Test 3 Flashcards
Each router interface represents an
Internetwork
Each routers maintains a table of known network IP addresses
- Networks to which they are directly connected
- Networks to which other routers are connected
Routers pass the contents of their routing table to
their neighbor ( peer ) routers
Routing tables often contain numerous
Network ip addresses
It would take considerable bandwidth and time to transmit
All of these network IP addresses
In large inter-networks _______________________ of network IP addresses can exist
hundreds, or even thousands,
Why is it problematic for routers to maintain hundreds or thousands in their routing tables?
Requires memory to store
Requires time to transmit to other routers
is a method of representing a series of network IP addresses in a single “summary” network IP address
Route summarization
Router summarization is also referred to as:
Route aggregation
Supernetting
Is the reverse of subnetting
Route summarization
can reduce the number of network IP addresses that a router must maintain, or transmit to other routers
Route summarization
Route summarization only works if the network address numbers are
consecutive
Recognize that route summarization , or super-netting, creates a larger single network from
the smaller networks
Route summarizations must contain ____________ network IP addresses
powers of 2