Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [Z] obtaining namespaces 2nd octets 2nd Class A IP addresses nonzero on-ramp providers. [See ISPs] one-to-all communication. [See also broadcasting (] one-to-many communication. [See also communication (] one-to-one communcation. [See also communications unicasting] open networking 2nd 3rd 4th 5th 6th 7th 8th 9th Open Shortest Path First (OSPF) open standards 2nd 3rd 4th Open Systems Interconnect. [See OSI] optimization aggregatability subnetting 2nd 3rd 4th 5th 6th 7th 8th 9th OSI (Open Systems Interconnect) OSI Reference Model IP networks 2nd 3rd OSPF (Open Shortest Path First) overlay tunneling oversized block assignments overview CIDR 2nd architecture 2nd 3rd 4th NAT 2nd 3rd 4th |