User guide
45 Mbps Backhaul User Guide
Issue 3, December 2004 Page 42 of 113
Wan Bad Rx Packets This displays the total number of corrupt packets the bridge has received from the wireless
interface. The number in (+nn) displays the number of corrupt packets received since the last page refresh.
Lan Tx Packets This displays the total number of good packets the bridge has sent for transmission by the local
Ethernet interface. The number in (+nn) displays the number of packets transmitted since the last page refresh.
Lan Rx Packets This displays the total number of good packets the bridge has received from the local Ethernet
interface. The number in (+nn) displays the number of packets received since the last page refresh.
Packets To Internal Stack This displays the total number of good packets the bridge has transmitted to the
internal stack (e.g. ARP requests, PING requests, HTTP requests). The number in (+nn) displays the number of
packets transmitted since the last page refresh.
Packets From Internal Stack.This displays the total number of good packets the bridge has received from the
internal stack (e.g. ARP responses, PING replies, HTTP responses). The number in (+nn) displays the number
of packets received since the last page refresh.
Ethernet Runt Rx Packets .Total number of Runt (short) Ethernet packets received from the local Ethernet
interface. On a half-duplex link, these packets are the result of collisions and are to be expected. If you have
forced the Ethernet configuration to full-duplex and are getting runt packets then you probably have a duplex
mismatch (the device you have connected to is running in half-duplex). The number in (+nn) displays the
number of Runt packets received since the last page refresh.
L2 Source MAC Address Conflicts .The number of times a packet received over the wireless link had the Layer
2 (Ethernet) Source MAC Addresses of a device that had previously been transmitting on the 'local' Ethernet
network. This could indicate the presence of a traffic loop or of L2 MAC Address spoofing on the network. The
number in (+nn) displays the number of conflicts since the last page refresh
ARQ Retransmitted Rx Packets . Total number of ARQ retransmitted packets that have been received. The
number in (+nn) displays the number of packets received since the last page refresh
PHY Code Word Error Counter The wireless link uses error correction techniques to enable reconstruction of
packets where there is a certain level of data corruption. This counter displays the total number of packets that
were so badly corrupted that they could not be reconstructed. The number in (+nn) displays the number of
packets received since the last page refresh
Receive Data Rate The data rate in the receive direction, expressed in Mbps and presented as: max, mean, min,
and latest histogram format.
The histogram is calculated over a one hour period. If the equipment has been running for less than one hour
then the histogram is calculated over the current elapsed time.
Transmit Data Rate The data rate in the transmit direction, expressed in Mbps and presented as: max, mean,
min, and latest histogram format.
The histogram is calculated over a one hour period. If the equipment has been running for less than one hour
then the histogram is calculated over the current elapsed time.
Signal Strength Ratio The Signal Strength Ratio, is the ratio of the power received by the Vertical / Horizontal
receivers.
Wireless Link Availability Expresses the link availability as a percentage of time since the first successful
registration after a system restart. Expressed as a percentage to four decimal places.
Code Word Error Ratio The ratio of detected codeword errors to the total number of codewords since the last
system reboot.
Statistics Page Refresh Period The statistics page refreshes automatically according to the setting entered here
(in seconds).
Reset System Counters By pressing this button all counters in the system are reset to zero. This not only affects
this page for example the Elapsed Time Indicator is also reset.
Reset System Histograms All histograms are reset, and the calculation period is restarted.