Category: Introduction to Ethernet

MAC filtering

May 30, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified May 30, 2016

MAC filtering

Mac Filtering In computer networking, MAC Filtering (GUI or filtering, or layer 2 address filtering) for an access method in which the 48-bit address assigned to each network is used to determine network access. MAC addresses are uniquely assigned to each card, so using MAC filtering on network permits and refuse network access to specific devices through the blacklists and whitelists use. While restricting access

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Twist-on wire connector

May 26, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified May 26, 2016

Twist-on wire connector

An assortment of twist-on wire connectors Twist-on wire connector End view metal inserts Twist-on wire connector Twist-on connectors used in a junction box Twist-on wire connectors are a type of electrical connector to establish two or more low-voltage (or extra-low voltage) electrical conductors. They are widely used in North America, but are not approved for use on low-voltage wiring in the countries of the European Union and many other countries

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IPTV based converged services

May 20, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified May 20, 2016

IPTV based converged services

iptv Another advantage is the opportunity for integration and convergence. This possibility is enhanced by the use of IMS-based solutions. Converged services imply interaction of existing services in a seamless manner to create new value-added services. One example is on-screen Caller ID, getting Caller ID on a TV and the ability to go (to be sent to voice mail, etc.). IP-based services will contribute to the efforts to mainstream

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Electret microphone

May 20, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified May 20, 2016

Electret microphone

An electret microphone a kind of electrostatic-based condenser microphone, which eliminates the need for a power supply with a fixed polarizing charged material. An electret is a stable dielectric material with a permanently installed static electric charge (which, because of the high resistance and chemical stability of the material, not run down hundreds of years). The name comes from electrostatic and magnet

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PROFINET Unplugged – An Introduction to PROFINET IO SYNOPSIS

May 18, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified June 24, 2016

PROFINET Unplugged – An introduction to PROFINET IO SYNOPSIS

This article provides an overview of PROFINET IO, a high-level network for industrial automation applications. Built on standard Ethernet technologies, PROFINET IO uses traditional Ethernet hardware and software to define a network that structures the task of exchanging data, alarms and diagnostics with programmable controllers and other automation controllers. PROFINET IO is one of the two open Ethernet standard automation “views&#8221

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IBM 5250

May 13, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified May 16, 2016

IBM 5250:-

ibm 5250 IBM 5250 is a family of block-oriented terminals originally introduced with the IBM System / 34 midrange computer systems in 1977. T also connected to the later System / 36, System / 38 and AS / 400 and System i systems and IBM Power Systems Systems which IBM i. Components 5250 devices can be directly attached to the host or remotely communicate with Synchronous Data Link Control (SDLC), and to

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Operations administration and management

April 29, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified April 29, 2016

Operations Administration and Management

Operations administration and management is the processes, activities, tools, standards, etc. involved in the operation, administration, management and maintenance of a system. This applies generally to computer networks or hardware. In particular, Ethernet operations, administration and maintenance (EOAM) is the protocol for installing, monitoring and troubleshooting Ethernet

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Message authentication code

April 25, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified April 26, 2016

Message authentication code

Message Authentication Code

Definitions     Safety     Message Integrity Code     Implementations     Standards     One-Time MAC

In cryptography, a message authentication code (MAC) is a short piece of information used to provide a message, in other words, in order to confirm that the message is coming from the said transmitter (the authenticity) and is not changed during (its integrity verification) . A MAC algorithm, also called an encrypted (cryptographic) hash function (generating But cryptographic hash function only one of the possible ways to MAC)

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Distance Vector Multicast Routing Protocol

April 21, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified April 22, 2016

Distance Vector Multicast Routing Protocol

The Distance Vector Multicast Routing Protocol (DVMRP), defined in RFC 1075, is a routing protocol used to facilitate information sharing between routers in the transport of IP multicast packets below. It formed the basis of the Internet’s historical multicast backbone, Mbone.

Operation:-

The protocol is based on the RIP protocol.  The router generates a routing table with the multicast group to which they meet the corresponding distances (ie

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Electrical polarity

April 21, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified April 22, 2016

Electrical polarity

Electrical Polarity

Positive And Negative          In Cars          AC Systems

Electrical polarity is present in each electric circuit. Electrons from the positive to the negative pole. In a direct current (DC) circuit, one pole is always negative, the other pole is always positive, and the electrons flow in one direction. In an alternating current (AC) circuit reverses both poles alternately positive and negative and the direction of the electron flow.

Positive and negative:-

In DC circuits, the positive terminal usually marked red

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Edge Connector

April 21, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified April 22, 2016

 Edge Connector

Edge Connector An edge connector is the portion of a printed circuit board (PCB), consisting of traces that to the edge of the plate which are intended for connection to a terminal. The edge connector is a money-saving device, because it requires only a single discrete female connector (the male connector is formed from the edge of the PCB’s), and they also tend to be fairly robust and durable. They are often used in computers expansion

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Dial up Internet access

April 14, 2016 by zafar mahmood

Filed under Introduction to Ethernet

Last modified April 18, 2016

Dial up Internet access:-

Availability     Replacing Broadband     Performance     With the aid of compression exceeds at 56k

Dial up is a form of Internet access that makes use of the facilities of the public switched telephone network (PSTN) in order to establish a connection to an Internet service provider (ISP) through keying in a telephone number on a conventional telephone line. computer or router from the user uses a modem connected to encrypt and decrypt information to and from audio frequencies, respectively. Despite the increase in

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