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Abigail Abanilla

a daily sojourner doing the impossible with God, family, church and a few hexadecimal figures.

Hi there! Welcome to my blog. I talk about Computers Networking, Programming and Music. Good mixture, eh? Hope you like it here. Drop me a line or two, will ya?
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CCNA 3 - LAN Switching and Wireless - VLANs

CCNA 3 – LAN Switching and Wireless – VLANs

Published by abigail abanilla on May 16, 2013 | Leave a response

Introducing VLANs What are VLANs? Virtual Networks. VLANs separate broadcast domains without the need of an additional router. VLANs are used to create multiple networks without having to add a physical interface on the router. VLANs logically separate IP networks. Why do we use VLANs? Security – Groups that have sensitive data are separated from [...]

Posted in CCNA, Networking | Tagged cisco ccna, cisco switch configuration, switch trunks, switching, switchport modes, troubleshooting vlan, trunk configuration, trunking, vlan configuration, vlans

CCNA 3 – LAN Switching and Wireless – Basic Switch Concepts and Configuration

Published by abigail abanilla on May 8, 2013 | Leave a response

After understanding how to design a LAN, we’ll now be studying the basic concepts and configuration of a network switch. As a review, a switch basically connects multiple network segments. Switch forwards packets to destination hosts. There are 2 forwarding methods of a switch: Store and Forward (current models use this) – the switch receives [...]

Posted in CCNA, Networking | Tagged ccna switching, cisco, cisco switch, configure speed and duplex on switch, mac address table, switch forwarding methods, switch management, switching security
CCNA 2 - Routing Protocols and Concepts - Intro to Routing and Packet Forwarding - A Day in the Life of a Packet

CCNA 2 – Routing Protocols and Concepts – Intro to Routing and Packet Forwarding – A Day in the Life of a Packet

Published by abigail abanilla on May 4, 2013 | 1 Response

PC1 needs to send data to PC2 which is on another network. PC1 examines the data, encapsulated in a Layer 3 PDU. PC1 looks at the destination address and the subnet mask and performs the AND process to determine the destination network address. PC1 performs the same AND process to its own IP address and [...]

Posted in CCNA, Networking | Tagged arp cache, ccna 2, packet, routing, routing table
image from http://rekrowten.files.wordpress.com/

CCNA 2: Routing Protocol and Concepts: Intro to Routing and Packet Forwarding: The Routing Table

Published by abigail abanilla on April 29, 2013 | Leave a response

This is a continuation of “Inside the Router”. What is a routing table? You wouldn’t have a clue if you don’t know what a router is. As a review, routers forward data packets to their destination networks. Before they do, routers have to know where to send the data packets, where these destination networks are. How? They [...]

Posted in CCNA, Networking | Tagged ccna 2, cisco routers, cisco routing, cisco study, learn ccna, routers, routing table
CCNA 2: Routing Protocol and Concepts - Intro to Routing and Packet Forwarding - Basic Router Configuration

CCNA 2: Routing Protocol and Concepts – Intro to Routing and Packet Forwarding – Basic Router Configuration

Published by abigail abanilla on April 22, 2013 | Leave a response

Topics: Naming the router Setting passwords Configuring interfaces Configuring a banner Saving changes on a router Verifying basic configuration and router operations

Posted in CCNA, Networking | Tagged basic router configuration, ccna, cisco, cisco routers, global config mode, LAN, router interface, routing table, user exec mode, wan
image from www.cisco.com

CCNA 2 Routing Protocols and Concepts: Intro to Routing and Packet Forwarding: Inside the Router

Published by abigail abanilla on April 20, 2013 | 2 Responses

Read and learn! Topics: The Router Its role on the network Its hardware & software components The bootup process Routing process

Posted in CCNA, Networking | Tagged ccna preparation, cisco ios, cisco router, router hardware, router software components, routing process, study ccna, study networking
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