From: Henry D. (henryd31@xxxxxxxx)
Date: Sun Apr 29 2001 - 20:39:22 GMT-3
OSPF will still advertise the interface marked passive. You're right on the
money, it will not form adjacencies on the interface though.
This negates your question about the need for this type of interface,
as you should be able to figure out the instances where this type of setup
is desirable.
Thanks.
----- Original Message -----
From: "Niall El-Assaad" <nelassaa@cisco.com>
To: <ccielab@groupstudy.com>
Sent: Sunday, April 29, 2001 6:49 PM
Subject: What does passive-interface on OSPF really do?
> Hi,
>
> When you configure passive-interface for OSPF what does it really do?
>
> The docs say it is for use on simplex ethernet interfaces, but I don't
> really understand what its trying to say.
>
> If you use it is doesn't send hellos. I understand that.
> It therefore won't establish adjacencies. I understand that.
>
> Will it advertise the interface (the one marked passive) in a Type 1 LSA?
> Is there really a need for it if it doesn't, as the network statement
allows
> you to specify precisely what interfaces you want to run OSPF on.
>
> cheers,
>
> niall
>
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