R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

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• Inter-Area-Prefix LSA—Type-3 LSA, originated by ABRs and flooded throughout the LSA's

associated area. Each Inter-Area-Prefix LSA describes a route with IPv6 address prefix to a

destination outside the area, yet still inside the AS.

• Inter-Area-Router LSA—Type-4 LSA, originated by ABRs and flooded throughout the LSA's

associated area. Each Inter-Area-Router LSA describes a route to ASBR.

• AS External LSA—Type-5 LSA, originated by ASBRs, and flooded throughout the AS, except stub

and NSSA areas. Each AS External LSA describes a route to another AS. A default route can be

described by an AS External LSA.

• NSSA LSA—Type-7 LSA, originated by ASBRs in NSSAs and flooded throughout a single NSSA.

NSSA LSAs describe routes to other ASs.

• Link LSA—Type-8 LSA. A router originates a separate Link LSA for each attached link. Link LSAs

have link-local flooding scope. Each Link LSA describes the IPv6 address prefix of the link and

Link-local address of the router.

• Intra-Area-Prefix LSA—Type-9 LSA. Each Intra-Area-Prefix LSA contains IPv6 prefix information on

a router, stub area, or transit area information, and has area flooding scope. It was introduced

because Router LSAs and Network LSAs contain no address information.

• Grace LSA—Type-11 LSA, generated by a GR restarter at reboot and transmitted on the local link.

The GR restarter describes the cause and interval of the reboot in the Grace LSA to notify its

neighbors that it performs a GR operation.

Protocols and standards

• RFC 5340, OSPF for IPv6

• RFC 2328, OSPF Version 2

• RFC 3101, OSPF Not-So-Stubby Area (NSSA) Option

• RFC 5187, OSPFv3 Graceful Restart

OSPFv3 configuration task list

Tasks at a

lance

(Required.) Enabling OSPFv3

(Optional.) Configuring OSPFv3 area parameters:

• Configuring a stub area

• Configuring an NSSA area

• Configuring an OSPFv3 virtual link

(Optional.) Configuring OSPFv3 network types:

• Configuring the OSPFv3 network type for an interface

• Configuring an NBMA or P2MP neighbor