Re: OSPF quiz

I'm not sure I understand your issue.
If it is a non broadcast network for OSPF, OSPF will not do broadcast,
so the broadcast map is useless ?

-Carlos

Kaio Vilar @ 01/06/2011 10:00 -0300 dixit:
> Master,
>
> One question about OSPFv3.
>
> Why in NON-Broadcast, I need config "neighbor x.x.x.x", the command
> frame-relay map x.x.x.x BROADCAST not solve the problem about
> neighborhood?
>
> Regards,
> Kaio Vilar
>
> 2011/5/31, Carlos G Mendioroz <tron_at_huapi.ba.ar>:
>> As someone I respected put it many times, food for thought.
>> Great links Petr.
>> -Carlos
>>
>> Petr Lapukhov @ 31/05/2011 18:50 -0300 dixit:
>>> Carlos,
>>>
>>> It could be interesting to compare this behavior to the way other
>>> protocol treat 3rd party next-hops. Also, try figuring the process that
>>> OSPF uses when picking up an FA for NSSA prefixes. A while ago I wrote a
>>> few summaries on the 3rd party NHops processing in different routing
>>> protocols, hope it might be helpful still:
>>>
>>> http://blog.ine.com/2010/09/02/understanding-third-party-next-hop/
>>> http://blog.ine.com/2009/11/13/ospf-prefix-filtering-using-forwarding-address/
>>>
>>> Look into that NSSA FA selection process, it might be amusing :)
>>>
>>> Regards,
>>>
>>> --
>>> Petr Lapukhov, petr_at_INE.com
>>> CCIE #16379 (R&S/Security/SP/Voice)
>>> CCDE #20100007
>>>
>>> Internetwork Expert, Inc.
>>> http://www.INE.com
>>> Toll Free: 877-224-8987
>>> Outside US: 775-826-4344
>>>
>>> 2011/5/31 Carlos G Mendioroz <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>>
>>>
>>> Just wanted to share a small quiz. Try to answer w/o labbing this up.
>>>
>>> Topology: Central site with a firewall connected by a lan to two
>>> borders (B1 and B2) using HSRP for DG (FHRP). Borders run serial
>>> links to
>>> branches. OSPF single area in the WAN.
>>>
>>> B1 and B2 have a static route to an internal network X poining to the
>>> FW. B1 redidtributes X with metric 20 metric type 1. B2 does the same
>>> thing with metric 50.
>>>
>>> At a branch,, how many routes do you see, assuming same bandwidth on
>>> both serial links ?
>>>
>>> --
>>> Carlos G Mendioroz <tron_at_huapi.ba.ar <mailto:tron_at_huapi.ba.ar>>
>>> LW7 EQI Argentina
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
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>> --
>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
>>
>>
>>
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>>
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>>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net