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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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Configuring SAID for BRAS Services

Configuring SAID for BRAS Services

Manual fault diagnosis is time-consuming and locating fault points is difficult on networks that have various types of users, large numbers of access users, and peripheral interworking devices. The System of Active Immunization and Diagnosis (SAID) can therefore be used to implement self-diagnosis and self-recovery of service nodes for user access.

Usage Scenario

The SAID is used to identify typical faults and automatically diagnose and rectify the faults. The SAID function is enabled by default in typical BRAS scenarios to allow a device to periodically detect whether the number of online users or traffic rates are abnormal. When a large number of login failures or a sudden decrease in traffic is diagnosed and the time condition for self-healing is met, the system generates a log and determines whether to trigger self-healing (perform a master/slave switchover or restart a board/subcard).

Pre-configuration Tasks

None

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run aaa

    The AAA view is displayed.

  3. Run undo set said-node disable

    The default SAID node configuration is restored.

    NOTE:

    To check the status of SAID nodes, run the display said-node brief command (When OPERATE is set to Enable, SAID nodes are enabled. When OPERATE is set to Disable, SAID nodes are disabled) .

  4. Run aaa-said check-rule rule1 online-fail-num increase increase-num

    The login failure increment withwithin 10 minutes that can trigger fault detection on SAID nodes is set.

  5. Run aaa-said check-rule online-fail-reason exclude fail-code fail-code

    Login failures with a specified cause code are excluded from being detected or diagnosed on SAID nodes.

  6. Run aaa-said diag-rule online-fail-num increase fail-num user-num reduce user-num online-success-ratio below succ-rate

    The user login failure increment within 10 minutes, number of online users reduced, and login success ratio reduced that can trigger fault diagnosis on SAID nodes are set.

  7. Run aaa-said recover interval-time interval-time

    The interval between two same SAID recovery operations is set.

  8. Run aaa-said enable

    The SAID function is enabled.

    NOTE:

    Run the display aaa configuration command to check the enabling status of SAID. In the command output, if the Said switch field is displayed as enable, SAID is enabled. If the Said switch field is displayed as disable, SAID is not enabled.

  9. Run aaa-said check-rule user-number reduce-ratio reduce-ratio

    The user reduction rate threshold over which fault diagnosis and self-healing are triggered on SAID nodes is set.

  10. Run aaa-said check-rule flow-speed reduce-ratio reduce-ratio

    The traffic reduction rate threshold over which fault diagnosis and self-healing are triggered on SAID nodes is set.

Follow-up Procedure

Run the display aaa configuration command to check the configuration of the SAID function.

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Updated: 2019-01-03

Document ID: EDOC1100055031

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