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SCC card is very busy cause failure in change board wizard.

Publication Date:  2012-07-25 Views:  32 Downloads:  0
Issue Description
One day customer "j" used the U2000 client to upgrade one board of OSN 3500 version 5.21.18.50p01 from STM-16 to STM-64.
He run the SDH network expansion wizard, but the change failed.
The U2000 show a message (detail reason: matrix algorithm sub module checking service connection failed- error code: 38735).



Alarm Information
Matrix algorithm sub module checking service connection failed- error code: 38735.


Handling Process
1- Collect the data using the data collector with full mode.
2- Check if there is any error in the xc files as below:-
975 2011-4-28 1:5:15 0x1 level: 3, file: mo_slot.cpp, line: 6838, errno: 0xffff, info: evt8:413
976 2011-4-28 1:14:45 0x1 level: 3, file: patch_xc_myalgo, line: 65, errno: 0x5002, info: compute fail
977 2011-4-28 1:14:45 0x1 level: 3, file: mo_ne.cpp, line: 1498, errno: 0x5002, info: postconfirm
978 2011-4-28 1:14:45 0x1 level: 3, file: mo_ne.cpp, line: 1556, errno: 0x5002, info: verifyreturnfail

3- Reset the scc card before doing this operation will be done well.
Root Cause
After analyze the NE log we found that:-
1- Before the customer did this operation, the scc card was very loaded do many process.
2-at this time U2000 tried to delete the cross-connect from NE, but the matrix algorithm was busy so operation failed.


Suggestions
Suggestion:
If this problem occur, we should collect data  and ask RND analyze; Because if soft reset can not solve this problem and all services will interrupt;

END