Examine the Route Information and Virtual Links in SEFOS1

1. Examine the route summarization information in SEFOS1.

   SEFOS# show ip ospf area-range
    
   Display of Summary addresses for Type3 and Translated Type5
    
   OSPF Summary Address Configuration Information
   ----------------------------------------------
   Network     Mask        LSAType Area           Effect          Tag       
    -------     ----        ------- ----           ------          ---       
    10.10.0.0  255.255.0.0  Summary 0.0.0.6        Advertise       150746304
   

2. Examine the virtual link and the status of the link in SEFOS4.

   SEFOS# show ip ospf virtual-links
    
   Virtual Link to router 10.7.0.6, Interface State is POINT_TO_POINT
     Transit Area 0.0.0.3
     Transmit Delay is 1 sec, Neighbor State FULL
     Timer intervals configured, Hello 10, Dead 60, Retransmit 5
    
   Virtual Link to router 10.8.0.5, Interface State is POINT_TO_POINT
     Transit Area 0.0.0.3
     Transmit Delay is 1 sec, Neighbor State FULL
     Timer intervals configured, Hello 10, Dead 60, Retransmit 5