Overview of building a system backup network along with answers to common design considerations.

This article will focus on upgrading software on a Cisco 3750 switch stack comprised of two switches. There are procedures for upgrading one of the access switches and then letting the stack manage the distribution/installation of software on the other switches. However, there is some comfort to doing it all manually and checking things after each step.

Using private vlans to secure hosts on the same subnet from communicating with each other. This scenerio is desirable in places such as DMZ networks, where non-related hosts need to be secured behind a common firewall interface.

Many times a network engineer needs to quickly find where a particular host is plugged into the network. This article explains how to accomplish this using a manual discovery process that can be performed rather quickly,

Smartports macros provide a way to save and share common switch port configurations. You can use Smartports macros for repetitive configuration tasks, such as setting up interfaces for use with a particular type of system. Even for seasoned professionals, macros offer advantages such as consistent configuration.

This article contains notes on Cisco Catalyst 3750 switch stack operation. Listed are quick references to useful commands when administering this model of switch.

This short guide explains how to check memory installed on a Cisco device and explains the output from show commands that describes ram and flash resources.

This article explains how to use an old Cisco router as a replacement for the typical small office/home office gateway router.

Use the standards based VRRP configuration to provide redundant gateway support on a Cisco network.

Learn the basic usage of Cisco access lists to secure a host on the network.