[195687] in North American Network Operators' Group
Re: Max Prefix Out, was Re: Verizon 701 Route leak?
daemon@ATHENA.MIT.EDU (Randy Bush)
Sat Sep 2 00:57:36 2017
X-Original-To: nanog@nanog.org
Date: Sat, 02 Sep 2017 12:40:33 +0900
From: Randy Bush <randy@psg.com>
To: Christopher Morrow <morrowc.lists@gmail.com>
In-Reply-To: <CAL9jLaZTKgwo3+WdCYLNbe9eEz=EAP2Wj1RZ219bFNe-P2oU4g@mail.gmail.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
>>> i have 142 largish bgp customers, a large enough number that the number
>>> of prefixes i receive from them varies annoyingly. how do i reasonably
>>> automate setting of my outbound prefix limit?
>>
>> First, it seems you know the inbound so automating the outbound is simple
>> arithmetic.
>
> I would have said the same... i ought to know high-water marks for your
> inbound peer count(s), and can work out a +20% outbound...
you just assumed that the transitive closure of everybody's cones
implement and propagate count. ain't gonna happen.
