Network-based IP Video surveillance cameras are great, but they are not like the SIP phones. You can connect a SIP phone to any IP PBX that supports SIP (most of...
Category: Protocols
In our homes/offices, we just need to authenticate with the Wi-Fi network once. After that, we don’t need to authenticate every time we connect to the Wi-Fi network as the...
What is LLDP? The full form of LLDP is Link Layer Discovery Protocol. It simplifies the deployment of access devices and enhances endpoint mapping, troubleshooting and management. LLDP is an...
Link Aggregation Groups (LAG) and Link Aggregation Control Protocol (LACP) are methods to provide more than one link between two switches and automate its configuration and maintenance, respectively. Let us...
TACACS+ is a AAA Protocol (Authentication Authorization and Accounting Protocol) that allows secure user access to network devices by controlling who can access the device and what they are allowed...
Neighbor Discovery Protocol in IPv6 is similar to Address Resolution Protocol (ARP) in IPv4. The main purpose of both the protocols is to enable a host (node) to determine the...
Network Ports: When one computing device wants to communicate with a remote computing device, it needs two important parameters to reach and communicate with it. First, it needs the IP...
VRRP (Virtual Router Redundancy Protocol) provides fail-over/ redundancy for critical gateway network components like Routers, L3 Switches, Firewalls/UTM’s, etc. VRRP eliminates single point of failure at the gateway level and...
In this article, let us first look at an example of what happens when two computers – CP1 & CP2 try to communicate with each other and through this example,...
DHCP refers to Dynamic Host Control Protocol. DHCP is responsible for dynamically assigning IP addresses to all the computers in a network immediately after the computer starts. Let us learn...
“The goal of the Openflow initiative is to create an overlay mechanism that directs where packets go. This sits on top of the network of routers and switches that are...
Network Time Protocol is used to synchronize the time between various devices (clients) in a network as more applications (like precision manufacturing, real time – data, voice) depend on accurate...
In large networks, Layer-3 Switches/ Routers are important and inevitable. They help contain the broadcast domain by sub-dividing the network in to various segments. But once a network is segmented,...
In this article, we will have a look at BGP – Border Gateway Protocol, a routing protocol that made the Internet possible! We will also have a look at IBGP...