Tag: 100

12

Jan2014

What is Ethernet?

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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

11

Jan2014

What is 802.1D Spanning Tree Protocol?

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Spanning Tree Protocol (STP) was created to allow for loop-free topologies in switch architectures.  Prior to STP,  any switch architecture that had a loop would end up with duplicate frames flooding between switches causing an outage.  Radia Perlman’s algorithm resolved the physical loop by creating a logical blocking solution stopping ... Read More
January 11, 2014Praveen Bahethi

03

Jan2014

What is a MAC Address?

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MAC Address stands for Media Access Control Address. It is an unique identifier which is brunt in on Network Interfaces Cards (NIC) and being used for host identification and communication between multiple hosts on a Local Area Network (LAN). MAC addresses live at Layer 2 of the OSI Model. MAC is also ... Read More
January 3, 2014Praveen Bahethi

02

Jan2014

What are VTP Modes and how is it advertised?

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There are three modes of operation for VLAN Trunking Protocol (VTP) Server allows creation, modification, and deletion VLANs and specify other configuration parameters, such as VTP version and VTP pruning, for the entire VTP domain. VTP servers advertise their VLAN configuration to other switches in the same VTP domain and synchronize their ... Read More
January 2, 2014Praveen Bahethi