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BGP multihoming question.

Subject: BGP multihoming question.
From: gbonser at seven.com (George Bonser)
Date: Fri, 10 Dec 2010 09:24:24 -0800
In-reply-to: <[email protected]>
References: <[email protected]> <1291894346.2820.9.camel@valio><[email protected]> <[email protected]>


> -----Original Message-----
> From: Bret Clark 
> Sent: Friday, December 10, 2010 7:08 AM
> To: nanog at nanog.org
> Subject: Re: BGP multihoming question.
> 
> On 12/10/2010 10:01 AM, Dylan Ebner wrote:
> > 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
> 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.

Follow-Ups:
- BGP multihoming question.
  - From: rs at seastrom.com (Robert E. Seastrom)

References:
- BGP attribute 128 activity
  - From: jared at puck.nether.net (Jared Mauch)
- BGP multihoming question.
  - From: b2 at playtime.bg (b2)
- BGP multihoming question.
  - From: dylan.ebner at crlmed.com (Dylan Ebner)
- BGP multihoming question.
  - From: bclark at spectraaccess.com (Bret Clark)

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