Motorola PTP 500 Series User Manual page 120

Ethernet Tx Packets
This displays the total number of good packets the bridge has sent for transmission by the
local Ethernet interface.
Ethernet Rx Packets
This displays the total number of good packets the bridge has received from the local
Ethernet interface.
Packets To Internal Stack
This displays the total number of good packets the bridge has transmitted to the internal stack
(for example, ARP requests, PING requests, HTTP requests).
Packets From Internal Stack
This displays the total number of good packets the bridge has received from the internal stack
(for example ARP responses, PING replies, HTTP responses).
Link Symmetry
Link Symmetry: A ratio that expresses the division between transmit and receive time in the
TDD frame. The first number in the ratio represents the time allowed for the transmit direction
and the second number represents the time allowed for the receive direction.
Transmit Data Rate
The data rate in the transmit direction, expressed in Mbps and presented as: max, mean, min,
and latest in an histogram format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second means. See Section 7.3.1
"Histogram Data". Expected data rates can be found in Section 12 "Data Rate Calculations".
Receive Data Rate
The data rate in the receive direction, expressed in Mbps and presented as: max, mean, min,
and latest in an histogram format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second means. See Section 7.3.1
"Histogram Data". Expected data rates can be found in Section 12 "Data Rate Calculations".
Aggregate Data Rate
The sum of the data rate in the directions expressed in Mbps and presented as: max, mean,
min, and latest in an histogram format. The max, min and latest are true instantaneous
measurements; the mean is the mean of a set of one second means. See Section 7.3.1
"Histogram Data". Expected data rates can be found in Section 12 "Data Rate Calculations".
Link Capacity
The maximum aggregate data capacity available for user traffic under the current radio link
conditions, assuming the units have been connected using Gigabit Ethernet. The sum of the
displayed Transmit and Receive data rates may be lower than this figure if the link isn't fully
loaded by the current traffic profile.
Transmit Modulation Mode
The modulation mode currently being used on the transmit channel. The number in brackets
after the modulation mode and coding rate string is the effective data rate available to all MAC
layer protocols. List of all the modulation modes can be found in Section 12 "Data Rate
Calculations" ,where data rate calculations plots are given for each available modulation
mode.
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