D-View 5.1 User’s Guide
172
RMON Alarm
Alarm Group
The
Alarm Group
periodically takes statistical samples from variables in the probe and
compares them to previously configured thresholds. If the monitored variable crosses a
threshold, an event is generated. A hysteresis mechanism is implemented to limit the
generation of alarms. This group consists of the
alarmTable
and requires the
implementation of the event group.
The
Alarm Table
consists of a list of Alarm entries that are made up of parameters that
are set up to periodically check for alarm conditions. To use the
Alarm Group
, a new
data entry must be added to define threshold parameters:
1. Click
Add
to display the
Alarm Table Add box
.
2. Descriptions of the fields are as follows:
♦
Index –
This value is randomly generated upon opening the
Add box
. The value
uniquely identifies this entry. Other than numerical position in the Alarm Table,
there is no benefit or disadvantage in choosing a specific index value.
♦
Interval –
The interval in seconds over which the data is sampled and
compared with the rising and falling thresholds. When setting this variable, care
should be taken in the case of deltaValue sampling – the interval should be set
short enough that the sampled variable is very unlikely to increase or decrease
by more than 2^31 + 1 during a single sampling interval.
♦
Sampling –
The method of sampling the selected variable and calculating the
value to be compared against the thresholds. If the value of this object is
absoluteValue(1), the value of the selected variable will be compared directly
with the thresholds at the end of the sampling interval. If the value of this object
is deltaValue(2), the value of the selected variable at the last sample will be
subtracted from the current value, and the difference compared with the
thresholds.
♦
Variable –
The object identifier of the particular variable to be sampled. Only
variables that resolve to an ASN.1 primitive type of INTEGER (INTEGER,
Counter, Gauge, or TimeTicks) may be sampled.
♦
Threshold Value –
These are threshold values for the sampled statistic.
♦
Rising –
When the current sampled value is greater than or equal to this
threshold, and the value at the last sampling interval was less than this
threshold, a single event will be generated. A single event will also be generated
Summary of Contents for D-View 5.1
Page 11: ...D View 5 1 User s Guide Step 1 Figure 1 Figure 2 5 ...
Page 12: ...D View 5 1 User s Guide Step 2 Figure 3 6 ...
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Page 14: ...D View 5 1 User s Guide Step 4 Figure 5 8 ...
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Page 20: ...D View 5 1 User s Guide Start Run Step 1 Figure 11 14 ...
Page 21: ...D View 5 1 User s Guide Step 2 Figure 12 15 ...
Page 27: ...D View 5 1 User s Guide Figure 16 21 ...
Page 52: ...D View 5 1 User s Guide Figure 34 46 ...
Page 54: ...D View 5 1 User s Guide Figure 36 48 ...
Page 55: ...D View 5 1 User s Guide Figure 37 Using Telnet Right click on mouse to execute Telnet 49 ...
Page 56: ...D View 5 1 User s Guide Step 1 Figure 38 50 ...
Page 58: ...D View 5 1 User s Guide Figure 40 Step 2 Press the Type Button 52 ...
Page 59: ...D View 5 1 User s Guide Figure 41 Step 3 Select D Link and DES 3226 Then Press OK 53 ...
Page 60: ...D View 5 1 User s Guide Figure 42 Step 4 Properties have been changed 54 ...
Page 62: ...D View 5 1 User s Guide Log On Trap SystemÆTrap ManagementÆLogÆLog On Figure 44 56 ...
Page 63: ...D View 5 1 User s Guide Log Off Trap SystemÆTrap ManagementÆLogÆLog Off Figure 45 57 ...
Page 64: ...D View 5 1 User s Guide View Trap and Edit SystemÆTrap ManagementÆLogÆView Log Figure 46 58 ...
Page 66: ...D View 5 1 User s Guide Figure 48 Step 2 Figure 49 60 ...
Page 67: ...D View 5 1 User s Guide Step 3 Figure 50 61 ...
Page 68: ...D View 5 1 User s Guide Step 4 Figure 51 62 ...
Page 69: ...D View 5 1 User s Guide Step 5 Figure 52 63 ...
Page 70: ...D View 5 1 User s Guide Step 6 Figure 53 64 ...
Page 75: ...D View 5 1 User s Guide Figure 55 Step 2 Enter settings and press OK 69 ...
Page 76: ...D View 5 1 User s Guide Figure 56 Step 3 Open MIB Browser 70 ...
Page 77: ...D View 5 1 User s Guide Figure 57 71 ...
Page 78: ...D View 5 1 User s Guide Figure 58 Step 4 Double click on RFC1213 MIB 72 ...
Page 79: ...D View 5 1 User s Guide Figure 59 Step 5 Use MIB Browser to manage these entities 73 ...
Page 80: ...D View 5 1 User s Guide Figure 60 74 ...
Page 83: ...D View 5 1 User s Guide Figure 62 Step 2 Open the MIB File 77 ...
Page 84: ...D View 5 1 User s Guide Figure 63 78 ...
Page 85: ...D View 5 1 User s Guide Figure 64 Step 3 Compile the MIB file 79 ...
Page 86: ...D View 5 1 User s Guide Figure 65 80 ...
Page 88: ...D View 5 1 User s Guide Figure 67 Step 2 Right click on object and execute Info 82 ...
Page 91: ...D View 5 1 User s Guide Figure 70 Figure 71 85 ...
Page 99: ...D View 5 1 User s Guide Figure 80 Step 3 New Topology Established Figure 81 93 ...
Page 107: ...D View 5 1 User s Guide Figure 89 Left click twice on the mouse to edit the text 101 ...
Page 114: ...D View 5 1 User s Guide Figure 97 Step 5 Import jpg or bmp file 108 ...
Page 118: ...D View 5 1 User s Guide Figure 102 Step 10 Save to Database 112 ...
Page 119: ...D View 5 1 User s Guide Figure 103 113 ...
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Page 257: ...D View 5 1 User s Guide Figure 176 251 ...
Page 262: ...D View 5 1 User s Guide Figure 181 Device Group Manager Figure 182 256 ...
Page 264: ...D View 5 1 User s Guide Figure 184 258 ...
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