Cabletron Systems 1800 X.25 Li ne Monitor

Statu s Displ ays 20-9
X.25 Li ne Monitor
The X.25 line monitor is used to monitor X.25, SDLC, BSC, and async ports. The fol-
lowin g fi gu re sh ows a n exa m pl e .
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 n ext f i e ld displa ys I (In c om ing ) o r O (Ou tgo ing). ( Outgoin g pack ets ar e 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