Re: OSPF : LSA

Hi Narbik,

yes indeed .. It was informative and as you mentioned such scenarios we
can hardly find in any books ...

cheers,

On Sun, Sep 26, 2010 at 1:17 PM, Narbik Kocharians <narbikk_at_gmail.com>wrote:

> 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
Received on Sun Sep 26 2010 - 14:52:54 ART