Type: MAJOR

Description

This alarm is raised when the LI data decryption operation fails at the S-SBC or M-SBC node. This trap is not raised again for subsequent failures as it is a rate-limited alarm.

Repetition

None

Event Codes

sonusAlarmNodeID
sonusAlarmLevel
sonusAlarmSequenceId
sonusAlarmTime
sonusAlarmDescription
sonusScmInstanceId
sonusDecryptModuleId

Instance Fields

sonusScmInstanceId
sonusDecryptModuleId

Action

Investigate for possible Man In The Middle (MITM) attack and report the attack to the customer support team.

Impact

This impacts lawful interception between S-SBC to M-SBC or PSX to S-SBC

Clearing

Automatic; sonusLiCryptoSuccessNotification

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