Hello,
Are you asking what a bounded update is?
If so please see the link below:
http://cisco.num.edu.mn/CCNA_R&S4/course/module7/7.1.2.3/7.1.2.3.html
”
EIGRP uses the terms partial and bounded when referring to its updates. The term partial means that the update only includes information about the route changes. The term bounded refers to the propagation of partial updates that are sent only to those routers that the changes affect.
By sending only the routing information that is needed, only to those routers that need it, EIGRP minimizes the bandwidth that is required to send EIGRP updates.”
-David