GTPC Load Control
Profile Configuration Mode Commands
Load control enables
a GTP-C entity (for example, an S-GW/P-GW) to send its
load information to a GTP-C peer (e.g. an MME/SGSN, ePDG,
TWAN) to adaptively balance the session load across entities supporting
the same function (for example, an S-GW cluster) according to their
effective load. The load information reflects the operating status
of the resources of the GTP-C entity.
Mode
This chapter
describes the GTPC Load Control Profile Configuration Mode commands.
Exec > Global Configuration
> GTPC Load Control Profile Configuration
configure > gtpc-load-control-profile profile_name
Entering the above command
results in the following prompt:
[local]host_name(config-gtpc-load-control-profile)#
Important: Available commands
or keywords/variables vary based on platform type, product
version, and installed license(s).
end
Exits the current
configuration mode and returns to the Exec mode.
Privilege
Security Administrator,
Administrator
Syntax
Syntax Description
end
Usage Guidelines
Use this command to
return to the Exec mode.
exit
Exits the current
mode and returns to the parent configuration mode.
Privilege
Security Administrator,
Administrator
Syntax
Syntax Description
exit
Usage Guidelines
Use this command to
return to the parent configuration mode.
inclusion-frequency
Configures parameters
to determine the inclusion frequency of the Load Control Information
IE for a GTP-C Load Control Profile configuration.
Product
Important: GTP-C
Load Control Profile is a license-controlled feature. For more information,
contact your Cisco account or support representative.
P-GW
SAEGW
S-GW
Privilege
Administrator, Security
Administrator
Mode
Exec > Global Configuration
> GTPC Load Control Profile Configuration
configure > gtpc-load-control-profile profile_name
Entering the above command
results in the following prompt:
[local]host_name(config-gtpc-load-control-profile)#
Syntax
Syntax Description
inclusion-frequency { advertisement-interval interval_in_seconds | change-factor change_factor }
default inclusion-frequency { advertisement-interval | change-factor }
inclusion-frequency
Specifies that parameters
to determine the inclusion frequency of the Load Control Information
IE for a GTP-C Load Control Profile configuration will be configured.
The Load Control Information IE is a 3GPP-specific IE that is sent
to peers when a configured threshold is reached. This parameter
specifies how often the operator wants to send this information
to the peers.
advertisement-interval interval_in_seconds
Configures the advertisement-interval
for Load Control in seconds. Specifies how often load control information
should be sent to the peers. If configured to 0, the node will send
load control information in each and every outgoing message to the
peers.
interval_in_seconds must
be an integer from 0 to 3600.
Default: 300
change-factor change_factor
Configures the change
factor for Load Control. If the load control factor changes by the configured
factor, whether it is an increase or decrease, the load control
information should be sent to the peers. This information is only
sent to the peers when the load factor changes by the factor configured.
change_factor must
be an integer from 1 to 20.
Default: 5%
default
Returns configured
parameters to their default value.
Usage Guidelines
Use this command to
specify parameters to determine the inclusion frequency of the Load control
information IE for a GTP-C Load Control Profile configuration. This
IE reflects the current operating status of the network element
based on the configured weightage parameters.
The network element ensures that new/updated load control
information is propagated to the target receivers within an acceptable delay,
so that the purpose of the information (i.e., effective load balancing)
is achieved.
The weightage command
in GTP-C Load Control Profile Configuration Mode should also be
configured along with the inclusion-frequency setting.
If this setting is not
configured, the node will use the default setting.
The Load Control profile
must be associated with a P-GW, S-GW, or SAEGW service using one
of the following commands:
- P-GW: associate command
in P-GW Service Configuration Mode
- S-GW: associate command
in S-GW Service Configuration Mode
- SAEGW: associate commands
in both P-GW and S-GW Service Configuration modes
Examples
This example configures
the inclusion-frequency advertisement-interval to 120 seconds.inclusion-frequency advertisement-interval 120
load-control-handling
Enables or disables
the handling of GTP-C load control information provided to the MME and
S-GW.
Product
Important: GTP-C
Load Control Profile is a licensed-controlled feature. For more information,
contact your Cisco account or support representative.
P-GW
S-GW
SAEGW
Privilege
Administrator, Security
Administrator
Mode
Exec > Global Configuration
> GTPC Load Control Profile Configuration
configure > gtpc-load-control-profile profile_name
Entering the above command
results in the following prompt:
[local]host_name(config-gtpc-load-control-profile)#
Syntax
Syntax Description
[ no ] load-control-handling { home | visited }
[ default ] load-control-handling
no
Disables load-control-handling
for the specified option (home or visited).
default
Returns the load-control-handling
feature to its default behavior (enabled).
load-control-handling
Enables load control
handling for the specified option.
home
Enables load control
handling information for the home PLMN.
visited
Enables/disables
load control handling information for the visited PLMN.
Examples
Use this command to
enable/disable the handling of load control information
handling for the home or visited PLMN.
If no parameters are
specified, the system will use the default settings.
The Load Control Profile
must be associated with a P-GW, S-GW, or SAEGW service using one
of the following commands:
- P-GW: associate command
in P-GW Service Configuration Mode
- S-GW: associate command
in S-GW Service Configuration Mode
- SAEGW: associate commands
in both P-GW and S-GW Service Configuration modes
Examples
This command enables
load control handling for the home PLMN.load-control-handling home
load-control-publishing
Enables/disables
the publishing of GTP-C load control information.
Product
Important: GTP-C
Load Control Profile is a license-controlled feature. For more information,
contact your Cisco account or support representative.
P-GW
S-GW
SAEGW
Privilege
Adminstrator, Security
Administrator
Mode
Exec > Global Configuration
> GTPC Load Control Profile Configuration
configure > gtpc-load-control-profile profile_name
Entering the above command
results in the following prompt:
[local]host_name(config-gtpc-load-control-profile)#
Syntax
Syntax Description
[ no ] load-control-publishing { home | visited }
default load-control-publishing
no
Disables load control
publishing for the specified option.
default
Returns load control
publishing to its default behavior (enabled).
load-control-publishing
Enables the publishing
of load control information towards the home or visited PLMN.
home
Enables load control
publishing information for the home PLMN.
visited
Enables load control
publishing information for the visited PLMN.
Usage Guidelines
Use this command to
enable/disable load control information publishing for
the home or visited PLMN.
The Load Control Profile
must be associated with a P-GW, S-GW, or SAEGW service using one
of the following commands:
- P-GW: associate command
in P-GW Service Configuration Mode
- S-GW: associate command
in S-GW Service Configuration Mode
- SAEGW: associate commands
in both P-GW and S-GW Service Configuration modes
Examples
This command enables
the publishing of load control information towards the visited peers.load-control-publishing visited
threshold
Configures the minimum
threshold value above which PGW-provided GTP-C load control information
should be utilized for calculating the PGW effective weight during
initial node selection.
Product
Important: GTP-C
Load Control Profile is a license-controlled feature. For more information,
contact your Cisco account or support representative.
P-GW
S-GW
SAEGW
Privilege
Administrator, Security
Administrator
Mode
Exec > Global Configuration
> GTPC Load Control Profile Configuration
configure > gtpc-load-control-profile profile_name
Entering the above command
results in the following prompt:
[local]host_name(config-gtpc-load-control-profile)#
Syntax
Syntax Description
threshold percentage
[ no ] threshold
threshold
Enables the configuration
of the minimum threshold value above which PGW-provided load control
information should be utilized for calculating the P-GW effective
weight during initial node selection.
percentage
Enter the threshold
setting as a percentage of 100%. The entry must be an integer
from 1 to 100. The default setting is 50%.
no
Disables the configured
threshold setting.
Usage Guidelines
Use this command to
configure the minimum threshold value above which PGW-provided load
control information should be utilized for calculating the P-GW
effective weight during initial node selection.
The Load Control Profile
must be associated with a P-GW, S-GW, or SAEGW service using one
of the following commands:
- P-GW: associate command
in P-GW Service Configuration Mode
- S-GW: associate command
in S-GW Service Configuration Mode
- SAEGW: associate commands
in both P-GW and S-GW Service Configuration modes
Examples
This command sets
the threshold to 60%.threshold 60
weightage
Configures weightage
for various GTP-C load control profile parameters.
Product
Important: GTP-C
Load Control Profile is a license-controlled feature. For more information,
contact your Cisco account or support representative.
P-GW
SAEGW
S-GW
Privilege
Administrator, Security
Administrator
Mode
Exec > Global Configuration
> GTPC Load Control Profile Configuration
configure > gtpc-load-control-profile profile_name
Entering the above command
results in the following prompt:
[local]host_name(config-gtpc-load-control-profile)#
Syntax
Syntax Description
weightage system-cpu-utilization percentage system-memory-utilization percentage license-session-utilization percentage
default weightage
weightage
Specifies that system
memory, system CPU, and license session utilization parameters will
be configured.
Important: All parameters must be
specified. The total of all three parameter settings should total,
but not exceed, 100%.
system-cpu-utilization percentage
Specifies system CPU
utilization weightage as a percentage of 100.
percentage must
be an integer from 0 to 100.
Default: 40%
system-memory-utilization percentage
Specifies system memory
utilization weightage as a percentage of 100.
percentage must
be an integer from 0 to 100.
Default: 30%
license-session-utilization percentage
Specifies the license
session utilization as a percentage of 100.
percentage must
be an integer from 0 to 100.
Default: 30%
default weightage
Returns all parameters
to their default settings.
Usage Guidelines
Use this command to
set weightage percentages for system CPU, memory, and license session
utilization as part of a GTP-C Load Control Profile configuration.
These settings constitute the basic Load Control Profile for this
network element. These parameters allow the P-GW/S-GW/SAEGW
to send its load information to a peer GTP control plane node which
the receiving GTP control plane peer node uses to augment existing
GW selection procedure for the P-GW and S-GW. Load Information reflects
the operating status of the resources of the originating GTP control
plane node.
If no parameters are
specified, the system will use the default settings.
Operators should also
configure the inclusion-frequency command
in GTP-C Load Control Profile Configuration mode to specify parameters
to determine the inclusion frequency of the Load Control Information
IE sent to peers for the GTP-C Load Control Profile configuration.
The Load Control Profile
must be associated with a P-GW, S-GW, or SAEGW service using one
of the following commands:
- P-GW: associate command
in P-GW Service Configuration Mode
- S-GW: associate command
in S-GW Service Configuration Mode
- SAEGW: associate commands
in both P-GW and S-GW Service Configuration modes
Examples
The following example
configures system-cpu-utilization at 30%, system-memory utilization
at 40%, and license-utilization at 30%.weightage system-cpu-utilization 30 system-memory-utilization 40 license-session-utilization 30
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