The most common of the two link state protocols is OSPF (Open Shortest Path First) it is widely used throughout the field (#1) due to it being a non proprietor protocol as well as its ability to interface with other networks. With OSPF you can group router into small areas and link them through a back bone when this is done you create the following a back bone router within the area of the back
Subnetting— Determine the classes – Classful vs Classless Class A: The first bit in the first octet must remain a 0. The remaining seven bits can be a 1, giving a maximum total of 127. The first octet, however, cannot be 0 (local identification, or “this network”) or 127 (loopback). Class A first octet range is 0 through 127, although the valid range is 1 through 126. Class B: The first bit in the first octet becomes a 1. The second bit, however, must remain a 0. The remaining six bits can be a 1
switching concepts that will include store and forward switching, cut through switching, fragment free switching, and V-Lan. This paper will also cover routing concepts, along with some comparisons including routed vs. routing protocols, Classful vs. classless protocols, and distance vector vs. link state protocols. Switching The definition of a switch or network switch is a small device that joins multiple computers together, working on layer two of the OSI, to form a local
1.0 – Operation of IP Data Networks 6% 1.1 - Recognize the purpose and functions of various network devices such as routers, switches, bridges and hubs. Repeater: - Repeater is transceiver which basically amplifies the power of the signal. - When the signal is received by the repeater, then it amplifies the signal and retransmits it. - Repeater is Physical Layer device. Hub: - A hub nothing but a multiple port repeater. - When the data is received by the hub, then it retransmits that data