This NQE addresses the issue of identifying duplicate IP addresses during a migration to EVPN (Ethernet Virtual Private Network). As overlapping IPs can occur during this migration, this custom NQE (Network Query Engine) detects and reports on these duplications. By using a specific command output ("show evpn database state duplicate"), the solution identifies instances of duplicate IPs across the network. The query then generates a report whenever duplicate entries are found, allowing you to quickly identify and resolve IP conflicts, ensuring a smoother and more efficient migration process.
Benefits
- Accurate IP conflict detection: Automatically identifies duplicate IP addresses during the EVPN migration, reducing the risk of configuration errors and network disruptions.
- Enhanced troubleshooting: Provides a clear report of overlapping IPs, allowing the customer to quickly pinpoint and address conflicts without extensive manual checks.
- Smoother migration process: Ensures a more efficient EVPN migration by proactively identifying and resolving IP duplication issues, minimizing downtime and potential connectivity problems.
How it works:
This NQE reports violations whenever there are returned entries in the “show evpn database state duplicate” output.
foreach device in network.devices
where device.platform.vendor == Vendor.JUNIPER
let outputs = device.outputs
foreach command in outputs.commands
where command.commandText == "show evpn database state duplicate"
let violation = length(command.response) > 108
select {
violation,
deviceName: device.name,
CommandOutput: command.response,
length: length(command.response)
}
Take this NQE a step further with Intent Verifications.
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