Juniper BGP Convergence Time

Wed May 16 17:43:24 UTC 2018

I did exactly that when I called. One is looking into the other hasn't
called yet. I will let you know what they say.

On Wed, May 16, 2018 at 12:59 PM Phil Lavin <phil.lavin at cloudcall.com>
wrote:

> Ask if they will configure BFD for you. I’ve not found many transit
> providers that will, but it’s worth a shot and it will lower failure
> detection to circa 1 second.
>
>
> > On 16 May 2018, at 17:49, Adam Kajtar <akajtar at wadsworthcity.org> wrote:
> >
> > I could use static routes but I noticed since I moved to full routes I
> have
> > had a lot fewer customer complaints about latency(especially when it
> comes
> > to Voice and VPN traffic).
> >
> > I wasn't using per-packet load balancing. I believe juniper default is
> per
> > IP.
> >
> > My timers are as follows
> > Active Holdtime: 90
> > Keepalive Interval: 30
> >
> > Would I be correct in thinking I need to contact my ISP to lower these
> > values?
> >
> > An interesting note is when I had both ISPs connected into a single MX104
> > the failover was just a few seconds.
> >
> > Thanks again.
> >
> >
> >
> >> On Tue, May 15, 2018 at 8:42 PM Ben Cannon <ben at 6by7.net> wrote:
> >>
> >> Have you checked your timeouts ?
> >>
> >> -Ben
> >>
> >>> On May 15, 2018, at 4:09 PM, Kaiser, Erich <erich at gotfusion.net>
> wrote:
> >>>
> >>> 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
> >>>>> -----------------------------------------------------
> >>>>> http://www.wadsworthcity.com
> >>>>>
> >>>>> Facebook <http://www.facebook.com/cityofwadsworth>* |* Twitter
> >>>>> <https://twitter.com/CityOfWadsworth> *|* Instagram
> >>>>> <https://www.instagram.com/cityofwadsworth/> *|* YouTube
> >>>>> <https://www.youtube.com/channel/UCymlH-AZgvxTaHtgp3-AmDQ>
> >>>>
> >>>>
> >>
> >
> >
> > --
> > Adam Kajtar
> > Systems Administrator, Safety Services
> > City of Wadsworth
> > Office 330.335.2865
> > Cell 330.485.6510
> > akajtar at wadsworthcity.org
> > -----------------------------------------------------
> > http://www.wadsworthcity.com
> >
> > Facebook <http://www.facebook.com/cityofwadsworth>* |* Twitter
> > <https://twitter.com/CityOfWadsworth> *|* Instagram
> > <https://www.instagram.com/cityofwadsworth/> *|* YouTube
> > <https://www.youtube.com/channel/UCymlH-AZgvxTaHtgp3-AmDQ>
>

-- 
Adam Kajtar
Systems Administrator, Safety Services
City of Wadsworth
Office 330.335.2865
Cell 330.485.6510
akajtar at wadsworthcity.org
-----------------------------------------------------
http://www.wadsworthcity.com

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