OSPF Flashcards

Front

OSPFv3 Address Families

Back

Supports both IPv4 and IPv6 within a single OSPFv3 process.

Front

Link-State Advertisement (LSA)

Back

A packet that contains routing and topology information shared between OSPF routers.

Front

Router ID

Back

A unique 32-bit identifier assigned to an OSPF router, typically based on the highest IP address or manually configured.

Front

Designated Router (DR)

Back

A router elected on a multi-access network to reduce OSPF traffic and manage link-state updates.

Front

Backup Designated Router (BDR)

Back

A router that takes over if the DR fails, ensuring redundancy in OSPF networks.

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Down State

Back

The initial OSPF neighbor state where no Hello packets have been received.

Front

Init State

Back

A state where a router has received a Hello packet but has not established a bidirectional relationship.

Front

Two-Way State

Back

A state where routers establish bidirectional communication and elect the DR and BDR.

Front

ExStart State

Back

The stage where routers negotiate the master-slave roles for database exchange.

Front

Exchange State

Back

Routers exchange Database Descriptor (DBD) packets containing summary information of LSAs.