From: Howard C. Berkowitz (hcb@gettcomm.com)
Date: Fri May 28 2004 - 14:14:02 GMT-3
At 12:52 PM -0400 5/28/04, ccie2be wrote:
>Hi Guys,
>
>Typically, in the real world, an ISP's customers don't have their own
>registered AS number.
I'm not so sure I would agree with that. The growth trend in the
global AS list is very strongly influenced by increases in customer,
not transit, AS.
Also, see RFCs 1998 and 2270 for cases where customers are assigned
private AS numbers.
>But, in the lab, if wer'e told to filter the prefixes
>of an ISP's customers, should we assume then, this ISP's customers have their
>own AS number unless we're given the actual prefixes?
>
>Thanks, Tim
>
I would assume that, if I am told they are running BGP.
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