![]() ![]() Each LSA is used within specific boundaries of an OSPF network. LSA Types contained within an OSPF LSU packetĪs mentioned, OSPF currently supports 11 types of LSAs. The diagram below clearly shows how LSAs are contained within LSUs:įigure 1. The LSA payload varies in size according to the LSA type and the information it includes. Part 6 (This article) - OSPF LSA Types - Purpose and Function of Every OSPF LSA. LSA Type 11:OSPF AS (Autonomous System) Scope Opaque LSAīelow is a complete list of articles covering our OSPF Series:. ![]() LSA Type 10: OSPF Area Scope Opaque LSA.LSA Type 9: OSPF Link Scope Opaque (OSPFv2) / Intra Area Prefix LSA (OSPFv3).LSA Type 8: OSPF External Attributes LSA (OSPFv2) / Link Local LSA (OSPFv3).LSA Type 7: OSPF Not So Stubby Area (NSSA) External LSA.LSA Types - Quick Overviewīefore we begin, let’s take a quick look at the different type of OSPF LSA packets we’ll cover: In this article we’ll be diving deeper to analyse all eleven OSPF LSA Types using network network diagrams and examples to help understand when each LSA type is used and how they keep the OSPF network updated. We also saw the most common LSA packets found in OSPF networks. Our previous article explained the purpose of Link State Update (LSU) packets and examined the Link State Advertisement ( LSA) information contained within LSU packets. ![]()
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