What is Device Rank?

DeviceRank_smallDevice Rank (DR), is the name of the functionality that Quantellium uses to determine the importance of devices. Devices in a project are ranked on an hourly basis.

How is the rank of a device determined?

The rank of a device depends on their role, behavior, utilization and importance in the network! The following device characteristics or properties are taken into account:

  • Is it reachable through its host name? Does an active DNS entry exist for its host name?
  • Is SNMP enabled and correctly configured?
  • How many IP addresses are configured on it?
  • Does it switch or route traffic based on MAC address?
  • Does it switch or route traffic based on IP address?
  • Does it have Power Supply capabilities?
  • Does it act as IP router for its environment?
  • What is its CPU utilization compared to other devices?
  • How many users are currently logged in on it?

How can I see the rank of a device?

The rank of a device is shown on a device’s dashboard page. Right-click a device on the map and select Open | Details.

Device-rank

A screenshot of Device rank. The ranked device is a Linux host that serves as a router between subnets, a virtual machine host, a fileserver and development station. Hence the high score! The #IP and the #CPUUtil items are calculated relative to other devices in the network.

What is Device Rank used for?

In large networks with lots of nodes, the number of events that occur (device up/down, threshold exceeded, trap received..) can be massive. DR is the most sophisticated of the two Alert Decision-making Algorithms provided by Quantellium and plays an important role in making sense of a large number of events and pinpointing the few events that are really important in that mass of information.