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VXLAN EVPN lab 13 of 14

Operations with MAC mobility and ARP suppression

Read a running fabric: capture VXLAN on the wire, prove what ARP suppression does, and follow a virtual machine between racks through the MAC mobility sequence number.

Run this lab

It needs Standard: its 7 nodes are set to 7 vCPU and 9,728 MB in total.

In your workspace: Shared, then VXLAN EVPN fabrics guided labs, then 13 - Operations with MAC mobility and ARP suppression

Run it on Standard from £5 a day

The free demo can’t run it: it has 6 vCPU and 8 GB, and this lab’s nodes need 7 vCPU and 9,728 MB together. Every lab plan includes every guided lab.

Level
Advanced
Time
About 70 minutes
Nodes need
7 vCPU, 9,728 MB
Smallest plan
Standard

The scenario

The Calder Freight fabric is in production, and the operations team needs to read it, not just build it. A virtual machine is being moved between racks tonight, so you'll follow it through the control plane. You'll also find out what ARP suppression really does, and capture the VXLAN traffic on the wire.

VLAN 10 is VNI 10010, stretched across all three leaves, with an anycast gateway 10.10.10.1 in VRF RED (L3 VNI 50001). The hosts are h1 10.10.10.11 on leaf1, h2 10.10.10.12 on leaf2 and h3 10.10.10.13 on leaf3. Leaves: leaf1 10.255.0.11, leaf2 10.255.0.12 (Cumulus), leaf3 10.255.0.13 (vEOS).

The "virtual machine" is the MAC 02:00:00:00:00:99 with the address 10.10.10.99. You'll move it by hand from h1 to h2.

What you’ll practise

  • Capture and read VXLAN packets on a fabric link
  • Show the effect of ARP suppression
  • Read MAC mobility sequence numbers on Cumulus and vEOS

The tasks

  1. Start the lab
  2. Capture VXLAN on the wire
  3. See ARP suppression at work
  4. Follow a virtual machine between racks

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 Operations with MAC mobility and ARP suppression7 nodes, 6 links. Every link is listed as text below the diagram.spine1leaf1leaf2leaf3h1h2h3Ethernet2swp1swp3eth0swp3eth0Ethernet3eth0Ethernet1swp1Ethernet3Ethernet1
7 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • spine1 Ethernet1 to leaf1 swp1
  • spine1 Ethernet2 to leaf2 swp1
  • spine1 Ethernet3 to leaf3 Ethernet1
  • leaf1 swp3 to h1 eth0
  • leaf2 swp3 to h2 eth0
  • leaf3 Ethernet3 to h3 eth0
Nodes in Operations with MAC mobility and ARP suppression, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
spine1Arista vEOSveos-4.33.1.1F1 vCPU, 2,048 MB
leaf1NVIDIA Cumulus VXcumulus-vx-5.9.11 vCPU, 2,048 MB
leaf2NVIDIA Cumulus VXcumulus-vx-5.9.11 vCPU, 2,048 MB
leaf3Arista vEOSveos-4.33.1.1F1 vCPU, 2,048 MB
h1Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
h2Alpine Linuxclbalpinebase-alpine-base-3-20-31 vCPU, 512 MB
h3Alpine 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 VXLAN EVPN fabrics guided labs.

  3. Open 13 - Operations with MAC mobility and ARP suppression 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, Cisco, HPE, Juniper Networks and NVIDIA. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.