Lab Simulation 37
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 the device console(s) and perform the tasks.
- Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
- All necessary preconfigurations have been applied.
- Do not change the enable password or hostname for any device.
- Save your configurations to NVRAM before moving to the next item.
- Click Next at the bottom of the screen to submit this lab and move to the next question.
- When Next is clicked, the lab doses and cannot be reopened.
Topology

Tasks
Task 1
Configure the trunks between Sw1 and Sw2 on ports E0/0 and E0/1 using the IEEE standard frame tagging method.
- Only the VLANs for the PCs should be permitted across the trunks.
- Routers are simulated as PCs and are preconfigured with IP Addresses.
- PC configurations must remain unchanged.
Task 2
On Sw1 and Sw2, use IEEE 802.3ad link aggregation.
- Assign number 10 to the link.
- Combine E0/0 and E0/1 into a single logical link.
- Both links must negotiate aggregation.
Correct Answer:
See the below explanation
Explanation:
Task 1: Configure the trunks between Sw1 and Sw2 using IEEE standard frame tagging (802.1Q) Configuration for Sw1:
Switch1(config)# interface range Ethernet0/0 - 1
Switch1(config-if-range)# switchport mode trunk
Switch1(config-if-range)# switchport trunk allowed vlan 10,30
Switch1(config-if-range)# switchport trunk encapsulation dot1q
Configuration for Sw2:
Switch2(config)# interface range Ethernet0/0 - 1
Switch2(config-if-range)# switchport mode trunk
Switch2(config-if-range)# switchport trunk allowed vlan 10,30
Switch2(config-if-range)# switchport trunk encapsulation dot1q
Switchport mode trunk: Configures the interfaces as trunks.
Switchport trunk allowed vlan 10,30: Only VLANs 10 and 30 are allowed to pass over the trunk link.
Switchport trunk encapsulation dot1q: This uses IEEE 802.1Q for VLAN tagging, which is the standard for VLAN tagging.
Task 2: Configure IEEE 802.3ad Link Aggregation (LACP) on Sw1 and Sw2
Configuration for Sw1:
Switch1(config)# interface range Ethernet0/0 - 1
Switch1(config-if-range)# channel-group 10 mode active
Switch1(config-if-range)# exit
Switch1(config)# interface port-channel 10
Switch1(config-if)# switchport mode trunk
Switch1(config-if)# switchport trunk allowed vlan 10,30
Switch1(config-if)# switchport trunk encapsulation dot1q
Configuration for Sw2:
Switch2(config)# interface range Ethernet0/0 - 1
Switch2(config-if-range)# channel-group 10 mode active
Switch2(config-if-range)# exit
Switch2(config)# interface port-channel 10
Switch2(config-if)# switchport mode trunk
Switch2(config-if)# switchport trunk allowed vlan 10,30
Switch2(config-if)# switchport trunk encapsulation dot1q
Channel-group 10 mode active: Configures interfaces for LACP (IEEE 802.3ad) in active mode, allowing both links to negotiate aggregation.
Interface port-channel 10: This creates a logical interface to combine both physical links (Ethernet0/0 and Ethernet0/1) into a single logical link.
Switchport mode trunk: Ensures the port channel (logical interface) functions as a trunk.
Switchport trunk allowed vlan 10,30: Allows only VLANs 10 and 30 to pass through the trunk.
Switchport trunk encapsulation dot1q: Specifies IEEE 802.1Q as the tagging method.
Both trunks and link aggregation (LACP) are configured on the same ports.
LACP allows both switches to negotiate link aggregation dynamically.
The VLANs for the PCs are explicitly allowed over the trunk links.