NQE Comparison Operators

Join me for a look at the comparisons you can use in NQE to filter out on what data you need to see in your query.

Code examples used in video

Using equals (==) to return any default routes in any VRF

foreach device in network.devices
foreach networkInstance in device.networkInstances
let afts = networkInstance.afts
let ipv4Unicast = afts.ipv4Unicast
foreach ipEntry in ipv4Unicast.ipEntries
where ipEntry.prefix == ipSubnet("0.0.0.0/0")
foreach nh in ipEntry.nextHops
where isPresent(nh.ipAddress)


select {
  deviceName: device.name,
  vrfName: networkInstance.name,
  RouteEntry: ipEntry.prefix,
  nextHop: nh.ipAddress
}

Using not equal to (!=), to exclude ASA’s a platform inventory report

foreach device in network.devices
where device.platform.model != "ASAv"
select { 
   deviceName: device.name, 
   deviceModel: device.platform.model 
}

Choose whether or not to report on interface MTU that is:

• Greater than 1500 ( > )
• Greater than or equal to 1500 ( >= )
• Less than 1500 ( < )
• Less than or equal to 1500 (<= )

foreach device in network.devices
foreach interface in device.interfaces
// where interface.mtu > 1500 // Greater than 1500
// where interface.mtu >= 1500 // Greater than or equal to 1500
// where interface.mtu < 1500 // Less than 1500
// where interface.mtu <= 1500 // Less than or equal to 1500

select {
  deviceName: device.name,
  interfaceName: interface.name,
  intfMTU: interface.mtu
}

What have you used comparison operators for to extract new data from your network? Let us know and share your queries below