Layer 3 functions
9.3 OSPFv3 (IPv6)
SCALANCE XM-400/XR-500 Command Line Interface (CLI)
Configuration Manual, 11/2015, C79000-G8976-C252-10
497
This section describes the commands relevant for working with routing with OSPFv3.
Version 3 of OSPF is based on version 2 and is only used with IPv6. A large part of the
routing mechanisms was adopted. OSPFv3 is defined in the RFCs 2740 and 5340.
The following has not changed:
● The statuses that a router runs through to establish a connection to the neighbor router.
● The areas : Backbone, Stub Area, Totally Stubby Area, Not So Stubby Area (NSSA)
● The router types: Internal Router (IR), Area Border Router (ABR), Backbone Router (BR),
Autonomous System Area Border Router (ASBR), Designated Router (DR)
● The router ID, the area ID and the ID of the LSA are entered in the IPv4 address format:
x.x.x.x
The terms network or subnet are replaced by link.
The authentication was removed. Instead OSPFv3 uses IPsec, that is implemented in IPv6.
The neighbor routers are identified via the router ID.
The neighbor database (link state database - LSDB) is divided into different areas of
application:
● Link scope LSDB
Contains the link LSA
● Area scope LSDB
contains the following LSAs
– Router LSA
– Network LSA
– Inter-area prefix LSA
– Inter area router LSA
– Intra area prefix LSA
● AS scope LSDB
Contains the AS external LSA
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