Ppt on network switching hub

5: DataLink Layer5-1 Chapter 5 Link Layer and LANs Computer Networking: A Top Down Approach Featuring the Internet, 3 rd edition. Jim Kurose, Keith Ross.

5: DataLink Layer5-46 Star topology r Bus topology popular through mid 90s r Now star topology prevails r Connection choices: hub or switch (more later) hub or switch 5: DataLink Layer5-47 Ethernet Frame Structure Sending adapter encapsulates IP datagram (or other network layer protocol packet) in Ethernet frame Preamble: r 7 bytes with pattern 10101010 followed by one byte with pattern 10101011 r/


Chapter Network Hardware © Nanda Ganesan, Ph.D.. Chapter Objectives Describe the important basic network hardware and the internetworking hardware Discuss.

of communication between the sub-networks Contributes to the modular construction of a networkNetwork itself is better managed –Network resources are better utilized Internetworking with a Router IEEE 802.3 Sub-network IEEE 802.5 Sub-network PC-NFS Sub-network Router Routers, Switches and Hubs in Perspective Switch Hub SWS Router Hub SWS Hub WSS Hub WS Hub WSS Sub-network 1 Sub-network 2 Backbone Difference Between Routers, Switches and Hubs Hubs –Simply provides the mechanical and/


Networking Components Assignment 3 Created by Janice Thompson

range from a few dollars to several hundred. From http://www.tigerdirect.com/ How a Switch Works A network switch (sometimes known as a switching hub) is a computer networking device that is used to connect devices together on a computer network. A switch is considered more advanced than a hub because a switch will only send a message to the device that needs or requests it, rather than broadcasting/


Network+ Guide to Networks 5th Edition

Placement must adhering to maximum segment and length limitations Repeaters and Hubs (cont’d) Figure 6-13 Hubs in a network design Hub (cont’d.) Hubs vary according to: Figure 6-14 A stand-alone hub Hub (cont’d.) Hubs vary according to: Supported media type, data transmission speeds Passive hubs, Intelligent hubs (managed hubs), Stand-alone hubs (workgroup hubs) Replaced by switches or routers Limited features Merely repeat signals Bridges Bridges Connects two/


Chapter 4 Hardware Layers: Local Area Networks Networking in the

4-4 Ethernet topology Figure 4-5 An example of an Ethernet local area network with two hubs Switched Ethernet Topology Switched Ethernet uses switches instead of hubs. Switches that make switching decisions based on data link layer addresses are called workgroup or layer-2 switches. While a hub broadcasts frames to all ports, the switch reads the destination address of the frame and only sends it to the corresponding port/


The Basics of Computer Networking David Phenix Computing in the Modern World 1 st Period.

Other LANS Firewall Router Fiber Optic Network Cable Server PC Wireless Network Wired Network Switch Navigation Network Diagram Network Types - WANWAN - LANLAN - Peer to PeerPeer to Peer Fiber Optic Cable Switches and Hubs Servers - IP AddressesIP Addresses Topologies - StarStar - BusBus - RingRing Firewalls Routers Wireless Networks The Internet References The Three Types of Networks PEER TO PEER WIDE AREALOCAL AREA Wide Area Network A Wide Area Network exist over a large area Data/


Sem 1 V2 Chapter 3 Local Area Networks LANS C. Marandola Cisco I Fall 2001 Community College of Rhode Island, Cisco Regional Academy.

address not on the incoming port of the bridge), then it is forwarded to the next network segment. You will not study the details of switching until Semester 3, but for now, consider a switch to be a hub with individual ports that act like individual bridges. The switch takes packets, de-encapsulates them to Layer 2, examines the Layer 2 MAC addresses, and forwards/


Larger Site Networks Part 1. 2 Small Site –Single-hub or Single- Switch Ethernet LANs Large Site –Multi-hub Ethernet LANs –Ethernet Switched Site Networks.

1 2 Small Site –Single-hub or Single- Switch Ethernet LANs Large Site –Multi-hub Ethernet LANs –Ethernet Switched Site Networks –Congestion, Latency, and solutions –ATM LANs –Routers, Layer 3, and Layer 4 Switches Multi-hub LANs Multiple hubs Multiple hubs in 10Base-T Multiple hubs in 100Base-TX Multiple hubs in Gigabit Ethernet 4 Hubs Small LANs –Single-hub or single-switch LAN –200 meter maximum distance span between farthest two stations with/


Introduction to Computer Networks

of the addressed computer/user. VRM & RVT Training Program - Vehicle Familiarization Network Hardware and software Computer Networks Network Hardware and software Network Hardware and Software. Aside from clients and servers, computer networks may also contain the following components: Network interface card (NIC). Hub. Bridge. Router. Modem. Gateway. Switch. Firewall. Operating System. Network Hardware and Software. Network interface card (NIC) Provides the physical interface between computer and cabling/


Communication and Network Concepts

, 12 or 24 RJ-45 ports Used in star or ring topology. Switch A switch (switching hub) in the context of networking refers to a device which filters and forwards data packets across a network. Unlike a standard hub which simply replicates what it receives on one port onto all the other ports, a switching hub keeps a record of the MAC addresses of the devices attached to it/


Ethernet Ethernet Computer Networks Computer Networks.

take place at 10 Mbps!! Computer Networks Ethernet Computer Networks Ethernet 34 Switched Ethernet Computer Networks Ethernet 35 Switched Ethernet Halsall Figure 4-20.A simple example of switched Ethernet. Tanenbaum considers a more powerful switch that reduces collisions even further!! Computer Networks Ethernet Computer Networks Ethernet 36 Switched Ethernet Tanenbaum Switched Ethernet Hub  Since servers are often shared by multiple nodes, one can employ a switching hub with one port which operates at/


5: DataLink Layer5a-1 Chapter 5 Data Link Layer Computer Networking: A Top Down Approach Featuring the Internet, 2 nd edition. Jim Kurose, Keith Ross Addison-Wesley,

services, error detection/correction, multiple access Next: LAN technologies m addressing m Ethernet m hubs, bridges, switches m 802.11 m PPP m ATM 5: DataLink Layer5a-39 LAN Addresses and ARP 32-bit IP address: r network-layer address r used to get datagram to destination IP network (recall IP network definition) LAN (or MAC or physical or Ethernet) address: r used to get/


Chuong Huynh National Center for Biotechnology Information,

.  There are following three common types of the bridges. Switches A network switch is a LAN/WAN communication device. It joins the multiple computers together in the LAN and WAN.  In the LAN, the switches do not broadcast the data to all the connected computers like the hub.  Based on the IP/MAC addresses of the computer, a switch sends data only to the destined computer/


Ethernet Ethernet Advanced Advanced Computer Networks.

transmission can take place at 10 Mbps!! Advanced Computer Networks Ethernet 34 Switched Ethernet Figure 4-20.A simple example of switched Ethernet. Tanenbaum’s discussion considers a more powerful switch that reduces collisions even further!! Advanced Computer Networks Ethernet 35 Switched Ethernet Tanenbaum Switched Ethernet Hub  Since servers are often shared by multiple nodes, one can employ a switching hub with a port which operates at a higher rate/


Local Area Networks Content Chapter 14: Advanced Review (Part I)

, memory and multitasking operating system – Support many additional features n VLANs n QoS n Multicast n And, of course, network management QoS = quality of service VLAN = virtual LAN Ethernet Switches (continued) Late 1980s Mid-1990sLate 1990s Bridge Hub Switch Hub Multilayer Switches n Multilayer switches have both switching and routing modules – Operate at Layer 2 and Layer 3 – Often very high-speed and expensive devices n Typically equipped/


Sanjay Goel, School of Business 1 Internet Communications, Networking & Computer Security Sanjay Goel University at Albany.

MAC address? E.g. fake broadcast FF:FF:FF:FF:FF:FE Sniffing ARP Detection Sanjay Goel, School of Business 117 Set the ARP table static Replace Hub with Switch –Makes sniffing harder Sniff the network for sniffing –Monitor changes of mapping of IP and MAC address Encryption –Ultimate solution: never transmit plain-text information Sniffing ARP Protection Sanjay Goel, School of Business/


The Optical Networking Taxonomy

SONET but evolving later to next generation SONET or WDM flavors) collecting traffic from end-offices to the core hub nodes in the core IOF network. The core nodes consist of several ‘switchingnetwork elements - circuit switching (e.g., SONET DCSs, OXCs) and packet switching (e.g., ATM switches, IP/MPLS routers) - that are interconnected through either SONET/WDM BLSR type rings or mesh architectures. Similarly, the/


DataLink Layer1 Link Layer and LANS Gordon College Adapted from Computer Networking: A Top Down Approach.

detection/correction, multiple access Next: LAN technologies m addressing m Ethernet m hubs, switches m PPP DataLink Layer30 MAC Addresses and ARP r 32-bit IP address: m network-layer address m used to get datagram to destination IP subnet r MAC/ mid 90s r Now star topology prevails r Connection choices: hub or switch (more later) hub or switch DataLink Layer42 Ethernet Frame Structure Sending adapter encapsulates IP datagram (or other network layer protocol packet) in Ethernet frame Preamble: r 7 bytes/


Basic Communications Systems Class 4

. To provide a security wall between two different groups of users. Bridges / Switches Data Communications and Computer Networks Chapter 8 Bridges / Switches A bridge or switch can be used to connect two similar LANs, such as two CSMA/CD LANs. Bridges connect to hubs. Switches can connect to PCs, hubs, or other switches. Each bridge or switch examines the destination address in a frame and either forwards this frame/


1 Last class r Random Access Protocols m Slotted Aloha m Aloha m CSMA/CD m “Taking Turns” Protocols r Link-Layer Addressing Today r Ethernet, Hubs and.

1 Last class r Random Access Protocols m Slotted Aloha m Aloha m CSMA/CD m “Taking Turns” Protocols r Link-Layer Addressing Today r Ethernet, Hubs and Switches r Mobile and wireless networks, CDMA r IEEE 802.11 wireless LANs 2 Slotted ALOHA (Efficiency 0.36) Pros r single active node can continuously transmit at full rate of channel r highly decentralized: only/


Computer Networks, February , 2000

is used for reception as well as for collision detection 100BASE-T4 Use of Wire Pairs DTE HUB Transmit D1 Transmit D1 Receive D2 (collision detection Receive D2 (collision detection Bidirectional D3 Bidirectional D3 / circuit switching and packet switching. Recently, frame relay and ATM networks have assumed major roles. WANs (cont) Circuit switching: a dedicated communication path is established between two stations through the nodes of the network. Example: the telephone network. Packet switching: At /


1 Networking for the Future of Science ESnet Status Update William E. Johnston, ESnet Department Head and Senior Scientist Joe Burrescia, General Manager.

Boston Philadelphia Indianapolis (>1 ) Atlanta Nashville Layer 1 optical nodes at eventual ESnet Points of Presence ESnet IP switch only hubs ESnet IP switch/router hubs ESnet SDN switch hubs Layer 1 optical nodes not currently in ESnet plans Lab site OC48 ESnet IP core (1 ) ESnet Science Data Network core ESnet SDN core, NLR links (existing) Lab supplied link LHC related link MAN link International IP/


Switch Router Design & Implementation

High Speed Networking Frame Switch Ethernet IP Frame Switch Ethernet 10 / 100 Ethernet Access Gigabit Ethernet Backbone Frame Ethernet IP Cell Cell Switch IP IP Edge Hub IP Switch Backbone IFMP, GSMP, TDP Frame Ethernet IP Cell ATM Cell Switch ATM ATM Edge Hub IPOA, LANE, MPOA ATM Switch Backbone Frame Cell ATM Cell Switch ATM CIF Edge Hub ATM Switch Backbone Cell Switch ATM Cell Switch ATM ATM Edge Switch ATM Switch Backbone IP Switching Model/


Ethernet Ethernet Advanced Computer Networks Advanced Computer NetworksD12.

can take place at 10 Mbps!! Switched Ethernet Advanced Computer Networks Ethernet 35 Switched Ethernet Halsall Advanced Computer Networks Ethernet 36 Figure 4-20.A simple example of switched Ethernet. Tanenbaum considers a more powerful switch that reduces collisions even further!! Switched Ethernet Tanenbaum Advanced Computer Networks Ethernet 37 Switched Ethernet Hub  Since servers are often shared by multiple nodes, one can employ a switching hub with one port which operates at/


What is Networking? Lets go see! A network adapter interfaces a computer to a network. The term "adapter" was popularized originally by Ethernet add-in.

a small hardware device that joins multiple computers together within one local area network (LAN). Technically, network switches operate at layer two (Data Link Layer) of the OSI model.Network switches appear nearly identical to network hubs, but a switch generally contains more intelligence (and a slightly higher price tag) than a hub. Unlike hubs, network switches are capable of inspecting data packets as they are received, determining the source and destination/


Network Hardware for Expanding Network. Expanding Networks When do we need expansion:  Network cable is full of data movements  Printing tasks needs.

.  Repeaters work on the physical layer of the OSI model. 4 Repeater 5 Switch  A network switch is a small hardware device that joins multiple computers together within one LAN.  Network switches appear nearly identical to network hubs, but a switch generally contains more "intelligence" (and a slightly higher price tag) than a hub. 5 Switch  Unlike hubs, network switches are: capable of inspecting data packets as they are received, determining the source/


NETWORKING COMPONENTS ALEX TARABA LTEC4550.020 20 OCTOBER 2014.

that reaches the other end will be garbled and unusable. COMPONENT #2: SWITCH A network switch is a computer networking device that connects devices together on a computer network, by using a form of packet switching to forward data to the destination device. A network switch is considered more advanced than a (repeater) hub because a switch will only forward a message to one or multiple devices that need to/


1 Network Analysis and Design – CIS 460 Based on: Top Down Network Design Second Edition by: Oppenheimer, Priscilla.

each workstation There is little or no redundancy 118 Hierarchical Network Design One problem with the centralization of resources, such as servers, is that traffic must constantly cross the hubs or switches There is an endless argument over whether resources should be / is the only choice At this level switches are the only choice for a new network There is no reason to use a hub anymore Bridges are outmoded as well, they are replaced by switches 138 Switching and Routing Protocols At the CAN level for/


5: DataLink Layer5a-1 Chapter 5 Data Link Layer Computer Networking: A Top Down Approach Featuring the Internet, 2 nd edition. Jim Kurose, Keith Ross Addison-Wesley,

services, error detection/correction, multiple access Next: LAN technologies m addressing m Ethernet m hubs, bridges, switches m 802.11 m PPP m ATM 5: DataLink Layer5a-45 LAN Addresses and ARP 32-bit IP address: r network-layer address r used to get datagram to destination IP network (recall IP network definition) LAN (or MAC or physical or Ethernet) address: r used to get/


5-1 Link & Physical Layers (2-89-90) Link & Physical Layers Computer Networks.

Mbps time Header What happens if R2 > R1 ? 5-120 Link & Physical Layers (2-89-90) Typical LAN (IP network) Repeater hub 1 Client Printer Server Client Switching hub Client Remote Access Server Modem pools Telephone Lines Router External Link Servers modem Client Repeater hub n 5-121 Link & Physical Layers (2-89-90) hubsbridgesroutersswitches Traffic isolationnoyes plug & playyes noyes Optimal routingno yesno Cut throughyesno/


1 Learning objectives After learning this chapter the students will be able to: Define what a Computer Network is List the benefits of networking List.

easy to expand depending on the specifications of central hub/switch Failure of hub/switch leads to failure of entire network It requires more cable length as compared to bus topology. COMPUTER NETWORKING Node Hub/ Switch Node (Server) Node-Printer Node Star Topology Tree / links over which the data is sent from one node to another over a network. Hardware devices used to form a network are: Cables, NIC, Hub, Switch, Repeater, and Gateway. Repeaters are used to regenerate the signal which gets weakened/


Data Link Layer Issues Dealing with Different Types of Networks.

message  Other nodes ignore the message An Ethernet switch (similar to an ATM switch) forwards only in the one correct direction (or not, if appropriate) Star Network Operation AB CD Hub Transmit Star Network Operation AB CD Hub Receive Star Network Operation AB CD Hub Transmit Star Network Operation AB CD Hub Receive Twisted Pair Ethernet  Physically, all Ethernet types are bus networks However, the actual layout of the cables in/


Computer Networks Prepared by Jas.C.P KV NAD ALWAYE ERNAKULAM REGION.

, 12 or 24 RJ-45 ports Used in star or ring topology. Switch A switch (switching hub) in the context of networking refers to a device which filters and forwards data packets across a network. Unlike a standard hub which simply replicates what it receives on one port onto all the other ports, a switching hub keeps a record of the MAC addresses of the devices attached to it/


Computer Networks Lecture 6: Data Link Layer June 2009 Local Area Networks Ethernet, Wireless, PPP, ATM.

and forward m slight reduction in latency r combinations of shared/dedicated, 10/100/1000 Mbps interfaces Not an atypical LAN (IP network) Dedicated Shared Summary comparison Outline r LAN addresses and ARP r Ethernet r Hubs, bridges, and switches r Wireless links and LANs r PPP r ATM IEEE 802.11 Wireless LAN r 802.11b m 2.4-5 GHz unlicensed/


DCN286 INTRODUCTION TO DATA COMMUNICATION TECHNOLOGY Network Physical Layer Connection.

1TD+White/GreenWhite/Orange 2TD-GreenOrange 3RD+White/OrangeWhite/Green 4UnusedBlue 5UnusedWhite/Blue 6RD-OrangeGreen 7UnusedWhite/Brown 8UnusedBrown Straight through cable Can be used to connect PC and other network equipments to LAN hub/switch Wire 1 and 2 are used to transmit data Wire 3 and 6 are used to receive data Cross-over cable It is used to connect two same/


Larger Site Networks Chapter 8 Copyright 2001 Prentice Hall Revision 2: July 2001.

Site Networks zOrganization yLANs (subnets) based on hubs yRouters link hubs yHierarchy of Routers Router Hub 73 The Switching Revolution zSwitches Push Routers to the Edge ySwitches replace most routers in site networks yBecause switches are cheaper than routers yRouting’s sophistication is still needed at the edge External Switch Router 74 The Switching Revolution zLayer 3 Switches yTraditional switches operate at Layer 2; Switch based on MAC addresses yLayer 3 switches switch based/


Local Area Networks Content Chapter 14: Advanced Review (Part I)

of interconnection device are: – Modems n For digital connection over analogue networks – Multiplexers, repeaters, hubs, switches, routers n For digital connection over digital networks Network node devices n Router – Determines route packet takes through network & switches packet onto correct output link n Switch, bridge – Switches packet, byte, bit from one transmission link to another under software control n Hub, repeater – Repeats digital data stream received on one input link to/


Ch.2 – Networking Fundamentals Getting past some basics… CIS 81 and CST 311 Cabrillo College and CSUMB Rick Graziani Fall 2005.

learn, the more all of this will come into focus! Rick Graziani graziani@cabrillo.edu3 What is Networking? Networking - the interconnection of workstations, peripherals, terminals and other devices. Whatis.com: “In information technology, networking is the construction, design, and use of network, including the physical (cabling, hub, bridge, switch, router, and so forth), the selection and use of telecommunication protocol and computer software for using and/


Www.ischool.drexel.edu INFO 330 Computer Networking Technology I Chapter 5 The Link Layer & LANs Dr. Jennifer Booker 1INFO 330 Chapter 5.

data –This makes collisions impossible for those hosts –Dedicated access means point-to-point connections can be used; no multiple access protocol needed! INFO 330 Chapter 578 Switches Switches can help a network by: –Eliminate collisions, if there are no hubs in the network –Have links at different speeds and different media (copper vs fiber), but all the same protocol –Shut off misbehaving adapters –Collect/


Mike Meyers’ CompTIA Network+ ® Guide to Managing and Troubleshooting Networks, Fourth Edition (Exam N10-006 ) Copyright © 2015 by McGraw-Hill Education.

point-to-point connections between two conversing computers The Trouble with Hubs Mike Meyers’ CompTIA Network+ ® Guide to Managing and Troubleshooting Networks, Fourth Edition (Exam N10-006 ) Copyright © 2015 by McGraw-Hill Education. All rights reserved. Figure 4.24 Hub (top) and switch (bottom) comparison Mike Meyers’ CompTIA Network+ ® Guide to Managing and Troubleshooting Networks, Fourth Edition (Exam N10-006 ) Copyright © 2015 by McGraw-Hill Education. All/


Ch.2 – Networking Fundamentals. 2 Overview Remember, we are just beginning to herd the cats. Much of this will become clearer LATER! The more we learn,

disadvantage as a repeater, anything it receives on one port, it FLOODS out all other ports. Wherever possible, hubs should be replace by switches. More LATER! 9 Switches Switches look a lot like hubs, but internally are much different. Switches can learn where devices are on the network, so they do not have flood information (frames), but can FILTER them so the information only goes out the/


1 An overview of networks Outline Contemporary networks Networks: single-link network to an internetwork For each type of network: tasks & layers Mechanisms.

3: –Hubs implement only the physical layer which consists of the tasks of........ 35 Increasing complexity of networks Unshared single-link network Shared single-link network  Multiple-link network (with switches) Additional tasks? Additional layers? Internetwork (with gateways) 36 Host Switch One network – same type of switches Multiple-link network e.g., roadways network (with road intersection comparable to a switch) 37 What additional tasks are needed in multiple-link networks? Switching: forward data/


11 NETWORK CONNECTION HARDWARE Chapter 3. Chapter 3: NETWORK CONNECTION HARDWARE2 NETWORK INTERFACE ADAPTER  Provides the link between a computer and.

and Class II.  The maximum distance for each node connection is 100 meters.  Class II hub-to-hub connections can be no more than 5 meters long. Chapter 3: NETWORK CONNECTION HARDWARE23 HUB CONNECTIONS Play Video Chapter 3: NETWORK CONNECTION HARDWARE24 10BASE-T HUB Chapter 3: NETWORK CONNECTION HARDWARE25 BRIDGES AND SWITCHES  Are data-link layer devices that use destination addresses to forward frames  Are protocol independent  Do/


Networking Devices Hang Pham Jared Jelacich David Ramirez.

- $400 Zyxel: company use, price range $100- $400 A network segment is a portion of a computer network separated by a computer networking device, including: A network segment is a portion of a computer network separated by a computer networking device, including: Repeater or Ethernet hub Repeater or Ethernet hub Bridge or switch Bridge or switch Router Router Hub and Router prices Hub and Router prices Chanel plus: $300-$500 Chanel plus/


OSI Application Presentation Session Transport Network Data Link Physical Framing Error control Flow control Transmission/reception of frames MEDIA ACCESS.

tap-in into other users data u Better management F control who receives what information (i.e. Virtual LANs) F limit the impact of network problems u Full duplex F rather than half duplex required for shared access Switched LAN Hub and Switched LAN –hub simulates a single shared medium –switch simulates a bridged LAN with one computer per segment n Highly Scalable n 10Base-T/


1 Modelling and Simulation of Ethernet Based Networked Mechanical Systems Department of Mechanical & Industrial Engineering Concordia University Control.

) models of : Develop FSM (Finite State Machine) models of : - Network Interface card (NIC) - Network Interface card (NIC) - Bus - Bus - Hub - Switch Implement the models using C++ functions Implement the models using C++ functions Individually/61 Latency Measurement: Hub / Switch Parallel Port Cable Node1 NIC Hub/Switch Node2 NIC 62 Network efficiency delay versus frame size comparison for 2 and 4 node networks Network utilization versus frame size comparison for 2 and 4 node networks Test 3: Variation/


5: DataLink Layer 5a-1 18: Ethernet, Hubs, Bridges, Switches Last Modified: 10/27/2015 1:29:46 PM.

Layer 5a-32 5: DataLink Layer 5a-33 Summary r Layer 3 Devices (Network Layer) m Router r Layer 2 Devices (Link Layer) m Bridge m Switch r Layer 1 Devices (Physical Layer) m Repeaters m Hubs 5: DataLink Layer 5a-34 Outtakes Data Link Layer 5-35 Institutional network to external network router IP subnet mail server web server 5: DataLink Layer 5a-36/


Guide to Networking Essentials, 6 th Edition Chapter 2: Network Hardware Essentials.

network repeaters and hubs –The purpose of network switches –The operation of wireless access points –the basic operation of network interface cards –The function of routers Section 1.1 Intro; Repeaters; Hubs PP. 61-66 Copyright © 2012 Cengage Learning. All rights reserved.3 4 Network Repeaters and Hubs Early networks didn’t use interconnecting devices Severely limited network/13 Copyright © 2012 Cengage Learning. All rights reserved.14 Network Switches Looks like a hub Inside a LAN 1.Reads data a frame at a/


5: DataLink Layer5a-1 Chapter 5 Data Link Layer Computer Networking: A Top Down Approach Featuring the Internet, 2 nd edition. Jim Kurose, Keith Ross Addison-Wesley,

services, error detection/correction, multiple access Next: LAN technologies m addressing m Ethernet m hubs, bridges, switches m 802.11 m PPP m ATM 5: DataLink Layer5a-39 LAN Addresses and ARP 32-bit IP address: r network-layer address r used to get datagram to destination IP network (recall IP network definition) LAN (or MAC or physical or Ethernet) address: r used to get/


1 Chapter 8 Local Area Networks - Internetworking.

8-7c. Note there is now only one way to get to any LAN or bridge from any other LAN or bridge. Chapter Eight - Local Area Networks: Internetworking 29 30 Switches A switch is a combination of a hub and a bridge. It can interconnect two or more workstations, but like a bridge, it observes traffic flow and learns. When a frame arrives at/


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