Net monitor field test6/1/2023 In the next window, navigate to Basic settings.Under Setup > Hosts > Tag, click Add tag.Perform the following steps on the Checkmk web interface: The first step is to create a Host tag group so that Checkmk uses the correct table. This allows you to restrict Checkmk rules to hosts with or without a specified tag. You fix this with Host tags, which Checkmk organizes into Host tag groups. This is because most vendors use the SNMP table Alias for the interface names, but a few use the table Description. Create a Host tag groupĮven when you name ports, Checkmk sometimes does not take the altered names into the monitoring. By renaming them to uplink sw06 or fw-1, you can immediately see your most important ports and their functions in order to distinguish them from a normal access port. Ports generally don't have names, so in your monitoring environment, you probably have a list of interfaces consisting of numbers or technical descriptions, such as interface 52802. You can use any naming scheme, as long as it's consistent, doesn't consist solely of numbers, and is readable by humans. For example, I name the uplink port to another switch sw06. Having a uniform naming convention makes network administration much easier. Configure your switchesįor this tutorial, you must name the most important ports using the configuration interface on each switch. Checkmk works with rules, so the procedures in this article work for one switch or thousands. If you are not sure how to do that, follow this getting started tutorial or check out this video.įor simplicity, I'm using one switch in this tutorial. The Checkmk Raw Edition is entirely open source and combines professional IT monitoring with the flexibility of open source solutions.īefore I begin, I'll assume you've already added a switch as a host to your monitoring, and you can monitor it using SNMP. Prerequisitesįor this tutorial, I'm using the Checkmk Raw Edition, which you can download for your Linux distribution or pull from its Git repository. Monitoring all your switches provides an overview of your interfaces and helps detect problems such as broken patch or installation cables, dirty fiber optics, configuration errors such as duplex mismatching, or unauthorized connections to unused ports.Ĭheckmk is an open source monitoring tool that automatically monitors all interfaces using a rule-based approach. One challenge with switch monitoring is the network's port utilization: Which ports are free and which are in use? A normal port scan may not show interfaces that are offline during the scan. With Power over Ethernet (PoE) switches, you can monitor the PoE budget for an entire switch or for the traffic on individual ports. SNMP monitoring provides good insights into a device's CPU and RAM utilization and an individual port's bandwidth and usage. Automate Red Hat Enterprise Linux with Ansible and Satellite.Ansible Automation Platform trial subscription.A system administrator's guide to IT automation. Ansible Automation Platform beginner's guide.
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