how to configure Native VLAN on a Trunk Links
As a reminder, a trunk is a link intended to convey the traffic of several VLANs. Since a standard Ethernet frame does not have informati...
What is link layer discovery protocol (LLDP)
LLDP is a standardized network discovery protocol (IEEE 802.1AB) designed to supplement the multitude of proprietary protocols of the sa...
OSPF over Frame-Relay: Non-Broadcast
Here is the fourth part of the configuration of our OSPF lab. In this article, we will discuss how to configure OSPF to work on a Frame-...
Spanning-Tree Protocol(STP): Port cost vs Port priority
When Spanning-Tree (STP) solves a loop in a network of switches, it follows a series of parameters to determine the best path to the Root B...
OSPF Virtual Link
Here is the third part of the configuration of our OSPF lab. The continuation of the last article . After configuring the area 0, the area 1...
How to configure Multi-area OSPF
This article is the second (but not the last) part of the OSPF lab configuration presented in the previous article( Configuring OSPF in a si...
How to configure DHCP on a Cisco router
The DHCP (Dynamic Host Configuration Protocol) protocol is a feature to provide machines that require a full IP, IPv4 address, subnet mask,...
VLAN Access-List
ACLs (Access Control Lists) traditional, sometimes also called RACL (Router-based ACL) allow us to filter traffic that passes from one netw...
How to configure trunk port on cisco switches
A trunk, what is it? A trunk is a link between two devices, him more often between two switch, configured so that you can move frames Ethe...
