"George Bonser" <gbonser@seven.com> writes:
-----Original Message----- From: Bret Clark Sent: Friday, December 10, 2010 7:08 AM To: nanog@nanog.org Subject: Re: BGP multihoming question.
3. You cannot trust the second isp to advertise the SWIP block correctly if they are not a tier 1. Even though they may advertise it for you to their upstream, they don't always have the appropriate
On 12/10/2010 10:01 AM, Dylan Ebner wrote: procedures in place to get the LOAs to the upstream so your block just gets filtered out.
Just got done battling this exact issue with one of our upstream peers...caused a lot of headaches for us.
Proper registration in a routing registry helps, too.
As does, frankly, having an ISP with a clue... and purported "tier" has little to do with it. -r