6. OSPF Neighbor States Flashcards
1
Q
What are the OSPF neighbor states?
A
- Down
- Attempt
- Init
- Two-Way
- ExStart
- Exchange
- Loading
- Full
2
Q
What occurs in the attempt state?
A
Hello for non-broadcasts
3
Q
What occurs in the init state?
A
Hello message sent
4
Q
What occurs in the two-way state?
A
Hello message received with ack of hello, bidirectional communication. DR/BDR election
5
Q
What occurs in the ExStart state?
A
DBD exchange for election and master/slave decided
6
Q
What occurs in the Exchange state?
A
DBD exchange with headers
7
Q
What occurs in the Loading state?
A
LSR and LSU send to each other
8
Q
What occurs in the Full state?
A
Full synced
9
Q
What is the difference between being OSPF neighbors or adjacent?
A
Adjacent is when routes are being exchanged
10
Q
What requirements must be met to form a neighborship
A
- RID unique
- Subnet
- MTU
- Area
- Hello/dead
