ccna wireless 640-722 pdf

ccna wireless 640-722 pdf.switch# show interface fastEthernetO/1 switchport Name: FaO/1 Switchport: Enabled Administrative mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dotlq Operational Trunking Encapsulation: native Negotiation of Trunking: Off Access Mode VLAN: 5 ( Inactive) Trunking Native Mode VLAN: 1 (default)In this example, notice that VLAN 5 is inactive, which indicates that the VLAN to which the interface belongs has been removed, making the interface unavailable.If there is a trunk connection between the switches, ensure that the trunk connection is configured correctly: use the command show interface trunk. ensure that the native VLANs on both ends of the trunk connection are the same: if they are different, the trunk connection will not be established.Also, if VTP is used, run the show vtp command to check it. Verify that a trunk connection is established between the switches, as VTP messages can only be transmitted over a trunk connection. If a server/client implementation is used, verify that the domain name and password (if used) of the VTP switch are the same. Also, all switches must be running the same VTP version (default is 1).3. Inter-VLAN Connection Failures If you encounter problems accessing devices in other VLANs, first confirm that you can ping the egress of the current VLAN - the default gateway (router).router) for the current VLAN. A common configuration error on a user's PC is that the default gateway is incorrect. If you cannot ping the default gateway, check the local VLAN connectivity issues as described in the previous subsection. If you can ping the default gateway, check the router's configuration and interfaces (see Chapter 15). Also, confirm that the router has a route to the destination VLAN (using the command showiproute), which is discussed in Chapters 18-20. IfIf there is a route to the destination VLAN, verify that the destination VLAN is configured correctly and that the default gateway in that VLAN can reach the destination device.Hands-On Exercise 12.2Configuring VLANs on the Switch The previous subsections discussed how to create VLANs and assign interfaces to them, and this experiment builds on that knowledge by asking you to do some configuration. For a diagram of the network used by the simulator, see the Preface section of this book. After starting the Bosons NetSim simulator, click the tab Lab, then double-click Exercise12-2, which will load the configuration required by Exercise 12.1. On switch 2950-1, verify that you can ping Host-1 connected to interface faO/3; in addition, ping Host-2o connected to interface faO/4 of switch 2950-1.2. 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 the CLI of the switch 2950-1, execute the commands ping192.168.1.10 and ping192.168.1.11, they should both succeed.