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Status Displays 20-9
X.25 Line Monitor
The X.25 line monitor is used to monitor X.25, SDLC, BSC, and async ports. The fol-
lowing figure shows an example.
Figure 20-6 X.25 Line Monitor Display
[C],[E]
from Main Menu
Information in this Display
On each line:
●
The leftmost field shows the time, to hundredths of a second.
●
The next field displays
I
(Incoming) or
O
(Outgoing). (Outgoing packets are also
displayed in reverse video.)
●
The next field identifies the packet type.
●
D
,
M
, or
Q
appears between the packet type and the LCN field if the D, M, or Q
bit is turned on in the packet.
●
LCN
is the logical channel of a data session.
●
PR
is the packet receive sequence number.
●
PS
is the packet send sequence number.
●
LNG
is the length of the data in bytes.
●
The field to the right of the colon contains the data in a data packet. (Data
exceeding the screen width is displayed on the next line.)
09:23:05:16 I DATA LCN 4072 PR 4 PS 4 LNG 1024:56686520756190G801
09:23:05:27 I DATA LCN 4072 PR 4 PS 5 LNG 1024:46686521255190G811
09:23:05:27 I RR LCN 4071 PR 6 PS
09:23:06:05 O RR LCN 4072 PR 6 PS
09:23:06:18 O DATA LCN 4072 PR 6 PS 6 LNG 1024:557586707555090G85
09:23:07:13 O DATA LCN 4071 PR 6 PS 7 LNG 1024:54389450758090G859