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1 October, 2019 | Jeff Melnick

Basics of Cisco Router Configuration

To start up a new Cisco LAN switch, all you have to do is plug in the Ethernet cables and power on the switch. However, you need to perform some basic Cisco router configuration before the basic router will start routing packets. In particular, the router needs to be told what interfaces (and which...
10 September, 2019 | Jeff Melnick

How to Manage and Save Running Config on Cisco Devices

Cisco IOS The Cisco device stack uses the Internetwork operating system (IOS), which controls the device’s performance and behavior. The Cisco IOS defines an interface called the Command Line Interface (CLI), which enables administrators to enter commands into a terminal emulation program. The...
20 August, 2019 | Jeff Melnick

Cisco Troubleshooting Commands at Your Service

Troubleshooting is about three big things: predicting what can happen, determining the anomalies , and investigating why that anomalies happened. Many network admins break down network infrastructure problems by analyzing the Layer 3 path through the network, hop by hop, in both directions. This...