Also, keep in mind that some networks filter /24s because they are in love with their old crappy routers and while the traffic will still get to you, it may have worse performance.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com Midwest Internet Exchange http://www.midwest-ix.com ----- Original Message ----- From: "Terri Kelley" <[email protected]> To: "Mikrotik discussions" <[email protected]> Sent: Wednesday, July 1, 2015 8:04:58 AM Subject: Re: [Mikrotik] Two BGP peers, one on hot standby Sorry Josh, I went to bed after that first answer last night. Like Alexander said, in the bgp networks set up your /23 and whatever your /24’s are that you want to use. Then in filters assign the /23 to both sides then assign your /24’s to the side that you want. Also you may have to call your upstream and tell them you want to load balance. Some only allow the whole thing and will have to set up to allow your smaller ones. I had to do that with Cogent. Terri Kelley Network Engineer Farm to Market Broadband > On Jun 30, 2015, at 10:34 PM, Alexander Neilson <[email protected]> > wrote: > > You could use filters. > > Under /routing filter you can set them. > > Then in each session you can set your filter chain (like firewall chains) to > each peer. > > You can also create two different BGP setups with different configurations. > > This way you keep both sessions up with tables. You can add as length and > change weight. You can also pick some ranges that you like out of the smaller > connection and use that for better outbound. > > Also on top you could advertise both the /23. The 2 /24's out the bigger one > if you really want to use that one over any other. However if you just > announce the /23 out of both and just prepend your as number more times > (maybe 2 or 3) then you avoid polluting the global routing table with the > extra entries but still have it live and ready. And you can withdraw routes > through the primary in any issues. > > Regards > > Alexander > > Alexander Neilson > Neilson Productions Ltd > [email protected] > 021 329 681 > >> On 1/07/2015, at 3:16 pm, Josh Luthman <[email protected]> wrote: >> >> That's really clever! I have a /23. How would I add two /24 but specify >> the peer? >> >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> On Tue, Jun 30, 2015 at 11:12 PM, Terri Kelley <[email protected]> >> wrote: >> >>> What's the size of the block you are advertising? If say a /20 then you >>> can do that in both then on the side you want traffic on add smaller blocks >>> of that. It will then favor that side. It will fail over that way also. >>> >>> Terri Kelley >>> Network Engineer >>> 254.697.6710 >>> Farm to Market Broadband >>> >>> -----Original Message----- >>> From: Josh Luthman <[email protected]> >>> To: Mikrotik discussions <[email protected]> >>> Sent: Tue, 30 Jun 2015 10:04 PM >>> Subject: [Mikrotik] Two BGP peers, one on hot standby >>> >>> Is it possible to push all of the traffic to one interface while leaving >>> both peers operational? >>> >>> I'm looking for a failover to be used only if for some reason my primary >>> connection isn't working. I'm not sure if this would include simply losing >>> the BGP peer or if there's another way to detect problems/outage with the >>> primary. >>> >>> My reasoning behind this is that the secondary connection is much smaller >>> (bandwidth). It is enough to carry the customers during a the primary's >>> outage, but I would prefer to avoid day to day traffic on this link. >>> >>> Josh Luthman >>> Office: 937-552-2340 >>> Direct: 937-552-2343 >>> 1100 Wayne St >>> Suite 1337 >>> Troy, OH 45373 >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: < >>> http://mail.butchevans.com/pipermail/mikrotik/attachments/20150630/0123a7ef/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/20150630/0cbf9385/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/20150630/91830d87/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 > _______________________________________________ > 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... 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