Splitting ARIN assignment

Thu May 22 18:45:17 UTC 2008

Yamasaki, Charles wrote:
>> Make sure that your two location is inter-connected directly,
> 
> Why is this required?  If you put static routes to point the remote /21 to
> the upstream provider on each side wouldn't that take care of the origin AS
> loop?

Origin AS is easily handled by the allow-as-in neighbor command and 
better replaced with more flexible as-path and prefix-lists in route-maps.

The interconnection is required to be able to advertise the entire space 
as a "covering" prefix at both sites.

Doing that without interconnectivity and using your static route idea 
would generate routing loops.