ccna wireless book pdf

ccna wireless book pdf.VLAN ConnectivityUnderstand the difference between access links and trunk connections and the devices they can connect to: switches, routers, and servers. Be familiar with 802.1Q, how it tags frames, and what a native VLAN is.VLAN Trunking ProtocolBe sure to know VTP like the back of your hand; it is probably the most important topic in this chapter. Understand the function of VTP: Make sure the switch's VLAN configuration is consistent. Understand the similarities and differences between the various VTP modes (server, client, and transparent) that the switch can be in, and how the switch will handle VTP messages in each mode. Understand the purpose of VTP passwords, domain names, and configuration revision numbers. Be familiar with how VTP pruning works.sea VLANBe familiar with the syntax of the vtp command, how to configure interfaces as trunk ports and access ports, and how to assign access ports to VLANs o Understand how DTP works and the modes that can be used to establish trunk connections. Be sure to know the output of the commands show vtp statusshow interface switchport, show interface trunk, and showvlan well enough to be able to determine the switch's VLAN configuration and troubleshoot the configuration. status as well as troubleshoot the configuration.12.5 Authentication SummaryA VLAN is a group of devices within the same broadcast domain (subnet). Routers are required to transport traffic between VLANs. VLANs that assign devices in a static manner are also known as port-based VLANs O Access links connect devices that process regular frames; trunk connections modify the frames to carry VLAN information. Ethernet trunking methods include ISL and 802.1Q, where 802.1Q inserts a 4-byte field and recalculates the FCS of the Ethernet frame. the 2960 switch supports only 802.1Q.VTP is a Cisco-specific protocol that transmits VLAN information over trunk ports. Switches must be located in the same domain to share information. There are three VTP modes: client, server, and transparent. Server and transparent switches can add, modify, and delete VLANs, where the server switch also advertises the changes made. Clients can only receive updates from the server switch. There are three types of VTP messages: announcement requests, subnet announcements, and summary announcements. The server generates a summary announcement every 5 minutes and propagates it over the trunk connection. The configuration revision number is used to determine which server switch has the latest VLAN information.VTP pruning is used to prune out inactive VLANs between switches, and it requires that the switch be in server or client mode.On the 2960 switch, use the commands vtp domain and vtp server|client| transparent to configure VTP,where the mode defaults to server. To configure the VTP password, use the command vtppasswordo