Re: OSPF quiz

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
>>
>>
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>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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Received on Wed Jun 01 2011 - 10:00:08 ART