Reference Guide for the Model RT328 and Model RH348 ISDN Routers
D-4 Using the Protocol Analyzer and Trace Tools
Figure D-1. ISDN Protocol Analyzer Display
1 00110100 INFORMATION ELEMENT : SIGNAL
2 00000001 IE length : 1 octets
3 00000001 Signal value : ring back tone on
00:00:13.42 4 bytes LAPD D TE R SAPI=0 TEI=97 RR P/F=0 NR=9
00:00:13.44 11 bytes LAPD D NT C SAPI=0 TEI=97 INFO P=0 NR=7 NS=9
7 bytes Northern American
Dest CR=0X03 PD=Q.931 CONNect
1 00110100 INFORMATION ELEMENT : SIGNAL
2 00000001 IE length : 1 octets
3 00111111 Signal value : tones off
00:00:13.46 4 bytes LAPD D TE R SAPI=0 TEI=97 RR P/F=0 NR=10
00:00:13.47 8 bytes LAPD D TE C SAPI=0 TEI=97 INFO P=0 NR=10 NS=7
4 bytes Northern American
Orig CR=0X03 PD=Q.931 CONNect ACKnowledge
00:00:13.49 4 bytes LAPD D NT R SAPI=0 TEI=97 RR P/F=0 NR=8
00:00:24.65 4 bytes LAPD D NT C SAPI=0 TEI=88 RR P/F=1 NR=2
00:00:24.66 4 bytes LAPD D TE R SAPI=0 TEI=88 RR P/F=1 NR=3
00:00:36.14 12 bytes LAPD D TE C SAPI=0 TEI=97 INFO P=0 NR=10 NS=8
8 bytes Northern American
Orig CR=0X03 PD=Q.931 DISConnect
1 00001000 INFORMATION ELEMENT : CAUSE
2 00000010 IE length : 2 octets
3 1------- Extension bit : not continued
-00----- Coding standard : CCITT
---0---- Spare
----0000 Location : user
4 1------- Extension bit : not continued
-0010000 Cause value : Normal call clearing
00:00:36.16 4 bytes LAPD D NT R SAPI=0 TEI=97 RR P/F=0 NR=9
00:00:36.36 8 bytes LAPD D NT C SAPI=0 TEI=97 INFO P=0 NR=9 NS=10
4 bytes Northern American
Dest CR=0X03 PD=Q.931 RELease
00:00:36.38 4 bytes LAPD D TE R SAPI=0 TEI=97 RR P/F=0 NR=11
00:00:36.39 8 bytes LAPD D TE C SAPI=0 TEI=97 INFO P=0 NR=11 NS=9
4 bytes Northern American
Orig CR=0X03 PD=Q.931 RELease COMplete
00:00:36.41 4 bytes LAPD D NT R SAPI=0 TEI=97 RR P/F=0 NR=10
End of buffer