O

Octets, 68

partial subnetting, 77-78

whole subnet example, 73-75

Open Shortest Path First (OSPF), 511-14

Open Systems Interconnection (OSI), 34

implementation, 37-39

Operational technologies, 8

Optical carrier, 44, 96

Optical routers, 95-96

Optical technologies, 97-98

Optimized Edge Routing (OER), 145

Ordinality, 31