Solution : https://service.sap.com/sap/support/notes/325130 (SAP Service marketplace login required)
Key words : 
common naming convention <host>_<sid>_<instance>, menu options 'control -> data transfer -> start', report rsscd900 produces error message, report rsscd900 works correctly, component bc-upg-tls, component 'bc-upg-tls', 'control -> data transfer -> start', background information table clusters cdcls, appended source code correction, profile parameter 'rdisp/myname'
Related Notes : 
       
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| 420371 | Add. info on upgrading to Basis 4.6C SR2 (NDI upgrade) | 
| 390062 | Additional information about upgrading to 4.6C SR2 | 
| 358385 | Missing change documents after upgrade | 
| 329622 | Additions: Upgrading to Basis 4.6C SR1 (NDI upgrade) | 
| 327285 | Additions to upgrade to 4.6C SR1 | 
| 208975 | Additions to upgrade on Basis of 4.6C (NDI upgrade) | 
| 192949 | Additional info for upgrade to 4.6C | 
| 173330 | Conversion of tables EDIDOC & CDCLS Release 4.6 | 
| 172098 | ICNV and upgrade concatenation 4.0B -> 4.5B/4.6B/4.6C | 
| 141465 | Conversion of tables EDIDOC & CDCLS, Release 4.5 | 
| 108328 | DBIF_RSQL_NO_MEMORY during access to cluster table | 
| 106412 | Conversion of tables EDIDOC & CDCLS, Release 4.0B | 
| 89384 | Checking cluster tables with R3check |