Reference Guide for the Model RT328 and Model RH348 ISDN Routers

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

 

 

 

 

 

 

 

 

 

Figure D-1. ISDN Protocol Analyzer Display

D-4

Using the Protocol Analyzer and Trace Tools