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HCIP-Datacom Core lab 14 of 14

Capstone - a carrier core for a two-site customer

Build it all from bare addresses: IS-IS and LDP in the core, a VPNv4 route reflector, one site on OSPF and one on BGP, route filtering, a VRRP gateway pair that follows BFD, and a real failover test.

Run this lab

It needs Standard: its 8 nodes are set to 8 vCPU and 14,336 MB in total.

In your workspace: Shared, then HCIP-Datacom Core H12-821 guided labs, then 14 - Capstone - a carrier core for a two-site customer

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

Level
Advanced
Time
About 150 minutes
Nodes need
8 vCPU, 14,336 MB
Smallest plan
Standard

The scenario

You're the lead engineer on Northwind Carrier's first big customer. The racks are cabled and addressed, and nothing else is done. The customer has two sites. Bristol's router speaks OSPF only. Cardiff has two routers for resilience, speaks BGP, and has been promised that its LAN gateway survives a fault inside the carrier. You've got a list of requirements and no step-by-step. Plan it, build it from the bottom up, and test it.

DeviceAddresses
PE1LoopBack0 1.1.1.1, GE0/0/0 10.0.12.1/24, GE0/0/1 172.16.1.1/24 (VPN, to CE1)
PLoopBack0 2.2.2.2, GE0/0/0 10.0.12.2/24, GE0/0/1 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, to CE2), GE0/0/2 172.16.3.1/24 (VPN, to CE3)
CE1LoopBack0 11.11.11.11, GE0/0/0 172.16.1.2/24, GE0/0/1 192.168.1.1/24 (PC1 .10), LoopBack9 10.99.0.1/24 (test network)
CE2LoopBack0 22.22.22.22, GE0/0/0 172.16.2.2/24, GE0/0/1 192.168.2.2/24
CE3LoopBack0 33.33.33.33, GE0/0/0 172.16.3.2/24, GE0/0/1 192.168.2.3/24
PC2192.168.2.10, gateway 192.168.2.254

The customer-facing interfaces on the PEs are left empty, because binding to a VPN instance clears addresses. Add them from this table.

This lab doesn't cover multicast or IPv6: they have labs of their own, and a customer VPN carrying them is a bigger job than this.

What you’ll practise

  • Plan and build a working carrier core with a route reflector
  • Connect one site with OSPF and one with eBGP, in the same VPN
  • Control routes with route policies at the PE and the CE
  • Keep a gateway pair honest with VRRP and BFD
  • Prove the design with a failure, and with traffic

The tasks

  • Task 0: Load the starting configuration
  • Concept: plan first
  • Task 1: Requirement 1: core routing
  • Task 2: Requirement 2: label switching
  • Task 3: Requirement 3: VPNv4 with a route reflector
  • Task 4: Requirement 4: the customer VPN
  • Concept: OSPF as a PE to CE protocol
  • Task 5: Requirement 5: Bristol on OSPF
  • Task 6: Requirement 6: Cardiff on BGP
  • Task 7: Requirement 7: the Cardiff gateway
  • Task 8: Requirement 8: test the promise

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 Capstone - a carrier core for a two-site customer8 nodes and 1 network, 9 links. Every link is listed as text below the diagram.PE1PPE2CE1CE2CE3PC1PC2CARDIFFeth0GE0/0/1GE0/0/1GE0/0/1eth0GE0/0/0GE0/0/0GE0/0/1GE0/0/0GE0/0/1GE0/0/0GE0/0/1GE0/0/0GE0/0/2GE0/0/0
8 nodes and 1 network, 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 GE0/0/0
  • P GE0/0/1 to PE2 GE0/0/0
  • PE1 GE0/0/1 to CE1 GE0/0/0
  • PE2 GE0/0/1 to CE2 GE0/0/0
  • PE2 GE0/0/2 to CE3 GE0/0/0
  • CE1 GE0/0/1 to PC1 eth0
  • CE2 GE0/0/1 to CARDIFF (network)
  • CE3 GE0/0/1 to CARDIFF (network)
  • PC2 eth0 to CARDIFF (network)
Nodes in Capstone - a carrier core for a two-site customer, 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 AR1000V routerhuaweiar1k-5.170-V300R022C00SPC100-Auto-update-esn1 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
CE3Huawei AR1000V routerhuaweiar1k-5.170-V300R022C00SPC100-Auto-update-esn1 vCPU, 2,048 MB
PC1VPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB
PC2VPCS 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 14 - Capstone - a carrier core for a two-site customer 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.