CCNA 6.1: Configure, verify, and troubleshoot port security

Overview: Port security can be used on an interface to identify and limit the MAC addresses of clients that are allowed to access that port.   Study Notes: Port security identifies the MAC addresses of clients allowed to forward traffic through an interface Port security is applied to access ports Port security cannot be applied […]

CCNA 2.5.c: DTP – Dynamic Trunking Protocol (DTP)

Overview: Dynamic Trunking Protocol is used to automatically negotiate the state of switchports   Study Notes: DTP – Dynamic Trunking Protocol (DTP) Dynamic Trunking Protocol is how switchports automatically negotiate their mode before you ever configure them A switchport can be set to one of four modes – Dynamic Auto (default), Dynamic Desirable, Trunk or […]

CCNA 2.4.a: Access ports (data and voice) (FREE LAB!)

Overview: How to configure an access port for data and voice   Study Notes: A data and voice access port is required when you have a computer connected to a VoIP phone at a desk The switchport is configured with a voice vlan and a data vlan This is called a Multi-VLAN Access Port (MVAP) […]

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