If the downstream customers are not multihomed, there's no reason
to run BGP with them; a simple default/static will work just fine.
Also, if you suballocate addresses to them from within your address
space, you can aggregate them.
This is generally considered a Good Thing.
- paul
Isn't it true though that some upstream providers (such as Sprint) filter
out anything smaller than /19 and will not carry those routes? Therefore
in this example, Sprint clients would not be able to see these smaller
providers and vice versa unless he agregates them to /19 or higher and
then announces the routes himself?
...David
* David Papp | 4907-99 Street | Ph: +1.403.430.0811 *
* Manager | Edmonton, Alberta | Fax: +1.403.436.9963 *
* OA Internet Inc. | Canada, T6E 4Y1 | Email: david@oanet.com *
Would it be possible to get a copy of the Sprint filters and the AGIS ones
too, posted at http://www.nanog.org so that people can be referred to them
for the precise details on what is being filtered.
Michael Dillon - Internet & ISP Consulting
Memra Software Inc. - Fax: +1-250-546-3049
http://www.memra.com - E-mail: michael@memra.com