGSN service to the
SGSN.
SGSN.
Product
GGSN
Privilege
Security Administrator, Administrator
Syntax
Disables the sending of GTPv1-C Echo packets.
Default: 60
Specifies the frequency at which the GGSN service sends GTPv1-C Echo packets to the SGSN(s) it is
configured to communicate with.
Specifies the frequency at which the GGSN service sends GTPv1-C Echo packets to the SGSN(s) it is
configured to communicate with.
is measured in seconds and can be configured to any integer value between 60 and 3600.
Usage
Use this command to adjust the rate at which the GGSN sends these packets. GTPv1-C Echo packets are used
to detect whether SGSNs that the GGSN service is communicating with, has become unresponsive or has
rebooted.
The system initiates this protocol for each of the following scenarios:
to detect whether SGSNs that the GGSN service is communicating with, has become unresponsive or has
rebooted.
The system initiates this protocol for each of the following scenarios:
Upon system boot
Upon the configuration of a new SGSN on the system using the
command as
described in this chapter
Upon the execution of the path failure detection policy as described in
command of
this chapter
The echo-interval command is used in conjunction with the
and
commands as described in this chapter.
In addition to receiving an echo response for this echo protocol, if GGSN receives a Node Alive Request
message or a Echo Request message from a presumed dead SGSN, it will immediately assume the SGSN is
active again.
If the GGSN discovers that an SGSN has become unresponsive, it will terminate all PDP contexts that had
been established with the SGSN.
message or a Echo Request message from a presumed dead SGSN, it will immediately assume the SGSN is
active again.
If the GGSN discovers that an SGSN has become unresponsive, it will terminate all PDP contexts that had
been established with the SGSN.
Example
The following command configures the GGSN service to send GTP Echo packets every 120 seconds:
The following command configures the GGSN service to send GTP Echo packets every 120 seconds: