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Arista EOS lab 2 of 20

VLANs and trunks with SVIs and LLDP

Segment Northwind's operations floor into VLANs, carry them over an 802.1Q trunk with a deliberate native VLAN, and route between them with switched virtual interfaces on the core switch.

Run this lab

It needs Lite: its 5 nodes are set to 5 vCPU and 5,632 MB in total. That fits the free demo too.

In your workspace: Shared, then Arista EOS guided labs, then 02 - VLANs and trunks with SVIs and LLDP

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Level
Beginner
Time
About 55 minutes
Nodes need
5 vCPU, 5,632 MB
Smallest plan
Lite

The scenario

Northwind Data's operations floor is one flat network: staff PCs, printers and the build server all share VLAN 1, and a broadcast storm last week took everything down. You will split the floor into VLANs, trunk them from the access switch acc1 to the core switch core1, and make core1 the default gateway for every VLAN.

DeviceInterfaceVLAN / modeAddressConnects to
core1Ethernet1trunk, native 99–acc1 Ethernet1
core1Ethernet2access 30–srv30
core1Vlan10 / Vlan20 / Vlan30 / Vlan99SVI10.10.10.1 / 10.10.20.1 / 10.10.30.1 / 10.0.99.1 (/24)–
acc1Ethernet1trunk, native 99–core1 Ethernet1
acc1Ethernet2access 10–h10
acc1Ethernet3access 20–h20
acc1Vlan99SVI10.0.99.2/24, gateway 10.0.99.1–
h10eth0–10.10.10.11/24, gateway 10.10.10.1acc1 Ethernet2
h20eth0–10.10.20.11/24, gateway 10.10.20.1acc1 Ethernet3
srv30eth0–10.10.30.100/24, gateway 10.10.30.1core1 Ethernet2

VLAN names: 10 USERS, 20 PRINTERS, 30 SERVERS, 99 MGMT.

What you’ll practise

  • Document a topology from LLDP before changing it
  • Create named VLANs and assign access ports
  • Build an 802.1Q trunk with a native VLAN and an allowed-VLAN list
  • Enable IP routing and create SVIs as default gateways
  • Give a layer 2 switch a management SVI and default route
  • Read the MAC address table, trunk and switchport status

The tasks

  1. Document what is there
  2. Create the VLANs
  3. Assign the access ports
  4. Build the trunk
  5. Address the hosts and test inside each VLAN
  6. Route between the VLANs on core1
  7. Manage the access switch in VLAN 99

The Lab Tasks pane has the scenario, these tasks, the checks to run, hints and the full solution.

Topology and devices

The network as it opens in EVE-NG, drawn from the lab’s own canvas, and the image each node runs.

Topology of VLANs and trunks with SVIs and LLDP5 nodes, 4 links. Every link is listed as text below the diagram.core1acc1srv30h10h20Ethernet1Ethernet1Ethernet2eth0Ethernet3eth0Ethernet2eth0
5 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • core1 Ethernet1 to acc1 Ethernet1
  • core1 Ethernet2 to srv30 eth0
  • acc1 Ethernet2 to h10 eth0
  • acc1 Ethernet3 to h20 eth0
Nodes in VLANs and trunks with SVIs and LLDP, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
core1Arista vEOSveos-4.33.1.1F1 vCPU, 2,048 MB
acc1Arista vEOSveos-4.33.1.1F1 vCPU, 2,048 MB
srv30Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
h10Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
h20Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB

How to open this lab

  1. Sign in to your workspace at lab.cloudlabbox.com.

  2. In File Manager, open Shared, then the folder Arista EOS guided labs.

  3. Open 02 - VLANs and trunks with SVIs and LLDP and start its nodes, then open Lab Tasks for the scenario and the steps.

The lab is read-only. You can start the nodes and configure the devices, but changes to the topology can’t be saved. To change it, rebuild it in your own folder.

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CloudLabBox is independent of Arista Networks. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.