Select the three best answers which best describe Private Network-to Network Interface (PNNI) in an ATM network.()
- AIt is the Routing protocol used between ATM switches
- BPNNI uses the same Dijsktra algorithm for SPF calculation
- CPNNI and OSPF use the same Database to make cohesive decision for packet forwarding
- DPNNI measures line capacities and delays in addition to simple cost metric