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| Sun Ethernet Fabric Operating System ### OSPF Administration Guide

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## Examine the Configuration Details in SEFOS2

Examine the two NSSA external LSAs, one for `90.0.0.0/8`, matching the summary range configured, and the other for the default external route in the NSSA area.

Another external LSA is generated in the area `0.0.0.0` corresponding to the nssa-external LSA `90.0.0.0/8`.

- Type.

      SEFOS# show ip ospf database nssa-external

      OSPF Router with ID (10.4.0.2)
                        NSSA External Link States (Area 0.0.0.2)
                        ----------------------------------------------
      LS age             : 300
      Options            : (No ToS Capability, DC)
      LS Type            : NSSA External Link
      Link State ID      : 90.0.0.0
      Advertising Router : 10.2.2.9
      LS Seq Number      : 0x80000001
      Checksum           : 0xc84f
      Length             : 36

                     NSSA External Link States (Area 0.0.0.2)
                        ----------------------------------------------
      LS age             : 300
      Options            : (No ToS Capability, DC)
      LS Type            : NSSA External Link
      Link State ID      : 0.0.0.0
      Advertising Router : 10.4.0.2
      LS Seq Number      : 0x80000002
      Checksum           : 0x120
      Length             : 36

      SEFOS# show ip ospf database external

      OSPF Router with ID (10.4.0.2)
                        AS External Link States
                        -----------------------
      LS age             : 0
      Options            : (No ToS Capability, DC)
      LS Type            : AS External Link
      Link State ID      : 90.0.0.0
      Advertising Router : 10.4.0.2
      LS Seq Number      : 0x80000001
      Checksum           : 0x49fd
      Length             : 36
      Network Mask       : 255.0.0.0
      Metric Type        : 0x80
      Metric             : 10
      Forward Address    : 10.2.2.9
      Externel Route Tag : 0

      SEFOS# show ip ospf route

      OSPF Process Routing Table
      Dest/Mask                  TOS NextHop/Interface Cost Rt.Type   Area
      ---------                  --- -------/--------- ---- -------   ----
      10.2.2.0/255.255.255.0     0   0.0.0.0/vlan2     1    IntraArea 0.0.0.2
      10.4.0.0/255.255.0.0       0   0.0.0.0/vlan1     1    IntraArea 0.0.0.0
      90.0.0.0/255.0.0.0         0   10.2.2.9/vlan2    10   Type2Ext  0.0.0.2

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