LSAs refer to external links. Type 5 LSAs have the following characteristics:
stubby area (NSSA) and another AS. Type 7 LSAs are advertised only within an NSSA. These
LSAs are converted to Type 5 LSAs by the ARB when leaving an NSSA. Type 7 LSAs have a
lower priority than Type 5 LSAs.
adjacencies. Every router in the area gets at least one copy of the LSA. All routers within an
area share the same link-state database.
bandwidth than RIP. OSPF is a classless protocol that supports variable-length subnet masking,
supernetting, summarization, and discontiguous subnets.
algorithm places each router at the root of a tree and calculates the shortest path to each
destination based on the cumulative cost required to reach the destination. The cost is a measure
of the overhead required to send packets across an interface. The cost is inversely proportional
to the interface's bandwidth. The higher the bandwidth, the lower the cost. The algorithm
that calculates the shortest path to each destination inside an area uses lots of CPU
processing cycles. As the number of link-state packets increases, the number of calculations
increases exponentially.