A guide using best practices to configure vlan trunking

Monitoring traffic using SPAN can be useful in multiple situations. The main purpose is to provide an easy way to sniff traffic in a switched environment. The monitoring device could be a sniffer, intrusion detection device, or some other type of traffic analyzer. This article explains the guidelines for usage only with the configuration steps needed.

Explanation of various parts that make up the vtp protocol.

Put controls in place to combat against end users putting desktop switches on the end of an ethernet connection to increase number of ports available.

Protect your network from unauthorized dhcp servers assigning ip addresses to clients. This is another step in properly securing a network from untrusted services.