Black Box LW0050A Manual page 43

CHAPTER 3: Using the Local Terminal for Unit Setup and Management
3.6.1.1 E C
THERNET
Ethernet counters display statistics about the unit's Ethernet-port activity.
The unit receives Ethernet frames from its UTP port and forwards them to its
internal bridge, which decides whether or not to transmit them to the Wireless
LAN. The units have a smart hardware filter mechanism which filters most of the
frames on the LAN, and hardware-filtered frames are not counted.
On the other side, frames which were received from the wireless LAN, and some
frames generated by the unit (answers to SNMP queries and pings which reached
to the unit via the UTP port), will be transmitted to the UTP port.
Available Counters:
• Total Received frames – Indicated the total number of frames that have been
received from the Ethernet port. This counter includes both bad and good
frames.
• Received Bad Frames – The number of frames with errors received from the
UTP port. A large number of received bad frames indicates a problem in the
UTP connection such as a bad UTP cable or hub port.
• Received good frames – The number of good frames (frames with no errors)
received from the UTP port.
• Forwarded to the bridge – The number of received frames that were forwarded
to the unit's internal bridge. This counter should be equal to the number of
good frames unless the internal bridge is overloaded.
• Missed Frames – Frames that the unit recognized but failed to read due to
internal bridge overload. This counter should equal zero unless the internal
bridge is overloaded.
• Transmitted to Ethernet – The number of frames transmitted by the unit to
the UTP port (frames that have been received from the Wireless side, and
frames generated by the unit itself).
3.6.1.2 W LAN C
IRELESS
Wireless counters display statistics about the unit's Wireless LAN activity.
Transmission to the wireless media includes data frames received from the UTP
ports, as well as self-generated control and management frames. When a data
frame is transmitted, the unit will wait for an acknowledge from the receiving side.
If an acknowledge is not received, the unit will retransmit the frame until it gets an
OUNTERS
OUNTERS
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