Examples, Layer 1 status change, Layer 2 frame – Network Equipment Technologies 500 User Manual

Page 29: Examples, 3-9, Layer 1 status change, 3-9 layer 2 frame, 3-9

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The PAP screen 3-9

Examples

PAP displays layer 1, layer 2 and layer 3 traffic as shown in the examples below.

Layer 1 status change

001

number of traffic item in the buffer

USER

source of item

Jan 03

date and time of item

G821

ITU-T layer 1 protocol recommendation

00

status change type, for values see Layer 1 status line

Layer 2 frame

030

position of traffic item in the buffer (note that this differs from layers
1 and 3)

USER

source of item

Jan 03

date and time of item

Q921

ITU-T layer 2 protocol recommendation

INFO

frame type

CR0

Command/Response bit setting

PF0

Poll/Final bit setting

Ns=11

sending sequence number

Nr=59

receiving sequence number

Len=13

length of frame

00 01

hexadecimal contents of frame, including layer 3 message

Layer 2 frames can be displayed in alphanumeric or hexadecimal format. For details see
the L2 command in Chapter 4 — Commands.

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