[isp-bgp] Re: configure customer prefixes

[James <haesu@...>]

use a peer-group for customer peers. also have the peer group append
"Customer" identifying community tag on received routes. 

-J

-- 
James Jun                                            TowardEX Technologies, Inc.
Technical Lead                        Network Design, Consulting, IT Outsourcing
james@...                  Boston-based Colocation & Bandwidth Services
cell: 1(978)-394-2867           web: http://www.towardex.com , noc: www.twdx.net

On Wed, May 19, 2004 at 05:50:30PM -0400, Xiaoliang Zhao wrote:
> Hi, all,
> 
> We are doing some BGP simulation research and we encountered a policy
> configuration problem. Basically, we want to configure a BGP router so
> that it only announces its customers' prefixes but not its peers'
> prefixes. Now, my question is what is the best current practice to
> identify an AS numbers as a customer ASN or a peer ASN? We are thinking
> the following two options.
> 
> 1. Use a list to include all customer AS numbers. This sounds a
> straightforward approach, but will it be a problem for a large ISP,
> which may have thousands customers? 
> 
> 2. Is there any alternative way to do that, for example, using certain
> community attribute value? or something similar?
> 
> Any suggestion will be greatly appreciated.
> 
> Thanks
> x.zhao
> 
> -- 
> USC/ISI
> 703-812-3709 (O)
> 
> 
> 




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