S Message processing 25 32 19 32 28 32 23 Sequencing rules Messages 25 12 19 13 28 13 23 13 Server 11 abstract data model ( 23, 25, 28) 13 higher-layer triggered events ( 23, 25) 11 initialization ( 23, 25, 28) 14 other local events ( 25, 28, 28) 15 events ( 25, 28, 28) 14 timers ( 23, 25, 28) 11 Set message 15 23 16 15 11 15 16 Sign-in Request message 26 N 14 14 7 10 11 O T Other local events 23 Timer events server ( 25, 28, 28) 28 8 23 28 P server ( 25, 28, 28) 25 Timers 32 25 32 18 Partner server 28 23 23 24 server ( 23, 25, 28) 23 Token Request message 23 27 23 15 23 15 25 Token Response message 23 23 Partner Server Challenge message 16 21 16 14 35 14 11 9 11 9 Triggered events - higher-layer 33 25 Protocol Details 19 18 28 23 R server ( 23, 25) 7 U 8 7 Update Configuration message 9 22 24 16
Message processing 25 19 28 23 Messages 12 13 13 13 11 13 11 14 15 14 11 15 16 11 16 N 7 O Other local events 23 server ( 25, 28, 28) 8 P 32 32 Partner server 23 24 23 23 23 23 25 23 Partner Server Challenge message 21 14 14 9 9 33 Protocol Details 18 R 7 8 7 9 24 S 32 32 32 Sequencing rules 25 19 28 23 Server abstract data model ( 23, 25, 28) higher-layer triggered events ( 23, 25) initialization ( 23, 25, 28) other local events ( 25, 28, 28) events ( 25, 28, 28) timers ( 23, 25, 28) Set message 23 15 15 Sign-in Request message 26 14 14 10 11 T Timer events 28 23 28 server ( 25, 28, 28) 25 Timers 25 18 28 23 server ( 23, 25, 28) Token Request message 27 15 15 Token Response message 23 16 16 35 11 11 Triggered events - higher-layer 25 19 28 23 server ( 23, 25) U Update Configuration message 22 16