Juniper BGP Convergence Time

Tue May 15 23:09:32 UTC 2018

 Do you need full routes?  What about just a default route from BGP?

Erich Kaiser
The Fusion Network
erich at gotfusion.net
Office: 815-570-3101

On Tue, May 15, 2018 at 5:38 PM, Aaron Gould <aaron1 at gvtc.com> wrote:

> You sure it doesn't have something to do with 60 seconds * 3 = 180 secs of
> BGP neighbor Time out before it believes neighbor is dead and remove routes
> to that neighbor?
>
> Aaron
>
> > On May 15, 2018, at 9:10 AM, Adam Kajtar <akajtar at wadsworthcity.org>
> wrote:
> >
> > Hello:
> >
> > I'm running two Juniper MX104s. Each MX has 1 ISP connected running
> > BGP(full routes). iBGP is running between the routers via a two port 20G
> > lag. When one of the ISPs fails, it can take upwards of 2 minutes for
> > traffic to start flowing correctly. The router has the correct route in
> the
> > routing table, but it doesn't install it in the forwarding table for the
> > full two mins.
> >
> > I have a few questions if anyone could answer them.
> >
> >   - What would a usual convergence time be for this setup?
> >   - Is there anything I could do speed this process up? (I tried
> Multipath)
> >   - Any tips and tricks would be much appreciated
> >
> > Thanks in Advance
> > --
> > Adam Kajtar
> > Systems Administrator
> > City of Wadsworth
> > akajtar at wadsworthcity.org
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>