From: Mister T (romantic24hrs@gmail.com)
Date: Thu Jul 06 2006 - 05:15:35 ART
Hi...I took this from McGraw Hill book (I already practiced it), saying :
Cisco provides a way to force IGP routes to take precedence over EBGP
routes. The concept is called
"backdoor links." EBGP routes can be tagged as backdoor routes, which sets
the distance of these routes to the
same as BGP local or 200. Since the distance is then higher than the IGP
route, the backdoor IGP route is preffered.
In order to get Router to prefer the IGP learned route, the BGP learned
prefix must be tagged as a backdoor route. To tag the network prefix as a
backdoor route perform the following on Router:
Router(config)#router bgp 300
Router(config−router)#network 152.1.1.4 mask 255.255.255.252 backdoor
mister t
On 7/6/06, mattclark@hispeed.ch <mattclark@hispeed.ch> wrote:
>
> Hi group
>
> Came across this command and wanted to know a useful example of when to
> implement this feature. is a backdoor route just a fancy way of saying a
> backup route if you lost routes? the DocCD states that a backdoor network is
> treated as a local network, except that it is not advertised.
> Any other explanations would be appreciated.
>
> Matt
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Tue Aug 01 2006 - 07:13:46 ART