Hello Ou Zhang,
To provide further assistance with multihoming configurations, please check
out the following BGP Multihoming presentation:
http://www.cisco.com/public/cons/workshops/bgp/4-Multihoming-1up.PDF (for
one slide per page)
http://www.cisco.com/public/cons/workshops/bgp/4-Multihoming-6up.PDF (for
six slides per page)
This presentation has a lot of BGP Multihoming examples - including
configurations. Most have been pulled from a live operational configuration.
The ISP Workshop Team has decided to start pushing out the PDF version or
our materials. Since they are PDF only, you will not be able to find them
via CCO's search engine. So you'll need to go to:
http://www.cisco.com/public/cons/workshops/
Hope this helps,
Barry
> -----Original Message-----
> From: OZhang@tsibroadband.net [mailto:OZhang@tsibroadband.net]
> Sent: Friday, August 25, 2000 7:00 AM
> To: Philip Smith
> Cc: cisco-nsp@puck.nether.net
> Subject: Re: [nsp] BGP Multihome
>
>
>
> Hello All,
>
> I sent out my first message to this mailing list and I've received
> lots of replies. Thank you all for the support.
>
> Philip,
>
> Thanks for the suggestion. I'd assume that the customer can use the
> same private AS to peer with both us and the other service provider,
> correct ? Also, I need to add "remove-private-as" line for each of the
> other BGP peerings. Correct me if I'm wrong.
>
> -Ou Zhang
>
>
>
>
>
> Philip Smith
>
> <pfs@cisco.co To:
> OZhang@tsibroadband.net
> m> cc:
> cisco-nsp@puck.nether.net
> Subject: Re: [nsp]
> BGP
> 08/24/00 Multihome
>
> 09:31 PM
>
>
>
>
>
>
>
>
> Use a private ASN. Their routers are not sitting in your ASN, they are
> sitting in their own ASN, they are using their own IGP. So I don't
> understand the perceived liability problem - what is the difference as far
> as the world is concerned between this customer and one connected via a
> static route? In both cases, the route object is in the registry
> with their
>
> name on it...
>
> On the technical side:
> - remember to use "remove-private-AS" before you announce the customer
> addresses to the Internet.
> - if the customer gets their address space from you and the other
> provider, check out the BGP conditional advertisement feature.
>
> HTH,
>
> philip
> --
>
> At 14:59 24/08/00 -0400, OZhang@tsibroadband.net wrote:
> >Hello All,
>
> >
> > We have a customer who wants to do BGP multihome but does not want
> to
> >go through the hassle of applying their AS number. We are not
> >comfortable to have their routers sitting in our AS since we will be
> liable
> >for their problems if we do so. Has anyone come across this problem.
> >If so, how do you resolved it ?
> >
> >-Ou Zhang
>
>
>
>
>
>
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