tailieunhanh - Lecture Building a Simple Network: Understanding Ethernet

This chapter identify the basic characteristics of network media used in Ethernet, describe the physical and data link features of Ethernet, describe the function and characteristics of the media access control method used by Ethernet protocol,. For more information, inviting you refer lecture. | Building a Simple Network Understanding Ethernet Local Area Network LAN Components Computers PCs Servers Interconnections NICs Media Network devices Hubs Switches Routers Protocols Ethernet IP ARP DHCP Functions of a LAN Data and applications Share resources Provide communication path to other networks LAN Sizes Ethernet Evolution LAN Standards Lesson Aim Communication Across a Local Ethernet Network Data Link - MAC 000000000000000000001100 000100101000101001111101 48 BITS The MAC address is a 48-bit number, which, as Figure below shows, is designed so that every device anywhere on the planet should be uniquely identifiable. MAC Address Components Ethernet Frame Structure LAN Segment Limitations Signals degrade with transmission distance. Each Ethernet type has a maximum segment length. Communicating Within the LAN Extending LAN Segments Shares bandwidth Extends cable distances Repeats or amplifies signal Collisions CSMA/CD Bridges Operate at . | Building a Simple Network Understanding Ethernet Local Area Network LAN Components Computers PCs Servers Interconnections NICs Media Network devices Hubs Switches Routers Protocols Ethernet IP ARP DHCP Functions of a LAN Data and applications Share resources Provide communication path to other networks LAN Sizes Ethernet Evolution LAN Standards Lesson Aim Communication Across a Local Ethernet Network Data Link - MAC 000000000000000000001100 000100101000101001111101 48 BITS The MAC address is a 48-bit number, which, as Figure below shows, is designed so that every device anywhere on the planet should be uniquely identifiable. MAC Address Components Ethernet Frame Structure LAN Segment Limitations Signals degrade with transmission distance. Each Ethernet type has a maximum segment length. Communicating Within the LAN Extending LAN Segments Shares bandwidth Extends cable distances Repeats or amplifies signal Collisions CSMA/CD Bridges Operate at Layer 2 of the OSI model Forward, filter, or flood frames Have few ports Are slow LAN Switch High port density Large frame buffers Mixture of port speeds Fast internal switching Switching modes: Cut-through Store-and-forward Fragment-free Multiple Collision Domains LAN Switch Features LANs Today Users grouped by physical location More switches added to networks Switches connected by high-speed .

• Quản trị mạng
• Building Simple Network
• Local Area Network
• Ethernet evolution
• LAN Standards
• MAC address components
• Ethernet frame structure
• CCNA Exploration 4
• Lecture CCNA Exploration 4
• Ethernet 802
• 3 networks
• Media Access Control
• Ethernet Slot Time