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What are the OSPF network types?

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What are the OSPF network types?

OSPF network types

  • Broadcast—By default, OSPF considers the network type as broadcast. On a broadcast network, hello, LSU, and LSAck packets are multicast to 224.0.
  • NBMA—OSPF packets are unicast on an NBMA network.
  • P2MP—No link is P2MP type by default.
  • P2P—On a P2P network, OSPF packets are multicast to 224.0.

Is OSPF Cisco proprietary?

OSPF (Open Shortest Path First) is perhaps the most popular link state routing protocol. It is an open standard so it can be run on routers produced by different vendors, which is in contrast to EIGRP, a Cisco proprietary protocol that can be run only on Cisco devices.

How many types of OSPF are there?

LSA Type 4: Summary ASBR LSA. LSA Type 5: Autonomous system external LSA. LSA Type 6: Multicast OSPF LSA. LSA Type 7: Not-so-stubby area LSA.

Which is not a type of OSPF network?

Explanation: Query packet is NOT an OSPF packet type. Which multicast address does the OSPF Hello protocol use? Explanation: 224.0.

What is OSPF and its LSA types?

LSA Type 1: OSPF Router LSA. LSA Type 7: OSPF Not So Stubby Area (NSSA) External LSA. LSA Type 8: OSPF External Attributes LSA (OSPFv2) / Link Local LSA (OSPFv3) LSA Type 9: OSPF Link Scope Opaque (OSPFv2) / Intra Area Prefix LSA (OSPFv3)

What are five types of LSA packets in OSPF?

6 Types of OSPF LSA

  • Type1 is a Router LSA.
  • Type2 is a Network LSA.
  • Type3 is a Network summary LSA.
  • Type4 is the ASBR summary.
  • Type5 is an external summary.
  • Type7 is therefore written to the OSPF standard.
  • Learn More:

Which OSPF network type uses a Dr?

Broadcast network type
The Broadcast network type is the default for an OSPF enabled Ethernet interface. The Broadcast network type requires that a link support Layer 2 Broadcast capabilities. The Broadcast network type has a 10 second hello and 40 second dead timer. An OSPF Broadcast network type requires the use of a DR/BDR.

What is OSPF networking?

Open Shortest Path First (OSPF) is a link-state routing protocol that was developed for IP networks and is based on the Shortest Path First (SPF) algorithm. In an OSPF network, routers or systems within the same area maintain an identical link-state database that describes the topology of the area.

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