ADTRAN 1200221L1, Руководство пользователя

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Chapter 3. Operation
61200221L1-1 VCOM Module User Manual 3-11
>
TEST
The Test menu (see Figure 3-7) requires no user action during normal oper-
ation. However, ATLAS and the VCOM Module make various Test perfor-
mance measurements available to the user to gain insight into the low-level
functioning of the VCOM Module. If a malfunction is suspected on the
VCOM module, ADTRAN service personnel can use this menu to locate the
problem.
This menu is documented here in the interest of completeness. The values
automatically reset each time the VCOM Module is installed into the
ATLAS chassis. These values are also cleared whenever the ATLAS control-
ler is rebooted.
Figure 3-7. VCOM Menus: Test
» Device
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Identifies the VoFR device.
» Usage Time
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Measures the total elapsed time that a VoFR device has the status
BUSY
.
The time is expressed with millisecond precision. Available VoFR devices
are assigned new connections using a round-robin technique where all
other available VoFR devices must be used before a given device is assigned
a new connection. This scheme tends to use all VoFR devices evenly. If a
given device shows significantly less elapsed usage time than other VoFR
devices on the same VCOM Module, that device may be faulty.
» ATLAS Frms
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(ATLAS Frames) Counts every frame that ATLAS sends to or receives from
the VoFR device. This count indicates activity but does not indicate the
actual amount of frame relay data exchanged. The total number of frames
handled by the VoFR device is given by the following equation:
See the ATLAS Drop definition below for a description of the
term.
Frames
ATLASTotal
Frames
ATLAS
Frames
ATLASDropped
+ =
Frames
ATLASDropped