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HCIP-Datacom Core lab 8 of 14

MPLS L3VPN

Carry two customers with the same addresses over one MPLS core: VPN instances, RDs and route targets, MP-BGP, eBGP to one customer, direct routes for the other, and the two-label stack.

Run this lab

It needs Standard: its 9 nodes are set to 10 vCPU and 14,336 MB in total.

In your workspace: Shared, then HCIP-Datacom Core H12-821 guided labs, then 08 - MPLS L3VPN

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 10 vCPU and 14,336 MB together. Every lab plan includes every guided lab.

Level
Advanced
Time
About 100 minutes
Nodes need
10 vCPU, 14,336 MB
Smallest plan
Standard

The scenario

Northwind's carrier arm has signed two customers. Customer A has two offices with their own routers, which speak BGP. Customer B has two small offices with no router: the PCs plug into the PEs. Both customers use 192.168.1.0/24 and 192.168.2.0/24, and neither will renumber. The core already runs IS-IS and LDP, and its P router is an NE40E, a carrier router on VRP 8, working alongside the AR routers on VRP 5. Your job is to keep the two customers apart on one network, and to keep the P router out of it altogether.

DeviceAddresses
PE1LoopBack0 1.1.1.1, GE0/0/0 10.0.12.1/24, GE0/0/1 172.16.1.1/24 (VPN A, to CE1), GE0/0/2 192.168.1.1/24 (VPN B, PCB1)
P (NE40E)LoopBack0 2.2.2.2, Ethernet1/0/0 10.0.12.2/24, Ethernet1/0/1 10.0.23.2/24
PE2LoopBack0 3.3.3.3, GE0/0/0 10.0.23.3/24, GE0/0/1 172.16.2.1/24 (VPN A, to CE2), GE0/0/2 192.168.2.1/24 (VPN B, PCB2)
CE1 (AS 65001)GE0/0/0 172.16.1.2/24, GE0/0/1 192.168.1.1/24 (PCA1 .10)
CE2 (AS 65002)GE0/0/0 172.16.2.2/24, GE0/0/1 192.168.2.1/24 (PCA2 .10)
VPNRDRoute target
A100:1100:1 both ways
B100:2100:2 both ways

What you’ll practise

  • Explain what the RD and the route target each do
  • Create VPN instances and bind interfaces to them
  • Build an MP-iBGP session for VPNv4
  • Run eBGP with a customer inside a VPN instance
  • Read VPN routes and labels on a PE, and confirm the P router knows none of them

The tasks

  • Task 0: Load the starting configuration
  • Concept: how L3VPN keeps customers apart
  • Task 1: Check the core
  • Task 2: Create the VPN instances
  • Concept: MP-BGP
  • Task 3: Connect the PEs with MP-BGP
  • Concept: PE to CE routing
  • Task 4: Connect the customers
  • Task 5: Read what you built

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 MPLS L3VPN9 nodes, 8 links. Every link is listed as text below the diagram.PE1PPE2CE1CE2PCA1PCA2PCB1PCB2GE0/0/1eth0GE0/0/1eth0GE0/0/2eth0GE0/0/2eth0GE0/0/0Ethernet1/0/0Ethernet1/0/1GE0/0/0GE0/0/1GE0/0/0GE0/0/1GE0/0/0
9 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • PE1 GE0/0/0 to P Ethernet1/0/0
  • P Ethernet1/0/1 to PE2 GE0/0/0
  • PE1 GE0/0/1 to CE1 GE0/0/0
  • PE2 GE0/0/1 to CE2 GE0/0/0
  • CE1 GE0/0/1 to PCA1 eth0
  • CE2 GE0/0/1 to PCA2 eth0
  • PE1 GE0/0/2 to PCB1 eth0
  • PE2 GE0/0/2 to PCB2 eth0
Nodes in MPLS L3VPN, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
PE1Huawei AR1000V routerhuaweiar1k-5.170-V300R022C00SPC100-Auto-update-esn1 vCPU, 2,048 MB
PHuawei NetEngine NE40Ehuaweine40e-bundled2 vCPU, 2,048 MB
PE2Huawei AR1000V routerhuaweiar1k-5.170-V300R022C00SPC100-Auto-update-esn1 vCPU, 2,048 MB
CE1Huawei AR1000V routerhuaweiar1k-5.170-V300R022C00SPC100-Auto-update-esn1 vCPU, 2,048 MB
CE2Huawei AR1000V routerhuaweiar1k-5.170-V300R022C00SPC100-Auto-update-esn1 vCPU, 2,048 MB
PCA1VPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB
PCA2VPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB
PCB1VPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB
PCB2VPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 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 HCIP-Datacom Core H12-821 guided labs.

  3. Open 08 - MPLS L3VPN 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 Huawei. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.