Chapter 3. Operation
61200312L1-1
VCOM Module User Manual
3-9
U
SAGE
T
IME
Read Security: 5
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 allVoFR 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 F
RMS
Read Security: 5
(ATLAS Frames) Counts every frame that theATLAS 550 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 theVoFR device is given by the following equation:
See the
ATLAS D
ROP
definition below for a description of the term:
ATLAS D
ROP
Read Security: 5
Counter
-
measures each frame that is dropped or discarded during commu-
nication between the the ATLAS 550 and the VoFR device; i.e., ATLAS
Frames Dropped. The exchange protocol is designed so that no frames
should be discarded during this operation. A consistent pattern of dropped
frames by a given VoFR device may indicate a faulty VoFR device or an
overloaded ATLAS 550 system.
VCOM F
RMS
Read Security: 5
Counts every frame successfully sent to or received from theATLAS 550
system controller. This is an indication of activity but does not indicate the
actual amount of frame relay data exchanged. The following equation gives
the total number of frames handled for this VoFR device by the
VCOM Module:
See the
VCOM D
ROP
definition below for a description of the term:
Frames
ATLASTotal
Frames
ATLAS
Frames
ATLASDropped
+
=
Frames
ATLASDropped
The discarded frame indicated by this value does not reflect
network-level performance management
,
but indicates an
anomalous condition within the ATLAS 550 unit. Persistently
dropped frames may indicate a problem with the ATLAS 550 unit
or the VCOM Module.
Frames
VCOMTotal
Frames
VCOM
Frames
V COMDropped
+
=
Frames
VCOMDropped
