Radio Congestion Policy Configuration Mode Commands

The Radio Congestion Policy Configuration Mode provides the commands to configure the parameters to interpret the congestion indications per TCP flow, the congestion sampling time and reporting frequency.


Important

In release 20.0, MVG is not supported. Commands in this configuration mode must not be used in release 20.0. For more information, contact your Cisco account representative.

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Important

The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).

congestion-level

Configures the congestion values for each congestion level — None, Low, Medium, High, and Extreme.

Product

All

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

congestion-level low low_value medium medium_value high high_value extreme extreme_value 
default congestion-level

default

Configures this command with its default setting.

low low_value

Specifies the congestion range for low congestion.

low_value must be a number from 1 to 100.

Default: 20

medium medium_value

Specifies the congestion range for medium congestion.

medium_value must be a number from 1 to 100.

Default: 40

high high_value

Specifies the congestion range for high congestion.

high_value must be a number from 1 to 100.

Default: 60

extreme extreme_value

Specifies the congestion range for extreme congestion.

extreme_value must be a number from 1 to 100.

Default: 80

Usage Guidelines

Use this command to configure the congestion values for each congestion level — None, Low, Medium, High, and Extreme. The congestion level values will be reported to the CAE in order to select a video optimization mechanism suitable for subscriber-side network congestion condition. The congestion level range for NO congestion must be less than 10.

Examples

The following command configures the values — 10 , 20 , 30 and 40 for Low, Medium, High and Extreme congestion respectively: 

congestion-level low 10 medium 20 high 30 extreme 40

correlation-method

Configures the correlation method used to correlate multiple flows of a subscriber to calculate the congestion level of a subscriber.

Product

All

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

correlation-method { mean | optimistic | pessimistic } 
default correlation-method

default

Configures this command with its default setting.

Default: mean

mean

Configures the mean correlation method. The congestion level is the average across all concurrent TCP flows.

optimistic

Configures the optimistic correlation method. The congestion level is the lowest value indicated across all the concurrent flows.

pessimistic

Configures the pessimistic correlation method. The congestion level is the highest value indicated across all concurrent flows.

Usage Guidelines

Use this command to configure the method used to correlate multiple flows of a subscriber to calculate the congestion level of a subscriber. Each flow will have a congestion level and at the end of each reporting interval, the correlation method will be used to correlate all these flows to arrive at a congestion level for the subscriber.

Examples

The following command configures the optimistic correlation method: 
correlation-method optimistic

data-loss threshold

Configures the acceptable data loss percentage in the network.

Product

All

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

data-loss threshold threshold_value weightage weightage_value 
default data-loss

default

Configures this command with its default setting.

threshold threshold_value

Configures the percentage of packet loss considered as acceptable in the network. This is used to determine the congestion level to be reported.

threshold_value must be a number from 1 to 99.

Default: 1%

weightage weightage_value

Configures the data loss weightage to be given to packet loss while calculating the congestion level for a subscriber.

weightage_value must be a number from 0 to 100.

Default: 50

Usage Guidelines

Use this command to configure the acceptable percentage of packet-loss in the network, and the data loss weightage to be given to packet loss while calculating the congestion level for a subscriber. Currently, the minimum value allowed to be configured is 1%. This is required to offset the effects of parameters other than the airlink congestion. The congestion primarily occurs at the airlink, but it is also possible at other places in the flow path. The link monitor cannot distinguish between airlink and congestion at any other point. For example, if 1% packet loss is considered normal in some network and if some flow of a subscriber experiences a packet loss of 2%, then it will be considered as a sign of congestion. If some flow of a subscriber has a packet loss of 1% or less, then it is not considered as congestion, as it is in the normal range for that network.

Examples

The following command sets the packet loss percentage to 1 and the data loss weightage to 50 : 
data-loss threshold 1 weightage 50

do show

Executes all show commands while in Configuration mode.

Product

All

Privilege

Security Administrator, Administrator

Syntax

do show

Usage Guidelines

Use this command to run all Exec mode show commands while in Configuration mode. It is not necessary to exit the Config mode to run a show command.

The pipe character | is only available if the command is valid in the Exec mode.


Caution

There are some Exec mode show commands which are too resource intensive to run from Config mode. These include: do show support collection , do show support details , do show support record and do show support summary . If there is a restriction on a specific show command, the following error message is displayed: 

Failure: Cannot execute 'do	show support' command from Config mode.

end

Exits the current configuration mode and returns to the Exec mode.

Product

All

Privilege

Security Administrator, Administrator

Syntax

end

Usage Guidelines

Use this command to return to the Exec mode.

exit

Exits the current mode and returns to the parent configuration mode.

Product

All

Privilege

Security Administrator, Administrator

Syntax

exit

Usage Guidelines

Use this command to return to the parent configuration mode.

reporting-interval

Configures the reporting interval in terms of the number of sampling intervals.

Product

All

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

reporting-interval interval_value min-samples-required num_samples 
default reporting-interval

default

Configures this command with its default setting.

reporting-interval interval_value

Specifies the reporting interval in seconds.

interval_value must be a number from 1 to 60.

Default: 5 seconds

min-samples-required num_samples

Specifies the minimum number of samples required for reporting.

num_samples must be a number from 1 to 60.

Default: 5

Usage Guidelines

Use this command to configure the reporting interval in terms of the number of sampling intervals. This indicates after how many sampling intervals, the report must be generated and reported to external entities like PCRF if required.

Examples

The following command configures the reporting interval as 10 seconds and 5 samples for a subscriber: 
reporting-interval 10 min-samples-required 5

rtt-samples

Configures RTT (Round Trip Time) samples for base RTT.

Product

All

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

rtt-samples min_samples 
default rtt-samples

default

Configures this command with its default setting.

Default:

min_samples

Specifies the minimum number of RTT samples for base RTT.

min_samples must be a number from 1 to 20.

Usage Guidelines

Use this command to configure the minimum number of RTT samples for base RTT.

Examples

The following command configures 10 RTT samples: 
rtt-samples 10

rtt-variance

Configures the RTT (Round Trip Time) variance.

Product

MVG

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

rtt-variance threshold variance_percent weightage rtt_weightage 
default rtt-variance

default

Configures this command with its default setting.

rtt-variance threshold variance_percent

Specifies the RTT acceptable variance percentage.

variance_percent must be a number from 50 to 500.

Default: 100

weightage rtt_weightage

Specifies the weightage to be given to RTT variance while calculating the congestion level of a subscriber.

rtt_weightage must be a number from 0 to 100.

Default: 50

Usage Guidelines

Use this command to configure the RTT variance.

Examples

The following command sets the RTT variance threshold to 60 % and weightage to 80 : 
rtt-variance threshold 60 weightage 80

sampling-interval

Configures the sampling interval.

Product

All

Privilege

Security Administrator, Administrator, Operator, Inspector

Mode

Exec > ACS Configuration > Radio Congestion Policy Configuration

active-charging service service_name > radio-congestion policy policy_name

Entering the above command sequence results in the following prompt: 

[context_name]host_name(config-radio-congestion-policy)#

Syntax

sampling-interval sampling_interval 
default sampling-interval

default

Configures this command with its default setting.

Default: 5 seconds

sampling_interval

Specifies the sampling interval, in seconds.

sampling_interval must be a number from 2 to 60.

Usage Guidelines

Use this command to configure the sampling interval. This indicates the interval in seconds at which various TCP parameters are captured to determine the congestion level.

Examples

The following command specifies a sampling interval of 20 seconds: 
sampling-interval 20