Simple Definition of Ethernet Cables and Speeds Ethernet is a widely-used local area network (LAN) technology that uses a bus or star topology and supports data transfer rates of 10 Mbps. Fast Ethernet, also known as 100BASE-T, is an extension of Ethernet that supports data transfer rates of 100 Mbps. Gigabit Ethernet, also known as 1000BASE-T, is another extension of Ethernet that supports data transfer rates of 1 Gbps. 10 Gigabit Ethernet, also known as 10GBASE-T, is the latest extension of Ethernet that supports data transfer rates of 10 Gbps.
Spine-Leaf Network Architecture The spine-and-leaf network topology is a variation of the three-tier network topology, where the core layer is split into two parts: a spine and a leaf.
The spine layer is made up of high-speed routers or switches that connect all the leaf devices together. These devices are responsible for providing high-speed connectivity between the different parts of the network and they act as the primary point of interconnection.
Tier 2 Network Architecture A two-tier network topology refers to a network architecture that has two layers, or tiers, of network devices.
Access: The first tier is the access layer, which is the point of entry for end-users into the network. It comprises of network devices such as switches, routers, and wireless access points. This layer is responsible for connecting end-users to the network and providing basic security features such as VLANs and access control lists.
TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are the two most commonly used protocols for transmitting data over a network. Both protocols are used for different types of data transmission and have their own unique features and characteristics.
Simple Definition of TCP TCP is a connection-oriented protocol, which means that a virtual connection is established between the sender and the receiver before any data is transferred. This connection is maintained throughout the duration of the data transfer, and the receiver acknowledges receipt of each packet of data. This ensures that all data is received correctly and in the proper order. Additionally, TCP includes flow control and error-checking mechanisms to ensure that data is transferred efficiently and reliably. Due to these features, TCP is often used for applications that require high reliability, such as web browsing, email, and file transfer.
