Re: Filtering levels (was RE: multi-homing without the BGP (was RE: Packet Loss))

[Travis Pugh <tpugh () shore net>]

On Sun, 17 Dec 2000 nanog () rmrf net wrote:

> Depends on what class it's in.  Let me explain further.  Verio, in their
> infinite wisdom, has decided that they are going to throw CIDR right out
> the window.  We own 64.240.0.0-64.242.255.255.  We advertise MANY smaller
> blocks of this space obviously, and what we have found is that in that
> space (since it is "Class A" space, remember we don't know what CIDR is
> since we're Verio) is that Verio does not accept anything smaller than a
> /20.  Now many of our customers run BGP with us and advertise a /24 only,
> I guess they're SOL as far as Verio is concerned (actually if it's
> our space they're probably going to see the larger aggregate as
> well, so it's not as big of a deal, but still mighty annoying).  Oh, and
> did I mention that Verio isn't even one of our peers?  Oh well.

Maybe if you aggregated your announcements instead of feeding a /14 to us
as /22, /23, and /24 blocks, it wouldn't be necessary to do
minimum-allocation filtering.

-travis