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ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
Metcalfe's first experimental network was called the Alto Aloha Network. In 1973 Metcalfe changed the name to "Ethernet," to make it clear that the system could support any computer--not just Altos--and to point out that his new network mechanisms had evolved well beyond the Aloha system. He chose to base the name on the word "ether" as away
ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM ETHERNET: THE DEFINITIVE GUIDE Four Basic Elements of Ethernet. Ethernet Hardware. Network Protocols and Ethernet. 3. The Media Access Control Protocol. The Ethernet Frame. Media Access Control Rules. Essential Media System Timing. Collision Detection and Backoff. ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6ETHERMANAGE.COM
A "repeater set" is a repeater and its associated transceivers (i.e., medium attachment units, or MAUs) and attachment unit interface (AUI) cables, if any. Repeaters must comply with all IEEE specifications in clause 9 of the 802.3 standard, and are used for signal retiming andETHERMANAGE.COM
OUI (vendor) codes and Type codes can help identify and track down machines and protocols in use on the network. For example, the OUI codes can help identify the vendor of a given Ethernet card that may be sending incorrect traffic. Knowing the vendor can often help you find out which machine on your network may be the one causingproblems.
GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
Metcalfe's first experimental network was called the Alto Aloha Network. In 1973 Metcalfe changed the name to "Ethernet," to make it clear that the system could support any computer--not just Altos--and to point out that his new network mechanisms had evolved well beyond the Aloha system. He chose to base the name on the word "ether" as away
ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM ETHERNET: THE DEFINITIVE GUIDE Four Basic Elements of Ethernet. Ethernet Hardware. Network Protocols and Ethernet. 3. The Media Access Control Protocol. The Ethernet Frame. Media Access Control Rules. Essential Media System Timing. Collision Detection and Backoff. ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6ETHERMANAGE.COM
A "repeater set" is a repeater and its associated transceivers (i.e., medium attachment units, or MAUs) and attachment unit interface (AUI) cables, if any. Repeaters must comply with all IEEE specifications in clause 9 of the 802.3 standard, and are used for signal retiming andETHERMANAGE.COM
OUI (vendor) codes and Type codes can help identify and track down machines and protocols in use on the network. For example, the OUI codes can help identify the vendor of a given Ethernet card that may be sending incorrect traffic. Knowing the vendor can often help you find out which machine on your network may be the one causingproblems.
GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:RESOURCES
Why is it called Ethernet? 10 Mbps Ethernet tutorials collected by the University of New Hampshire InterOperability Lab.. 100 Mbps Fast Ethernet tutorials from the InterOperability Lab.. 1000 Mbps Gigabit Ethernet tutorials from the InterOperability Lab.. 10/100ETHERNET BOOKS
Ethernet Books by Charles Spurgeon and Joann Zimmerman. The 2nd edition of Ethernet: The Definitive Guide has been completely revised and updated to inc lude the latest in Ethernet technology. We read the Ethernet standard (now grown to 3,747 pages) and manyETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the 1000BASE-T twisted-pair Gigabit EthernetBLOG
Xilinx and Huawei demonstrated a prototype 400 Gb/s Ethernet interface at the Optical Fiber Conference, which took place March 9-13, 2014, in the Moscone Center in San Francisco.ABOUT THE AUTHOR
Charles Spurgeon is a co-author of the book “Ethernet – The Definitive Guide, 2nd Edition”. He is a Senior Technology Architect for the ITS Networking group at the University of Texas at Austin, and he has been involved in developing and managing large campus computer networks for many years. Charles got his first email account on UT Austin mainframes in 1979, and his first Unix account TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6ETHERMANAGE.COM
OUI (vendor) codes and Type codes can help identify and track down machines and protocols in use on the network. For example, the OUI codes can help identify the vendor of a given Ethernet card that may be sending incorrect traffic. Knowing the vendor can often help you find out which machine on your network may be the one causingproblems.
10 MB/S HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES Thick Coaxial Ethernet, Type 10BASE5: Describes the thick coaxial variety of 10-Mbps Ethernet media. Thin Coaxial Ethernet, Type 10BASE2: Describes the thin coaxial variety of 10-Mbps Ethernet media. Twisted-Pair Ethernet, Type 10BASE-T: Describes the twisted-pair variety of 10-Mbps Ethernet media. Fiber Optic Ethernet, Type10BASE-F.
NETWORK MEDIUM
The 100BASE-TX media system is designed to allow segments of up to 100 meters in length when using data grade unshielded twisted-pair wire that has a characteristic impedance of 100 ohms and meets the EIA/TIA Category Five*1 wire specifications. Segments of 100BASE-TX are limited to a maximum of 100 meters to ensure that the round trip timing specifications are met. QUICK REFERENCE GUIDE TO AUTO-NEGOTIATION Quick Reference Guide to Auto-Negotiation - 25 MAY 96 Generated with CERN WebMakerCERN WebMakerETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user interface. The experimental Ethernet was used to link Altos to one another, and to servers and laser printers. The signal clock for the experimental Ethernetinterface
ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COMNETWORK MEDIUM
The 100BASE-TX media system is designed to allow segments of up to 100 meters in length when using data grade unshielded twisted-pair wire that has a characteristic impedance of 100 ohms and meets the EIA/TIA Category Five*1 wire specifications. Segments of 100BASE-TX are limited to a maximum of 100 meters to ensure that the round trip timing specifications are met. 14.6 100-MBPS CONFIGURATION GUIDELINES: MODEL 2 Transmission System Model 2 for 100BASE-T segments provides a set of calculations for verifying the round trip signal delay of more complexFast Ethernet LANs.
14.4 100-MBPS CONFIGURATION GUIDELINES: MODEL 1 Transmission System Model 1 of the Ethernet standard provides simplified guidelines. These make up a set of "canned" configuration rules that can be used to evaluate 100BASE-T configurations.GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- 13.2 FAST LINK PULSE 13.2 Fast Link Pulse. Fast Link Pulse (FLP) signals. These signals are a modified version of the Normal Link Pulse (NLP) signals used for verifying link integrity, as defined in the original 10BASE-T specifications. The FLP signals are generated automatically at power-up, or may be selected manually through the management interfaceto an Auto
AUI CABLE (TRANSCEIVER CABLE) An AUI cable can be used to provide the connection between an external MAU and the Ethernet interface. The MAU is equipped with a male 15-pin connector with locking posts, and the Ethernet interface (DTE) is equipped with a female 15-pin connector that is typically provided with a sliding latch.*1 The AUI cable, in turn, has a female 15-pin connector on one end that is equipped with a sliding CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user interface. The experimental Ethernet was used to link Altos to one another, and to servers and laser printers. The signal clock for the experimental Ethernetinterface
ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COMNETWORK MEDIUM
The 100BASE-TX media system is designed to allow segments of up to 100 meters in length when using data grade unshielded twisted-pair wire that has a characteristic impedance of 100 ohms and meets the EIA/TIA Category Five*1 wire specifications. Segments of 100BASE-TX are limited to a maximum of 100 meters to ensure that the round trip timing specifications are met. 14.6 100-MBPS CONFIGURATION GUIDELINES: MODEL 2 Transmission System Model 2 for 100BASE-T segments provides a set of calculations for verifying the round trip signal delay of more complexFast Ethernet LANs.
14.4 100-MBPS CONFIGURATION GUIDELINES: MODEL 1 Transmission System Model 1 of the Ethernet standard provides simplified guidelines. These make up a set of "canned" configuration rules that can be used to evaluate 100BASE-T configurations.GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- 13.2 FAST LINK PULSE 13.2 Fast Link Pulse. Fast Link Pulse (FLP) signals. These signals are a modified version of the Normal Link Pulse (NLP) signals used for verifying link integrity, as defined in the original 10BASE-T specifications. The FLP signals are generated automatically at power-up, or may be selected manually through the management interfaceto an Auto
AUI CABLE (TRANSCEIVER CABLE) An AUI cable can be used to provide the connection between an external MAU and the Ethernet interface. The MAU is equipped with a male 15-pin connector with locking posts, and the Ethernet interface (DTE) is equipped with a female 15-pin connector that is typically provided with a sliding latch.*1 The AUI cable, in turn, has a female 15-pin connector on one end that is equipped with a sliding CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERMANAGE.COM
The resources listed here are specific to the 10 Gigabit Ethernet system (10,000 Mbps). This standard was formally ratified by the IEEE on 12 June, 2002. The 10GBASE Gigabit Ethernet system operates in full-duplex mode only, over fiber optic media. There are seven media types, which are designed for use in either local or wide areanetworking.
TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6ETHERMANAGE.COM
A "repeater set" is a repeater and its associated transceivers (i.e., medium attachment units, or MAUs) and attachment unit interface (AUI) cables, if any. Repeaters must comply with all IEEE specifications in clause 9 of the 802.3 standard, and are used for signal retiming and 14.6 100-MBPS CONFIGURATION GUIDELINES: MODEL 2 Transmission System Model 2 for 100BASE-T segments provides a set of calculations for verifying the round trip signal delay of more complexFast Ethernet LANs.
14.4 100-MBPS CONFIGURATION GUIDELINES: MODEL 1 Transmission System Model 1 of the Ethernet standard provides simplified guidelines. These make up a set of "canned" configuration rules that can be used to evaluate 100BASE-T configurations. 14.1 100-MBPS MULTI-SEGMENT CONFIGURATION GUIDELINES This chapter describes the rules for combining multiple segments to build larger 100-Mbps Ethernets. The IEEE 802.3 standard provides two models for verifying the configuration of multi-segment 100-Mbpsbaseband Ethernets.
9.2 100-MBPS MEDIA SYSTEMS Compared to the 10-Mbps specifications, the 100-Mbps system results in a factor of ten reduction in the bit-time, which is the amount of time it takes to transmit a bit on the Ethernet channel. AUI CABLE (TRANSCEIVER CABLE) An AUI cable can be used to provide the connection between an external MAU and the Ethernet interface. The MAU is equipped with a male 15-pin connector with locking posts, and the Ethernet interface (DTE) is equipped with a female 15-pin connector that is typically provided with a sliding latch.*1 The AUI cable, in turn, has a female 15-pin connector on one end that is equipped with a sliding OPERATING AT THE HIGHEST PERFORMANCE MODE If the 10BASE-T hub in the previous example is later replaced with a 100BASE-T repeater hub, then the dual-speed interface will receive FLPs when the hub is turned on, and the Auto-Negotiation protocol will result in the interface and hub port both operating at 100-Mbps. OPERATION OF THE ARP PROTOCOL The operation of ARP is straightforward. Let's say an IP-based station (station "A") with IP address 192.0.2.1 wishes to send data over the Ethernet channel to another IP-based station (station "B") with IPaddress 192.0.2.2.
ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
Home. Ethernet Resources . Why is it called Ethernet? The following excerpt from Ethernet: The Definitive Guide (O'Reilly and Associates, 2000), explains where the name "Ethernet" comes from: "Invention of Ethernet. In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6 ETHERNET: THE DEFINITIVE GUIDE Ethernet: The Definitive Guide Table of Contents. Preface . Part I. Introduction to Ethernet. 1. The Evolution of Ethernet History ofEthernet
ETHERMANAGE.COM
Collision Domain. The multi-segment configuration guidelines apply to a half-duplex Ethernet collision domain described in Chapter 3, The Media Access Control Protocol.A collision domain is formally defined as a single Carrier Sense Multiple Access with Collision Detection (CSMA/CD) network in which there will be a collision if two computers attached to the system transmit at the same time.ETHERMANAGE.COM
Home. Ethernet Resources . Ethernet Numbers: Ethernet numbers include the 48-bit media access control (MAC) address assigned to each Ethernet interface, andGIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 1 7/31/2013 CAMPUS NETWORK REPORT ACADEMIC YEAR 2012-2013 JULY 31,ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
Home. Ethernet Resources . Why is it called Ethernet? The following excerpt from Ethernet: The Definitive Guide (O'Reilly and Associates, 2000), explains where the name "Ethernet" comes from: "Invention of Ethernet. In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM ETHERMANAGE.COMSEE MORE ON ETHERMANAGE.COM TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6 ETHERNET: THE DEFINITIVE GUIDE Ethernet: The Definitive Guide Table of Contents. Preface . Part I. Introduction to Ethernet. 1. The Evolution of Ethernet History ofEthernet
ETHERMANAGE.COM
Collision Domain. The multi-segment configuration guidelines apply to a half-duplex Ethernet collision domain described in Chapter 3, The Media Access Control Protocol.A collision domain is formally defined as a single Carrier Sense Multiple Access with Collision Detection (CSMA/CD) network in which there will be a collision if two computers attached to the system transmit at the same time.ETHERMANAGE.COM
Home. Ethernet Resources . Ethernet Numbers: Ethernet numbers include the 48-bit media access control (MAC) address assigned to each Ethernet interface, andGIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 1 7/31/2013 CAMPUS NETWORK REPORT ACADEMIC YEAR 2012-2013 JULY 31, RESOURCES - ETHERMANAGE.COM Why is it called Ethernet? 10 Mbps Ethernet tutorials collected by the University of New Hampshire InterOperability Lab.. 100 Mbps Fast Ethernet tutorials from the InterOperability Lab.. 1000 Mbps Gigabit Ethernet tutorials from the InterOperability Lab.. 10/100ETHERNET BOOKS
Ethernet Books by Charles Spurgeon and Joann Zimmerman. The 2nd edition of Ethernet: The Definitive Guide has been completely revised and updated to inc lude the latest in Ethernet technology. We read the Ethernet standard (now grown to 3,747 pages) and many TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6ABOUT THE AUTHOR
Charles Spurgeon is a co-author of the book “Ethernet – The Definitive Guide, 2nd Edition”. He is a Senior Technology Architect for the ITS Networking group at the University of Texas at Austin, and he has been involved in developing and managing large campus computer networks for many years. Charles got his first email account on UT Austin mainframes in 1979, and his first Unix accountETHERMANAGE.COM
Home. Ethernet Resouces . This page lists resources pertaining to 1 Gigabit Ethernet. There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps:ETHERMANAGE.COM
Home. Ethernet Resources . Ethernet Numbers: Ethernet numbers include the 48-bit media access control (MAC) address assigned to each Ethernet interface, and 10 MB/S HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES Thick Coaxial Ethernet, Type 10BASE5: Describes the thick coaxial variety of 10-Mbps Ethernet media. Thin Coaxial Ethernet, Type 10BASE2: Describes the thin coaxial variety of 10-Mbps Ethernet media. Twisted-Pair Ethernet, Type 10BASE-T: Describes the twisted-pair variety of 10-Mbps Ethernet media. Fiber Optic Ethernet, Type10BASE-F.
13.2 FAST LINK PULSE Auto-Negotiation takes place using Fast Link Pulse (FLP) signals. These signals are a modified version of the Normal Link Pulse (NLP) signals used for verifying link integrity, as defined in QUICK REFERENCE GUIDE TO AUTO-NEGOTIATION Quick Reference Guide to Auto-Negotiation - 25 MAY 96 Generated with CERN WebMakerCERN WebMaker AUI CABLE (TRANSCEIVER CABLE) An AUI cable can be used to provide the connection between an external MAU and the Ethernet interface. The MAU is equipped with a male 15-pin connector with locking posts, and the Ethernet interface (DTE) is equipped with a female 15-pin connector that is typically provided with a sliding latch.*1 The AUI cable, in turn, has a female 15-pin connector on one end that is equipped with a slidingETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user interface. The experimental Ethernet was used to link Altos to one another, and to servers and laser printers. The signal clock for the experimental Ethernetinterface
ABOUT THE AUTHOR
About the Author. Charles Spurgeon is a co-author of the book “Ethernet – The Definitive Guide, 2nd Edition”. He is a Senior Technology Architect for the ITS Networking group at the University of Texas at Austin, and he has been involved in developing and managing large campus computer networks for many years. Charles got his firstETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the1000BASE-T
TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6 10 MB/S HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES Thick Coaxial Ethernet, Type 10BASE5: Describes the thick coaxial variety of 10-Mbps Ethernet media. Thin Coaxial Ethernet, Type 10BASE2: Describes the thin coaxial variety of 10-Mbps Ethernet media. Twisted-Pair Ethernet, Type 10BASE-T: Describes the twisted-pair variety of 10-Mbps Ethernet media. Fiber Optic Ethernet, Type10BASE-F.
GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- THE EFFECT OF ETHERNET BEHAVIOR ON NETWORKS USING HIGH The Effect of Ethernet Behavior on Networks using High-Performance Workstations and Servers 1. Introduction Over the past 15 years, Ethernet has been become the most widely-used technology CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user interface. The experimental Ethernet was used to link Altos to one another, and to servers and laser printers. The signal clock for the experimental Ethernetinterface
ABOUT THE AUTHOR
About the Author. Charles Spurgeon is a co-author of the book “Ethernet – The Definitive Guide, 2nd Edition”. He is a Senior Technology Architect for the ITS Networking group at the University of Texas at Austin, and he has been involved in developing and managing large campus computer networks for many years. Charles got his firstETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the1000BASE-T
TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6 10 MB/S HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES Thick Coaxial Ethernet, Type 10BASE5: Describes the thick coaxial variety of 10-Mbps Ethernet media. Thin Coaxial Ethernet, Type 10BASE2: Describes the thin coaxial variety of 10-Mbps Ethernet media. Twisted-Pair Ethernet, Type 10BASE-T: Describes the twisted-pair variety of 10-Mbps Ethernet media. Fiber Optic Ethernet, Type10BASE-F.
GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- THE EFFECT OF ETHERNET BEHAVIOR ON NETWORKS USING HIGH The Effect of Ethernet Behavior on Networks using High-Performance Workstations and Servers 1. Introduction Over the past 15 years, Ethernet has been become the most widely-used technology CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERNET BOOKS
Ethernet Books by Charles Spurgeon and Joann Zimmerman. The 2nd edition of Ethernet: The Definitive Guide has been completely revised and updated to inc lude the latest in Ethernet technology. We read the Ethernet standard (now grown to 3,747 pages) and manyETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the 1000BASE-T twisted-pair Gigabit EthernetETHERMANAGE.COM
The resources listed here are specific to the 10 Gigabit Ethernet system (10,000 Mbps). This standard was formally ratified by the IEEE on 12 June, 2002. The 10GBASE Gigabit Ethernet system operates in full-duplex mode only, over fiber optic media. There are seven media types, which are designed for use in either local or wide areanetworking.
ETHERMANAGE.COM
OUI (vendor) codes and Type codes can help identify and track down machines and protocols in use on the network. For example, the OUI codes can help identify the vendor of a given Ethernet card that may be sending incorrect traffic. Knowing the vendor can often help you find out which machine on your network may be the one causingproblems.
ETHERMANAGE.COM
A "repeater set" is a repeater and its associated transceivers (i.e., medium attachment units, or MAUs) and attachment unit interface (AUI) cables, if any. Repeaters must comply with all IEEE specifications in clause 9 of the 802.3 standard, and are used for signal retiming and 10/100 MBPS HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES These Quick Reference Guides to Half-Duplex Ethernet contain the official half-duplex mode configuration rules for 10 and 100 Mbps Ethernet systems based on repeater hubs. Half-duplex Ethernet is another name for the original Ethernet mode of operation which uses the CSMA/CD media access protocol. In a half-duplex system, multiplesegments of
QUICK REFERENCE GUIDE TO 100BASE-TX CHAPTER 10 100-Mbps Twisted-Pair, Type 100BASE-TX. 10.1 - 100-Mbps TXMedia System 10.2
NETWORK MEDIUM
Network Medium. The 100BASE-TX media system is designed to allow segments of up to 100 meters in length when using data grade unshielded twisted-pair wire that has a characteristic impedance of 100 ohms and meets the EIA/TIA Category Five *1 wire specifications. Segments of 100BASE-TX are limited to a maximum of 100 meters toensure that the
QUICK REFERENCE GUIDE TO 10BASE-T TWISTED-PAIR ETHERNET Quick Reference Guide to 10BASE-T Twisted-Pair Ethernet - 04 SEP 95 Generated with CERN WebMakerCERN WebMaker AUI CABLE (TRANSCEIVER CABLE) An AUI cable can be used to provide the connection between an external MAU and the Ethernet interface. The MAU is equipped with a male 15-pin connector with locking posts, and the Ethernet interface (DTE) is equipped with a female 15-pin connector that is typically provided with a sliding latch.*1 The AUI cable, in turn, has a female 15-pin connector on one end that is equipped with a slidingETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user interface. The experimental Ethernet was used to link Altos to one another, and to servers and laser printers. The signal clock for the experimental Ethernetinterface
ABOUT THE AUTHOR
About the Author. Charles Spurgeon is a co-author of the book “Ethernet – The Definitive Guide, 2nd Edition”. He is a Senior Technology Architect for the ITS Networking group at the University of Texas at Austin, and he has been involved in developing and managing large campus computer networks for many years. Charles got his firstETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the1000BASE-T
TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6 10 MB/S HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES Thick Coaxial Ethernet, Type 10BASE5: Describes the thick coaxial variety of 10-Mbps Ethernet media. Thin Coaxial Ethernet, Type 10BASE2: Describes the thin coaxial variety of 10-Mbps Ethernet media. Twisted-Pair Ethernet, Type 10BASE-T: Describes the twisted-pair variety of 10-Mbps Ethernet media. Fiber Optic Ethernet, Type10BASE-F.
GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- THE EFFECT OF ETHERNET BEHAVIOR ON NETWORKS USING HIGH The Effect of Ethernet Behavior on Networks using High-Performance Workstations and Servers 1. Introduction Over the past 15 years, Ethernet has been become the most widely-used technology CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERMANAGE.COM
Managing Ethernet Networks (IEEE 802.3) This is a personal web site. All opinions expressed here are entirely my own and not those of myemployer.
ETHERMANAGE.COM
In late 1972, Metcalfe and his Xerox PARC colleagues developed the first experimental Ethernet system to interconnect the Xerox Alto, a personal workstation with a graphical user interface. The experimental Ethernet was used to link Altos to one another, and to servers and laser printers. The signal clock for the experimental Ethernetinterface
ABOUT THE AUTHOR
About the Author. Charles Spurgeon is a co-author of the book “Ethernet – The Definitive Guide, 2nd Edition”. He is a Senior Technology Architect for the ITS Networking group at the University of Texas at Austin, and he has been involved in developing and managing large campus computer networks for many years. Charles got his firstETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the1000BASE-T
TABLE OF CONTENTS FOR ETHERNET: THE DEFINITIVE GUIDE, 2ND Part I. Introduction to Ethernet 1. The Evolution of Ethernet . . 3. History of Ethernet 3 The Aloha Network 4 The Invention of Ethernet 4 Reinventing Ethernet 6 10 MB/S HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES Thick Coaxial Ethernet, Type 10BASE5: Describes the thick coaxial variety of 10-Mbps Ethernet media. Thin Coaxial Ethernet, Type 10BASE2: Describes the thin coaxial variety of 10-Mbps Ethernet media. Twisted-Pair Ethernet, Type 10BASE-T: Describes the twisted-pair variety of 10-Mbps Ethernet media. Fiber Optic Ethernet, Type10BASE-F.
GIGABIT ETHERNET
T oday a number of technologies, such as 10BaseT, 100BaseTX, and 1000BaseT, use the same RJ-45 connector, creating the potential for connecting electrically incom- THE EFFECT OF ETHERNET BEHAVIOR ON NETWORKS USING HIGH The Effect of Ethernet Behavior on Networks using High-Performance Workstations and Servers 1. Introduction Over the past 15 years, Ethernet has been become the most widely-used technology CAMPUS NETWORK REPORT 7-31-2013 V1 Information Technology Services (ITS) Campus Network Report AY12-13 Version 1.0 The University of Texas at Austin Page 5 7/31/2013 3. Service Levels All service level metrics were exceeded as of 6/2013:ETHERNET BOOKS
Ethernet Books by Charles Spurgeon and Joann Zimmerman. The 2nd edition of Ethernet: The Definitive Guide has been completely revised and updated to inc lude the latest in Ethernet technology. We read the Ethernet standard (now grown to 3,747 pages) and manyETHERMANAGE.COM
There are two Gigabit Ethernet standards which describe Ethernet systems that operate at 1000 Mbps: 1. The 802.3z standard describes the specifications for the 1000BASE-X fiber optic Gigabit Ethernet system. 2. The 802.3ab standard describes the specifications for the 1000BASE-T twisted-pair Gigabit EthernetETHERMANAGE.COM
The resources listed here are specific to the 10 Gigabit Ethernet system (10,000 Mbps). This standard was formally ratified by the IEEE on 12 June, 2002. The 10GBASE Gigabit Ethernet system operates in full-duplex mode only, over fiber optic media. There are seven media types, which are designed for use in either local or wide areanetworking.
ETHERMANAGE.COM
OUI (vendor) codes and Type codes can help identify and track down machines and protocols in use on the network. For example, the OUI codes can help identify the vendor of a given Ethernet card that may be sending incorrect traffic. Knowing the vendor can often help you find out which machine on your network may be the one causingproblems.
ETHERMANAGE.COM
A "repeater set" is a repeater and its associated transceivers (i.e., medium attachment units, or MAUs) and attachment unit interface (AUI) cables, if any. Repeaters must comply with all IEEE specifications in clause 9 of the 802.3 standard, and are used for signal retiming and 10/100 MBPS HALF-DUPLEX ETHERNET CONFIGURATION GUIDELINES These Quick Reference Guides to Half-Duplex Ethernet contain the official half-duplex mode configuration rules for 10 and 100 Mbps Ethernet systems based on repeater hubs. Half-duplex Ethernet is another name for the original Ethernet mode of operation which uses the CSMA/CD media access protocol. In a half-duplex system, multiplesegments of
QUICK REFERENCE GUIDE TO 100BASE-TX CHAPTER 10 100-Mbps Twisted-Pair, Type 100BASE-TX. 10.1 - 100-Mbps TXMedia System 10.2
NETWORK MEDIUM
Network Medium. The 100BASE-TX media system is designed to allow segments of up to 100 meters in length when using data grade unshielded twisted-pair wire that has a characteristic impedance of 100 ohms and meets the EIA/TIA Category Five *1 wire specifications. Segments of 100BASE-TX are limited to a maximum of 100 meters toensure that the
QUICK REFERENCE GUIDE TO 10BASE-T TWISTED-PAIR ETHERNET Quick Reference Guide to 10BASE-T Twisted-Pair Ethernet - 04 SEP 95 Generated with CERN WebMakerCERN WebMaker AUI CABLE (TRANSCEIVER CABLE) An AUI cable can be used to provide the connection between an external MAU and the Ethernet interface. The MAU is equipped with a male 15-pin connector with locking posts, and the Ethernet interface (DTE) is equipped with a female 15-pin connector that is typically provided with a sliding latch.*1 The AUI cable, in turn, has a female 15-pin connector on one end that is equipped with a slidingETHERMANAGE.COM
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NavigationHome Blog Books Resources CHARLES SPURGEON’S ETHERNET (IEEE 802.3) SITE THE DEFINITIVE GUIDE HAS BEEN UPDATED::
ETHERNET: THE DEFINITIVE GUIDE, 2ND EDITION * WHY IS IT CALLED ETHERNET? * ETHERNET RESOURCESCHARLES SPURGEON
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