[148295] in North American Network Operators' Group
Re: bgp question
daemon@ATHENA.MIT.EDU (Jonathan Lassoff)
Tue Jan 10 17:49:18 2012
In-Reply-To: <CAAiP3237EFYNaZ2RqL7B53zBSsDCvS9BqdBDND6fur-Dzdx4Pw@mail.gmail.com>
Date: Tue, 10 Jan 2012 14:48:30 -0800
From: Jonathan Lassoff <jof@thejof.com>
To: Deric Kwok <deric.kwok2000@gmail.com>
Cc: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tue, Jan 10, 2012 at 2:43 PM, Deric Kwok <deric.kwok2000@gmail.com>wrote:
> Hi all
>
> When we get newip, we should let the upstream know to expor it as
> there should have rule in their side.
>
> how about upstream provider, does they need to let their all bgp
> interconnect to know those our newip?
>
> If no, Can I know how it works?
>
> If they don't have rules each other, ls it any problems?
>
It depends on your upstream ISPs.
Conventionally, some choose to place exact filters in place on BGP
announcements that exactly match IP space that is registered with a RIR or
LIR, some build those filters from IRR sources, and others just filter on
the number of prefixes your sending (to avoid sending a whole table out on
accident). I'm sure there are some other filtering schemes in place around
the world.
In the case of exact filters, you'll need to contact your upstream ISPs and
ask them to update their filters.
In the case of IRR-sourced filtering information, update the prefixes that
you originate with your IRR provider.
And in the case of max-prefix filtering, ask your ISP what they have their
equipment set to.
Cheers,
jof
