IP EGP
BGP4
- all HPC sites and peer networks must BGP-peer with the vBNS--no exceptions
- all 22 vBNS routers are BGP speakers
- full Internet routing carried (~50,000 prefixes)
- iBGP mesh contributes 21 sessions per router
- Only Ciscos currently participate in eBGP
- with HPC, peer network or internetMCI routers
- BGP4 communities used to control route propagation and institute vBNS AUP