[AusNOG] BGP hold timer values
Alex Samad - Yieldbroker
Alex.Samad at yieldbroker.com
Tue Jan 27 23:01:30 EST 2015
Okay its eBGP, currently have 4 providers, some with multiple connections. So I am thinking 6 / 20 might be good for me, business requirement for approx. 30sec response.
I am presuming all I am looking at is extra BGP packets .. every 6 sec compared to 1 min..
> -----Original Message-----
> From: David Hughes [mailto:david at hughes.com.au]
> Sent: Tuesday, 27 January 2015 9:37 PM
> To: Alex Samad - Yieldbroker
> Cc: ausnog at lists.ausnog.net
> Subject: Re: [AusNOG] BGP hold timer values
> I gave a lightning talk about this sort of thing a while ago at an APRICOT. I just
> googled to find the slides and can now see just how many years ago it was.
> Gotta say I'm feeling old :)
> But, it's probably still relevant although the defaults may have changed. This
> reflected what we were running at the time - and we were trying to be
> pretty aggressive.
> For reference I'm currently happy to run
> eBGP : 10 / 30
> iBGP : 5 / 15
> And I'd run this even to a single upstream. If it fails at least you'll have
> something in your logs to say why you fell off the net for a while. Silent
> failures are a bugger to troubleshoot.
> On 27/01/2015, at 6:47 PM, Alex Samad - Yieldbroker
> <Alex.Samad at yieldbroker.com> wrote:
> > Hi
> > I'm wonder what is considered "best practice" or good/responsible hold
> timer values for BGP.
> > Currently I'm set at 3m, but I am considering lowering this to 30s and keep
> alive down to 20s, potentially even lower. Or if possible to use BFD & BGP,
> what's the uptake on BFD ?
> > Alex
> > _______________________________________________
> > AusNOG mailing list
> > AusNOG at lists.ausnog.net
> > http://lists.ausnog.net/mailman/listinfo/ausnog
More information about the AusNOG