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Forum Replies

  1. Hi,

    In your explanation about LSA type 5, you wrote :
    “Here you can see the type 5 external LSA in the LSDB. Keep in mind that router R2 and R3 both are in area 0.”

    But, in the design, we can see that there are in area 1 ?


  2. Hi Mohammed,

    Glad to hear you like it!


  3. Hello Brian

    Redistribution of E1 and E2 types is actually found within the realm of CCNP Route. Take a look at this Cisco link to see more.

    I hope this has been helpful!


  4. Hi Rene,

    I would like to know if I’ll be able to see in the show ip ospf database the type 4 LSA? I can’t seem to see it? All I can see is the router link, network link, summary link for inter-area and type 5 for redistributed routes into OSPF…


  5. Hi Network lessons team,

    Thanks for your topic, it helped me making sense about LSA operation. But acctually I’m having a little bits confuse about LSA Type 4 and LSA Type 5.
    In my point, I thought LSA Type 4 just only notice the router in difference area about ASBR router. But why it needs to know ASBR position? Because when ABR advertise LSA Type 5, it’s already having a Advertising Router information (it’s the ASBR IP), and router in other area can base on this field to choose next-hop.

    I hope that you can make sense to me. Thank you so much!

    Thinh Cao Minh

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