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CCNP Service Provider lab 1 of 23

IOS XR operations: commit, rollback and groups

Learn how IOS XR changes differ from IOS. Use the target configuration and commit, read the commit list, roll back a mistake, deal with a failed commit, use configuration groups, and make a confirmed commit.

Run this lab

It needs Lite: its 2 nodes are set to 2 vCPU and 5,120 MB in total. That fits the free demo too.

In your workspace: Shared, then CCNP Service Provider guided labs, then 01 - IOS XR operations - commit rollback and groups

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Level
Intermediate
Time
About 60 minutes
Nodes need
2 vCPU, 5,120 MB
Smallest plan
Lite

The scenario

You've just joined Fellgate Carrier, a regional service provider (AS 64500), and your first IOS XR routers have arrived in the lab. Everything you've done on IOS so far took effect the moment you pressed Enter. IOS XR doesn't work that way, and that difference is the whole of this lab: before you touch a routing protocol you need to be able to change these routers safely, see what you changed, and undo it.

DeviceInterfaceAddressConnects to
R1Loopback010.255.0.1/32
R1Gi0/0/0/010.0.12.1/30R2 Gi0/0/0/0
R2Loopback010.255.0.2/32
R2Gi0/0/0/010.0.12.2/30R1 Gi0/0/0/0

What you’ll practise

  • Log in to IOS XR and read its prompt, version and packages
  • Build a target configuration and commit it with a label
  • Compare commits and roll back with the commit database
  • Read show configuration failed after a failed commit
  • Apply a configuration group and see inherited settings
  • Use commit confirmed as a safety net

The tasks

  1. Look around
  2. The target configuration and commit
  3. See what happened, and undo it
  4. When a commit fails
  5. Configuration groups
  6. A commit with a safety net

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 IOS XR operations - commit rollback and groups2 nodes, 1 link. Every link is listed as text below the diagram.R1R2Gi0/0/0/0Gi0/0/0/0
2 nodes, with the interface names each link uses.
Every link, as text
  • R1 Gi0/0/0/0 to R2 Gi0/0/0/0
Nodes in IOS XR operations: commit, rollback and groups, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
R1Cisco IOS XRvxrv-k9-demo-6.3.11 vCPU, 2,560 MB
R2Cisco IOS XRvxrv-k9-demo-6.3.11 vCPU, 2,560 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 01 - IOS XR operations - commit rollback and groups 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.