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CCNP Service Provider lab 17 of 23

L2VPN: EoMPLS pseudowires and VLAN rewrites

Carry Ethernet across an MPLS core on IOS XE. Build a port-based pseudowire, then a VLAN service with tag rewrites that joins VLAN 200 to VLAN 300, with an IOS XR router switching labels in the middle.

Run this lab

It needs Standard: its 5 nodes are set to 5 vCPU and 11,776 MB in total.

In your workspace: Shared, then CCNP Service Provider guided labs, then 17 - L2VPN - EoMPLS pseudowires and VLAN rewrites

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 5 vCPU and 11,776 MB together. Every lab plan includes every guided lab.

Level
Advanced
Time
About 75 minutes
Nodes need
5 vCPU, 11,776 MB
Smallest plan
Standard

The scenario

Harbour Logistics has two warehouses, and it wants a plain Ethernet connection between them, as if there were a long cable. It keeps its own routing, and Fellgate Carrier should carry frames, not routes. That's a Layer 2 VPN: an E-Line in Metro Ethernet Forum terms.

Harbour wants two services:

  • a whole port, carried as it is;
  • one VLAN. It's VLAN 200 at warehouse 1 and VLAN 300 at warehouse 2, and neither side wants to renumber.

PE1 and PE2 are CSR 1000v routers running IOS XE. P runs IOS XR. IS-IS and LDP are up across all three. The PE's customer ports have nothing on them.

Why IOS XE here. On this XRv image a pseudowire comes up, with all the right control plane, but frames never cross it: there's no L2VPN data plane. The CSR forwards them properly, and P only has to switch labels. The XR commands are in the concept notes.

DeviceInterfaceAddressConnects to
CE1Gi0/1192.0.2.1/24PE1 Gi3
CE1Gi0/0.200198.51.100.1/24
PE1Loopback010.255.0.1/32
PE1Gi110.0.12.1/30P Gi0/0/0/0
PLoopback010.255.0.2/32
PGi0/0/0/010.0.12.2/30PE1 Gi1
PGi0/0/0/110.0.23.1/30PE2 Gi1
PE2Loopback010.255.0.3/32
PE2Gi110.0.23.2/30P Gi0/0/0/1
CE2Gi0/1192.0.2.2/24PE2 Gi3
CE2Gi0/0.300198.51.100.2/24

What you’ll practise

  • Explain pseudowires, VC IDs and the two labels
  • Build a port-based EoMPLS pseudowire with a control word
  • Use service instances and VLAN rewrites
  • Join two different VLAN numbers across the core
  • Name the MEF services and the Ethernet standards

The tasks

  1. Pseudowires and the service model
  2. Port-based pseudowire
  3. VLAN service and tag rewriting
  4. Prove it's in the data plane
  5. Carrier Ethernet concepts

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 L2VPN - EoMPLS pseudowires and VLAN rewrites5 nodes, 6 links. Every link is listed as text below the diagram.CE1PE1PPE2CE2Gi0/0Gi2Gi0/1Gi3Gi1Gi0/0/0/0Gi0/0/0/1Gi1Gi2Gi0/0Gi3Gi0/1
5 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • CE1 Gi0/0 to PE1 Gi2
  • CE1 Gi0/1 to PE1 Gi3
  • PE1 Gi1 to P Gi0/0/0/0
  • P Gi0/0/0/1 to PE2 Gi1
  • PE2 Gi2 to CE2 Gi0/0
  • PE2 Gi3 to CE2 Gi0/1
Nodes in L2VPN: EoMPLS pseudowires and VLAN rewrites, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
CE1Cisco IOSvvios-adventerprisek9-m.spa.159-3.m91 vCPU, 512 MB
PE1Cisco CSR 1000vcsr1000vng-universalk9.17.03.08a-serial1 vCPU, 4,096 MB
PCisco IOS XRvxrv-k9-demo-6.3.11 vCPU, 2,560 MB
PE2Cisco CSR 1000vcsr1000vng-universalk9.17.03.08a-serial1 vCPU, 4,096 MB
CE2Cisco IOSvvios-adventerprisek9-m.spa.159-3.m91 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 CCNP Service Provider guided labs.

  3. Open 17 - L2VPN - EoMPLS pseudowires and VLAN rewrites 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 Cisco. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.