Thank you to everyone for your responses. You definately cleared up my confusion.
Thanks again,
Scott
Jaeheon Yoo wrote:
> Hi, Scott.
>
> To monitor ospf adjancency or something like that, we usually have two
> routers connected to each other via Ethernet interfaces in a normal
> lab environment. In this case, before adjacency is built, old router
> LSA lists the Ethenet interface's network as Link Type 3 - "connection
> to a stub network" because no neighbor's found, but after adjacency
> built, new router LSA lists it as Link Type 2 - "connection to a
> transit network".
>
> You can check this with "show ip ospf database router" before and
> after ospf adjacency built.
>
> http://www.isi.edu/in-notes/rfc2328.txt pp.207-208
>
> Hope this helps
>
> Regards
>
> Jaeheon
>
> On 10 Jan 2001 01:08:17 -0500, [EMAIL PROTECTED] (scott) wrote:
>
> >Dear OSPF gurus:
> >
> >I am probably missing a very basic point here as I am somewhat new to
> >OSPF. I have been debugging ospf adjacency, ospf events, ospf flood
> >plus some others. After routers become adjacent, the flooding process
> >starts. What I have noticed is that right after routers become
> >adjacent, they create a new router LSA and add one to the sequence
> >number. (The DR also sends out a network LSA.)
> >
> >My question is this: Does each router create this new instance of the
> >LSA to trigger the flooding process itself or is there some other reason
> >why a "new" LSA is created? *Why not just send out the original LSA to
> >begin the flooding process?* Doesn't sending out a new LSA cause
> >routers to recalculate their routing tables when, in fact, they just
> >calculated them moments ago when they became adjacent using the original
> >LSA?
> >
> >I understand the need for the flooding process. I don't understand the
> >need for a new LSA.
> >
> >Thanks in advance,
> >
> >Scott Chapin
> >
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