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" <net...@farm-market.net> To: "Mikrotik discussions" <Mikrotik@mail.butchevans.com> 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 Mikrotik@mail.butchevans.com 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 Mikrotik@mail.butchevans.com http://mail.butchevans.com/mailman/listinfo/mikrotik Visit http://blog.butchevans.com/ for tutorials related to Mikrotik RouterOS
