3Com TR - Manual (Page 90)

6-2 C HAPTER 6: M ONITORING THE S WITCH 2000 TR
Unit Statistics
NOTE: The Unit Statistics screen provides an easy
method for viewing per-port performance. It displays
port traffic activity for each active port. Values are
refreshed approximately every two seconds. The
counters are reset after the values reach approxi-
mately 4.2 billion. See Figure 6-2.
To view the Unit Statistics screen, take these steps
from the Switch 2000 TR Main Menu:
1 Select Switch Management.
The TR Management screen appears.
2 Press [Space Bar] until Unit appears.
3 Press [Down Arrow] until Statistics highlights.
4 Press [Return].
The Unit Statistics screen appears.
5 Select statistic category and view.
Figure 6-2 Unit Statistics Screen
The Unit Statistics screen displays these buttons:
RECEIVED—The total number of frames that have
been received by the port including frames with
errors.
TRANSMITTED—The total number of frames trans-
mitted by the port, including frames with errors.
FORWARDED—The total number of frames received
and then forwarded by the port.
FILTERED—The total number of frames filtered by
this port. Frames are filtered because the destination
station was on the same segment as the source sta-
tion.
BROADCASTS—The total number of broadcast
frames seen by the port.
CLEAR SCREEN COUNTERS—Use this button to set
screen counters back to zero. This clears only counters
displayed in the Unit Statistics screen. It does not
affect the counters on the device. This prevents
remote SNMP stations from seeing network anoma-
lies.