A /24 subnet IP Range means that there are 256 possible IP addresses in the range, from 0 to 255. A Shazzam batch size of 5000 means that Discovery will send 5000 ICMP packets at a time to scan the IP addresses.
Therefore, Discovery will launch the Shazzam probe once for every 5000 IP addresses in the range, or 256 /
5000 = 0.0512 times. Since the number of times must be an integer, Discovery will round up to 1 and launch the Shazzam probe once. However, since the Shazzam probe is launched for each MID Server that is assigned to the Discovery Schedule, the actual number of times will depend on how many MID Servers are available. If there are N MID Servers, then the Shazzam probe will be launched N times, each sending 5000 ICMP packets to the same IP range. Therefore, the total number of times that the Shazzam probe will be launched during discovery is N * 1 = N.
References:
* Discovery Schedule form
* Shazzam Probe
* Discovery IP range

The Set Parameter Value operation is used to assign a value to a variable in a Discovery pattern1. The syntax for this operation is as follows2:
Set Parameter Value: <Variable Name> = <Value>
The <Value> can be either a constant or an expression. To declare a constant, unchanging value, one must use quotes around the value. For example2:
Set Parameter Value: $name = "John"
This assigns the string "John" to the variable $name. The quotes indicate that the value is a constant and will not change. The other options, hash tag, brackets, and dollar sign, are not used to declare a constant value.
They have different meanings in the syntax of the Set Parameter Value operation. A hash tag (#) is used to indicate a comment2. Brackets ([]) are used to access an element of an array or a map2. A dollar sign