The Cidr Report

Sun Feb 13 08:30:20 UTC 2005

On Sun, 13 Feb 2005, Alexander Koch wrote:

> On Sun, 13 February 2005 07:31:16 +0000, Christopher L. Morrow wrote:
> [..]
> > There are some business reasons to de-aggregate. Look at some outages
> > caused by 'routing problems' (someone leaked my /24's to their peers,
> > peers, peer and my traffic got blackholed, because the public net only
> > knows me as a /20)
>
> I am surprised you bring such an argument up. While we can
> surely agree on this happening on the net, I have yet to
> hear from someone saying this is happening more than once
> a month or so. Maybe Todd from Renesys has other examples
> besides the Yahoo incident.^

if it happens once to you and lasts long enough... I'm not condoning it,
nor saying it's even a valid reason to do it, just pointing out that it
does happen :(

>
> > There are multiple reasons for deaggregation aside from 'dumb operator',
> > some are even 'valid' if you look at them from the protection standpoint.
>
> I won't argue that, but how many ISPs are using this line
> of argument? I have not heard anyone yet telling me this,
> not in years.
>

a few have... recently in fact.