The adoption of cloud computing has quickly become a key driving force for businesses today, as applications are moved out of on-premise data centres in a bid to innovate, cut costs and increase agility. Infrastructure-as-a-service (IaaS) is a model where a third-party provider hosts and maintains core infrastructure, including hardware, software, servers and storage on Read More
Month: February 2021
5 Reasons for Why You Should Use SUBTOTAL in Excel
SUBTOTAL formula is used to find out subtotal of a given range of cells. You give SUBTOTAL two things – (1) a range of data (2) type of subtotal. In return, SUBTOTAL will give you the subtotal for that data. Unlike SUM, AVERAGE, COUNT etc. which do one thing and only one thing, SUBTOTAL is versatile. Read More
How to Configure Embedded Packet Capture (EPC) for Cisco IOS
When enabled, the router captures the packets sent and received. The packets are stored within a buffer in DRAM and are thus not persistent through a reload. Once the data is captured, it can be examined in a summary or detailed view on the router. In addition, the data can be exported as a packet Read More
Understanding and Configuring 802.1X Port-Based Authentication
802.1X defines 802.1X port-based authentication as a client-server based access control and authentication protocol that restricts unauthorized clients from connecting to a LAN through publicly accessible ports. An authentication server validates each supplicant (client) connected to an authenticator (network access switch) port before making available any services offered by the switch or the LAN. Until Read More
LACP vs PAGP
In order to create maximum availability and stability for networks, link redundancy or redundant links are emphasized by enterprises and data centers when deploying networks. Etherchannel technology is the most effective way to achieve network redundancy by providing automatic recovery for the loss of a link. When configuring Etherchannel across network devices such as switches Read More
How to Convert Number to Text or Reverse in Excel
You can use the VALUE function to return just the numeric value of the text. 1. Insert a new column Insert a new column next to the cells with text. In this example, column E contains the text stored as numbers. Column F is the new column. 2. Use the VALUE function In one of Read More