Re: Question about injecting default route by ASBR

Acee Lindem <acee@REDBACK.COM> Tue, 20 August 2002 22:12 UTC

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Date: Tue, 20 Aug 2002 18:13:48 -0400
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From: Acee Lindem <acee@REDBACK.COM>
Subject: Re: Question about injecting default route by ASBR
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Mani Devarajan wrote:

> Hi all,
>
> How important is for ASBR to inject a default route into
> AS. Is it MUST/OPTIONAL. RFC 2328 doesnt say its MUST
> or NOT.


Hello Mani,

In general, RFC 2328 doesn't deal with origination of external
defaults or the redistribution (aka, import) of routes from
other protocols. However, it does describe the composition of
an OSPF AS external LSA for a default route.

Most OSPF implementations provide the capability to
originate a default route under configuration control.


>
> Does live network needs this option. And whether it make
> any difference in reducing the traffic with in AS.


It depends on the situation. In any case, this should be a
configurable option.


>
> Thanks & Regards,
> <Mani
>
>


--
Acee