PictureTel Concorde 4500, Руководство администратора, Страница: 161 / 250

Using the Diagnostics Menus
7-7
The following table describes the current network channel statistics
for SG4, H.261, and H.263 communications.
Table 7-3: SG4 and H.320 Network Statistics
Statistic Description Interpretation
Channel Use
Initial
for channel 1
2nd ch
for channel 2
This line indicates the logical channel number that
is being transmitted or received on the individual
ports.
Tx Clock Transmit clock This number indicates the transmit data rate.
Rx Clock Receive clock This number indicates the receive data rate.
Chans - Tx/Rx The transfer rate This number should correspond to the
Tx
or
Rx
Clock
rates:
1B = 64000
1Br = 56000 1H0 = 384000
1H0r = 336000
Tx Frames The number of H.221
frames transmitted This count continually increments during an SG4
or H.261 call or while an SG4 or H.261 call is being
attempted.
Rx Frames The number of H.221
frames received This count continually increments during an SG4
or H.261 call or while an SG4 or H.261 call is being
attempted.
Rcv Err Bit The number of H.221
error bits received
from the far-end
system The far-end system has indicated a problem in the
data it is receiving. This statistic represents an end-
to-end quality monitoring feature.
Alignment Lost The number of
times the SG4 or
H.261 frame
alignment signal has
not been received as
expected Usually this count, which indicates the integrity of
the end-to-end connection, increments by one at
the end of a call or when a far-end loopback test is
initiated.
Any other change in this counter indicates a failure
of the transmission line or, less frequently, a CSU
problem.