NNM Hardware Requirements

Enterprise networks can vary in performance, capacity, protocols, and overall activity. Resource requirements to consider for NNM deployments include raw network speed, the size of the network being monitored, and the configuration of NNM.

The following chart outlines some basic hardware requirements for operating NNM:

Version Installation scenario RAM Processor Hard Disk
All Versions NNM managing up to 50,000 hosts * (**) 2 GB RAM (4 GB RAM recommended) 2 2GHz cores 20 GB HDD minimum
NNM managing more than 50,000 hosts ** 4 GB RAM (8 GB RAM recommended) 4 2GHz cores 20 GB HDD minimum
NNM running in High Performance mode 16 GB RAM (HugePages memory: 2 GB) 10 2GHz cores with hyper-threading enabled 20 GB HDD minimum

*The ability to monitor a given number of hosts depends on the bandwidth, memory, and processing power available to the system running NNM.

**For optimal data collection, NNM must be connected to the network segment via a hub, spanned port, or network tap to have a full, continuous view of network traffic.

Note: Research your VM software vendor for comparative recommendations, as VMs typically see up to a 30% loss in efficiency compared to dedicated servers. NNM supports VMware's vmxnet3 driver.

High Performance Mode

To run NNM in High Performance mode, a minimum of two of the following types of Intel NICs are required; one as a management interface and at least one as a monitoring interface:

  • e1000 (82540, 82545, 82546)
  • e1000e (82571, 82574, 82583, ICH8.ICH10, PCH.PCH2)
  • igb (82575, 82576, 82580, I210, I211, I350, I354, DH89xx)
  • ixgbe (82598, 82599, X540, X550)
  • i40e (X710, XL710)
  • NT40A01-4x1