Monitoring traffic, Serial ports, Monitoring traffic -7 – Cabletron Systems 1800 User Manual
Page 305: Serial ports -7, Port monitor
St atus Displays
20-7
●
Line Status
:
Failed
(level 2 is down)
Disconnect
(level 2 is up; level 3 is down)
Restart
(level 3 is restarting)
Not_configured
(port is not configured)
Operational
(level 3 is up)
●
TD(2)
, etc. – The signal names (with connector pin numbers in parentheses) are
listed as
ON
,
OFF
, or
UNK
(unknown: non-functional, unused, or in transition
between states). For different physical interfaces, the names remain the same,
but the numbers change.
If displaying signal information for a remote subscriber, press
[F2]
to update the data.
(The display for a remote subscriber shows, by default, the current values at the time
you opened the record.)
Monitoring Traffic
Serial Ports
The port monitor displays the control data and information data of traffic passing over
a serial interface. Data can be gathered in real time for an X.25, SDLC, BSC, or async
port, or an LLC2 session.
Running the traffic monitor on a frame relay port will degrade
performance on the port.
Press
[A]
at the Traffic Monitor Menu (or
[C], [E], [A]
from the Main Menu) and, when
prompted, enter a
Port
number:
0–7
for physical ports,
8–63
for logical ports, or
65
to
monitor LLC2 sessions. Valid numbers for physical ports depend on the model of
SmartSwitch 1800—see port locations on
.
While remotely controlling a node, you cannot monitor the line to which
you are connected.
A message like the following will appear:
Display Selection is: mode: Hexadecimal
LCN: All
for RLP: 0 Port: 2
Level: 3,
Data length: 25
Data Link Mgmt
FR1490:Classified, Interpreted
Selected Packets are: QData Call Clear Restart Reset Int Diag Unk only
SDLC Station Address Filter: ff
Options are F,H,L,M,S,D,Q,C,R,T,A,2,3,Y,W,E,P - and F3 to exit
Press F to start
The
Options
act as follows:
A
Enables/disables display of all/no packets.
C
Enables/disables display of X.25 Call Request/Clear packets.
D
Enables/disables display of Data packets on an X.25 port, or non-LMI DLCI
information on a frame relay port. On a frame relay port, the C/R, FECN,