Re: OSPF : LSA

I may do a complete VoD for Filtering in OSPF, there are LOTS of other
behaviours and technics that are NOT covered in ANY book. Let me see if i
have time and i will put something together. Would you guys like this kind
of presentation?

On Sun, Sep 26, 2010 at 2:27 PM, kamal negi <kamalnegi.81_at_gmail.com> wrote:

> Hi Narbik,
>
> Thanks a lot for sharing this VoD . It helped a lot ...
>
> Carlos :
>
> It's exactly happening same way ..
>
> In above topology if we have static route for X.X.X.X/32 on A2, its type -3
> LSA is removed from Area 12 .. ( from Area 0 to other Area)
>
> however in second scenario if we have route on R3 (From other Area to Area
> 0 ), LSA -3 for X.X.X.X remains intact.
>
>
> Thanks,
> CCIE R&S
>
> On Sun, Sep 26, 2010 at 2:14 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:
>
>> Wow, nice to know.
>>
>> You state that <area 0> to <other area> route propagation is done via
>> redistribution, and so the route has to be in the RIB "owned by" OSPF to
>> be inserted in some non 0 area.
>>
>> The other way around, from <other area> to <area 0>, follows some
>> internal mechanism so it's RIB independant.
>>
>> Thanks,
>> -Carlos
>>
>> Narbik Kocharians @ 25/09/2010 12:58 -0300 dixit:
>> > Your question is NOT basic at all, actually it s pretty advanced,
>> because I
>> > have NOT seen it in any Cisco Press Workbook, or any workbook for that
>> > matter, but I have this scenario plus more in my NEW Boot Camp 2.0
>> > Workbook.
>> >
>> >
>> >
>> > Please download this VoD and watch it, it's ONLY 10 - 15 minutes. I have
>> > explained it purely from behaviors perspective.
>> >
>> >
>> >
>> >
>> http://www.micronicstraining.com/classes/index.php?dispatch=products.view&pro
>> > duct_id=29815
>> >
>> >
>> >
>> > BTW, you don t need to login or register and it s totally FREE.
>> >
>> >
>> > On Sat, Sep 25, 2010 at 7:57 AM, kamal negi <kamalnegi.81_at_gmail.com>
>> wrote:
>> >
>> >> Experts, I have below OSPF topology :
>> >>
>> >>
>> >> A1 -----A2--------------A3------A4
>> >>
>> >> A1 and A2 (Area 12)
>> >> A2 and A3 (Area 0 )
>> >> A3 and A4 (Area 34)
>> >>
>> >> ABR : A2,A3
>> >> Area 12 , Area 34 are regular area
>> >>
>> >> A4 is originating prefix X.X.X.X/32 from Area 4.
>> >>
>> >> On A2 , I have type -3 LSA for X.X.X.X in Area 0 and Area 12
>> >> On A 1 , I have type -3 LSA for X.X.X.X in Area 12
>> >>
>> >> Now If I configure static route for X.X.X.X/32 on A2, Type-3 LSA for
>> >> X.X.X.X gets removed from Area 12.. Any particular reason for this
>> behavior
>> >> ? If we have better route, why it stops this LSA into particular area
>> ???
>> >>
>> >> Pardon my ignorance if this question is basic ...
>> >>
>> >>
>> >> Blogs and organic groups at http://www.ccie.net
>> >>
>> >> _______________________________________________________________________
>> >> Subscription information may be found at:
>> >> http://www.groupstudy.com/list/CCIELab.html
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> > Narbik Kocharians
>> > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>> > www.MicronicsTraining.com
>> > Sr. Technical Instructor
>> > YES! We take Cisco Learning Credits!
>> > Training And Remote Racks available
>> >
>> >
>> > Blogs and organic groups at http://www.ccie.net
>> >
>> > _______________________________________________________________________
>> > Subscription information may be found at:
>> > http://www.groupstudy.com/list/CCIELab.html
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>>
>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>
>
>

-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining.com
Sr. Technical Instructor
YES! We take Cisco Learning Credits!
Training And Remote Racks available
Blogs and organic groups at http://www.ccie.net