ATM Traffic Classes
UBR PVPs carry best-effort IP traffic via:
- full-mesh of router-router pt-to-pt PVCs
- SVCs between routers & hosts on vBNS LIS
Set of VBR PVPs also provisioned through Hyperstream network for vBNS:
- one per physical trunk connecting vBNS POPs
- will carry VBR SVCs triggered by vBNS Reserved Bandwidth service