OSPF hello packet question

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In reference to the above drawing, which routers are going to send OSPF hello packet and to whom?

My understanding; Ospf hello packet is used to build and maintain adjacencies.

RTA will send to and  receice from RTB

RTB will be sending and recieving from both RTA and RTC

RTC will send to and recieve from RTB

In any case will hello packet be used between RTA and RTC (I mean how are LSA sent, do they use Hello Protocol or are they just a regular IP packet)

 

Thanks in advance....

Comments

  • Only Router RTA and RTB will send hello to eachother...and RTB and RTC will send hello to each other RTA and RTC will not send hello packets to each other.and the router comes up 1st sill start sending hello...this process is like master and slave.The router who start sending 1st will become master and other will be slave.only directlly connected routers sends hellos to each other.

  • If you are asking this question, I'm thinking that a little research may be necessary about HOW ospf hello packets are sent.  And that little tidbit may well answer your question for you.

    HTH,

    Scott







    ----- Original Message -----
    From: "Ray1234" <[email protected]>
    Sent: Mon, March 30, 2009 15:52
    Subject: [CCIE R&S] OSPF hello packet question


    In reference to the above drawing, which routers are going to send OSPF hello packet and to whom?

    My understanding; Ospf hello packet is used to build and maintain adjacencies.

    RTA will send to and  receice from RTB

    RTB will be sending and recieving from both RTA and RTC

    RTC will send to and recieve from RTB

    In any case will hello packet be used between RTA and RTC (I mean how are LSA sent, do they use Hello Protocol or are they just a regular IP packet)

     

    Thanks in advance....



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