Lab Simulation 38 Guidelines This is a lab item in which tasks will be performed on virtual devices. - Refer to the Tasks tab to view the tasks for this lab item. - Refer to the Topology tab to access

Question

Exhibits

Explanation

The lab simulation requires configuring two switches with specified VLANs, setting up switch access ports for combined data and voice traffic, and enabling vendor-neutral neighbor discovery (LLDP) on their inter-switch link.

Approach. The correct interaction involves accessing the command-line interface (CLI) for both Sw1 and Sw2 (likely through a console tab or icon as per lab guidelines) and executing specific Cisco IOS commands. The steps must be performed on both switches:

Step 1: Create and Name VLANs (Task 1)

• Enter global configuration mode: configure terminal
• Create Data VLAN 201: vlan 201
• Name it 'Sales': name Sales
• Exit VLAN configuration: exit
• Create Voice VLAN 202: vlan 202
• Name it 'Sales_Voice': name Sales_Voice
• Exit VLAN configuration: exit

Step 2: Configure Access Ports for Voice and Data (Task 2)

• Enter interface range configuration mode for E0/1-3: interface range e0/1 - 3
• Set the port mode to access: switchport mode access
• Assign the data VLAN: switchport access vlan 201
• Assign the voice VLAN: switchport voice vlan 202
• Exit interface configuration: exit

Step 3: Configure LLDP on e0/0 (Task 3)

• Enable LLDP globally: lldp run
• Enter interface configuration mode for E0/0: interface e0/0
• Enable LLDP transmission on the interface: lldp transmit
• Enable LLDP reception on the interface: lldp receive
• Exit interface configuration: exit

Step 4: Save Configuration

• Return to privileged EXEC mode: end
• Save the running configuration to startup configuration (NVRAM): copy running-config startup-config (or write memory)

Common mistakes.

• common_mistake. Common mistakes include:

1. Forgetting to create VLANs: The ports cannot be assigned to VLANs that do not exist yet. Always create VLANs first.
2. Using switchport mode trunk on E0/1-3: These ports connect to end devices (IP phones and PCs) and should be access ports, not trunk ports which are for switch-to-switch links or links to routers that carry multiple VLANs.
3. Missing switchport access vlan or switchport voice vlan: Simply setting switchport mode access is insufficient; the specific data and voice VLANs must be assigned.
4. Using CDP instead of LLDP: Task 3 explicitly states 'vendor-neutral protocol,' which refers to LLDP, not Cisco's proprietary CDP (Cisco Discovery Protocol). Failing to enable lldp run globally or lldp transmit/receive on the interface would also be incorrect.
5. Not configuring all specified interfaces: The task requires E0/1, E0/2, AND E0/3, so using interface range e0/1 - 3 is critical.
6. Incorrect VLAN IDs or names: Mismatched IDs or names would lead to configuration errors or a failure to meet the requirements.
7. Forgetting to save the configuration: Changes made in running-config will be lost upon reboot if not saved to startup-config (NVRAM) using copy running-config startup-config.

Concept tested. This question tests the following core Cisco IOS networking concepts:

1. VLAN Configuration: Creation, naming, and management of Virtual Local Area Networks.
2. Voice VLAN (Auxiliary VLAN): Configuring switch ports to support both a data VLAN for connected PCs and a voice VLAN for connected IP phones, allowing separate traffic handling for each.
3. Access Port Configuration: Correctly setting up switch ports to connect to end devices.
4. Link Layer Discovery Protocol (LLDP): Understanding and configuring this vendor-neutral Layer 2 protocol for network device discovery, an alternative to CDP.
5. Basic Cisco IOS CLI Navigation and Configuration Saving: Proficiency in entering commands in different modes and persisting configurations.

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