Monitoring DeltaNet Lambdatrail WDM devices

DeltaNet has cool WDM products that one of our customer has deployed in a life-cycle project for a large WAN. In collaboration with the DeltaNet engineer, I have implemented a Zenoss ZenPack to monitor the specifics of their Lambdatrail XWDM multiplexers. The ZenPack provide these features: devices located under their own device class collect all […]

lambdatrail hardware

A Zenoss zenpack to monitor Fortinet FortiGate firewalls

This is a Zenpack for Fortinet FortiGate firewalls. The Fortigate MIB is very well-designed and allowed for a comprehensive Zenpack implementation using zenpacklib. Features: serial number and firmware version interface traffic CPU load memory load disk usage session count IPS statistics Sensors (voltage, temperature, fans, PSU) Vdoms Per Vdom : interface traffic CPU load memory […]

get device status within a zenoss event transform

Event transformation is a cool feature of Zenoss, but care must be taken to avoid slowing down Zenoss too much, as badly performing event transformations applied to a large number of events might slow down Zenoss. Besides, any exception within an event transformation ends up in $ZENHOME/log/zeneventd.log, so your code needs extra care to avoid […]

Using Ansible to Fetch Information from IOS Devices

In this article, we’ll look at various Ansible modules that can be used to fetch information from Cisco IOS devices: ios_facts, snmp_facts and ios_command. Regardless of the used module, we’ll store the output in a JSON file that can easily be used in other tools. ios_facts ios_facts is the obvious choice. It connects to the […]

rsyslog Lookup Tables Missing Manual

Since a very long time, the rsyslog documentation mentions a lookup table feature, but as a proposal only. However, it is fully implemented as of version 8.18.0 and should become official “very soon”. On top of this, there is a bug in the documentation so the page explaining the actual implementation is not linked from […]