Connections among ASes

Fri Nov 30 01:09:22 UTC 2007

Hi, 

I am not sure about whether the following two conditions are true or not:

	1) there is no such a direct link between two routers located in two Internet eXchange Points-IXPs (even in same city) if they are from different ASes. For example, a router A belongs to AS x located in IXP1, and router B belongs to AS y located in IXP2, there is no link between A and B.
    2) small AS will not use one router to connect to 2 different providers in differnet IXPs. It is much cheaper using one router to connect with different ASes in a same IXP. 

Thanks.

--------------
Chengchen
2007-11-29