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BUS_ERR on RTN980

BUS_ERR on RTN980

Created: Sep 26, 2020 02:39:46Latest reply: Oct 1, 2020 23:10:08 523 11 0 0 0
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Dears,


    kindly need support to solve below alarm which has been occured after swapping CSHNA with CSHNU cards in RTN980 . Need also to know what the alarm parameters mean and how to find the faulty card slot based on these parameters in order to solve this alarm in case it occured in another action


alarm description


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BetterMing
Created Sep 26, 2020 04:58:36

Posted by BetterMing at 2020-09-26 04:37 Hello. dear. please
BUS_ERR
Description
The BUS_ERR alarm indicates a bus fault or a data service exception on an NE .

Attribute
Alarm Severity Alarm Type
Critical

Equipment alarm

Parameters
Name Meaning
Parameter 1

For a service board or a switching and timing board, Parameter 1 indicates the bus error type.

For a system control board:

Parameter 1 is set to 0x32\0x33\0x30\0x31\0x34. For details about the meanings of Parameter 1, see Parameter 2.

0x0c: Indicates that the SCC board's online/offline state detected by the service board is consistent with the actual online/offline state of the SCC board.
0x11: Indicates that the link status of the chip port is abnormal.

For CSHNU and CSHLU boards, 0x11 indicates the connection status of the internal chip is abnormal.

0x09: Indicates that the serdes of the logical backplane port is unlocked (only for CSHNA and CSHL boards).
0x0a: Indicates the link status of the logical backplane port is abnormal (only for CSHNA and CSHL boards).
For an IF board, meanings of Parameter 1 are as follows:

Parameter 2

For a service board,

When Parameter 1 is set to a value that falls within the range from 0x01 to 0x11, Parameter 2 indicates the ID of the faulty bus.

For a system control board,

When Parameter 1 is set to 0x30, the payload bus between the system control board and extended board is faulty.
When Parameter 1 is set to 0x32, the TELECOM or LVDS bus between the system control board and service board is faulty.
When Parameter 1 is set to 0x31, the system frame header signal transmitted between the active and standby system control boards is lost.
Parameter 1 is 0x33 and Parameter 2 is set to the board ID:

When Parameter 3 is 0x1, the cross-connection bus between the Telecom bus and the service board is faulty in the uplink direction.

When Parameter 3 is 0x2, the cross-connection bus between the Telecom bus and the service board is faulty in the downlink direction.

When Parameter 1 is 0x34, the BID SMB bus is faulty.
Parameter 1 is set to 0x0c:

If Parameter 2 is set to 0x3/0x4, the actual online/offline state of SCC board A/B is inconsistent with the SCC board A/B's online/offline state detected by the service board.
If Parameter 2 is set to 0x5/0x6, the actual active/standby state of SCC board A/B is inconsistent with the SCC board A/B's active/standby state detected by the service board
If Parameter 2 is set to 0x7/0x8, the actual working status of SCC board A/B is inconsistent with the SCC board A/B's working status detected by the service board.
NOTE:
SCC A is inserted in the slot with a smaller slot ID, and SCC B is inserted in the slot with a larger slot ID.

For an IF board,

Parameter 1 is 0x05:

When Parameter 2 is 0x01, decapsulation of data services on port 1 is abnormal in the downlink direction.

When Parameter 2 is 0x02, decapsulation of data services on port 2 is abnormal in the downlink direction.

Parameter 1 is 0x08:

When Parameter 2 is 0x01, services on port 1 in the PLA group are abnormal.
When
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stephen.xu
stephen.xu Admin Created Sep 26, 2020 02:44:09

Hi, Shadow4ever.

We are working on your question.

Please kindly wait for a minute.
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Unicef
Unicef MVE Created Sep 26, 2020 02:49:36

Dear User,

Impact on the System
Services that travel along the faulty bus have bit errors or are interrupted. If EPLA is configured, EPLA switching may be triggered.
Possible Causes
Cause 1: The NE that reports the BUS_ERR alarm is faulty.
Procedure:
   1. Replace the AP or Replace the RT.
   2. Check whether the alarm is cleared. If the alarm persists, contact Huawei technical support engineers to handle the alarm.

Thanks!

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Shadow4ever
Shadow4ever Created Sep 26, 2020 03:10:14 (0) (0)
Thanks, but I need to know what is the slot of the faulty board and what each of the alarm parameters means.  
Unicef
Unicef Reply Shadow4ever  Created Sep 26, 2020 05:09:54 (0) (0)
I SEE  
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ernesto_cupet6
ernesto_cupet6 Created Sep 26, 2020 03:07:04

Hello Shadow4ever


Here what I found


You can check this two links below


BUS_ERR



https://support.huawei.com/hedex/hdx.do?lib=EDOC110011343631180BCN&docid=EDOC1100113436&lang=en&v=02&tocLib=EDOC110011343631180BCN&tocV=02&id=&tocURL=resources/nottoctopics/en-us_alarmref_0120624321.html&p=t&fe=1&ui=3&keyword=BUS_ERR


It says that when Parameter 1 is set to 0x32, the TELECOM or LVDS bus between the system control board and service board is faulty.


Follow the Handlind Procedure to see if it helps.


Best Regards


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Shadow4ever
Shadow4ever Created Sep 26, 2020 03:15:55 (0) (0)
I already checked this link before, but it didn't mention what parameter 3 &4 means . Also i don't know how bus_lof in my mentioned prt.scr related to these parameters  
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BetterMing
BetterMing Created Sep 26, 2020 04:37:04

Hello. dear.
please
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BetterMing
BetterMing Created Sep 26, 2020 04:58:36

Posted by BetterMing at 2020-09-26 04:37 Hello. dear. please
BUS_ERR
Description
The BUS_ERR alarm indicates a bus fault or a data service exception on an NE .

Attribute
Alarm Severity Alarm Type
Critical

Equipment alarm

Parameters
Name Meaning
Parameter 1

For a service board or a switching and timing board, Parameter 1 indicates the bus error type.

For a system control board:

Parameter 1 is set to 0x32\0x33\0x30\0x31\0x34. For details about the meanings of Parameter 1, see Parameter 2.

0x0c: Indicates that the SCC board's online/offline state detected by the service board is consistent with the actual online/offline state of the SCC board.
0x11: Indicates that the link status of the chip port is abnormal.

For CSHNU and CSHLU boards, 0x11 indicates the connection status of the internal chip is abnormal.

0x09: Indicates that the serdes of the logical backplane port is unlocked (only for CSHNA and CSHL boards).
0x0a: Indicates the link status of the logical backplane port is abnormal (only for CSHNA and CSHL boards).
For an IF board, meanings of Parameter 1 are as follows:

Parameter 2

For a service board,

When Parameter 1 is set to a value that falls within the range from 0x01 to 0x11, Parameter 2 indicates the ID of the faulty bus.

For a system control board,

When Parameter 1 is set to 0x30, the payload bus between the system control board and extended board is faulty.
When Parameter 1 is set to 0x32, the TELECOM or LVDS bus between the system control board and service board is faulty.
When Parameter 1 is set to 0x31, the system frame header signal transmitted between the active and standby system control boards is lost.
Parameter 1 is 0x33 and Parameter 2 is set to the board ID:

When Parameter 3 is 0x1, the cross-connection bus between the Telecom bus and the service board is faulty in the uplink direction.

When Parameter 3 is 0x2, the cross-connection bus between the Telecom bus and the service board is faulty in the downlink direction.

When Parameter 1 is 0x34, the BID SMB bus is faulty.
Parameter 1 is set to 0x0c:

If Parameter 2 is set to 0x3/0x4, the actual online/offline state of SCC board A/B is inconsistent with the SCC board A/B's online/offline state detected by the service board.
If Parameter 2 is set to 0x5/0x6, the actual active/standby state of SCC board A/B is inconsistent with the SCC board A/B's active/standby state detected by the service board
If Parameter 2 is set to 0x7/0x8, the actual working status of SCC board A/B is inconsistent with the SCC board A/B's working status detected by the service board.
NOTE:
SCC A is inserted in the slot with a smaller slot ID, and SCC B is inserted in the slot with a larger slot ID.

For an IF board,

Parameter 1 is 0x05:

When Parameter 2 is 0x01, decapsulation of data services on port 1 is abnormal in the downlink direction.

When Parameter 2 is 0x02, decapsulation of data services on port 2 is abnormal in the downlink direction.

Parameter 1 is 0x08:

When Parameter 2 is 0x01, services on port 1 in the PLA group are abnormal.
When
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Shadow4ever
Shadow4ever Created Sep 26, 2020 10:11:52

Thanks all for your replys , but can anybody analyse my alarm parameters and tell me what it means in my case and where is the fault
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BetterMing
BetterMing Created Sep 26, 2020 10:36:14

Posted by Shadow4ever at 2020-09-26 10:11 Thanks all for your replys , but can anybody analyse my alarm parameters and tell me what it means i ...
Because there are many faults that cause alarms, we can only tell you how to check. You need to find the cause of the failure and deal with it. You can also contact your local Huawei representative office, and an engineer will handle it for you.
https://e.huawei.com/en/service-hotline-query
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anniep
anniep Created Oct 1, 2020 23:10:08

Thanks for sharing
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