Lenovo Flex System Fabric CN4093, Application Manual

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CN4093 Application Guide for N/OS 8.4
Other Internal Improvements
OSPFv3 has numerous improvements that increase the protocol efficiency in
addition to supporting IPv6 addressing. These improvements change some of the
behaviors in the OSPFv3 network and may affect topology consideration, but have
little direct impact on configuration. For example:
 Addressing fields have been removed from Router and Network LSAs.
 Flexible treatment of unknown LSA types to make integration of OSPFv3 easier.
 Interface network type can be specified using the command:
CN 4093(config-ip-if)#
ipv6 ospf network {broadcast|
|non-broadcast|point-to-multipoint|point-to-point}
 For an interface network type that is not broadcast or NBMA, link LSA
suppression can be enabled so link LSA is not originated for the interface. Use
the command: CN 4093(config-ip-if)#
ipv6 ospf linklsasuppress
OSPFv3 Limitations
Enterprise NOS 8.4 does not currently support the following OSPFv3 features:
 Multiple instances of OSPFv3 on one IPv6 link.
OSPFv3 Configuration Example
The following example depicts the OSPFv3 equivalent configuration of
“Example 3: Summarizing Routes” on page 488 for OSPFv2.
In this example, one summary route from area 1 (stub area) is injected into area 0
(the backbone). The summary route consists of all IP addresses for the 36.:0/32
portion of the 36::0/56 network except for the routes in the 36::0/8 range.
Figure 54.
Summarizing Routes
Note:
You can specify a range of addresses to prevent advertising by using the
hide option. In this example, routes in the 36::0/8 range are kept private.
IF 3
10::1
IF 4
36::1
10::0/56
Network 36::0/56
Network
36::0/32
(- 36::0/8)
Backbone Stub Area
Summary Route
ABR
Area 0
(0.0.0.0)
Area 1
(0.0.0.1)