Cabletron Systems Netlink FRX8000, Руководство пользователя, Страница: 287 / 468

St atus Displays 19-7
Figure 19-6 shows an example of a display of RR and Data packets on an X.25 line,
and Figure 19-7 shows routing updates on a trunk.
Figure 19-6 Line Monitor Display, X.25 Example
[C], [D] from Main Menu
Information in this Display
On each line (see CCITT Recommendation X.25) in the above display:
●
The left most field shows the time, to hundredths of a second.
●
The next field displays
T
(Transmit) or
R
(Receive). (Transmitted packets are
also displayed in reverse video.)
●
The next field identifies the packet type.
●
Q
,
M
, or
D
appears between the packet type and the
LCN
field if the
Q
,
M
, or
D
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.)
Pending display of data packets, the line monitor stores them in a buffer. If the display
cannot keep up with the line's data traffic, the buffer will overflow, and some packets
will not be displayed. When this occurs, the message
Line Monitor Buffer is Full
appears. Display buffer overflow does not impair data integrity or interfere with traffic
on the line.
09:23:05:16R DATA LC N 4072 PR 4 PS 4LNG 1024 :56686520756190G801
09:23:05:27R DATA LC N 4072 PR 4 PS 5LNG 1024 :46686521255190G811
09:23:05:27R RR LC N 4071 PR 6 PS
09:23:06:05T RR LC N 4072 PR 6 PS
09:23:06:18T DATA LC N 4072 PR 6 PS 6LNG 1024 :557586707555090G85
09:23:07:13T DATA LC N 4071 PR 6 PS 7LNG 1024 :54389450758090G859