LAN Standards From IEEE

IT Toolbox

So, the next grouping of posts will focus on some specific layer standards that we use in LANs every day

LAN 122

Passive optical LAN: When network speed, bandwidth and security matter

Computer Weekly

Copper-based local area networks are increasingly unfit for purpose in a digital enterprise, but passive optical LANs may be a solution. Tech evangelist Paul Ryan, chair of the Association of Passive Optical LAN, explains why

LAN 129

Cisco Revives LAN-SAN Convergence Play in the Data Center

Data Center Knowledge

Cisco Networking Storage Cisco DCNM Cisco MDS 9000 Cisco Nexus 9000 FCIP FCoE LAN SAN convergence storage networking Tony AntonyWith all the ingredients finally in place in one family of switches and a revised family of storage directors, will convergence happen at last? Read More.

LAN 167

IBM's Impact on LANs

IT Toolbox

Particularly in the areas of microcomputers, LANs, and enterprise networking, IBM's insistence that its customers remain "pure blue" ran against both the economic and technological developments set in motion before 1990

LAN 116

Remembering IBM LAN Server Part 2

IT Toolbox

Notwithstanding its heritage, LAN Server 4.0 would incorporate some relatively strong enterprise-wide services, including support for the Open Software Foundation's (OSF) Distributed Computing Environment (DCE), a graphical user interface, and extended peer services

LAN 116

The LAN: A History of Network Operating Systems Part 12

IT Toolbox

the network system calls then provided under interrupt 21H gave all suppliers of network software the capability to standardize at least some of the access to LAN hardware. Most manufacturers of LAN software had announced or implemented support of NETBIOS for IBM LANs When DOS was extended in Version 3.1,

LANs as the User Interface in a Distributed Network

IT Toolbox

The appropriate solution was to have only the connection to the LAN with the LAN gatewayed to the larger network and providing the appropriate terminal emulation

LAN 122

The LAN: A History of Network Operating Systems Part 6

IT Toolbox

Token Ring) LANs resulting in the capture of a much larger market share." These conclusions were largely based on assumptions, at the time, that growth in the marketplace will come largely in LANs based on international standards In 1987 it was said, "throughout the 1990s we should anticipate that there will be a growth in 802.3 Ethernet) and 802.5

The LAN: A History of Network Operating Systems Part 3

IT Toolbox

Even though the earliest LANs were of this genre, by 1989 it appeared that they were on the way out. We will take a close look at peer-to-peer LANs at a deeper level in some future posts By 1992, however, new life had been breathed into peer-to-peer networking by both Novell and Microsoft, along with the popularity of Artisoft's LANtastic.

Proper LAN Testing Equipment Part 5

IT Toolbox

The LAN protocol analyzer can capture, record, and analyze frames that have been transmitted on the LAN. They must therefore contain a NIC for that particular LAN, and will attach to the backbone cable in the same way that any workstation would connect

LAN 130

The LAN: A History of Network Operating Systems Part 10

IT Toolbox

In the past, if we wished to attach some other random LAN to this system, we typically needed a gateway to perform protocol conversion from whatever the LAN was using (assuming that it was not running the same DECnet protocol) to the DECnet protocols

Origins of Linking LANs

IT Toolbox

In an organizational context, networks provided the means for allowing the computing power available to be used to its most complete extent

LAN 130

Other Dead LAN Strategies

IT Toolbox

Companies such as Bridge Communications, Ungermann-Bass, AT&T, and Wang were major players, or at least they were attempting to be

LAN 122

Proper LAN Testing Equipment Part 4

IT Toolbox

The digital (or discrete) signal levels present at the LAN interfaces to PCs, printers, modems and other peripherals are the test points most familiar to network managers

LAN 130

The LAN: A History of Network Operating Systems Part 11

IT Toolbox

The network microcode was the foundation for program control of the IBM LANs; it resides in ROM on the Adapter Card, on diskette, or on the PC's motherboard The NETwork Basic Input Output System (NET-BIOS) was introduced at the same time IBM announced the PC Network in 1984.

Proper LAN Testing Equipment Part 3

IT Toolbox

Given the digital transmission nature of baseband LANs, one might easily overlook the need for analog test equipment. Three devices are valuable additions to the tool kit: the volt-ohm-milliameter (VOM), the oscilloscope, and the transmission impairment measurement system (TIMS

LAN 133

The Maturation of LANs

IT Toolbox

A good example was Novell's NetWare 4.x product, announced in mid-1993. Competition from IBM?s s OS2 and Microsoft?s s Windows NT server would soon eclipse Novell?s s efforts

LAN 100

Remembering IBM LAN Server Part 1

IT Toolbox

Early versions of OS/2 required an IBM brand machine to run, although this was no longer a requirement by 1994

LAN 122

Secure LAN Messaging

Galido

Softros LAN Messenger is an easy-to-use LAN messaging application for safe, secure and effective intra-office communication and does not require a server or Internet to run and is very easy to install. Softros LAN Messenger. LAN, WAN, VPN and VLAN Support.

LAN 56

The Impact of Digital's DNA on LANs

IT Toolbox

DEC's implementation of Ethernet was sufficiently important to its view of networking. As a note, DEC was bought out by Compaq which was later acquired by HP

LAN 126

Historical IBM Microcomputer Hardware/Software LAN Products

IT Toolbox

The concept of an overarching connectivity architecture such as SAA was one approach to managing these compromises. One clearly evident (if not explicitly stated) IBM strategy in managing outside competition was to coopt popular technology

LAN 122

PowerShell: Enable Wake-On-LAN

Mick's IT Blog

This script will enable WOL and test to make sure it has been set. It will return whether it was a success or failure both to a log file and the screen. This script was written to also be incorporated with my new build logging process that I am getting ready to release soon.

LAN 124

Some final notes on MANs vs LANs

IT Toolbox

With the development of higher-speed (14,400 b/s and higher), reasonably priced telephone modems, the situation was changing. Because analog telephone service is electronically noisy, however, the extensive error-correction techniques necessary for high-speed dial access service resulted in unpredictable service, which may limit throughput

LAN 122

The LAN: A History of Network Operating Systems Part 7

IT Toolbox

The fileservers were usually high-performance PCs running under some operating system that allows multiple activities to take place concurrently. Two approaches have been taken by NOS manufacturers

The LAN: A History of Network Operating Systems Part 9

IT Toolbox

In the early 1990s, there seemed to have been some convergence on the use of 802.2 (LLC) LLC) and 802.3/802.5 Mac sub-layers as the basic Physical and Data Link Layer technology. Every major manufacturer provided this alternative, and over time it became a common methodology employed

The Era of LANs and Multiuser Systems

IT Toolbox

Where have you seen a terminal lately? No where. PCs very quickly became those terminals through emulation software. PCs could be both and do both better. The era of terminals was dead

LAN 116

Proper LAN Testing Equipment Part 2

IT Toolbox

Volumes have been written regarding the damage that electrical transients, surges, and improper grounding techniques can cause to sensitive computer equipment ? including many of my previous posts. Instead of providing details on the subject of power protection per se, I will concentrate this time on test equipment that a typical network administrator might use

LAN 133

Proper LAN testing Equipment Part 1

IT Toolbox

A variety of devices, including cabling system testers, power line monitors, and analog and digital interface diagnosis equipment will be discussed. This is by no means an exhaustive list. Each network, because of its uniqueness, will require additions and deletions to this smorgasbord. Use it only as a guide?a a starting point for assembling your own tool kit

LAN 133

The LAN: A History of Network Operating Systems Part 8

IT Toolbox

In addition to the network architectures mentioned above, other protocol or protocol-like issues were of great importance

Putting Together Your LAN Troubleshooting Toolkit

IT Toolbox

After seeing this smorgasbord of equipment available for helping you to test and troubleshoot your network, the next logical question is, "Which tools should I purchase for my network?" Here are some guidelines

LAN 126

The LAN: A History of Network Operating Systems Part 5

IT Toolbox

In general, pipes are software developers' tools for easily creating communications routines in software without having to explicitly control and issue commands to the communications hardware

The LAN: A History of Network Operating Systems Part 2

IT Toolbox

Before proceeding further, a brief comment on the use of the terms "proprietary" and "open system" is probably in order

The LAN: A History Network Operating Systems Part 1

IT Toolbox

Under the best of circumstances, the end-user should not even know that a network exists. If he wishes to do something simple, like copy a file from one place to another, it should be possible to use something like the old MS/DOS copy command and simply type: COPY c:mydata.dat p:yourdata.dat.