From: Noor.Yousuf@shell.com
Date: Wed Apr 23 2008 - 17:01:52 ART
Chris,
Thanks for looking into the issue, I did the same setup and my assumption is same. Yes, I know I can use redistribute static to make it work but I really need to understand why BGP has this behavior
Any cisco reference or document would be greatly appreciated.
Thanks,
Noor
-----Original Message-----
From: Chris McGuire [mailto:cmcguire@firstdigital.com]
Sent: woensdag 23 april 2008 18:03
To: Huan Pham; 'Andy Cole'; Yousuf, Noor S SITI-ITIBTAE;
ccielab@groupstudy.com
Subject: Re: bgp to ospf redistribution question
After labbing it up, I have come up with this:
ip route 100.100.100.0 255.255.255.0 null 0
ip route 101.101.101.0 255.255.255.0 10.10.10.1
Both are static routes.
They are both added to the bgp table with the network statement.
However, the first route is a "connected static" route and can be considered
connected.
The 2nd route is not connected so it is just static.
When redistributing BGP into OSPF it will grab all BGP routes (show ip orute
bgp) and all "Connected BGP" routes.
I am assuming that the first route is considered a "connected bgp" route and
the 2nd is not. Therefore only the 1st route is eligible to be redistributed
from BGP to OSPF. The only way to get the other route in ospf is by
redsistributing it from static to ospf.
Any input greatly appreciated..
Chris
On 4/23/08 9:09 AM, "Huan Pham" <huan.pham@valuenet.com.au> wrote:
> Hi Chris,
>
> BTW, I do not think that router checks if the next hop (for static route)
> reachable or not before the static route is installed in the routing table,
> unless you configure object tracking! I believe you meant the next hop is
> not on directly connected subnet.
>
> Cheers,
>
> Huan
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Chris McGuire
> Sent: Thursday, 24 April 2008 12:22 AM
> To: Andy Cole; Noor.Yousuf@shell.com; ccielab@groupstudy.com
> Subject: Re: bgp to ospf redistribution question
>
> Also, does the other route show up in the route table doing the
> redistribution?
>
> Show ip route static?
>
> If the next hop address is not reachable, it will not show up in the route
> table as a static and will therefore not be a candidate for the network
> statement under BGP.
>
> Thanks
> Chris
>
>
> On 4/23/08 8:11 AM, "Andy Cole" <Andy.Cole@foremostfarms.com> wrote:
>
>> gp redistribute-
>
> Chris S. McGuire
> Network Engineer
> Phone: 801-456-1028
> Fax: 801-456-1010
> Email: cmcguire@firstdigital.com
>
>
> Pass the CCIE in six weeks, Guaranteed!
> http://www.certscience.com/CCIE
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
> Pass the CCIE in six weeks, Guaranteed!
> http://www.certscience.com/CCIE
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
Chris S. McGuire
Network Engineer
Phone: 801-456-1028
Fax: 801-456-1010
Email: cmcguire@firstdigital.com
Pass the CCIE in six weeks, Guaranteed!
http://www.certscience.com/CCIE
This archive was generated by hypermail 2.1.4 : Thu May 01 2008 - 08:25:51 ART