[32767] in North American Network Operators' Group
ISP operational question
daemon@ATHENA.MIT.EDU (Charles Smith)
Tue Dec 12 11:43:36 2000
From: "Charles Smith" <chasmith9@hotmail.com>
To: nanog@merit.edu
Date: Tue, 12 Dec 2000 16:40:30 -0000
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Please consider the following scenario:
A new company wants to become a regional ISP. This company will purchase one
or two large bandwidth circuits from a NSP of their choice.
Then the new regional ISP will offer private line p2p Internet service to
regional businesses. Basically, this is a small operation.
Now here is the question. What choices does the regional ISP have when
implementing routing and IP addressing? I assume the regional ISP will not
implement BGP, since there will only be one maybe two upstream connections
to a single NSP - initially.
Furthermore, I assume the NSP would provide the regional ISP with a supernet
- say a /20 or so. Then the regional ISP would allocate subnets of the
supernet to their customer - say /24s.
I also assume the regional ISP would not require an AS number since they are
not implementing BGP. Basically, all traffic from the regional ISP and
customers is default routed to the single upstream connection.
Are these assumptions valid? Is this a good configuration? I realize
multiple upstreams from different providers is optimal, however not
plausdable in this case.
Your constructive insight to the scenario is appreciated.
Chas
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