Configuring Congestion Control; Configuring The Congestion Control Threshold - Cisco ASR 5500 System Administration Manual

Configuring Congestion Control

Important
For the MME three levels of congestion control thresholds are supported – critical, major and minor. By
default only the critical threshold is supported for other products. SNMP traps also support major and minor
congestion control thresholds. A set of congestion-action-profile commands allows an operator to establish
additional actions to be taken for specific thresholds and threshold levels.
Configuring Congestion Control
To configure Congestion Control functionality:
Step 1 Configure congestion control thresholds as described in
Step 2 Configure service congestion policies as described in
Step 3 Enable redirect overload policies as described in
Step 4
Configure disconnecting subscribers based on call or inactivity time as described in
on Call or Inactivity Time, on page 204
Step 5 Save your configuration as described in the Verifying and Saving Your Configuration chapter.

Configuring the Congestion Control Threshold

To configure congestion control threshold, apply the following example configuration in the Global
Configuration mode of the CLI:
configure
congestion-control threshold max-sessions-per-service-utilization percent
congestion-control threshold tolerance percent
end
Notes:
• There are numerous threshold parameters. See Global Configuration Mode Commands in the Command
• The tolerance is the percentage under a configured threshold that dictates the point at which the condition
• Multiple levels of congestion thresholds – critical, major and minor – a re supported for various types
ASR 5500 System Administration Guide, StarOS Release 21.5
202
This section provides the minimum instruction set for configuring congestion control. Commands that
configure additional interface or port properties are provided in Subscriber Configuration Mode in the
Command Line Interface Reference. Always refer to the Administration Guides for all of the licensed
products running on this platform for additional configuration information with respect to congestion
control. Congestion control functionality varies based on product and StarOS version.
Line Interface Reference for more information.
is cleared.
of congestion control thresholds. If a threshold level is not specified, the default is critical. Currently,
major and minor thresholds are only supported for the MME. The congestion-action-profile command
under lte-policy defines the action to be taken when thresholds are exceeded. See Global Configuration
Configuring the Congestion Control Threshold, on page 202
Configuring Service Congestion Policies, on page 203
Enabling Congestion Control Redirect Overload Policy, on page 204
Congestion Control
Disconnecting Subscribers Based