ccna where to start

ccna where to start.Exam Essentials To verify trunking, use the command showinterfaces switchport|trunk0 Be sure to familiarize yourself with the output of this command. In this example, there is a trunk interface - aO/1: trunk mode is on, trunk protocol is 802.1Q, and native VLAN is VLAN loExam Essentials When you execute the command showmacaddress-table, if you find multiple MAC addresses associated with the same interface, it indicates that the interface is either a trunk connection or an access link connection and is connected to a switch or hub. Video 12.02 A multimedia demonstration of configuring trunks on a switch is included in the companion digital resource to this book. Hands-On Exercise 12.1Configuring Trunking on a SwitchThe previous subsections discussed how to configure trunking on a Cisco switch. You will complete this experiment using the Bosoifs NetSim simulator to create a trunk link between two 2950 switches (2950-1 and 2950-2). For a diagram of the network used by this simulator, see the Preface section of this book. After starting the simulator, click the tab Labs in the lower left corner of the window, then click the tab McGraw-Hill in the upper left corner (tab Standard and Custom to the right), and then double-click Exercies12-1, which will load the configuration done in the hands-on exercises in Chapters 10 and 11.1. on switch 2950-1, set the trunk mode of the connection between these two switches to trunk,and check the status. Is this trunk connection active? In the tab Lab Instructions, select 2950-1 from the drop-down list Devices, or click the label NetMap, then double-click the device icon 2950-1 o Enter configuration mode: execute the commands enable and configureterminal. enter interface configuration mode: execute the command interfacefa0/lo Set the trunk mode to trunk: execute the command switchportmodetrunko Exit configuration mode: execute the command end. use the command show interfaces trunk to verify the status. You may need to wait a few seconds. but the trunk connection should be established. If one end is in on or desirable mode and the other end is in mode on^ desirable or or auto (the default setting), a trunk connection will be established.2. Save the configuration of this switch: execute the command copy running-configstartup-configo3. On switch 2950-2Ji, set the trunk mode of the connection between these two 2950 switches to trunk, and verify the trunk status of the interface. In the tab Lab Instructions, select 2950-2 from the drop-down list Devices, or click the label NetMap, and then double-click the device icon 2950-2 to enter configuration mode: execute the commands enable and configureterminal. to enter interface configuration mode: oExecute the command interfacefa0/l. Set the trunk mode to trunk: Execute the command switchportmodetrunko Exit configuration mode: Execute the command end. use the command showinterfaces trunk to verify the status.4. save the configuration of this switch: execute the command copy running-configstartup-configoAt this point, you should be able to more comfortably configure trunking on the switch. The next section describes how to create VLANs and associate interfaces to