Configuring Load Shedding for an MRA Device

Use this procedure to enable or disable load shedding on the specified MRA device. Load shedding can help reduce or prevent congestion at theMPE. It could cause the MRA to go into congestion. If the MRA goes into congestion before any MPE does, turning off load shedding could reduce or even solve the problem.

Note: You can also configure an MPE device from an MRA device that controls that device. (See Step 9.)

To configure load shedding for an MRA:

From the MRA section of the navigation pane, select Configuration.
The content tree displays a list of MRA device groups; the initial group is ALL.
From the content tree, select the MRA that needs load shedding capabilities.
The MRA Administration page opens.
Select the MRA tab.
The current MRA device configuration settings are displayed.
Click Advanced.
The Advanced MRA Settings page opens.
Click Modify.
The advanced configuration settings can be edited.
In the MRA Load Shedding Configuration section of the page, select the enabled state.
- true (default)
  Enables load shedding.
- false
  Disables load shedding.
- undefined
  The value for this field is taken from the associated Configuration Template. If there is not a configuration template associated, then the default value is used.
See MRA Default Load Shedding Rules for more information on load shedding rules.
(Optional) Set the Level Action for a busyness level.
1. Click the right arrow to expand the level.
2. Select one of the following default Level Actions:
  - Drop all messages.
  - Answer With appropriate code from the drop-down list.
  - Answer With Code enter the appropriate code and Vendor ID.
Add rules for the busyness level.
1. Click Add.
2. Select the Catagory.
3. Enter the Values for the load shedding rules for the appropriate busyness levels:
  - (Required) The Name
    Name of the rule.
  - In the Filter section select:
    - Application
      The application the rules apply to.
    - Message
      The type of message the rule applies to (which depends on the application chosen).
  - Select the Request Type (available only when the CCR message type is selected)
    - Initial
    - Update
    - Terminate
  - Enter the APNs
    This is a CSV list of one or more access point names that the massage must contain.
  - In the Action section select the action to be taken if the criteria are met for the load-shedding rule.
Repeat steps 6 through 8 to add rules In the MPE Load Shedding Configuration section.
Note: MPEs can use all four busyness levels.
See the CMP Wireless User's Guide for more information.
Click Save.

The specified Load Shedding setting is saved for this MRA device. When load shedding is enabled, if the busy threshold is exceeded, an alarm is generated to notify you that the MRA is in a busy state. When either the clear threshold or the busy time limit is met, another alarm is generated to notify you that the MRA is processing requests.