Re: understanding redistribution

Hey where's your tagging & community lists to prevent double redistribution ;)

Brian one thing when we enable tagging to prevent the original routes being re-learnt back in I never seem to get any hits on the route-maps in bytes....anyone seen this?

Real gear btw

--
BR
Tony
Sent from my iPad
On 9 May 2013, at 19:47, Brian Dennis <bdennis_at_ine.com> wrote:
> If you redistribute protocol X into protocol Y, protocol X's routes can't
> go into protocol Z from protocol Y.  You need to also redistribute
> protocol X directly into protocol Z to get protocol X's routes into
> protocol Z.  This may not be easy to follow but it's important to
> understand.
> 
> The reason behind this is that redistribution is done from the RIB
> (routing table) and not done directly between routing protocols.  If you
> redistribute protocol X into protocol Y then Y will get protocol X's
> dynamic routes that are in the RIB (show ip route X) and for IPv4, by
> default, the connected interfaces that protocol X is enabled on (i.e.
> network statement, ip ospf 1 area 0, etc)
> 
> So in your case if you didn't redistribute say static into BGP but are
> redistributing static into EIGRP, BGP will not get the static routes that
> are redistributed into EIGRP when EIGRP is redistributed into BGP.
> 
> -- 
> Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
> bdennis_at_ine.com
> 
> INE, Inc.
> http://www.INE.com
> 
> 
> 
> 
> On 5/9/13 11:14 AM, "Cisco Fanatic" <ebay_products_at_hotmail.com> wrote:
> 
>> I am not sure if I understand this. If we are mutually redistributing
>> between
>> say EIGRP and BGP does it matter which protocol we redistribute connected
>> and
>> static routes in? 
>> 
>> router eigrp 1000
>> redistribute connected
>> redistribute bgp 65001 metric 15000 5 255 1 4470 router bgp 65001
>> redistribute static
>> redistribute eigrp 1000
>> ******** OR **************
> 
>> router eigrp 1000
>> redistribute static
>> redistribute bgp 65001 metric 15000 5 255 1 4470 router bgp 65001
>> redistribute connected
>> redistribute eigrp 1000
>> -Yuri
>> 
>> 
>> Blogs and organic groups at http://www.ccie.net
>> 
>> _______________________________________________________________________
>> Subscription information may be found at:
>> http://www.groupstudy.com/list/CCIELab.html
> 
> 
> Blogs and organic groups at http://www.ccie.net
> 
> _______________________________________________________________________
> Subscription information may be found at: 
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net