Switches / Hubs. 1  Experts: In a cisco network, what is the difference between a vlan and a bridge group. 2  The main difference is that VLAN dills with nodes on your LAN, bridge dills with networks: VLAN is a group of nodes on one or more networks behaves as if they are on the same subnet.
The TCP/IP model (Transmission Control Protocol/Internet Protocol) is a descriptive framework for the Internet Protocol Suite of computer network protocols. DARPA, an agency of the United States Department of Defense, created it in the 1970s.
NTP is a protocol designed to synchronize the clocks of computers over a network to a common timebase (usually UTC). NTP version 4 is a significant revision of the previous NTP standard, and is the current development version. NTP version 3 was an internet draft standard, formalized in RFC 1305.