3com 3000 TX Manuel D’Utilisation
Port Statistics
6-3
Port Statistics
With the Switch Management screen displayed,
choose the management level port, then select the
STATISTICS button. The Port Statistics screen is dis-
played as shown in
choose the management level port, then select the
STATISTICS button. The Port Statistics screen is dis-
played as shown in
.
As well as showing statistics for the port, the Port
Statistics screen allows you access to traffic and
error counter screens.
Statistics screen allows you access to traffic and
error counter screens.
If the port is an ATM OC-3c Module port, the ATM
Port Statistics screen is displayed. For more informa-
tion, refer to the “SuperStack
Port Statistics screen is displayed. For more informa-
tion, refer to the “SuperStack
®
II Switch ATM
OC-3c Module User Guide”.
The Port Statistics screen shows the following:
Port ID The ID of the port you are currently manag-
ing.
ing.
Bandwidth Used This counter provides a running
average of the bandwidth used by the port,
expressed as a percentage of the maximum band-
width available for the port. A sampling period of
1 minute is used. The value gives an indication of
the general traffic level of the network. A high utili-
zation for single endstation segments is an indica-
tion that your network is operating efficiently.
However, if multiple endstations are connected to
this port and you see values of around 40% you
should reconsider the topology of your network
because each user will see degraded network per-
formance.
average of the bandwidth used by the port,
expressed as a percentage of the maximum band-
width available for the port. A sampling period of
1 minute is used. The value gives an indication of
the general traffic level of the network. A high utili-
zation for single endstation segments is an indica-
tion that your network is operating efficiently.
However, if multiple endstations are connected to
this port and you see values of around 40% you
should reconsider the topology of your network
because each user will see degraded network per-
formance.
Figure 6-2 Port Statistics screen
Frames Forwarded This counter provides a running
average of the proportion of the frames received by
the port that are forwarded, expressed as a percent-
age of all frames received by the port. A sampling
period of 1 minute is used.
average of the proportion of the frames received by
the port that are forwarded, expressed as a percent-
age of all frames received by the port. A sampling
period of 1 minute is used.
Broadcast Frame Bandwidth This counter provides
a running average of the broadcast frame band-
width used by the port, expressed as a percentage
of the maximum bandwidth available for the port. A
sampling period of 5 seconds is used.
a running average of the broadcast frame band-
width used by the port, expressed as a percentage
of the maximum bandwidth available for the port. A
sampling period of 5 seconds is used.
Error Frames This counter provides a running aver-
age of the number of errors per 10,000 frames
received and is expressed as a percentage. Refer to
the field description for Errors on
age of the number of errors per 10,000 frames
received and is expressed as a percentage. Refer to
the field description for Errors on
TRAFFIC STATISTICS Select this button to access
traffic counters for this port.
traffic counters for this port.
ERROR ANALYSIS Select this button to access
error counters for this port.
error counters for this port.