Tag: Ethernet

go-green-it

25

Apr2014
Energy Efficient Ethernet (EEE) enables power reduction on transmission when there is nothing to transmit. Why? Most Ethernet ports remains always on running at maximum power, irrespective of whether there is data to transmit or not. Ethernet port traffic is bursty remaining idle for majority of its operation. The EEE enabled switch could reduce it’s […]
April 25, 2014Praveen Bahethi

12

Jan2014

What is Ethernet?

Ethernet was developed by Robert Metcalfe at Xerox PARC in the early 70s and is a packet switching technology that uses Carrier Sense Mulit-access with Collision Detection (CSMA/CD). Carrier Sense The device (Network Inteface Card) determines if the media (wire) is available, no electrical signalling we can transmit. Multi-access All devices can sense the ... Read More
January 12, 2014Praveen Bahethi

26

Dec2013
Switches register the source MAC address seen on their ports to generate a MAC address table also known as Content Addressable Memory (CAM) table.   A MAC address table has the source MAC address the port that learned it a timer to aging out the VLAN the source MAC address belongs to When a switch ... Read More
December 26, 2013Praveen Bahethi