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CHAPTER 9: ADVANCED OSPF (:forbidden: Areas (OSPF Route Types (Inter-Area…
CHAPTER 9:
ADVANCED OSPF
:forbidden:
Areas
Area 0 "Backbone"
Area Border Routers
Area ID (32-bit)
OSPF Route Types
Inter-Area Routes
Intra-Area Routes
Discontiguous Networks
Virtual Links
:warning:
Link-State Announcement
Type 1 - Router LSA
Type 2 - Network LSA
Type 3 - Summary LSA
show ip ospf database
:recycle:
OSPF Path Selection
Intra Area
Inter Area
External Routes
Summarization
:check:
area
area-id
range network
subnet-mask
cost
:red_cross:
Route Filtering
Filtering with summarization
+
not-advertise
Area Filtering
Inbound/Outbound LSA Filter
To another area
area
area-id
filter-list prefix
prefix-filter
Local OSPF Filtering
Inbound distribute list prior RIB installation