What is Type 5 LSA OSPF?

Fun with OSPF Type 5 LSAs. OSPF creates a type 5 LSA for a subnet that is injected into OSPF from an external source. To inject the route, the autonomous System Border Router (ASBR), which is by definition a router that connects to a non-OSPF routing domain, uses the redistribute command.Click to see full answer. Similarly, what are LSA types in OSPF?Before we begin, let’s take a quick look at the different type of OSPF LSA packets we’ll cover: 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)Secondly, what is Type 7 LSA OSPF? LSA Type 7 (NSSA External LSA) Type 7 LSA allow injection of external routes throug Not-so-Stubby-Areas (NSSA). Generally external routes are advertised by type 5 LSA but they are not allowed inside any stub area. That’s why Type 7 LSA is used, to trick OSPF. Also know, what is Type 4 LSA OSPF? LSA Type 4 is described as a ASBR Summary LSA. It is generated by an ABR. It is flooded from area 0 into a non-transit area and vice versa. It represents the ABR’s reachability to ASBRs in other areas where in it includes cost but hides the ABR’s actual path to the destination.What is LSA and LSU in OSPF?Link State Update (LSU) packets are OSPF packet Type 4. These packets implement the flooding of LSAs. Each LSA contains routing, metric and topology information to describe a portion of OSPF network. The local router advertises LSA within an LSU packet to its neighboring routers.

Leave a Reply

Your email address will not be published. Required fields are marked *