Hi Michael, Advertise maps are used for conditional advertisement of a prefix that already exists in the BGP table. It can be used to advertise a prefix if another condition is met, but the prefix that is to be advertised must already be in the BGP table.
An inject-map can be used to effectively "originate" one or more of the component prefixes based on the existence of a larger block. In effect, you can "de-aggregate" a prefix received from another neighbor, but you don't have to have the individual component routes already learned. I guess the "more granular" claim of the docs would be because it doesn't just conditionally advertise a route or not, but it conditionally advertises the sub-ordinate routes. Hope that helps! On Sun, Sep 2, 2012 at 11:31 PM, Michael Davis - Webquor < [email protected]> wrote: > Hi there - can someone please explain when you would use the "BGP > inject-map" over the "BGP advertise-map". I am struggling to see the > functional difference. The documentation says that the inject-map gives > you more granularity than the advertise-map, by I still can't see much > difference. > Thanks > Michael > > Sent from my iPhone > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
