Figure 61 illustrates the propagation of a Rollup Condition in the Topology hierarchy.
children of this model
Determine the Condition for the device.
Set the Condition Color on the icon.
Use the Condition Values from children to calculate the Composite Condition
Condition more severe than
Rollup Condition
?
Set the Condition Value to the Significance Level.
Obtain the Significance level for the current Rollup Condition.
Yes
No Determine the Rollup Condition.
Compare the Composite Condition to Rollup Thresholds.
Set the Rollup Condition Color on the icon.
Obtain the Significance Level for the current Condition of the device.
To Parent model
Condition Values from other children
Condition Values from
Determine the Condition for the device.
Set the Condition Color on the icon.
Use the Condition Values from children to calculate the Composite Condition
Condition more severe than
Rollup Condition
?
Set the Condition Value to the Significance Level.
Obtain the Significance level for the current Rollup Condition.
Yes
No Determine the Rollup Condition.
Compare the Composite Condition to Rollup Thresholds.
Set the Rollup Condition Color on the icon.
Obtain the Significance Level for the current Condition of the device.
Figure 61: Rollup Condition Process
This example depicts two layers of a Topology hierarchy. The example assumes the use of default Rollup Thresholds and Significance Levels. At the lowest level in the figure there are five devices: two hubs, a router, and two end-point devices. These are contained by TWLAN, a LAN of type
11 = 7 + 0 + 1 + 3 + 0
1. Calculate the Composite Condition (sum of the Condition Values from children = 11).
Condition more severe than
Rollup Condition
?
4. Apply the Significance level for the current Rollup Condition to set the Condition Value. (7)
2. Determine the Rollup Condition Compare the Composite Condition to Rollup Thresholds.
Yellow Threshold= 3 Orange Threshold=6 Red Threshold=10
Green Green Green Green Green
TW LAN
3. Set the Rollup Condition color to Red on the icon (Composite Condition > Red Threshold)
Rollup Condition (Red) is more severe than Condition (Green).
No
Yes 5. Calculate the Composite
Condition (sum of the Condition Values from children = 8).
6. Determine the Rollup Condition.
Compare the Composite Condition to Rollup Thresholds.
Yellow Threshold= 3 Orange Threshold=6 Red Threshold=10
7. Set the Rollup Condition color to Orange on the icon (Composite Condition > Orange Threshold but <
Red Threshold).
Red Green Yellow Orange Green
Rollup Conditions:
802_3_LAN (as are the two other LANs, FINANCE and ENGRG). The network group model named OVERALL_NET collects these three LAN models.
The following Rollup Conditions and Conditions, at lower levels, determine the top-level Rollup Condition for the network group model OVERALL_NET:
Devices collected by TWLAN Hub#1
Condition = Green Rollup Condition = Red Condition Value = 7 Hub#2
Condition = Green
Rollup Condition = Orange Condition Value = 3 Router#1
Condition = Green
Rollup Condition = Yellow Condition Value = 1
End-Point Devices PC#1 & PC#2 Condition = Green
Rollup Condition = Green Condition Value = 0 LAN named FINANCE Condition = Green
Rollup Condition = Green Condition Value = 0 LAN named ENGRG
Condition = Green Rollup Condition =Yellow Condition Value = 1
Every model within a Topology View receives its Collects relation from the model that it is collected by. Therefore, all models contribute to the Rollup Condition of the network group model. The following steps provide a detailed flow of condition values that contribute to the Rollup Condition for the model named OVERALL _NET shown in the example of Figure 61.
1. Determine the Composite Condition for the TWLAN network group model.
Composite Condition is the sum of the collected models’ Condition Values.
In this case, the device models have Condition Values of:
“Orange” Condition hub model has a Condition Value of 3.
“Red” Condition hub model has a Condition Value of 7.
“Green” Condition PC#1 model has a Condition Value of 0.
“Yellow” Condition router model has a Condition Value of 1.
“Green” Condition PC#2 model has a Condition Value of 0.
Therefore, for the TWLAN model:
Composite Condition = (3 + 7 + 0 + 1 + 0) = 11 2. Determine the Rollup Condition for TWLAN.
In this case:
Composite Value = 11
TWLAN Yellow Threshold = 3 TWLAN Orange Threshold = 6 TWLAN Red Threshold = 10
Composite Value > Red Threshold Therefore:
Rollup Condition for TWLAN = Red
3. Assign Significance Levels to TWLAN Condition and Rollup Condition.
In this case, Significance Levels are:
Value When Yellow = 1 Value When Orange = 3 Value When Red = 7 Therefore:
Rollup Condition = Red Condition = 7 4. Set Condition Value for TWLAN model.
In this case:
Rollup Condition more severe than Condition Therefore:
Condition Value = Rollup Condition Significance Level = 7 The three network models TWLAN, ENGRG, and FINANCE pass their Condition Values up to the network group model OVERALL_NET.
Changes in the Condition or Rollup Condition for the device models at lower levels can produce changes in the topology models further up in
the Topology hierarchy. The Rollup Conditions for these three networks produce the following Rollup Condition for OVERALL_NET.
5. Determine the Composite Condition for the OVERALL_NET network group model.
Composite Condition is the sum of the collected models’ Condition Values.
In this case, the network models have Condition Values of:
Red Condition TWLAN model has a Condition Value of 7.
Green Condition FINANCE model has a Condition Value of 0.
Yellow Condition ENGRG model has a Condition Value of 1.
Therefore, for the TWLAN model:
Composite Condition = (7 + 0 + 1) = 8
6. Determine the Rollup Condition for OVERALL_NET.
In this case:
Composite Value = 8 Yellow Threshold = 3 Orange Threshold = 6 Red Threshold = 10
Composite Value > Orange Threshold, but < Red Threshold Therefore:
Rollup Condition for OVERALL_NET = Orange