H3C Technologies H3C S7500E Series Switches - Manual (Page 90)

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For more information about BFD, see BFD Configuration in the High Availability Configuration Guide.
Bidirectional forwarding detection (BFD) provides a single mechanism to quickly detect and monitor
the connectivity of links between OSPF neighbors, thus reducing network convergence time.
Protocols and Standards
z RFC 1765: OSPF Database Overflow
z RFC 2328: OSPF Version 2
z RFC 3101: OSPF Not-So-Stubby Area (NSSA) Option
z RFC 3137: OSPF Stub Router Advertisement
z RFC 3630: Traffic Engineering Extensions to OSPF Version 2
z RFC 4811: OSPF Out-of-Band LSDB Resynchronization
z RFC 4812: OSPF Restart Signaling
z RFC 4813: OSPF Link-Local Signaling
OSPF Configuration Task List
An OSPF routing domain has different types of routers, such as intra-area routers, ABR, and ASBR.
OSPF can work normally only after being enabled on a router, regardless of the router’s type. On an
OSPF-enabled router, you can use the default values of parameters, such as the transmit interval of
OSPF packets, LSA delay timer, and SPF calculation interval, or configure them as required.
Network planning is needed before OSPF configuration on routers. The configurations for routers in an
area are performed on the area basis. Wrong configurations may cause communication failures, even
routing information block or routing loops between neighboring routers..
Complete the following tasks to configure OSPF:
Task Remarks
Enabling OSPF Required
Configuring a Stub Area
Configuring an NSSA Area Configuring OSPF Areas
Configuring a Virtual Link
Optional
Configuring the OSPF Network Type for an Interface as
Broadcast
Optional
Configuring OSPF
Network Types
Configuring the OSPF Network Type for an Interface as
NBMA
Optional