From: Hans (yyao@xxxxxxxxxxxx)
Date: Mon Dec 17 2001 - 15:56:40 GMT-3
Annu,
According to RFC and Cisco's application, ospf LSA 5 is only summarable on
ASBR. LSA 5 also will flood to all other areas except total stubby, there is
almost no control over it.
However, you can try to use NSSA ASBR to introduce the external routes and
NSSA ABR to sum it using area range. I did not have a chance to test it.
There might be problems with this method because area range might not work
with LSA 7.
I will try it and let you know the result.
Hans
----- Original Message -----
From: "Annu" <annu_roopa@yahoo.com>
To: "Bill Carter" <bcarter@family-net.net>
Cc: <ccielab@groupstudy.com>
Sent: Monday, December 17, 2001 11:25 AM
Subject: RE: OSPF External Routes Summarization
> Bill,
>
> I'm aware of this. Pl. go thro' my question
> completely.
> I want to summarise after having been redistributed.
>
> Anyway, thanx for ur reply.
>
> --- Bill Carter <bcarter@family-net.net> wrote:
> > On router10 under ospf summary-address x.x.x.x
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com
> > [mailto:nobody@groupstudy.com]On Behalf Of
> > Annu
> > Sent: Monday, December 17, 2001 9:43 AM
> > To: ccielab@groupstudy.com
> > Cc: annu_roopa@yahoo.com
> > Subject: OSPF External Routes Summarization
> >
> >
> > Group,
> >
> > Is there any way to Summarize External routes learnt
> > in OSPF on an ABR or any other router ? I know its
> > done only at ASBR. Here is what i want to do -
> >
> >
> > Area 1(R11)------R9-----R4------R10---(RIP)
> > area1 |<--area 0-->|
> >
> > I want the RIP routes with subnets to be summarized
> > at
> > R9 before going to R11 and its downstream routers.
> >
> > Is there any way at all or is it that I HAVE TO
> > SUMMARIZE AT R10 while redistributing with summary
> > address command.
> >
> >
> >
> > =====
> > Thanks in advance for ur time and replies.
> > Annu.
> >
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