Cisco Cisco Packet Data Gateway (PDG)
GGSN Service Configuration Mode Commands
▀ echo-interval
▄ Command Line Interface Reference, StarOS Release 18
5228
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
Mode
Exec > Global Configuration > Context Configuration > GGSN Service Configuration
configure > context context_name > ggsn-service service_name
Entering the above command sequence results in the following prompt:
[context_name]host_name(config-ggsn-service)#
Syntax
echo-interval seconds [ dynamic [ smooth-factor multiplier ] ]
{ default | no } echo-interval
default
Configures the default value (60 seconds) for echo interval.
no
Disables the sending of GTPv1-C Echo packets.
seconds
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.
seconds
is measured in seconds and can be configured to an integer from 60 through 3600.
dynamic [ smooth-factor multiplier ]
Enables the dynamic echo timer for the GTP-U service.
smooth-factor multiplier
: Introduces a muliplier into the dynamic echo timer as an integer from 1
through 5. Default: 2
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