X25AM Configuration and Management Manual

PTrace for the X25AM Subsystem
X25AM Configuration and Management Manual—523424-004
6-15
Level-3 Trace Example
An RR packet is used to acknowledge received data packets. However, the X25AM
level 3 waits to receive the number given by the configured L3 window size of incoming
packets before it sends an RR packet to acknowledge them all. If the L3 window is 2,
an RR packet is sent after every second packet is received.
Level-3 Trace Example
The following trace was taken with all trace record types selected:
Level-3 Trace Analysis
Sequence #27 from the level-3 trace is shown here with the pertinent fields in boldface:
Ptrace Log File: $DATA2.PATRICIA.TRL3LOG
?record 1,9999
06/11/99 15:16:33.882526 >000.000000 #27 L3 Pkt In
SDN #000/%000 LEN #0010 GFI(0001) MOD8 LGN/LCN $001
Call^req
000: 1001 0B20 0000 0000 0000
CALLED ADDRESS ($0)
CALLING ADDRESS ($2) 00
FACILITIES ($00)
USER DATA ($04) 00000000
06/11/99 15:16:33.900621 >000.018095 #33 L3 Pkt Out
SDN #001/%001 LEN #0005 GFI(0001) MOD8 LGN/LCN $001
Call^conf
000: 1001 0F00 00
CALLED ADDRESS ($0)
CALLING ADDRESS ($0)
FACILITIES ($00)
06/11/99 15:17:15.447953 >041.547332 #63 L3 Pkt Out
Data M=0 P(S)=0 P(R)=0
000: 1001 0064 6A66 6A6B 6A66 6B6A 6B64 6A6B
008: 646A 6B66 6A
06/11/99 15:18:38.218254 >082.770301 #113 L3 Pkt Out
SDN #000/%000 LEN #0005 GFI(0001) MOD8 LGN/LCN $001
Clear
000: 1001 1300 00
CAUSE CODE: $00
DIAGNOSTIC CODE: $00/#000
06/11/99 15:18:38.345233 >000.126979 #121 L3 Pkt In
SDN #000/%000 LEN #0003 GFI(0001) MOD8 LGN/LCN $001
Clear^conf
000: 1001 17
End of Trace file.
06/11/99 15:16:33.882526 >000.000000 #27 L3 Pkt In
SDN #000/%000 LEN #0010 GFI(0001) MOD8 LGN/LCN $001
Call^req
000: 1001 0B20 0000 0000 0000
CALLED ADDRESS ($0)
CALLING ADDRESS ($2) 00
FACILITIES ($00)
USER DATA ($04) 00000000