Overview
31-2 OSPFv3 Configuration
LSA formats are changed, and the type 3 and 4 summary LSAs are renamed “inter-area-prefix”
and “inter-area-router” LSAs. Also note that OSPFv3 LSA identifiers contain no addressing
semantics. LSA scope is generalized to link, area, and AS scope. OSPFv3 specifies the processing
of unsupported LSAs. Unsupported LSAs are maintained in the database and flooded according
to scope. In OSPFv3, routers with 100 or more interfaces generate more than one router LSA. A
new link LSA has been created. Addresses in LSAs are specified as [prefix, prefix length].
Area ID and Router ID remain 32 bit identifiers. OSPFv3 identifies Neighbors by router ID instead
of the interface address used in OSPFv2.
Note that both OSPFv3 and OSPFv2 can be enabled and run on the Enterasys C3.
Default Conditions
The following table lists the default OSPFv3 conditions.
Condition Default Value
IPv6 OSPF Disabled
IPv6 OSPF cost 10
IPv6 OSPF dead-interval 40 seconds
IPv6 OSPF hello-interval 10 seconds
IPv6 OSPF mtu-ignore Enabled
IPv6 OSPF network Broadcast
IPv6 OSPF priority 1
IPv6 OSPF retransmit-interval 4
IPv6 OSPF transmit-delay 1
Area stub no-summary Enabled
Area virtual-link dead-interval 40
Area virtual-link hello-interval 10
Area virtual-link retransmit-interval 5
Area virtual-link transmit-delay 1
Default-information originate Metric — unspecified
Type — 2
Distance OSPF Intra — 8
Inter — 10
Type-1 — 13
Type-2 — 50
Administrative mode of OSPF Enabled
Exit-overflow-interval 0
External-lsdb-limit -1
Maximum-paths 4
Redistribute Metric — unspecified
Type — 2
Tag — 0
Trapflags Enabled
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