Why not interconnect ?
Largely untried
- very uncommon in Europe (e.g. Geneva CIXP)
- more common in US (e.g. MAE-East, MAE-West/AMES)
Layer 2 Ethernet switching technology not suited for this
- no inter-domain policy controls
- spanning tree is only, and very primitive ‘dynamic routing’ protocol
Shared media networks are very vulnerable to accidents
- faults, mis-configuration, abuse
- interconnection increases this risk
Difficult for ɭ organisation to run single network