l3vpn-1----Page:17
1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21 

Inter-AS
Old (draft-rosen) approach: tunnel spans multiple ASes
Undesirable fate-sharing, must agree on tunnel type
New draft allows another approach: may “splice” tunnels from different ASes
Allows each AS to build its tunnels independently of other ASes
Scaling now independent of number of PEs in other ASes
PPT Version