From: James (james@towardex.com)
Date: Wed Aug 04 2004 - 14:39:24 GMT-3
> Phil Smith and Barry Greene do have a book on the subject, Cisco ISP
> Essentials.
ahhh yes. That book is certainly one of those must-have from Cisco Press
in my opinion (may be not so related to CCIE studies, but more so in real life).
:) Barry and Phil in that book mostly speak straight out of experience, rather
than theoratical content which is what I enjoyed the most. Then they have the
whole sample topology and configuration set at the end.
I should look into the two other books you listed later on, thanks for the info!
-J
> I also have NANOG presentations and two books in this
> area, the books coming at the problem a little differently: one, WAN
> Survival Guide, is more oriented to the enterprise interface to the
> carrier, and the other, Building Service Provider Networks, is the
> complement at the provider side of the network.
>
> As James suggests, the line between complex enterprise and service
> provider can get blurry. For example, with one multinational
> enterprise that was extremely distributed, the policy requirements
> were such that each region needed to be a confederation AS, typically
> associated with one IGP domain, and then there was a
> backbone-of-backbones with the main AS number. Since there was
> connectivity to ISPs all over the world, there was some connectivity
> directly from confederation AS. Depending on the specific
> requirements, the confederation could be a registered AS number, use
> the main number, or use a private ASN.
>
> >
> >IMHO, I'd use IBGP at the core. Run EBGP with upstreams, and any downstream
> >sites requiring bgp hookup to the backbone.
> >
> >HTH,
> >-J
> >
> >
> >--
> >James Jun TowardEX
> >Technologies, Inc.
> >Technical Lead Network Design, Consulting, IT
> >Outsourcing
> >james@towardex.com Boston-based Colocation &
> >Bandwidth Services
> >cell: 1(978)-394-2867 web: http://www.towardex.com , noc:
> >www.twdx.net
> >
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-- James Jun TowardEX Technologies, Inc. Technical Lead Network Design, Consulting, IT Outsourcing james@towardex.com Boston-based Colocation & Bandwidth Services cell: 1(978)-394-2867 web: http://www.towardex.com , noc: www.twdx.net
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