3.10 Operation of OSPF (3/4)
nAs OSPF allows for type of service routing, each router maintains 3
link status databases: one for delay, one for throughput
and one for reliability.
nA packet may require an intraarea path, or an intraarea-interarea path or an intraarea-interarea-interAS path dpending on where the host is.
nRouters in areas exchange link status packets (LSP) periodically.
Each packet contains the following information: ID of node that created LSP, list
of directly connected routers with the link cost, a sequence
number and a time to live.