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JNCIP-ENT lab 9 of 19

Anycast RP and MSDP

Make the rendezvous point redundant: give two routers one RP address, share sources between them with anycast-pim, then do the same job with MSDP, while a real stream runs.

Run this lab

It needs Professional: its 6 nodes are set to 15 vCPU and 18,432 MB in total.

In your workspace: Shared, then JNCIP-ENT JN0-650 guided labs, then 09 - Anycast RP and MSDP

Run it on Professional from £7.50 a day

The free demo can’t run it: it has 6 vCPU and 8 GB, and this lab’s nodes need 15 vCPU and 18,432 MB together. Every lab plan includes every guided lab.

Level
Advanced
Time
About 80 minutes
Nodes need
15 vCPU, 18,432 MB
Smallest plan
Professional

The scenario

The stream now works, but one RP is one point of failure, and a new source can't be found while that RP is down. Northmere wants two RPs that back each other up with no change on any other router. The answer is anycast RP: both RPs share one address, and unicast routing sends each router to the nearest. You'll build it two ways, with PIM's own anycast feature and then with MSDP, the protocol that joins RPs in separate domains. This time the source, H3, is behind R3, which isn't an RP, and the viewers are H1 and H2, one behind each RP.

DeviceInterfaceAddressLink
R1ge-0/0/0, ge-0/0/110.0.12.1/30, 10.0.13.1/30To R2, to R3
R1ge-0/0/2, lo010.1.1.1/24, 10.255.0.1/32H1's LAN
R2ge-0/0/0, ge-0/0/110.0.12.2/30, 10.0.23.1/30To R1, to R3
R2ge-0/0/2, lo010.2.2.1/24, 10.255.0.2/32H2's LAN
R3ge-0/0/0, ge-0/0/110.0.13.2/30, 10.0.23.2/30To R1, to R2
R3ge-0/0/2, lo010.3.3.1/24, 10.255.0.3/32H3's LAN
H1, H2, H3eth010.1.1.10, 10.2.2.10, 10.3.3.10Gateway is .1 on each LAN

OSPF runs on all three routers, and PIM sparse mode runs on all interfaces. There's no RP yet.

What you’ll practise

  • Configure a shared anycast address with a primary loopback
  • Configure anycast RP with PIM
  • Explain why RPs must share sources
  • Peer RPs with MSDP and read Source-Active state

The tasks

  1. Give both RPs one address
  2. Share sources with anycast-pim
  3. Use MSDP in place of anycast-pim

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 Anycast RP and MSDP6 nodes, 6 links. Every link is listed as text below the diagram.R1R2R3H1H2H3ge-0/0/2eth0ge-0/0/2eth0ge-0/0/2eth0ge-0/0/1ge-0/0/1ge-0/0/0ge-0/0/0ge-0/0/1ge-0/0/0
6 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 R3 ge-0/0/0
  • R2 ge-0/0/1 to R3 ge-0/0/1
  • R1 ge-0/0/2 to H1 eth0
  • R2 ge-0/0/2 to H2 eth0
  • R3 ge-0/0/2 to H3 eth0
Nodes in Anycast RP and MSDP, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
R1Juniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 MB
R2Juniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 MB
R3Juniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 MB
H1EVE-NG GUI server (Docker)eve-gui-server:latest1 vCPU, 1,024 MB
H2EVE-NG GUI server (Docker)eve-gui-server:latest1 vCPU, 1,024 MB
H3EVE-NG GUI server (Docker)eve-gui-server:latest1 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 JNCIP-ENT JN0-650 guided labs.

  3. Open 09 - Anycast RP and MSDP 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 JNCIP-ENT labs

All JNCIP-ENT labs

Related labs in other courses

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.