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JNCIA-Junos lab 12 of 15

System logging and monitoring tools

Give two routers a proper logging set-up, cause a real OSPF failure and read it in the logs, trace OSPF hellos as they happen, watch interfaces and packets live, and use ping, traceroute, SSH and telnet from the Junos CLI like a support engineer.

Run this lab

It needs Standard: its 2 nodes are set to 8 vCPU and 10,240 MB in total.

In your workspace: Shared, then JNCIA-Junos JN0-106 guided labs, then 12 - System logging and monitoring tools

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 10,240 MB together. Every lab plan includes every guided lab.

Level
Intermediate
Time
About 55 minutes
Nodes need
8 vCPU, 10,240 MB
Smallest plan
Standard

The scenario

Last night the HQ-DEPOT link dropped for a few minutes and nobody can say when or why: these routers were built without any logging. Your job is to give both routers a standard logging set-up, prove it works by causing a controlled failure, and practise the tools a support engineer uses during an incident.

RouterLinkLANLoopback
HQge-0/0/0 172.16.14.1/3010.1.0.1/24192.168.255.1
DEPOTge-0/0/0 172.16.14.2/3010.4.0.1/24192.168.255.4

What you’ll practise

  • Configure system logging to files and a remote server by facility and severity
  • Read and filter log files with show log, file show and monitor start
  • Trace a protocol with traceoptions, and switch tracing off safely
  • Monitor interfaces with show interfaces extensive, monitor interface and monitor traffic
  • Use ping, traceroute, SSH and telnet from the CLI with the right options

The tasks

  1. Plan the logging
  2. Configure logging on both routers
  3. Cause a failure and read the logs
  4. Trace OSPF
  5. Watch interfaces and packets
  6. Network tools

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 System logging and monitoring tools2 nodes and 2 networks, 3 links. Every link is listed as text below the diagram.HQDEPOTHQ-LANDEPOT-LANge-0/0/2ge-0/0/2ge-0/0/0ge-0/0/0
2 nodes and 2 networks, with the interface names each link uses.
Every link, as text
  • HQ ge-0/0/0 to DEPOT ge-0/0/0
  • HQ ge-0/0/2 to HQ-LAN (network)
  • DEPOT ge-0/0/2 to DEPOT-LAN (network)
Nodes in System logging and monitoring tools, with the image each runs and the vCPU and RAM it’s set to
NodeDeviceImage in Add NodeSet to
HQJuniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 MB
DEPOTJuniper vJunos-routervjunosrouter-24.2R1-S2.54 vCPU, 5,120 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 JNCIA-Junos JN0-106 guided labs.

  3. Open 12 - System logging and monitoring tools 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 JNCIA-Junos labs

All JNCIA-Junos labs

Related labs in other courses

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