Dark Fibre | CWDM | DWDM | SONET/SDH | MPLS | IP (Internet) | |
Distance | 40 km+ | Less than 100 km | Up to 200 km (see Note) | 1000s of km | Unlimited | Unlimited |
Latency | 5 /km | 5 /km | Low | Medium | Variable | Variable (high) |
Channels | N/A | Up to 16 | 100+ | N/A | N/A | N/A |
Bandwidth | 100 Gbps+ | 10 Gbps (per channel) | 40 Gbps (per channel) | 10 Gbps | Variable | Variable |
Reliability | 1x10 12 | 1x10 12 | High | High | High | High |
Cost | Low/High | Medium | High | Medium | Low | Low |
Type | Private Leased | Private Leased | Private Leased | Leased | Private Leased | Shared |