Dependent-resource-name depends on
Enter configuration details of dependency (parent) resource
to establish dependency with dependent (child) resource.
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Resource Name
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Select the dependency resource that impacts your dependent
(child) resource.
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Add Variables
Variables in this section are used to extract parts of the child
resource’s property. Such variables are used to check dependency
using conditional statements.
Variables configured here can be used to check dependency in
all terms.
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Name
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Enter name for the variable. The name can follow the
regex pattern: [a-zA-Z][a-zA-Z0-9_-]* and can have up to 64 characters.
For example, interface-name-split.
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Expression
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Enter a regular expression to extract parts of a property
value.
See regex package for more information.
For example, if you use the regular expression “.*(\d+)/(\d+)/\d+”
on interface-name property of interface resource, you can extract
line card number and PIC number.
The example regex forms two capture groups to extract line card
number and PIC number. The first capture group, which is line card
number, can be referred as interface-name-split-1 and second capture
group, which is PIC number, can be referred as interface-name-split-2.
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Resource label
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Select the name of the dependent (child) resource.
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Field
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Select a property in the child resource on which regex
expression should be applied.
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Case sensitive
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Enable this field.
If you enable this field, Paragon Insights ignores the case
of resource properties when processing conditions.
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Add Terms (Terms > Add Item)
Terms contain the logic to check for a dependency relation between
resources.
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Term Name
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Enter a term name that follows the [a-zA-Z][a-zA-Z0-9_-]*
pattern.
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Depends on Multiple Instances
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Enable this field if your dependency logic involves checking
if a child resource property is dependent on multiple instances of
a parent resource property.
For example, you configured Aggregated Ethernet (link aggregation
group) as a dependent (child) resource to interface resource. As AE
depends on multiple links (interface resource), you must enable Depends on Multiple Instances knob.
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Dependency Type
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Select the type of dependency.
Local Device and Network dependency is the default option.
If you select Other Device dependency, configure details in
For Every Device section.
If you select Other Network dependency, configure details in
For Every Network Group section.
See Understand Resources and Dependencies for more information.
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Evaluate Next Term
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This field is disabled by default.
Enable this field if your dependency logic involves checking
condition in other terms.
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(Optional) Add Variable
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Enter the following details of a child resource property:
Name
Regular Expression
Resource Name
Resource Property Field
You can configure a variable for a child resource property.
Variable you configure here can only be used in conditional statements
within the term.
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For Every Device
Selects a device from a list of devices in device groups.
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Label As
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Enter a name for the dependency (parent) resource instance
that is selected. The name must follow the [a-zA-Z][a-zA-Z0-9_-]*
pattern.
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Across all device groups
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Enable this field if you want Paragon Insights to check
devices in all device groups for dependency.
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In device groups
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Enter the names of device groups. The child resource
property will be checked against devices in the specified device groups
for dependency.
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For Every Network Group
Instructs Paragon Insights to perform the dependency logic in
all or select network groups.
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Label As
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Enter a name for the dependency (parent) resource instance
that is selected. The name must follow the [a-zA-Z][a-zA-Z0-9_-]*
pattern.
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Across all network groups
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Enable this field if you want Paragon Insights to check
all network groups for dependency.
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In network groups
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Enter the names of network groups. The child resource
property will be checked against instances of network resource property
in the specified network groups.
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Locate Resource
The locate resource iterates through all instances of a given
resource.
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Resource Name
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Select a resource.
If the resource type is Local Device & Network, the resource in the list is of the format topic-name/resource-name.
If the resource type is Other Device or Other
Network, then the resource in the list is of the format for every device/network label-as:topic-name/resource-name.
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Label As
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Enter a label name.
Paragon Insights stores each instance of the selected resource
in the label. For example, instances such as interface instances or
OSPF sessions.
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(Optional) Add Variable
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Enter the following details of a resource property of
the selected resource:
Name
Regular Expression
Resource Name
Resource Property Field
You can configure a variable for a property of the selected
resource. Variable you configure here can only be used in conditional
statements within the term.
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Conditions
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Conditions in Locate Resource are used to identify if
the selected resource is correct one or not. If the condition does
not match for a particular instance it picks the next instance and
checks the condition. This continues until we get an instance where
conditions matches, or all the instances of the resources are exhausted.
To check dependency, select a resource property in left-hand
side (LHS), a remote resource property in RHS and the operator to
check for a condition.
Paragon Insights supports matches-with as
a condition. You can also add functions in the LHS field of the conditional
statement.
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