Overview: VLAN Trunking Protocol (VTP) is used to automatically update vlan configuration on a LAN network of switches Study Notes: VTP (v1 & v2) – VLAN Trunking Protocol (VTP) VTP is responsible for synchronizing VLAN information within a VTP domain and reduces the need to configure the same VLAN information on each switch thereby […]
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 […]
Overview: Adding and removing vlans on a trunk can be done without interruption to network traffic, if you do it the right way Study Notes: How to add and remove VLANs on a trunk. It’s probably a good sign when your network needs to expand It’s also a good thing to limit broadcast traffic […]
Overview: Trunk ports are used to interconnect switches Study Notes: Trunk ports Trunk ports are used to connect layer 2 devices together (when you need to expand your network) This video shows you how to initially configure trunk ports. PacketTracer Lab: CCNA-2.5.a-How-to-configure-trunk-ports.pkt Video:
Overview: If a vlan is not configured on a switchport, it will fall under the default VLAN. The default VLAN is VLAN 1. Study Notes: How to configure a default vlan Technically, you don’t configure a default vlan VLAN 1 is the default vlan that comes on all Cisco switches and you can’t change […]
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) […]
Overview: How to configure a normal vlan on a switch. Study Notes: How to configure a normal vlan on a switch. Normal vlans range from 1 to 1005 Extended vlans range from 1006 to 4094 Depending on your IOS, you may or may not be able to configure extended vlans. Luckily for us, this […]
Overview: IPv6 Stateless address autoconfiguration is similar to DHCP in IPv4. Routers running IPv6 can give the network prefix and gateway address to clients looking for an IPv6 address. The device needs a global IPv6 address to be able to connect to the network (and internet). IPv6 stateless autoconfiguration is a way for a device […]
Overview: IPv6 addressing was designed to address the deficiencies in IPv4. It is based on 128-bit hexadecimal IP addresses, which provide a much greater amount of addresses (3.4×10^38 or 340 undecillion) while still meeting requirements to be heirarchical and scalable. So what happened to IPv5? I always assumed IPv4 was so because it used four […]
Overview: IPv6 addressing is designed differently than IPv4. Subnetting is used in IPv4 to more efficiently use the small number of available addresses. IPv6 has a large enough address space without subnetting to accommodate devices for the foreseeable future. The local area subnet always uses 64 bits for the routing prefix and 64 bits for […]
