maybe the other way around since it is prepended to ATT? It would come in on TW first since it looks like it is further away on ATT? The rest of the /20 would come in as it does now with any prepends?
Terri Kelley Network Engineer 254-697-6710 Farm to Market Broadband On Aug 25, 2014, at 10:11 PM, Mike Hammett wrote: > I'll quickly yield to someone else, but I believe the smallest network block > always wins, regardless of any other pushing. I think the /22 would go AT&T > instead of TW because of this. > > > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > > ----- Original Message ----- > > From: "Terri Kelley" <[email protected]> > To: "Mikrotik discussions" <[email protected]> > Sent: Monday, August 25, 2014 10:07:07 PM > Subject: [Mikrotik] prepend in BGP > > I think I asked this before but can't find it so here it is. I coming up on > the need to load balance between my upstreams from my bgp edge. Question is, > do I have to list each subnet prepending the ones I want or can I list the > whole subnet then follow that with the prepend on the part that I want. > Example is (changing the real IP blocks for the example) with TW being one of > my upstreams and ATT the other all to the same edge router… > > /routing filter > add action=accept chain=TW-out prefix=192.168.48.0/20 > add action=discard chain=TW-out > add action=accept chain=ATT-out prefix=192.168.48.0/20 > add action=accept chain=ATT-out prefix=192.168.52.0/22 set-bgp-prepend=3 > add action=discard chain=ATT-out > > I'm hoping that will move the 192.168.52.0/22 over to the TW side unless it > goes down and leave the rest of the 48.0/20 block on the ATT. Otherwise I > need to list each one subnet out on the ATT entries I think. > > Terri Kelley > Network Engineer > 254-697-6710 > Farm to Market Broadband > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://mail.butchevans.com/pipermail/mikrotik/attachments/20140825/7723f8d3/attachment.html> > > _______________________________________________ > Mikrotik mailing list > [email protected] > http://mail.butchevans.com/mailman/listinfo/mikrotik > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://mail.butchevans.com/pipermail/mikrotik/attachments/20140825/e7c39aef/attachment.html> > _______________________________________________ > Mikrotik mailing list > [email protected] > http://mail.butchevans.com/mailman/listinfo/mikrotik > > Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.butchevans.com/pipermail/mikrotik/attachments/20140825/2e5c7489/attachment.html> _______________________________________________ Mikrotik mailing list [email protected] http://mail.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
