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JNCIS-SP lab 2 of 16

Routing instances and RIB groups with load balancing and FBF

Separate a guest network in a virtual router, leak exactly one route with RIB groups, balance traffic over two links, and steer one flow against the routing table.

Run this lab

It needs Standard: its 5 nodes are set to 7 vCPU and 11,264 MB in total.

In your workspace: Shared, then JNCIS-SP JN0-364 guided labs, then 02 - Routing instances and RIB groups with load balancing and FBF

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 11,264 MB together. Every lab plan includes every guided lab.

Level
Intermediate
Time
About 80 minutes
Nodes need
7 vCPU, 11,264 MB
Smallest plan
Standard

The scenario

Skerry's Malton site hands a business LAN and a guest LAN to R1, which has two links to R2, where the servers are. OSPF runs over both links at equal cost. The guest LAN's port has an address but isn't in OSPF. Today every packet uses one link, guests aren't separated from anyone, and nothing steers traffic. You'll fix all three.

DeviceInterfaceAddressNotes
R1ge-0/0/010.0.12.1/30Link A
R1ge-0/0/110.0.21.1/30Link B
R1ge-0/0/210.1.1.1/24Business LAN, passive in OSPF
R1ge-0/0/310.2.2.1/24Guest LAN
R2ge-0/0/0 / ge-0/0/110.0.12.2/30 / 10.0.21.2/30Links A and B
R2ge-0/0/210.9.9.1/24Server LAN, passive in OSPF
HA / HB / SRVeth010.1.1.10 / 10.2.2.10 / 10.9.9.10, all /24Gateways .1

What you’ll practise

  • Install several next hops in the forwarding table
  • Create and use a virtual-router instance
  • Share routes between tables with RIB groups and a policy
  • Build filter-based forwarding with a forwarding instance

The tasks

  1. Load balancing
  2. A virtual-router instance
  3. RIB groups: a controlled leak
  4. Filter-based forwarding

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 Routing instances and RIB groups with load balancing and FBF5 nodes, 5 links. Every link is listed as text below the diagram.HAHBR1R2SRVge-0/0/2eth0ge-0/0/2eth0ge-0/0/3eth0ge-0/0/0ge-0/0/0ge-0/0/1ge-0/0/1
5 nodes, with the interface names each link uses. On a narrow screen, scroll the diagram sideways.
Every link, as text
  • R1 ge-0/0/0 to R2 ge-0/0/0
  • R1 ge-0/0/1 to R2 ge-0/0/1
  • R1 ge-0/0/2 to HA eth0
  • R1 ge-0/0/3 to HB eth0
  • R2 ge-0/0/2 to SRV eth0
Nodes in Routing instances and RIB groups with load balancing and FBF, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
HAVPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB
HBVPCS hostBuilt in to EVE-NGCounted as 1 vCPU, 1,024 MB
R1Juniper vSRX NextGen templatevsrxng-24.4R1.92 vCPU, 4,096 MB
R2Juniper vSRX NextGen templatevsrxng-24.4R1.92 vCPU, 4,096 MB
SRVVPCS 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 JNCIS-SP JN0-364 guided labs.

  3. Open 02 - Routing instances and RIB groups with load balancing and FBF 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.

More JNCIS-SP labs

All JNCIS-SP labs

CloudLabBox is independent of Cisco and Juniper Networks. The lab follows exam topics and isn’t vendor training material; vendor names identify the exams and the images in the workspace.