Re: Sprint BGP filters in 207.x.x.x?

[Sean Doran <smd () chops icp net>]

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> > > > > ""Daniel" == "Daniel M Barton" <dmbarton () mci net> writes:


    Daniel> Let me clarify something I incorrectly stated
    Daniel> earlier.  The MCI provider network
    Daniel> (MCI-NETBLKxx) are aggregated into /16s at
    Daniel> the borders, not /19s as my earlier note
    Daniel> said.  

Which is a good thing too, since, as we do closest-exit
routing towards InternetMCI, whether we hear one prefix
in your /14 or 10000, packets will go out the same
direction under normal circumstances.

Anyone wanting to deal with abnormal circumstances
(partitioning of InternetMCI that makes part of a
big aggregate unreachable from a border gateway
announcing the entire aggregate) is welcomed to study
Yakov Rekhter's excellent presentation on the "push"
operation.

Anyone downstream from us wanting to route differently
towards different parts of the big aggregate is welcomed
to study Yakov Rekhter's excellent presentation on
the "pull" operation.

        Sean.

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