VLAN Trunking Protocol (VTP) & VTP Modes

What is a VLAN Trunking Protocol (VTP)? “VTP allows a network manager to configure a switch so that it will propagate VLAN configurations to other switches in the network” VLAN Trunking Protocol (VTP) is a Cisco proprietary Layer 2 messaging…
How to Configure OSPF in a Single Area?

OSPF stands for Open Shortest Path First and it represents a routing protocol belonging to the group of link-state routing protocols. OSPF routing protocol is classified among the best dynamic protocols that exist in networks today. It is also considered to…
How to Troubleshoot OSPF?

OSPF is one of our more complicated routing protocols, and it can be pretty intimidating, especially at first. But once you have mastered how to configure this Link State Protocol, the first thing you realize is that it is built…

OSPF is an interior gateway protocol that routes Internet Protocol (IP) packets solely within a single routing domain (autonomous system). It gathers link state information from available routers and constructs a topology map of the network. The topology determines the…
DHCP & DHCP Operation

DHCP (Dynamic Host Configuration Protocol) works in a client/server mode. DHCP enables clients on an IP network to obtain or lease IP address or configuration from a DHCP server. This reduces workload when managing a large network. DHCP protocol is…

Network security is a completely changing area; new devices like IDS (Intrusion Detection systems), IPS (Intrusion Prevention systems), and Honeypots are modifying the way people think about security. Companies are spending thousands of dollars on new security devices, but forgetting…
Static Routing vs. Dynamic Routing

For routing between routers to work efficiently in an internetwork, routers must have knowledge of other network IDs or be configured with a default route. On large internetworks, the routing tables must be maintained so that the traffic always travels…
Core Topics Covered on the CCNA Exam

Passing the Cisco CCNA certification is not an easy task. Cisco ensures passing the CCNA remains prestigious by maintaining the difficulty level of the CCNA exam by changing the exam pattern regularly. With the difficulty level being where it is,…
Cisco IPv6 Enabled Routers

Which routers are IPv6 enabled? Can anybody suggest me any IPv6 enabled routers? (Please give the detailed information, like brand, type etc.) Alright, Cisco focuses on training, routers, switches, wireless access points, optical networking and information security. As the Internet…
Classification of Routing Protocols

A routing protocol is a protocol that specifies how routers communicate with each other, disseminating information that enables them to select routes between any two nodes on a computer network, the choice of the route being done by routing algorithms.…
What Are the Basic Cisco Router Commands?

Cisco routers are manageable network devices. It means that they have the Cisco IOS software for network and internetwork management. The Cisco’s IOS software delivers network services and enabled networked applications. The Cisco IOS is the CLI based software at…
CISCO, Why We Need IPv6 Now?

Which of the following is a reason why IPv6 has been developed? a. IPv4 addresses are not secure. / b. IPv4 addresses are running out. / c. Dynamic address allocation is desired. / d. Mobile IP networking is needed. What…