OSPF(v2 and v3)

1.4 OSPF (v2 and v3) 1.4.a Adjacencies 1.4.b OSPFv3 address family support 1.4.c Network types, area types 1.4.d Path preference 1.4.e Operations 1.4.e (i) General operations 1.4.e (ii) Graceful shutdown 1.4.e (iii) GTSM (Generic TTL Security Mechanism) 1.4.f Optimization, convergence, and scalability 1.4.f (i) Metrics 1.4.f (ii) LSA throttling, SPF tuning 1.4.f (iii) Stub router 1.4.f (iv) Pref..