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The Graceful Assert Handling framework enables graceful handling of subscriber sessions for which ASSERT condition is hit during call execution. This is achieved without affecting other subscriber sessions on the same proclet.

Normally, when the ASSERT condition is hit, the Session Manager (SessMgr) proclet restarts and recovers all the subscriber sessions from the AAA Manager (AAAMgr). The recovered subscriber sessions are moved to IDLE state.

When Graceful Assert Handling is enabled, the SessMgr proclet will not be restarted. Instead, the SessMgr proclet recovers only the affected subscriber’s session from the AAAMgr, and clears the existing subscriber’s session on the SessMgr. The recovered subscriber sessions are moved to IDLE state. During the recovery procedure, all messages directed towards the subscriber are dropped. After recovery, the subscriber will continue to handle messages directed towards it. With this procedure, the remaining subscriber sessions on the SessMgr remain unaffected.

Use the following configuration to enable or disable the Graceful Assert Handling framework. By default, this command is enabled.

configure 
   debug controlled-assert s4sgsn 
      [ disable | enable ] core-generation 
      limit-per-asset asset_value 
      [ no ] test file-name file_name line-number line_num [ sequence-number seq_num ] 
      end 

Notes:

• controlled-assert : Configures the controlled assert framework.

• s4sgsn : Configures the S4-SGSN controlled assert.

• core-generation : Configures core generation for controlled assert. Default: Enabled.

• limit-per-asset : Configures the limit per assert for controlled assert. Default: 5.

• test file-name file_name line-number line_num [ sequence-number seq_num ] : Configures controlled assert test handling.

  • file-name file_name : Configures the file name where assert control is required. file_name must be an alphanumeric string of 1 through 254 characters.

  • line-number line_num : Configures the line number where assert control is required. line_num must be an integer from 1 to 4294967295.

  • sequence-number seq_num : Configures the sequence number where assert control is required. seq_num must be an integer from 1 to 100. Default: 1.

• disable : Disables the specified action for controlled assert framework.

• enable : Enables the specified action for controlled assert framework.

• no : Removes the specified test configuration related to controlled assert framework.

This section provides information on the show commands available to support Graceful Assert Handling.