Most of us using mobile devices such laptops, tablets, phones etc. And today, Wireless LAN ( WLAN ) is a very important part of network design. Here is a simple topology example for Wireless LAN ( WLAN ). Simply clients are connected …
Let’s do some routing and we are getting started with EIGRP : Enhanced Interior Gateway Routing Protocol. First we need to answer the question “what is eigrp” ? EIGRP is a dynamic routing protocol and provides us some great features. It …
PSTN voice calls require 64 kbps bandwith, VOIP voice calls require 8 kbps bandwith. Here is a good entry for “why we use VOIP (Voice Over IP) ? ” question. VOIP is a great way for the corporates to make their …
It’s time to take a look at VLAN trunking protocol ( VTP ). VTP is a protocol that provides VLAN configuration to spread to the whole network. Using the Layer – 2 frames, VTP provides us to change VLAN names, …
HSRP has a brother whose name is VRRP ! As you know we told that HSRP is a Cisco proprietary protocol. The difference between VRRP and HSRP is this, VRRP is an industry standard. There are just some terminology changes …
It’s time to talk about trunking and native vlan. Well perhaps it would be better if we post this article before VTP but not so much problem i think !Trunking works at Layer-2 of OSI referance model and carries multi …
After overview of EIGRP , it is time to take a look at EIGRP configuration. EIGRP configuration is really awesome and not so hard if you compare with OSPF or etc. Let’s take a look to figure below and configure this topology …
Now we are gonna make another great protocol about switching : STP ( Spanning Tree Protocol ) WHAT IS STP ? STP is a protocol that avoids loops within Layer – 2 communication. The algorithm of the protocol creates a …
STP is a really great feature as you know and after examining PVST, it is time to take a look to RSTP ! The first letter “R” , refers to Rapid ! As you can understand from it’s name, rapid …
If you have really private traffic and want to isolate it at Layer-2 level , all right, you are welcome to Private VLAN. You can think a private VLAN like “VLAN in a VLAN”.There are many ways to set …