It's related to your hold timer and your convergence time. Lower to 14/45s and it will be much faster.
On Wed, Apr 19, 2023, 5:31 PM Mark - Myakka Technologies <m...@mailmt.com> wrote: > Trey, > > That is the main question. If it takes the rest of the Internet 10 mins > to figure out my BGP dropped, does it matter if I spend $$$$$ of some super > fast router that can build the tables in 30s? > > -- > Best regards, > Mark mailto:m...@mailmt.com > > Myakka Communications > www.Myakka.com > > ------ > > Wednesday, April 19, 2023, 5:55:30 PM, you wrote: > > TS> You can prevent this by having a backup default route. The other thing > is if you are n a physical interface or aggregated interface with a vlan on > your upstream's router. If its physical it should stop routing traffic when > it sees the interface down. If not it may keep trying to send traffic down > that interface. BFD can help with this. It will Also depend on how your > provider handles the traffic when the the session with you terminates. If > it will forward it on to your other providers or not. If your alternate > providers are connected closely to you it shouldn't take to long, but it > can take 10-20min for the loss of the peer to propagate across all global > routing tables. > > TS> On 4/19/23 9:47 AM, Mark - Myakka Technologies wrote: > >> We have two circuits coming into our NOC. We peer with 3 different > providers on each circuit. If a circuit fails, BGP will do it's magic and > traffic will start flowing though the surviving circuit. > >> > >> However, we seemed to get about 5 - 10 minutes of unstable Internet > while this is happening. Is this normal? If not, what can I do to speed up > the process? Is it a function of my routers having to rebuild routes? > Will new faster routers help? Is it a function of timers? Keep-Alive is > 30s and hold is at 90s. Should I investigate BFD? > >> > >> How fast could I expect to get this fail-over to work under best > conditions? > >> > >> Thanks, > >> Mark mailto:m...@mailmt.com > >> > >> Myakka Communications > >> www.Myakka.com > >> > >> > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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