Skip Navigation Links
Exit Print View
| Sun Ethernet Fabric Operating System ### OSPFv3 Administration Guide

Search Scope:

- This Document
- Entire Library

## Configure NSSA Type-7/-5 Conversion

See NSSA Type-7/-5 Conversion Topology for the NSSA Type-7/-5 conversion topology created in this example.

1. Configure the interfaces with their corresponding IPv6 address.

   See IPv6 Example Topology Interface and Host Addresses.

2. Configure OSPFv3 by enabling OSPFv3 routing protocol in `VLAN 2` (area `0.0.0.2`) on SEFOS9 (router ID `10.0.0.9`).

       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# router-id  10.0.0.9
       SEFOS(config-router)# ASBR Router
       SEFOS(config-router)# redistribute static
       SEFOS(config-router)# exit
       SEFOS(config)# interface vlan 2
       SEFOS(config-if)# ipv6 ospf area 0.0.0.2
       SEFOS(config-if)# exit

3. Configure the area as an NSSA.

       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# area 0.0.0.2 nssa
       SEFOS(config-router)# end

4. Enable OSPFv3 routing protocol in `VLAN 2` (area `0.0.0.2`) on SEFOS2 (router ID `10.0.0.2`).

       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# router-id  10.0.0.2
       SEFOS(config-router)# exit
       SEFOS(config)# interface vlan 2
       SEFOS(config-if)# ipv6 ospf area 0.0.0.2
       SEFOS(config-if)# exit
       SEFOS(config)# interface vlan 11
       SEFOS(config-if)# ipv6 ospf area 0.0.0.0
       SEFOS(config-if)# exit

5. Configure area `0.0.0.2` as an NSSA.

       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# area 0.0.0.2 nssa
       SEFOS(config-router)# exit

6. Enable OSPFv3 routing protocol on `VLAN 11` (area `0.0.0.0`) on SEFOS1 (router ID `10.0.0.1`).

       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# router-id  10.0.0.1
       SEFOS(config-router)# exit
       SEFOS(config)# interface vlan 11
       SEFOS(config-if)# ipv6 ospf area 0.0.0.0
       SEFOS(config-if)# exit
       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# end

7. Configure the static route.

   Add a static route to `4444::/96` through `VLAN 1`, where the IPv6 address for `VLAN 1` on SEFOS9 is `3333::2222:0:1/96`, with a next hop of `3333::2222:0:10/96`.

       SEFOS(config)# ipv6 route 4444:: 96 3333::2222:0:10
       SEFOS(config)# exit

8. View the Type-7 and Type-5 LSA. By default the P-bit will be in clear state. Type-7 LSAs will be converted into a Type-5 LSA.

   - In SEFOS9, type.

         SEFOS# show ipv6 ospf database nssa detail

         Age: 42  Seconds            LS Type: Type-7 Lsa
         Link State Id: 0.0.0.0      Adv Rtr Id: 10.0.0.2
         Sequence: 0x80000002        Checksum: 0x0d20    Length: 28
         Metric: 0x1
         Metric Type: Ext Type1      Prefix Length: 0             Prefix Options: 0x00
         Referenced LS Type: 0
         Address Prefix: ::10:10f8:5830:300:e450
         Fw Address Prefix: 3ddf:c7e8:3ddf:c738:ff4:324:3d50:10
         External Route Tag: 0

         Age: 0   Seconds            LS Type: Type-7 Lsa
         Link State Id: 0.0.0.1      Adv Rtr Id: 10.0.0.9
         Sequence: 0x80000001        Checksum: 0xe6e5    Length: 56
         Metric: 0xa
         Metric Type: Ext Type2      Prefix Length: 96            Prefix Options: 0x08
         Referenced LS Type: 0
         Address Prefix: 4444::300:e450

   - In SEFOS2, type.

         SEFOS# show ipv6 ospf database nssa detail

         Age: 0   Seconds            LS Type: Type-7 Lsa
         Link State Id: 0.0.0.0      Adv Rtr Id: 10.0.0.2
         Sequence: 0x80000002        Checksum: 0x0d20    Length: 28
         Metric: 0x1
         Metric Type: Ext Type1      Prefix Length: 0             Prefix Options: 0x00
         Referenced LS Type: 0
         Address Prefix: ::10:10f8:5920:300:2450
         Fw Address Prefix: 3621:828:3621:778:ff4:324:fe4:2988
         External Route Tag: 0

         Age: 3   Seconds            LS Type: Type-7 Lsa
         Link State Id: 0.0.0.1      Adv Rtr Id: 10.0.0.9
         Sequence: 0x80000001        Checksum: 0xe6e5    Length: 56
         Metric: 0xa
         Metric Type: Ext Type2      Prefix Length: 96            Prefix Options: 0x08
         Referenced LS Type: 0
         Address Prefix: 4444::300:2450

   - In SEFOS1, type.

         SEFOS# show ipv6 ospf database as-external detail

         Age: 3   Seconds            LS Type: External Lsa
         Link State Id: 0.0.0.1      Adv Rtr Id: 10.0.0.2
         Sequence: 0x80000001        Checksum: 0x0bb2    Length: 56
         Metric Type: Ext Type2      Metric: 0xa
         Prefix Length: 96            Prefix Options: 0x00
         Referenced LS Type: 0
         Addres Prefix: 4444::
         Fw Addres Prefix: 4444::fec0:0
         External Route Tag: 0

9. In SEFOS9, set the P-bit in the default Type-7 LSA generated by an NSSA internal ASBR.

       SEFOS(config)# ipv6 router ospf
       SEFOS(config-router)# no nssaAsbrDfRtTrans

10. Configure aggregation, if necessary.

        SEFOS(config-router)# area 0.0.0.0 summary-prefix 4444::64 translation disabled
        SEFOS(config-router)# exit

11. View the results in SEFOS1.

    Note - No external LSA is sent to `10.0.0.1`.

        SEFOS# show ipv6 ospf database as-external detail

Copyright © 2010, 2012, Oracle and/or its affiliates. All rights reserved. Legal Notices |