From: Andy Hogard (andyhogard@gmail.com)
Date: Sat Dec 13 2008 - 08:52:54 ARST
I would tweak the AD of ospf beyond 200 for those specific routes, numerous
ways are available in ospf for changing the AD. You can also tweak iBGP
metric as well and make it lower than 120 for just those two. Although
latter is not recommended.
I would use a route-map. Cant recollect the syntax, as I have not got lab
access. But it sure is simple and very do-able.
Dont frett it happens to all of us.
Regards,
Andy.
On Sat, Dec 13, 2008 at 4:18 PM, olumayokun fowowe <olumayokun@gmail.com>wrote:
> Hello Andy,
>
> Thanks, 'gues I have forgotten that. Supposing I want to advertise the
> loopbacks in IGP as well as with the network command in my BGP without RIB
> failure, what do you advise? How do I twick the admin distance, from my IGP
> or from BGP?
>
> 'Mayokun
>
>
> On 12/13/08, Andy Hogard <andyhogard@gmail.com> wrote:
>>
>> Hmm,
>>
>> Well the reason for rib failed routes is this:
>>
>> EBGP AD is 20
>> IBGP AD is of 200
>>
>> Any other IGP falls between 30 and 200, meaning OSPF, RIP ..et all. Hence
>> what rib failed routes indicate is that the since there exists a source
>> which is more relaible than Ibgp advertisments, the routes will be marked as
>> rib failed routes in the BGP table, and in the routing tables for these rib
>> failed prefixes you will see routes via other IGP. :)
>>
>> To fix this one must not advertise these routes, in an AS via BGP .. I
>> mean local links within an AS are not advertised in BGP, but yes if you want
>> to send these out of the AS sure use BGP. Mind you rib failed routes do not
>> indicate that they wont get advertised to EBGP peers.
>>
>>
>> HTH,
>> Andy.
>>
>> On Sat, Dec 13, 2008 at 2:40 PM, olumayokun fowowe <olumayokun@gmail.com>wrote:
>>
>>> Hello Guys,
>>>
>>> I have a question here. RouterA is peering with RouterB and RouterC with
>>> RouterA being the route-reflector. I have advertised the loopbacks( /32)
>>> on
>>> my A and B routers to bgp with the network command but I keep having them
>>> with rib failure in my bgp table ( r>ix.x.a.a/32
>>>
>>> r>ix.x.b.b/32
>>>
>>> Please, what is the likely cause of this and how do I resolve the
>>> situation?
>>>
>>> Thanks all,
>>>
>>> 'Mayokun.
>>>
>>>
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>>
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>
>
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