Keywords:
ATN 950B, slave main control board, unregistered
Summary:
On an ATN 950B equipped with the AND2CXPE/AND2CXPA/AND2CXPB boards, software does not send
packets in the defined order, causing communication failures between the master and slave main control boards.
As a result, the slave main control board fails to be registered.
[Problem Description]
Application scenario:
The AND2CXPE/AND2CXPA/AND2CXPB boards function as the master and slave main control boards on
an ATN 950B.
Trigger conditions:
There is a low probability that the problem occurs if the AND2CXPE/AND2CXPA/AND2CXPB boards function
as the master and slave main control boards on an ATN 950B.
Symptom:
The slave main control board cannot be registered.
Identification method:
1. Check the type of the main control boards.
Run the display version command in the user view.
This problem occurs only on the ATN 950B on which the AND2CXPE/AND2CXPA/AND2CXPB boards function
as the master and slave main control boards.
|
[huawei]display version …… CXPB(Master) 7 : uptime is 18 days, 22 hours, 36 minutes StartupTime 2014/07/14 16:19:41 SDRAM Memory Size : 1024M bytes FLASH Memory Size : 128M bytes CFCARD Memory Size : 498M bytes RAMDISK Memory Size : 10M bytes ANDD00CXPB01 version information PCB Version : AND2CXPB REV C //This warning is involved only when the value AND2CXPE, AND2CXPA, or AND2CXPB is recorded here. |
2. Check the board registration status.
Run the display device command in the user view.
|
[huawei]display device ATN950B’s Device status: Slot # Type Online Register Status Primary – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 1 PIC Present Registered Normal NA 2 PIC Present Registered Normal NA 3 PIC Present Registered Normal NA 4 PIC Present Registered Normal NA 7 CXP Present NA Normal Master 8 CXP Present Unregistered Abnormal Slave//Indicates that the slave main control board is not registered. 9 PWR Present Registered Normal NA 10 PWR Present Registered Normal NA 11 FAN Present Registered Normal NA |
3. Check the cause of the board reset. Information on the master main control board shows that the slave main
control board encountered an HA failure.
Run the display board-reset 8 command. The parameter 8 indicates the slot number of the unregistered board.
|
[huawei-diagnose]display board-reset 8 CXP8 reset information: — 1. DATE:2014-06-23 TIME:02:15:41 RESET Num:4 — Reason:VRP HA Module reset slave board //Indicates that the slave main control board is reset due to an HA failure. |
[Root Cause]
In some cases, software does not send packets in the defined order, causing communication failures between
the master and slave main control boards. As a result, the slave main control board fails to be registered.
[Impact and Risk]
The slave main control board is not registered and fails to back up the master main control board.
[Measures and Solutions]
Recovery measures:
Install a patch on the ATN 950B.
Workarounds:
None
Solutions:
Install the V200R003SPH005 patch or later on the ATN 950B V200R003C00SPC200/ ATN 950B V200R003C10SPC100.
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