[AusNOG] Urgent - Pacnet NOC contact (with BGP clue)

[Mark Smith]

On Sat, 11 Dec 2010 08:18:59 +1000
Thomas Nisbet-Smith <tom.nisbet at gmail.com> wrote:

> My simplistic view was that perhaps Skeeve could advertise "more specific"
> routes
> that would then be preferred over the routes being advertised by
> the culprits, i.e. if they are advertising /24s
> then change your statements to advertise 2x /25s
> 
> Not sure if that would work but we used to use that for dual links to ensure
> or traffic
> always flowed in a certain direction.
> 

The problem is that some providers (i.e. in the global set of
providers because this is the Internet route table) filter out
announcements that are longer than a /24.

When I briefly looked yesterday, for the first prefix Skeeve mentioned,
there was a /22 and 4 x /24s, so AINS may already be announcing /24s to
stop more specifics being used to get around this.

> Cheers
> Tom
> 
> On Sat, Dec 11, 2010 at 6:25 AM, Don Gould <don at bowenvale.co.nz> wrote:
> 
> >
> >
> > On 11/12/2010 12:32 a.m., Skeeve Stevens wrote:
> >
> > What do Pacnets up streams have to say?  At present I can't get to the
> > network as it's not routing past 21  gi1-0-4.gw1.syd3.asianetcom.net
> > (202.147.14.154) from both .nz and .us
> >
> > RFI - Not all of us really understand bgp, so sorry if the following
> > seems like an idiot question, but can providers all just announce the
> > correct info to drown out the wrong information? (and yes I do
> > understand how dumb that sounds as well, it's like 2 wrongs trying to
> > make a right).
> >
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