Solution : https://service.sap.com/sap/support/notes/358557 (SAP Service marketplace login required)
Key words :
ff ff 00 00 ff ff, rfc read errors occur, rfc trace files, 08000000 00009ebb 400667ff ff0000ff, >ts> mon nov 13 10, tcp %%rfcserver%% >>> close, additional key words, tcp %%rfcserver%% >>> read, nt version resources 4640, rfc library
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