You should always filter what you advertise to ur upstream - BGP is very flexible at this. By doing proper filtering you will not become a transit accidentally. Path prepend and other techniques can be used to influence traffic flow and do load-sharing.
There are tons of documents on how to do this... following is nice doc by Philip Smith: http://www.ripe.net/ripe/meetings/regional-meetings/manama-2006/BGPBCP.pdf On Fri, Apr 12, 2013 at 11:12 PM, Robert Beck <[email protected]> wrote: > Hi all, > > I have BGP questions. But first the set up. > > ISP1 connectected to R1 > ISP2 connected to R1 > > ISP2 connected to R2 > > IBGP between R1 and R2 redistributing 0.0.0.0 from EBGP into IGP that is > received from primary ISP. Which from what I've found on google searches > that seems to be the norm. > > Both routers are receiving the full BGP table. Several Networks advertised > out both ISPs. > > Now the questions.. > 1. Is it a good idea to receive the full BGP table other than the cool > factor? Also, is there a way to prevent from becoming a transit hop while > receiving the full BGP table? When you receive the full BGP table, isn't > becoming a transit area automatic? > > 2. Is there a good way to load balance outbound traffic to the internet in > this set up? 60/40? If the route goes out ISP1 and network A is advertised > to ISP2 will asymetric routing work in this case? I think not. I would > assume the best practice method would be to have the path go out which ever > Network is advertised to which ISP. For example, if Network B is advertised > out ISP2 then have them route that way instead of ISP1. > > thanks for any info. > _______________________________________________ > 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
